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API Legacy AXS, Operator'S Manual

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API Legacy AXS Operator'S Manual Download Page 26

 

L e g a c y   A X S  

A P I  

 

 

 

 
 

26 

HF (High-Frequency): Peaking/Shelving Switch: Selects between peaking and shelving EQ curves for 

the high-frequency band

 

550b Discrete 4-Band EQ 

Features 

 

4 bands of the famous API equalization 

 

Each band offers 7 API selected frequency centers 

 

Reciprocal and repeatable filtering 

 

12dB of boost/cut per band 

 

High and Low EQ Bands offer shelf/peak switching 

 

"Proportional Q" narrows filter Q at extremes 

 

Traditional API fully discrete circuit design 

 

High headroom: +30dB clip level 

 

Based on API's original 550 from the late '60s, the API 550b is a continuation of 

the  EQ  that played  a  major  role  in  the  history  of music  recording,  but  with  an 

additional filter band and several new frequencies. Incorporating API's exclusive 

circuitry and proprietary components (such as the legendary API 2520 Op Amp), 

the 550b artfully blends the past with the present. So many hit records still depend 

on the unique 550 sound that engineers around the world find it to be an invaluable 

tool. In fact, the 550b design has been taken from the original blue prints and 

spec control drawings from the API archives. It is unlike any other EQ you will ever 

use. 

 

Rather than offer a huge assortment of complex features, the API 550b provides 

exactly the right number of controls. Its four EQ bands are overlapped significantly 

to  aid  in  dual  roles  as  problem  solver  and  sweetening  device  with  each  band 

offering seven switchable filter frequencies that span four-to-five octaves. These 

frequencies, purposely selected to be musical rather than numeric, were selected 

by an experienced "who's who" list of the industry's most proficient engineers. 

 

Making use of API's "Proportional Q," an innovation designed by Saul Walker in 

the '60s, the 550b intuitively widens the filter bandwidth at minimal settings and narrows it at higher 

settings without the need for additional bandwidth controls. This unique feature minimizes the "phase-

shift" sound found in many equalizers. In addition, the reciprocal nature of the 550b enables the user 

to "undo" what has been done previously with exact precision. 

 

The benefits of the API 550b are most obvious to those who work with EQ on a continuous basis. If 

major tonal restructuring is required, the extraordinary headroom made possible with API's 2520 Op 

Amp offers the predictable and warm analog performance, even under duress. With a surprisingly wide 

range of tonal variations, the 550b is an invaluable and professional audio tool with great flexibility and 

excellent sonic ability. 

 

The controls for the 550b EQ function as follows: 

 

IN (in/out switch): Activates the channel EQ

 

 

Hard bypass when not engaged 

 

A LED indicator illuminates when engaged 

 

HF (High-Frequency): Peaking/Shelving Switch: Selects between peaking and shelving EQ curves for 

the high-frequency band. 

 

Frequency  Selection  (Center  Knob):  Selects  the  center  frequency  for  the  selected  band.  Center 

frequencies vary by band: 

 

High: 

2.5kHz, 5kHz, 7kHz, 10kHz, 12.5kHz, 15kHz, 20kHz 

 

High-Mid: 

800Hz, 1.5kHz, 3kHz, 5kHz, 8kHz, 10Hz, 12.5kHz

 

 

Low-Mid: 

75Hz, 150Hz, 180Hz, 240Hz, 500Hz, 700Hz, 1kHz 

 

Low: 

30Hz, 40Hz, 50Hz, 100Hz, 200Hz, 300Hz, 400Hz 

 

Frequencies are indicated in 

blue

 numbers 

 

Boost and Cut (Ring): Sets the amount of boost or cut for the selected band. 

Summary of Contents for Legacy AXS

Page 1: ... Discrete Mixing and Recording Console OPERATOR S MANUAL V2 0 Written for Automated Processes Incorporated by Daniel Pfeifer 2017 ...

Page 2: ...8301 Patuxent Range Road Jessup MD 20794 USA 301 776 7879 http www apiaudio com ...

Page 3: ...t Output 12 Multitrack Buses 13 Stereo Program Buses 13 Panning 13 Session Signal Flow 13 Small Fader to Multitrack 14 Large Fader to Multitrack 15 Signal Flow Block Diagram 15 Fader Bypass 15 Channel Strip Overview 16 Channel Input 17 Upper 200 Slot 17 212 Mic Preamp 17 205 Direct Input 18 Channel Input Patch Points 19 Channel Signal Processing 21 Lower 200 Slot 21 225 Compressor Limiter 21 235 N...

Page 4: ...Program Bus Master and Master Fader Signal Flow 51 624SM Stereo Program Master Module 52 Stereo Grand Master 52 2500C Stereo Bus Compressor 53 946 Stereo Program Master Faders 53 Main Stereo Meters 53 Stereo Program Master Patch Points 54 Multitrack Buses 56 Multitrack Signal Flow 56 624M Multitrack Bus Masters 56 Multitrack Patch Points 57 Auxiliary Buses and Masters 58 Auxiliary Signal Flow 58 A...

Page 5: ...turn Patch Points 79 Stereo Program Master Patch Points 79 2500C Stereo Bus Compressor Patch Points 80 Multitrack Patch Points 80 Auxiliary Master Patch Points 80 Monitor System Patch Points 83 Talkback Patch Points 84 Oscillator Patch Points 84 Phase Reverse polarity inverter 84 Appendix 85 API 2500C Stereo Bus Compressor 85 Setup Documents 91 2500C Setup Sheet 91 205 Setup Sheet 92 212 Setup She...

Page 6: ...els Multitrack Buses Program Masters and so on Sections one and two are useful to all users and should be read thoroughly before purchase and delivery Experienced engineers may get up and running quickly by simply checking the graphic overviews at the start of the sections If you are new to API consoles and multitrack recording it s recommended that you read the entire manual at least once and kee...

Page 7: ...s and producers The Legacy AXS combines a traditional easy to use in line input output architecture with flexible customization options and superior sound quality The Legacy AXS is built to the same exacting standards of reliability sonic performance and investment grade audio of the API Legacy Legacy Plus and Vision consoles setting the standard for modern recording consoles Features 32 to 80 cha...

Page 8: ...any VPR Alliance approved 500 module except preamps 40 600Hz 12dB 8va high pass sweep filter in the Large Fader path 50Hz 12dB 8va fixed high pass filter in the Small Fader path Balanced Insert in each path Phase reverse polarity inverter in each path Twelve auxiliary sends and buses 6 mono 3 stereo Channel VU metering for Large Fader Small Fader Direct Output and Multitrack Bus Peak indicator in ...

Page 9: ...on options for inputs and signal processing Configuration of the upper 200 slot lower 200 slot the 500 EQ slot allows the user to customize the console for their desired workflow and use The upper 200 slot may be configured with one of two preamp options while the lower 200 slot may be fitted with one of three dynamic processors or filters The 500 EQ slot can be fitted with one of four API EQ and ...

Page 10: ... also facilitates pan pot activation in each path The assignment module slots can only be fitted with API 624 Bus Assignment Modules Multitrack Bus outputs and access to the program bus signal flow are available in the System patch bay 500 Series Equalizer Slot The 500 Series slot on each channel strip is intended to house the channel equalizer EQ This 500 Series slot complies with VPR Alliance st...

Page 11: ...reo returns 2500C Bus Compressor monitoring cues effects and external studio audio devices Patch bays for consoles with frames for 32 thru 64 channels can be mounted onboard the console or mounted externally Patch bays for consoles frames larger that 64 channels must be externally mounted Optional Work Station Producer s Desk An optional producer s desk can be specified at the time the order for t...

Page 12: ...on is engaged The default input for the Large Fader path is Line In and the default input for the Small Fader path is the Preamp output Each input source cannot feed both paths simultaneously so the Preamp Line In or Alt Line In can only feed one path at a time Engaging the FLIP button will swap the input sources between fader paths so the Preamp will feed the Large Fader path and the Line In will...

Page 13: ...ds on the selected signal functions The operational controls allow for both paths to be used for either function Each path can provide a different function during the various types of recording sessions The signal routing of input and output of each path is handled by the 968 Input Module and the 624 Bus Assignment Module Multitrack Recording and Overdubs In a typical multitrack recording session ...

Page 14: ...MP pre EQ Insert instead of post MUTE Illuminates when engaged While either configuration is appropriate most engineers will choose to use the Small Fader path as the Record Path to route microphones and other sources to the multitrack recorder and use the Large Fader path the Mix Path to monitor the multitrack return via the Program Buses Using this method the console will be in a basic mixing co...

Page 15: ...TB or STC and the PAN buttons in the Small Fader SM section on the 624 Bus Assignment module NOTE The multitrack recorder may alternately be fed from the Multitrack Buses by patching the BUS OUTPUT patch points to the MULTITRACK INPUT patch points Signal Flow Block Diagram The block diagram below indicates the signal flow through the Small and Large Fader signal paths A more technical and detailed...

Page 16: ...ged standard configuration 500 series equalizers o 550A 3 Band EQ o 550b 4 Band EQ o 560 10 Band Graphic EQ o 565 Filter Bank Any VPR Alliance approved 500 Series module except preamps 968 Input Module Channel Controls Input Selection Input FLIP and ALT Line In to Small Fader 6dB Line In Pad In Out Signal Processing Routing COMP LRG and EQ SM Output Routing o Direct Output Routing DIR SM and DIR P...

Page 17: ...o house the channel preamp Two API 200 Series preamplifier modules are available for installation Only the upper 200 slot is wired to accept a preamp so only one preamp can be installed in each channel strip 212 Microphone Preamplifier standard configuration OR 205 Direct Input 212 Mic Preamp Features Wide range GAIN control 20dB Pad 48V phantom power switch Mic input transformer LED output Meter ...

Page 18: ...two functions may eliminate the need for any EQ on the instrument when recording keeping the signal pure The input is designed specifically to load a pickup the same way that a tube guitar amp would retaining all of the tone and minimizing the loading effect on the pickup This minimal path eliminates the need to use a standard direct box which more times than not only converts the signal to a bala...

Page 19: ...only 8 channels are shown below MIC TIE LINE Studio microphone outputs Full normal to MIC PREAMP INPUT Breaking output Inserted patch cord will replace studio tie line connection MIC PREAMP INPUT 212 Mic Preamp inputs Balanced low impedance mic level input Full normal from MIC TIE LINE patch points Breaking input Inserted patch cord will replace normalled connection Not used with 205 Direct Input ...

Page 20: ...virtual instruments extra DAW returns etc normalled to the ALT LINE INPUT patch points are not provided in the standard configuration However the ALT LINE INPUTs are available via a multi pin connector on the back of the patch bay to allow normal interfacing to these points ...

Page 21: ...n individual channels by engaging the COMP LRG compressor large button on the 968 Input Module or console wide by engaging the COMP LRG button in the Master Section The processor in the lower 200 slot can be bypassed console wide by engaging the COMP BYP button in the Master Section This provides a shorter signal path if the lower 200 slot signal processing is not needed This option is not availab...

Page 22: ...between new and old types of compressors NEW Feed forward compressor OLD Feed back compressor dB Gain reduction Meter LED meter indicates the amount of gain reduction 235 Noise Gate Expander Features Threshold control from 45 to 25dBu Variable Fine Adjustable Depth to 80dB Adjustable Release Hold Time 50mS to 3sec 2 1 Expander or Noise Gate selection Release or Hold switch for release control knob...

Page 23: ...nction as follows IN in out switch Activates the module Illuminates when engaged THRESH Threshold Sets the activation threshold Variable from 25 to 45dB DEPTH Sets the amount of attenuation gain reduction from 0 to 80dB Although the Depth control has a full range of 80dB the scale is expanded in the first half of rotation so 0 to 9 dB is available for fine tuning of subtle undetectable gating The ...

Page 24: ... a broad range of frequencies throughout the entire audio spectrum Because of the subtle nature of the 215 filter it finds a home with uses like rolling off the low end of a hi hat where a natural sound is desired not the usual phase shifter sound of a 18 to 24dB per octave filter found on most consoles It can also be used to thin out room mics without the complete loss of low end which again usua...

Page 25: ... gain at each point The twenty one equalization points are divided into three overlapping ranges The high and low frequency ranges are individually selectable as either peaking or shelving and a band pass filter may be inserted independently of all other selected equalization settings Frequency ranges and boost cut are selected by three dual concentric switches and a pushbutton IN switch allows th...

Page 26: ...cted to be musical rather than numeric were selected by an experienced who s who list of the industry s most proficient engineers Making use of API s Proportional Q an innovation designed by Saul Walker in the 60s the 550b intuitively widens the filter bandwidth at minimal settings and narrows it at higher settings without the need for additional bandwidth controls This unique feature minimizes th...

Page 27: ...traordinary headroom made possible with the 2520 offers consistent analog performance even when using radical EQ curves Of course the 2520 s ability to drive low impedance loads is key when it is paired with API s custom output transformers The results are quite audible with better low frequency reproduction and tighter imaging which gives you that legendary API punch in your gut sound The 10 prec...

Page 28: ...quency of the low pass filter Sweepable from 500Hz to 20kHz SLOPE Low pass Sets the slope of the low pass filter 6dB 8va or 12dB 8va IN Notch in out switch Activates the notch filter when engaged Hard bypass when not engaged NOTCH Q Sets the Q quality factor of the notch filter NOTCH RANGE Multiplies the Notch FREQ by the following factors x1 x10 x100 NOTCH FREQ frequency Sets the frequency of the...

Page 29: ...o the Small Fader path Patched signal is inserted in the Small Fader path when the INS button is engaged Pre fader post EQ Lower 200 Slot Patch Points COMP IN SIDE CHAIN and COMP OUT patch points in the Channel patch bay provide access to the lower 200 slot signal processor interfacing COMPRESSOR INPUT Lower 200 slot input Balanced low impedance line level input Breaking input Inserted patch cord ...

Page 30: ...annel Faders and Controls 968 Input Module The illustration above shows the 968 Input Module with a brief description of each control This serves as a quick reference guide A more detailed description of each control follows ...

Page 31: ...controls for the Small Fader path function as follows TRIM Sets the amount of pre fader level Trim boost 0 to 12dB of gain Located pre fader so the added gain is reflected in all post fader stages Aux Sends Solos Bus Assignments and Direct Output PK Peak A red LED illuminates when the preset Peak Reference level is reached in the Small Fader audio path The peak level is selected by the PEAK REFERE...

Page 32: ... located pre the Small Fader The Insert Return is active only when the INS button is engaged Controlled by automation Illuminates when engaged SMALL FADER Level control for the Small Fader path 45mm resistive fader 10dB of gain dB of attenuation Unity gain when set to 0dB Global 0dB Fader Bypass in Master Section Not automatable NOTE A 0dB Small Fader bypass can be applied to all channels by engag...

Page 33: ...uting controls are also included in this section and function as follows FLIP Swaps the input sources between the Large and Small Fader paths The upper 200 slot Preamp Output is the default source for the Small Fader path The Line Input is the default source for the Large Fader path Will engage on all channels when the FLIP button is engaged in the Master Section Illuminates when engaged DIR PRE D...

Page 34: ...channel is soloed Protects from global changes to channel input source Illuminates when engaged Ø Phase Reverse Inserts a polarity inverter into the Large Fader path Illuminates when engaged INS Insert Activates the Large Fader path Insert Return Insert Send is fed from the output of the 500 Series EQ slot Insert Send is always active Insert Return is located pre the Large Fader The Insert Return ...

Page 35: ...uminates in red when engaged LARGE FADER Controls the output level of the Large Fader audio path Full size 100mm resistive fader 10dB of gain dB of attenuation Unity gain when set to 0dB 0dB fader bypass in via automation system Controlled by automation NOTE A 0dB Large Fader bypass can be applied via the automation system This feature is useful if an additional Large Fader gain stage is not neede...

Page 36: ... any purpose Mono Aux Sends 1 6 are primarily used as effects sends during recording and mixing Stereo Aux Sends 7 8 9 10 and 11 12 are typically used as cue sends during recording and as stereo effects sends during mixing Mono Sends 1 6 Each pair of mono Aux Sends uses dual mono concentric pots for level control The odd numbered send is controlled by the inside or top pot and the even numbered se...

Page 37: ... Stereo pan potentiometer for each stereo send The outside ring or bottom pot is the pan pot for each stereo send 2 0dB pan law PRE Pre Fader Engaging the PRE button will switch sends 5 6 7 8 or 9 10 11 12 to be sourced pre fader from the assigned path Normally fed post fader from the Large Fader path Illuminates when engaged NOTE Aux Sends 5 12 can be fed from the Small Fader path by engaging the...

Page 38: ...s 1 24 on channel VU meters 1 24 STA STB STC and GM on channel VU meters 25 32 Illuminates when engaged CHAN VU 0 10 Inserts a 10dB pad before the channel VU Meter input Use to meter high level signals Illuminates when engaged Large Fader and Small Fader Peak Indicators Each fader path is equipped with a LED Peak Indictor The peak reference level is set on a global basis by the PEAK THRESHOLD sele...

Page 39: ...Output is fed post mute from the Large Fader path by default The Direct Output cannot feed more than one of these destinations simultaneously The source of the Direct Output is determined by the DIR PRE and DIR SM buttons on the 968 Input Module DIR PRE Direct Output Pre fader Routes the Direct Output pre fader from the assigned fader path The Direct Output is routed post fader by default Output i...

Page 40: ...r STC The engaged button s will illuminate indicating the assignment has been made to that bus Channel Pan Pots The pan pots are not engaged by default in either fader path Without the PAN button engaged all multitrack and program bus assignments are mono At the bottom of the 624 module are two PAN switches one for each fader path SM or LG The PAN switch must be engaged for each path for the pan p...

Page 41: ...OUTPUT LINE INPUT Large Fader path LARGE INSERT SEND Large Fader path LARGE INSERT RETURN Large Fader path DIRECT OUTPUT MULTITRACK INPUT The following section outlines the channel patch points in the order they appear in the Channel Bay Depending on console configuration there will be patch points for 32 48 64 or 80 channels in the bay In the interest of space patch points for only 8 channels are...

Page 42: ...nced low impedance line level input Breaking input Inserted patch cord will replace normalled connection SIDE CHAIN input Lower 200 slot detection path input Balanced low impedance line level input Full normal from COMPRESSOR INPUT Breaking input Inserted patch cord will replace normalled connection COMPRESSOR OUTPUT Lower 200 slot output Balanced low impedance line level output Outputs split if p...

Page 43: ...INPUT Outputs split if patched MULTITRACK INPUT Connection to multitrack recorder inputs Half normalled from the DIRECT OUTPUT Breaking input Inserted patch cord will replace normalled connection NOTE The multitrack recorder may alternately be fed from the Multitrack Buses by patching the BUS OUTPUT patch points to the MULTITRACK INPUT patch points ...

Page 44: ...sive recording and production system PSU Indicators Multitrack Bus Masters Stereo Returns Master Section Channel Routing Masters CR Monitor Controls Studio Monitor Controls Solo Masters Meter Controls Automation Controller Main Stereo Meters 2500C Stereo Bus Compressor Stereo Program Bus Masters Auxiliary Masters User Switches Oscillator Peak Threshold Talkback Stereo and Group Master Faders ...

Page 45: ...he Line Input will be routed to the Small Fader path Input sources on individual channels can be reset by engaging the FLIP button on the 968 Input Module Illuminates briefly when engaged to acknowledge activation but then goes out SM ALT LINE Switches the Small Fader path input to the Alternate Line In ALT globally Replaces the preamp output with the Alt Line In as the Small Fader path source on ...

Page 46: ...Le gacy AX S AP I 46 0dB SM Small Fader Engages a 0dB fader bypass for Small Faders globally Illuminates when engaged ...

Page 47: ... effects returns and other applications Each Stereo Return can be assigned to any or all the three stereo Program Buses as well as directly to the program Grand Master Each Stereo Return is equipped as follows Balanced low impedance line level inputs Alternate input from associated pair of Multitrack Buses Input TRIM 6dB Balanced stereo INSERT controlled by automation Mono input summing Stereo Dir...

Page 48: ...ch points via half normal Outputs of external devices can be connected to the AUX DEVICE OUTPUT patch points via a multi pin connector on the rear of the System patch bay This will allow a normalled regular connection through the patch bay If desired the output of the associated pair Multitrack Bus Masters can be routed to the Stereo Return input by engaging the BUS button This will replace the pa...

Page 49: ...lo Safe mode for the Stereo Return The SAFE button protects the Stereo Return from being muted when the Solo In Place function is active and another return or channel is soloed Illuminates when engaged MONO Sums the inputs of the Stereo Return to mono Sums pre Insert Illuminates when engaged BUS Routes the associated pair of Multitrack Buses to the input of the Stereo Return Replaces the STEREO RE...

Page 50: ...e to that bus Stereo Return Patch Points The following section outlines Stereo Return patch points AUX DEVICE OUTPUT Stereo output connections for external devices Balanced line level low impedance Half normalled to the STEREO RETURN INPUT Outputs split if patched STEREO RETURN INPUT Balanced line level low impedance Half normalled from the AUX DEVICE OUTPUT Breaking input Inserted patch cord will...

Page 51: ...nd assignment to the Grand Master A stereo Grand Master is provided for summing the A B and C Program Bus outputs and the outputs of the Stereo Returns into a single master stereo program output Like the Program Masters the Grand Master is equipped with an on off switch balanced insert with switch 100mm automated resistive fader output trim pots and associated patch points but also inputs for an e...

Page 52: ...ates when engaged The three stereo Program Buses may be fed simultaneously from the following sources Small Fader path output Large Fader path output Stereo Returns 1 6 Stereo Program Bus assignments from channels are made on the 624 Bus Assignment Module Stereo Program Bus assignments are made direct Stereo Grand Master A stereo Grand Master Bus and Master Fader are provided to facilitate a wide ...

Page 53: ... is the master output level control for the Grand Master output Master Faders are controlled by automation Main Stereo Meters A pair of large high quality VU meters are installed in the top bay of the master bucket for indicating the stereo Program Playback and Solo levels The source for the Main Stereo Meters is selected using the Control Room Monitor source selectors MNTR Accordingly the Main Me...

Page 54: ... TRACK INPUTS 1 3 Input to 2 track recorders 1 3 Half normalled from STEREO OUTPUT A B C Breaking input Inserted patch cord will replace normalled connection GM EXT IN Grand Master External Input Stereo external inputs to the Grand Master summing bus The EXT button on the Grand Master must be engaged for the external source to be routed to the Grand Master summing bus GM INSERT SEND Grand Master I...

Page 55: ...Le gacy AX S AP I 55 NOTE The 2500C Stereo Bus Compressor must be patched to be used ...

Page 56: ...ly The default source for the Multitrack Buses is the Large Fader path To feed the Multitrack Buses from the Small Fader path press the 24 button in the Small Fader controls on the 968 Input Module Multitrack Signal Flow The diagram below shows the multitrack signal flow Only the first eight Bus Outputs are shown 624M Multitrack Bus Masters Each of the 624 assignments feeds its respective Multitra...

Page 57: ...UTPUT patch points in the System patch bay These patch points are not normalled to the MULTITRACK IN patch points Multitrack Patch Points BUS OUTPUT Multitrack Bus outputs Not normalled in the standard configuration DIRECT OUTPUT Channel Direct Output as assigned Fed post fader from the Large Fader by default Half normalled to the MULTITRACK INPUT Outputs split if patched MULTITRACK INPUT Connecti...

Page 58: ...x Buses are technically mono like the channel Aux Sends the Auxiliary Masters are organized as follows Six mono Aux Masters 1 6 Three stereo Aux Masters 7 8 9 10 and 11 12 Mono Aux Sends 1 6 are primarily used as effects sends during recording and mixing Stereo Aux Sends 7 8 9 10 and 11 12 are typically used as headphone cue sends during recording and stereo effects sends during mixing Auxiliary S...

Page 59: ...h for the Aux Bus outputs Illuminates when engaged T B Talkback Routes the Talk Back output to the Aux Master Talkback output will be added to the Aux Master output when the AUX Talkback button is pressed in the Master Section Illuminates when engaged AFL After Fader Listen Activates the AFL solo function for the Aux Master AFL is the only solo function available for the Aux Masters Each mono Aux ...

Page 60: ...ed from the AUX DEVICE OUTPUT Breaking input Inserted patch cord will replace normalled connection To create normalled connections to headphone cue systems and effects devices through external effects processors and back to the program buses for mixing the Legacy AXS provides AUX DEVICE INPUT and AUX DEVICE OUTPUT patch points to The AUX DEVICE INPUT CUE AMP patch points are half normalled from th...

Page 61: ...Le gacy AX S AP I 61 ...

Page 62: ...include four 4 2 track recorders stereo sources and two 2 5 1 surround external inputs 2 track 4 can accept a 10dBv unbalanced input The following features may be applied Speaker system selection Control room level controls ALL CUT DIM with level Left and Right monitor mute Mono summing Features include Control room stereo and surround monitoring Control room monitor systems o Two stereo ALT syste...

Page 63: ...sters 9 10 AUX 11 12 Output of Aux Masters 11 12 NOTE All internal monitor sources are stereo External monitor sources are selected by engaging the PLAY MNTR Playback Monitor button and the selector for the desired external source The following external sources may be selected as the Control Room monitor source 2T1 Output of 2 track recorder stereo source 1 2T2 Output of 2 track recorder stereo so...

Page 64: ...ngaged DIM Activates the Control Room monitor DIM function Attenuates the output to the active control room monitor system by the amount set with the DIM LEVEL Illuminates when engaged DIM LEVEL Sets the amount of attenuation applied when the DIM button is engaged dB to 0dB range LT RT CN SL SR LF 5 1 trim pots for setting the C R CAL the control room monitor level C R CAL Control Room Calibrate S...

Page 65: ...o monitors Illuminates when engaged STUDIO LEVEL Level control for the studio monitor outputs Sets the level for the main studio and alternate monitor system outputs Fed from the studio monitor source selectors Monitor System Patch Points Control Room Monitor Patch Points MAIN CR MNTR OUT Main Control Room Monitor Outputs Outputs to the MAIN control room monitor system Half normalled to MAIN CR MN...

Page 66: ... and alternate studio monitor amplifiers L R feed are the inputs for the main studio amps ALT L R are the inputs for the alternate studio loudspeakers L R points are half normalled from STUDIO OUT ALT L R points are half normalled from ALT STUDIO OUT Patching to these points will replace the feed to the studio monitor amps with the patch cord signal External Playback Source Patch Points 2T1 2T4 OU...

Page 67: ...COMP and pre EQ mono PFL 2 allows monitoring of the Direct Output PRE signal Non destructive Control room monitor source is replaced with the Solo Bus Solo level control Solo In Place SIP Destructive all other channels returns will mute when a SOLO button is engaged Monitored via the assigned Program Buses Post fader and pan pot stereo Solo In Place for the Large Fader and Small Fader may be assig...

Page 68: ...uminates when engaged PFL Pre Fader Listen Activates the Pre Fader Listen Solo mode of for all solos Fed post Insert and pre fader Illuminates when engaged PFL 2 Pre Fader Listen 2 Activates the Pre Fader 2 Listen Solo mode of for all solos Fed post preamp COMP and pre EQ Allows monitoring of the DIR PRE feed point Illuminates when engaged SOLO CLR Solo Clear Disengages all active channel SOLOs Mo...

Page 69: ... Only one SOLO button may be engaged at once The SOLO button will remain engaged when pressed and released The active SOLO button will be disengaged by pressing a it second time Pressing a second SOLO button will disengage the active SOLO and engage the second one Illuminates when engaged ...

Page 70: ...amp level control Sets initial Talkback Mic level Black knob located under Talkback Mic XLR REV GAIN Reverse talkback mic preamp level control Sets initial Reverse Talkback mic level EXT TBK GAIN External Talkback mic preamp level control Sets initial External Talkback mic level EXT TBK ON On off switch for the External Talkback source Routes the T B IN MAIN patch point signal to the Talkback outp...

Page 71: ... tones for calibration and trouble shooting The Oscillator output is routed to a pair of patch points when the Oscillator is ON The output can be routed to the Program and Multitrack Buses by engaging the BUS button Oscillator Controls ON On off switch for the Oscillator output The oscillator signal will be present at the OSC OUT patch points Activates the Control Room DIM function Illuminates whe...

Page 72: ... following signal paths Channel fader paths Small or Large Direct Out Multitrack Bus 1 24 Stereo Program Buses A B C Grand Master Program Bus Auxiliary Masters 7 8 9 10 11 12 Stereo Solo Bus The Meter Bridge has two sections Channel VU Meters Program VU Meters Channel VU Meters and Peak Indicators A VU meter is provided for each channel along with a LED Peak Indicator for each audio path Small Fad...

Page 73: ...aged Channel Peak Indicators Each fader path is equipped with a LED Peak Indictor The peak reference level is set on a global basis by the PEAK THRESHOLD selector in the Master Section PK Peak LED peak indicator for Small and Large Fader paths A red LED illuminates when the selected Peak Threshold is reached in the audio path PEAK THRESHOLD Sets the peak reference level for the channel Peak Indica...

Page 74: ...Peak A fixed peak hold circuit feeds the meter Illuminates when engaged Stereo Return Meters Each Stereo Return is equipped with a stereo 5 segment meter that indicates output level Auxiliary Master Meters Each Auxiliary Masters is equipped with a 5 segment meter that indicates output level Power Supply Voltage Indicators LED voltage indicators provide a quick visual indication of the status of th...

Page 75: ... within the patch bay and does not require patching Inserting a plug in the output does not break the connection to its normalled input Inserting a plug in the input or return patch point will break the connection from its normalled output The connected device input will receive the signal from the inserted plug In other words outputs split the signal Inputs break the normal Full normal Both patch...

Page 76: ...ader path SMALL INSERT RETURN Small Fader path MULTITRACK OUTPUT LINE INPUT Large Fader path LARGE INSERT SEND Large Fader path LARGE INSERT RETURN Large Fader path DIRECT OUTPUT MULTITRACK INPUT The following section outlines the channel patch points in the order they appear in the Channel patch bay Depending on console configuration there will be patch points for 32 48 64 or 80 channels in the b...

Page 77: ...a a multi pin connector on the back of the patch bay to allow normal interfacing to these points COMPRESSOR INPUT Lower 200 slot input Balanced low impedance line level input Breaking input Inserted patch cord will replace normalled connection SIDE CHAIN input Lower 200 slot detection path input Balanced low impedance line level input Full normal from COMPRESSOR INPUT Breaking input Inserted patch...

Page 78: ...rack Buses by patching the BUS OUTPUT patch points to the MULTITRACK INPUT patch points System Patch Bay The master and system patch points are located in the System patch bay The System patch bay contains patch points that support the following Stereo Returns Inputs inserts and Direct Outputs Stereo Program Masters Insert and output Stereo Grand Master External input insert and output 2500C Stere...

Page 79: ...INS button is engaged Pre fader Stereo Program Master Patch Points The following section outlines Stereo Program Master patch points STEREO INSERT SEND Insert Send from stereo Program Masters A B C Always active Pre fader STEREO INSERT RETURN Insert Return to stereo Program Masters A B C Patched signal is inserted in the Program Master signal flow when the INS button is engaged Pre fader STEREO OU...

Page 80: ...T OUTPUT Channel Direct Output as assigned Fed post fader from the Large Fader by default Half normalled to the MULTITRACK INPUT Outputs split if patched MULTITRACK INPUT Connection to multitrack recorder inputs Half normalled from DIRECT OUTPUT Breaking input Inserted patch cord will replace normalled connection MULTITRACK OUTPUT Multitrack recorder returns Half normal to LINE INPUT Outputs split...

Page 81: ...ed from the AUX DEVICE OUTPUT Breaking input Inserted patch cord will replace normalled connection To create normalled connections to headphone cue systems and effects devices through external effects processors and back to the program buses for mixing the Legacy AXS provides AUX DEVICE INPUT and AUX DEVICE OUTPUT patch points to The AUX DEVICE INPUT CUE AMP patch points are half normalled from th...

Page 82: ...Le gacy AX S AP I 82 ...

Page 83: ...nts and the inputs to the monitor system amplifiers Patching unattenuated signals into these patch points can result in very loud output from the Control Room monitor system Studio Loudspeaker Patch Points EXT STUDIO MNTR INPUT External Studio Monitor Input External input to the studio monitor source selector The EXT IN button in the STUDIO monitor controls must be engaged for the external source ...

Page 84: ... to the 6 track monitor selectors with the patch cord signal Talkback Patch Points T B IN Talkback Input MAIN and REV Inputs for external sources routed to Talkback MAIN Mic input an external mono source o The EXT TBK button must be engaged for the external source to be routed to the Talkback outputs when Talkback is activated REV Reverse Talkback Input for the reverse talkback mic Oscillator Patc...

Page 85: ...y sounds much less compressed The LINK feature is also unique to the 25OO First there is a variable link control ranging from IND independent to 50 through 100 The variable linking allows combining of the left and right control voltages over a range minimizing the interaction between channels while still linking them to retain the stereo image While engaged the LINK control has a selectable HI Pas...

Page 86: ...ove the threshold and does not do anything when the signal is not being compressed Usually this control should be in a vertical position One tip to get started We try to design all of our processing modules with the understanding that there is never enough time to read a manual and learn all of the features in the 10 seconds that is allowed during a setup If you simply place all of the knobs at th...

Page 87: ...Le gacy AX S AP I 87 Compressor Section ...

Page 88: ...Le gacy AX S AP I 88 Tone Section ...

Page 89: ...Le gacy AX S AP I 89 Link and Output Section ...

Page 90: ...Le gacy AX S AP I 90 Meter and Trim Section When in doubt start with all the controls straight up ...

Page 91: ...Le gacy AX S AP I 91 Setup Documents 2500C Setup Sheet ...

Page 92: ...Le gacy AX S AP I 92 205 Setup Sheet ...

Page 93: ...Le gacy AX S AP I 93 212 Setup Sheet ...

Page 94: ...Le gacy AX S AP I 94 215 Setup Sheet ...

Page 95: ...Le gacy AX S AP I 95 225 Setup Sheet ...

Page 96: ...Le gacy AX S AP I 96 235 Setup Sheet ...

Page 97: ...Le gacy AX S AP I 97 550A Setup Sheet ...

Page 98: ...Le gacy AX S AP I 98 550b Setup Sheet ...

Page 99: ...Le gacy AX S AP I 99 560 Setup Sheet ...

Page 100: ...Le gacy AX S AP I 100 624 Setup Sheet ...

Page 101: ...Le gacy AX S AP I 101 968 Setup Sheet ...

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Page 103: ...Le gacy AX S AP I 103 8301 Patuxent Range Road Jessup MD 20794 USA 301 776 7879 http www apiaudio com ...

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