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Operating Manual - nX, nXe, and nXp 150W/75W Power Amplifiers

 

 

Link Group

 - Group to which all parameters are assigned, for simultaneous adjustment to multiple limiters 

 

 

Attenuation Bus

: All compressors assigned to the same attenuation bus will apply the largest amount of current gain 

reduction from any one of the assigned compressors. This is typically used used for tracking compression across stereo signals. 

  

 

Show Meter On Graph

 - Overlays the input/iutput level meters on the graphical display. 

 

 

Detector Type

 - This selects between peak or average detector operation. 

 

 

 

Peak Detector - 

Setting the detector type as peak means that only the peak level of a signal is used to trigger the 

compressor. Peak detect is typically used for limiter applications where any signal level above a certain point is undesireable. 

In peak detect mode, attack and release times are both adjustable.

 

 

 

Average Detector -

 

Setting the detector type to average means that a computed average signal level is used as the 

compressor trigger instead of peak levels. The averaging detector is more musical and natural sounding and typically used to "thicken" 

vocals. When using the average detector, attack and release controls are replaced with a single average rate control which adjust the 

speed at which compressor action occurs.

 

 

Autoleveler

 

 

The auto leveler is a dynamics processor used to automatically boost or 

cut a signal to a user-defined target level. The target level is the primary setting 

in the autoleveler, as it determines the constant level to which an input is boost 

or cut. The autoleveler can be used in situations such as speech re-enforcement, 

where an unknown source level needs to be maintained at a specific output level. 

For example, a podium microphone where different speakers will be presenting 

may have an auto-leveler applied to ensure that strong or soft speakers' voices 

are amplified appropriately. The controls for the auto leveler are split into two 

categories, basic and advanced. It is recommended you start with the basic 

controls, and if fine tuning is required, use the advanced controls. Warning: 

Depending on the settings, it is possible to apply up to 27dB of gain with the 

auto leveler.

 

Basic Parameters:

 

 

Target Level

 - The desired continuous output level of the signal. 

 

 

Action 

- Sets the ratio, hold time, and gain change rates (see below for 

definitions). These settings are general starting points for how the auto leveler 

should behave. Action can also be user defined under advanced controls, with 

three drag points available for a more visual adjustment.

Action

Ratio Hold Time Gain Increase Gain Decrease

Aggressive

10:1

0 Seconds 20 ms/dB

5 ms/dB

Normal 

4:1 

1 Second  50 ms/dB 

10 ms/dB 

Gentle 

2:1 

2 Seconds  100 ms/dB 

20 ms/dB 

 

 

Maximum Gain

 - This is the total amount of gain the auto leveler may apply before it stops affecting the signal. 

Maximum gain controls the threshold below target using the following formula:

Threshold Below Target = Max Gain 

÷

 ( ( 1 

÷

 ratio) - 1)

Summary of Contents for nX1502

Page 1: ...com All Trademarks referred to herein are the property of their respective owners 2016 Ashly Audio Inc All rights reserved worldwide Operating Manual NX 150W 75W Amplifiers nX Base Models nX1504 nX150...

Page 2: ...convenience receptacles and the point where they exit from the apparatus 12 Only use attachments accessories specified by the manufac turer 13 Use only with the cart stand tripod bracket or table spec...

Page 3: ...er to the following OSHA table for safe noise exposure limits and always take precautions to avoid excessive exposure to loud environments Sound level dBA slow response Maximum Dura tion Hours per day...

Page 4: ...7 2 Digital Network Audio Option 14 8 Ethernet Communications 14 8 1 IP Address 14 8 2 Firewalls 14 8 3 Wi Fi and LAN 14 8 4 Connecting Devices 14 NOTE Sections 9 13 p15 51 are NOT included in the pr...

Page 5: ...4 WR 5 Programmable Button Control 46 11 5 RD 8C Serial Data Fader Controller 46 11 6 neWR 5 Programmable Button Control 47 11 7 FR 8 FR 16 Networked Fader 47 11 8 INA 1 Inline RS 232 Adapter 47 11 9...

Page 6: ...ock connectors on all inputs and outputs Remote DC level control per channel Detachable AC mains line cord connector with automatic 120V 240V select Continuously variable cooling fan Amplifier protect...

Page 7: ...try connecting the shield only to the input pin and leave the input ground pin floating Avoid running low level signal wires in close proximity or parallel to long speaker cables AC power cables or po...

Page 8: ...t unconnected to ground as the added line capacitance will degrade the data signal Maximum data cable distance is 1 000 ft 305m 2 5 Aux Output Wiring nXe and nXp only The aux outputs are pseudo balanc...

Page 9: ...safe temperature 100 critical temperature will shut down the amplifier but allow the fan to still run Power Limit Protection To protect internal components from excessive output power conditions a pro...

Page 10: ...er by selecting disable mode from this switch or from software Sleep Mode Status Indicator The blue sleep LED will turn on during the mode selection process whenever sleep mode would be enabled upon r...

Page 11: ...urn the amplifier to normal operation Note that on all models a fixed amplifier turn on delay of three seconds is necessary to manage in rush current during power up or waking from sleep Sleep mode ha...

Page 12: ...ources can be shared This feature can be disabled in software section 9 4a 5 4 Channel Attenuators These control the input signal level to the amplifier and work in conjunction with the remote DC fade...

Page 13: ...dicated by the loss of a normally present heartbeat signal where the output continuously toggles between 0V and 5V at a 1Hz rate The normal heartbeat signal on each fault pin is interrupted whenever a...

Page 14: ...ress If the only option is to use an Ethernet switch instead of a router and communications problems remain which cannot be solved with the use of the link local standard each device can have a static...

Page 15: ...aNet Dante and AES3 are currently available AVB network audio will be available in the future Note The user can find and verify a live device on the network by right clicking over the unit s name or i...

Page 16: ...lly when the software is started A button of the same name and function is also found beneath the network device tree Network Network Config Adjusts the metering refresh rate server retries server tim...

Page 17: ...fiers with load analysis are NE two channel dsp and nXp Loudspeakers are specified with a nominal impedance rating 8 Ohms for example This is an average rating the actual imped ance across its frequen...

Page 18: ...e Software Tells the software version Help Contents and Index Online help for device function is found here along with the ability to search for topics Help Capture Network Configuration While most pe...

Page 19: ...ut or matrix mixer DSP functions on any channel When removed audio is passed directly through the stage that has been disabled 9 3 nX Preset Options Menu The preset options menu in the main device win...

Page 20: ...power switch blinks when in standby Power Switch Level Control Enabled Disabled This disables both the front panel power switch and the rear panel level controls Note When disabled all level controls...

Page 21: ...re protection Offset Link Group and Offset Faders A group of output channels can be linked together to attenuate the group as a whole without changing the relative levels of each channel If a channel...

Page 22: ...the Save Changes button To log in as admin in the log in section click the Admin checkbox enter the password if one is assigned and click the log in button Only the admin or anyone else with full acc...

Page 23: ...ck on it to bypass select for sub preset copy paste to another similar block or delete Total DSP usage is indicated as a percentage at the bottom of each input section in the DSP tab Increasing the nu...

Page 24: ...er the signal level drops below threshold Link Group Group to which all parameters are assigned for simultaneous adjustment to multiple limiters Show Meter On Graph Checkbox Overlays the input output...

Page 25: ...or cut a signal to a user defined target level The target level is the primary setting in the autoleveler as it determines the constant level to which an input is boost or cut The autoleveler can be u...

Page 26: ...o a specific channel e g a paging microphone Parameters Ducker Type Available types are high and low priority trigger filibuster and ducked program Trigger Threshold The signal level on a trigger chan...

Page 27: ...pen the gate and allow signal to pass through available as text box or as the top drag node on the graph Range The amount of attenuation applied to the unwanted signal when it remains below threshold...

Page 28: ...utomatically applied to the program audio by the ANC function Max Gain Sets the maximum gain that you allow the ANC to apply to the program audio A typical starting value is 10 dB Min Base Gain Sets t...

Page 29: ...noise com pensation 7 Continue to increase the noise source to the highest level you would expect Adjust the max gain to a level which limits the maximum gain that the ANC applies to the program audi...

Page 30: ...attenuation applied to the channel It is the sum of the gain of the level fader plus the gain applied by each of the enabled VCA groups RD 8C Remote Control Gain Remote gain allows the user to choose...

Page 31: ...s can be returned to nominal by pressing Ctrl Click on the fader knob A course EQ curve can be drawn quickly by left clicking and drag ging across the EQ frequency response display Multiple graphic eq...

Page 32: ...ilter in engaged Red filter out disengaged Filter Type Selected filter type The types are Parametric Symmetric boost cut allowing individual adjustment of center frequency level and bandwidth High She...

Page 33: ...edback area with just a slight boost is a quick way to find the exact frequency causing trouble Once the offensive frequency has been found cut the filter s level and the adjust the bandwidth as narro...

Page 34: ...der to allow the DSP power necessary for the FBS Filter Parameters Filter number Current active filter highlighted Filter In Out Green filter in engaged Red filter out disengaged Filter Lock Locks fil...

Page 35: ...er in the presence of a prolonged feedback tone with very little background noise The optimal setting of the sensitivity control depends on both the spectral content of the audio program how much the...

Page 36: ...the Low Pass Filter determines the upper frequency limit Be careful not to accidentally send low frequency signals to high frequency drivers Check the loudspeaker specifications to determine a safe op...

Page 37: ...of the pole zero characteristics of individual filters The 18dB oct Linkwitz Riley individually are 18dB oct Butterworth filters in that they have Butterworth pole zero characteristics and also satis...

Page 38: ...s Temperature Local temperature used to calculate the speed of sound though air and thus the distance corresponding to the delay time Link Group The link group to which the delay s parameters will be...

Page 39: ...the auto manual mixer This does not light the front panel mute LED Auto Button Selects the mixer input channel as an automixer channel when pressed in versus a manual mixer channel when pressed out Ma...

Page 40: ...tent final mix level without feedback as channel gains are automatically changing 3 A gain sharing automixer is easier to setup and adjust without the need for threshold attack release depth and numbe...

Page 41: ...ol settings Up to 100 events can be scheduled All event schedule data is stored in the amplifier A common use of the event scheduler would be for programmable energy ef ficiency Schedule the amp to go...

Page 42: ...he amp from standby mode open the STBY switch Remote standby is unavailable on nX models 2 Remote Control Standby Using software control surface nXe or nXp amplifiers can also be put into standby mode...

Page 43: ...ected to the preset ground pin the amplifier loads the preset or sub preset 1 4 as stored in amplifier memory 3 WR 5 AWR 5 appears in software as a captive device to its host amplifier The six buttons...

Page 44: ...associated with each fader which mutes those channels associated with that fader 2 neWR 5 The neWR 5 buttons can be programmed to mute and unmute single or multiple inputs or outputs 3 Event Scheduler...

Page 45: ...to any other external grounds 11 1 WR 1 Assembly 11 1a WR 1 Wiring 11 2 WR 1 5 Level Control and Preset Recall Switch Level Control all models preset recall on nXe and nXp models only The WR 1 5 has a...

Page 46: ...as earth ground WR 5 buttons are programmed from Proteane software after the WR 5 is wired to the amplifier and assigned a unique ID number in its WR 5 device window Controlled functions include pres...

Page 47: ...the closing of a switch wired to the lock out Euroblock renders all buttons inactive 11 7 FR 8 and FR 16 Networked Fader Controller nXp only The FR 8 and FR 16 are Ethernet based remote fader control...

Page 48: ...U signal and data is ready for processing This LED is disabled when network audio provides the master clock AES Status LED red Receiver Rx1 is Active but has an error AES signal will be muted See Erro...

Page 49: ...rs with CobraNet installed Each receiver can receive one CobraNet bundle selected by the user It is not necessary to use all receivers Depending on how audio is sent from the CobraNet transmitter a si...

Page 50: ...Configuration Description Description of the unit and its firmware Location User definable string typically indicating the location of the CobraNet device Contact User definable string typically indi...

Page 51: ...integrated into a Dante digital audio system by purchasing our OPTDante module as a factory installed option and controlled using Proteane software Dante Controller shown to right Configuration of Dan...

Page 52: ...d or excessive output power and treatments for DC power supply voltage irregularities 2 Has the amp shut down fan stopped with protect sleep and power switch LEDs all on If so this indicates a critica...

Page 53: ...g events Remote Control Troubleshooting WR 5 or RD 8C Doesn t Work Properly 1 Is the remote wired correctly to the amplifier data connector 2 If the WR 5 is the last one in series even if it is the on...

Page 54: ...wer 4 Ohm 181W 119W 112W 67W 1 8 max power 2 Ohm 230W 133W 142W 82W AC Mains Current Draw Typical input all channels driven 120VAC divide in half for 240V nXp models used Sleep mode 94mA 94mA 94mA 94m...

Page 55: ...eset Recall Contact Closure Pins 1 4 Euroblock 3 5mm close contact pin to Ground for preset 1 4 recall Data Connector for Ashly WR 5 RD 8C RS 232 adapter Euroblock 3 5mm Gnd 18V Data Out Data In AUX O...

Page 56: ...king Depth 0dB to 30dB Enable Ducking at Matrix Mixer Yes Metering Input Gate Threshold 80dBu to 20dBu Range off 100dB to 0dB Attack 0 2ms dB to 50ms dB Release 5ms dB to 1000ms dB Metering Key Signal...

Page 57: ...ent Parameters time ms distance ft m Temperature Adjust 22 F to 122 F 30 C to 50 C Maximum Time and Distance 48kHz Sample Rate 72 F Speaker Delay 0 21ms 24ft 7 3m Delay 0 682ms 771ft 235m Maximum Time...

Page 58: ...rranty gives you specific legal rights and you may also have other rights which vary from state to state EXCLUSIONS This warranty does not apply in the event of misuse neglect or as a result of unauth...

Page 59: ...59 Operating Manual nX nXe and nXp 150W 75W Power Amplifiers 17 nX nXe and nXp BLOCK DIAGRAMS...

Page 60: ...USA Phone 585 872 0010 Fax 585 872 0739 Toll Free 800 828 6308 www ashly com Printed in USA nXa 0616 2016 Ashly Audio Inc All rights reserved worldwide Ashly Audio is a division of Jam Industries Ltd...

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