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Section Eleven:  GRAPHI-Q Engineering Specifications

DIGITAL PROCESSING

24 bit A/D and D/A

32-bit DSP

GRAPHIC EQUALIZER

31 digital filters on 1/3-octave ISO center frequencies, width adjust-
able¨ from 0.5 to 1.0 octave in .01 octave increments; ±12 or 6 dB
boost and cut

±6 or 12 dB boost and cut range

Independent display and control of A & B channels

FBX/PARAMETRIC  FILTERS

Twelve independent digital filters per channel, controlled automati-
cally or parametrically from 20 Hz to 20 KHz, each switchable (GRQ
Remote) between FBX fixed filters, FBX dynamic filters, and para-
metric filters¹

Filter depth: user-controllable in 1 dB steps from +12 dB to -84 dB
(parametric mode); 3 dB steps from 0 dB to -80 dB (FBX mode), max.
FBX depth adjustable from -6 to -80 dB

Filter width: user-controllable from 9.99 to .01 octave (parametric),
1.0 to .01 octave (FBX*)

Low Cut Filter, user-controllable between 20 Hz and 1 KHz; 12 dB/
octave roll-off

High Cut Filter, user-controllable between 3 KHz and 20 KHz;  12dB/
octave roll-off

Resolution: 1 Hz from 20 Hz to 20 KHz, FBX & parametric mode

Time required to find and eliminate feedback: typically 0.3 seconds
@ 1 KHz

Total number of combined filters active per channel: user-select-
able, 0-12; plus low and high cut filters

DIGITAL  COMPRESSOR/LIMITER

Threshold:  +32 dBV to -30 dBV peak in 0.5 dB steps

Ratio:  1:1 through infinity

Knee:  variable soft/hard¨

Attack:  1 to 99 msec in 1 msec steps¹

Release:  .05 to 5 sec in .05 sec steps¹

Peak limit threshold:  +32 dBV to -30 dBV peak in 0.5 dB steps¹

DIGITAL  DELAY

1.38 to 999.96 msec in 20 µsec steps

Programmable in milliseconds, feet or meters

PASSWORD CONFIGURATION

4 levels¹

CONTROLS

GRQ-3102, 3101: Front panel, GRQ Remote (RS 232), Remote
switching

GRQ-3102S, 3101S: GRQ Remote (RS 232), Remote switching

SAVE & RECALL CONFIGURATIONS¹

68 user defined

1 factory default

1 most recent configuration (power down save)

1 front panel

INPUT/OUTPUT**

Input impedance: Balanced > 10K Ohms, PIN 2 high

Output impedance: Balanced 50 Ohms nominal, PIN 2 high

Input/Output maximum signal levels: Ba29 dBV peak

Maximum output load: 600 Ohms balanced

Bypass: true power-off bypass

I/O connectors:  XLR-3, 1/4" TRS

GRQ-3102 and 3102S:  Dual channel, one input, one output per
channel

GRQ-3101, and 3101S: Single channel, one input, two outputs.
Functions on each output selectable via GRQ-Remote

PERFORMANCE²

Frequency response: 20 Hz to 20 KHz, ±0.3 dB dB @ +22 dBV

THD:  <0.01% at 1.0 KHz at +22 dBV with 30KHz bandwidth

SNR***:  >105 dB (with ClipGuard

TM

)

Dynamic Range:  >110 dB (with ClipGuard

TM

)

Headroom: +22 dB @ 4 dBV nominal input (balanced)

UPGRADES

Operating system firmware stored in FLASH RAM.  All future
upgrades for firmware and software downloadable from Sabine
website using GRQ Remote.

POWER

50/60 Hz available in 100 V, 120 V, 230 V; 20 W

DIMENSIONS

2-U rack mount 19 x 3.5 x 9 in. (48.3 x 9 x 22.9 cm); 9 lb. (3.9 Kg)

1-U rack mount  19 x 1.75 x 9.5 in. (48.3 x 4.5 x 22.9 cm); 8 lb. (3.6
Kg)

* Below approximately 200 Hz the feedback filters become slightly
wider to increase the feedback and rumble capture speed at these
low frequencies.

** Inputs may be balanced or unbalanced.  For maximum output
capabilities, outputs must be balanced (XLR or TRS).  If either side
of an output is grounded, the peak and output dynamic range will
be reduced by 6 dB.

*** Signal-to-noise ratio is the ratio of the maximum undistorted
signal by specification (26 dBV RMS sinewave) to the noise floor

¹ Available using GRQ Remote Software only

Tests performed using an Audio Precision System One model

322 or equal

All GRAPHI-Qs conform to all Year 2000 (Y2K) standards.

(SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE.)

Section Eleven:  Engineering Specs

Содержание GRAPHI-Q

Страница 1: ...7 This manual written for Sabine GRAPHI Qs with GRQFirmwareVersion3 10 GRQ Remote Software Version 3 10 Visit Sabine s website for the latest information and FREE software firmwareandoperatingguideup...

Страница 2: ...that the equipment specified above conforms to the above Directive and Standard Place Alachua Florida USA Signature Date February 20 2000 Full Name Doran Oster Sabine President Declaration of Conform...

Страница 3: ...ease and knee adjustable with remote Digital Delay with up to 1 second delay adjustable in 20 microsecond increments Bypass dedicated switches for FBX EQ and Delay with built in LED indicators LED Seg...

Страница 4: ...Feature Front Panel Models only 15 6 2 HIGH CUT LOW CUT FILTERS 15 6 2 1 Front Panel Control 15 6 3 FEEDBACK CONTROL AND PARAMETRIC EQUALIZATION 15 6 3 1 Glossary of Terms 15 6 3 2 Front Panel Control...

Страница 5: ...ord 38 8 8 4 Removing Password Protection 38 8 8 5 Passwords For Multiple Units 38 8 9 NAVIGATINGWITH MULTIPLE UNITS 39 8 10 UPGRADING GRAPHI Q FIRMWARE AND SOFTWARE 39 8 10 1 How to Upgrade Your Firm...

Страница 6: ...expanded range of adjustment and ease of storage and recall that are much more difficult to achieve with analog technology And with the Sabine FBX algorithm one of the most serious problems of audio...

Страница 7: ...sed on mathematical formulas and will remain constant over time and changing temperatures 4 LESSNOISE Asanalogpartswear getdirty orcorrode readjustingthemcanintroducenoiseinto thesignalpath Allaudioen...

Страница 8: ...Power connector fuse GRQ 3101S FRONT PANEL Additional RS 232 Serial In Power On LED GRQ 3101S BACK PANEL GRQ 3101 FRONT PANEL FBX Section 12 filter indicators Reset Width Set Lock Fixed Filter Contro...

Страница 9: ...Section Three Front and Back Panel Views GRQ 3102 FRONT PANEL GRQ 3102 BACK PANEL GRQ 3102S BACK PANEL GRQ 3102S FRONT PANEL...

Страница 10: ...Section Four Block Diagram Internal Signal Path Section Four Block Diagram Internal Signal Path...

Страница 11: ...ill look like this This configuration represents the simplest installation using a single channel one input using only one output GRAPHI Q You may also follow a similar connection diagram for a two ch...

Страница 12: ...power of the GRAPHI Q to one or two single channels on your mixer or to a subgroup of inputs for example all the drums in your mix The patching will look like this 5 5 SINGLE CHANNEL GRAPHI Q ONE INPU...

Страница 13: ...RAPHI Q in an auxiliary or effects loop such as would be used to add reverb to different channels in your mixer Effects loops are designed to split signal paths and then mix wet processedsignalswithth...

Страница 14: ...itersettings can be applied to one or both outputs using software control but the GRQ 3101 will not permit unique output settings for any processing except delay and for the output levels 6 1 1 Front...

Страница 15: ...eremotesoftwaretocontrol the EQ faders the resolution is always dB regardless of range 6 2 HIGH CUT LOW CUT FILTERS 6 2 1 Front Panel Control These controls are located immediately to the right of the...

Страница 16: ...encies may change due to microphone repositioning and represent the second layer of feedback protection Note that both Fixed and Dynamic filters can be set while music is playing as one of the disting...

Страница 17: ...ynamic filters However you may follow the instructions in STEP 5 below to reconfigure the setup to be any combination of Fixed and Dynamic filters 6 3 2 2 Eliminating Feedback with the GRAPHI Q FBX Fi...

Страница 18: ...to mix filter widths between one tenth and one fifth octaves You may set all filters to one width or some filters to tenth octave and some to fifth octave Width selection is controlled by the button...

Страница 19: ...hout reducing the volume of the feedback before it is filtered out You ll know if TURBO is on by the LED indicator on the GRAPHI Q front panel Whether or not TURBO MODE is used the end result of setti...

Страница 20: ...burst of no longer filtered feedback It ain t pretty when this happens so proceed cautiously 6 7 CHANGING FRONT PANEL DEFAULT SETTINGS ADJUSTABLE ONLY BY SOFTWARE GRAPHI QmodelsGRQ 3101andGRQ 3102all...

Страница 21: ...are and software necessary to run the units via remotecontrolfromaWindows equippedcomputer YourunitshouldincludeoneCDROMthatincludes theGRQ RemoteSoftwareandtheSabineUpgradeWizardforfutureupgradesofyo...

Страница 22: ...ensive Also commands from the computer controller may sometimes be executed faster than the update of thescreenthatdisplaystheparameters inotherwords thereportoftheexecutionofthecommandmay lag behind...

Страница 23: ...in cannot communicate directly to another only within its own chain Double click your GRQ icon and you are presented with the Welcome Screen You can connect to your GRAPHI Qs or run the software off l...

Страница 24: ...h and Low Cut Filter Controls on the Remote Control are located just below the slider controls Changing high and low cut filters can be accomplished by two methods 1 Click and drag on the left horizon...

Страница 25: ...offers powerful options for setting and controlling FBX filters that are not available using front panel controls In addition the software allows programming of parametric EQ filters which is not pos...

Страница 26: ...in the bar for quick editing Level Indicators Input output compressor gain reduction and limiter indicator for both channels High Cut Slider Low Cut Slider Click to toggle EQ boost cut range between 6...

Страница 27: ...th Turbo Mode operation click Turbo Help The following screen will appear USINGAUTOTURBO BeforeselectingAUTOmode makesureallyourmicrophonesarepositioned and turneduptotheapproximatecorrectgainsettingf...

Страница 28: ...APERFORMANCE Itisasetuptoolonly Ifyouplayaudiothrough the GRAPHI Q while it is in Turbo Mode Manual or Auto the audio may sound distorted and FBX filters will set inappropriately 2 TURBO WORKS BEST IN...

Страница 29: ...esets with large differences in delay settings onlywhenaudioisNOTplaying through your system Pitch shifting may temporarily occur as delay is adjusted You may bypass the delay section with out pitch c...

Страница 30: ...the value of a parameter for an unlinked cell will not affect any other cell default condition ABSOLUTELINK ValuesofparametersforABSOLUTELYLINKEDcellswillbecopiedtotheidentical setting The first cell...

Страница 31: ...eSection5 5 Thisisaveryusefulfeaturethatenablesasingle inputunittoemulatetwo channeloperation withadditionalcontroloverthetwooutputsaccessiblewiththe Sabine GRQ Remote Software Two parameters output l...

Страница 32: ...ess when a peak level exceeds a certain threshold and the sound engineer intentionally designs his audio program to have more soundintheleftchannel thatchannel ssoundwillbecompressedmorereadilythanthe...

Страница 33: ...ilter 6 for example and be set to Parametric in order to be reset via linking Resettingparametervaluesforlinkedunits orloadingpresetstolinkedunits cancreatesomecomplicated scenarios When in doubt remo...

Страница 34: ...eset set tings for individual channels For single channelGRAPHI Qs youmayresetOUT PUT LEVEL and DIGITAL DELAY set tingsforthetwodifferentoutputspossible with these units all other parameter set tingsa...

Страница 35: ...ONT PANEL will apply only to GRAPHI Q models GRQ 3101 and 3102 and not to the S blank front panel slave models In this setting the front panelcontrolsoftheGRAPHI Qwillprovidetheonlymeansofcontrollings...

Страница 36: ...the lower right of the main Remote Control screen at all times 8 SeeSection6 7forinformationaboutchangingdefaultvaluesforfrontpaneloperationforparameters that are not accessible without Remote Control...

Страница 37: ...cluding downstream amplifier connections andthatyourGRAPHI Qsareplacedinthesameequipmentrackandderivepowerfromthesame circuit 8 7 ASSIGNING NAMES TO THE GRAPHI QS Youcanassignany8 characternametoallof...

Страница 38: ...word will follow the GRAPHI Q 8 8 3 Gaining Access With Your Password Oncepasswordshavebeenentered oneofthethreecodesmustbegiventoallowaccesstothesecurity levelallowed Ifnomatchingpasswordisprovided t...

Страница 39: ...ollowing power up of your unit 2 For all models the current firmware version will be stated in the About screen of the Remote Control software unit connected and powered up NOTE If you have a slave un...

Страница 40: ...especially DOS programs 1 OnthefirstUpgradeWizardscreen selectthesecondoption UpgradeGRAPHI Qfirmwareandclick Next 2 The screen will tell you that you must be connected to at single GRAPHI Q Make sure...

Страница 41: ...you re working in the more the bass problem you ll have You might consider building a bass trap to selectively absorb bass frequencies Many of the current trade publications offer advice on easy inexp...

Страница 42: ...Q slider Is the industry standard choice offilterwidthagoodorabaddesign Itdependsentirelyontheintendeduseoftheequalizerinquestion There are at least two basic design intentions of equalizers both of w...

Страница 43: ...stic process There are many well documentedmethodsofoptimizingyoursystem andusefulmeasurementtoolsandtechniques but ultimately the skill of the operator is the determining factor of sound quality So y...

Страница 44: ...ency ranges attenuated or boosted by your system or acoustics that are not first compensated for by graphic EQ your FBX filters may cluster together using several narrow filters to address a problem b...

Страница 45: ...to be quite expensive Fortunately simpler tools are sufficient for most applications Inthe1930s engineerssynchronizedthelowandhighfrequencyspeakersinmovietheatersbyfeeding a sharp click through the s...

Страница 46: ...larger wave In other places the crests are out of phase so the crest of one wave source is canceled by the trough of the other Ripple tank experiments show the interference patterns are strongest whe...

Страница 47: ...plitude by 6 dB while the out of phase frequencies cancel completely to 4 dB Combfilterscausealotofproblems Thefrequenciesthatarereinforcedarepronetoexcitefeedback while the out of phase cancellations...

Страница 48: ...was played through both speakers simultaneously the listenerperceivedtheacousticimage thedirectionfromwhichthesoundseemedtobecoming centered between the speakers WhenHaasdelayedthesignalgoingtooneoft...

Страница 49: ...ee Comb Filter Distortion p 45 You can use the GRAPHI Q to preciselysynchronizethespeakersalongthisaxistoeliminatethemostseverecombfilters Combfilters off the equal level axis are much less of a probl...

Страница 50: ...in the mixer s channel insert point and adding a 25 msec delay Certainly taking advantage of the Precedence Effect is not as obvious to the audience as eliminating feedback but it is nice to know you...

Страница 51: ...ncrease its perceived loudness 3 Mix consistency For expressive instruments or vocals which may have a large dynamic range compression can help maintain consistent mix levels So a vocal that varies fr...

Страница 52: ...in makeup boosted slightly soft knee BASS GUITAR Bass players use a variety of tech niques often in the same song that can benefit from compression Compressingbassevensoutpeaksand keeps the bass level...

Страница 53: ...REQUENCIES CLUSTERED TOGETHER TURBO SETUP DOESN T WORK CORRECTLY DISTORTED AUDIO Check GRAPHI Q compressor settings See Section 9 5 Check filter availability Make sure unit is not in BYPASS See Sectio...

Страница 54: ...the extreme left right pins of the back panel contact connector Parametric filter linking obeys a set of rules that will make it difficult for you to accidentally defeat an FBX filter already in place...

Страница 55: ...3101S GRQ Remote RS 232 Remote switching SAVE RECALL CONFIGURATIONS 68 user defined 1 factory default 1 most recent configuration power down save 1 front panel INPUT OUTPUT Input impedance Balanced 10...

Страница 56: ...apparatusdoesnotexceedtheClassBlimitsforradionoise emissionsfromdigitalapparatussetoutintheRadioInterferenceRegulationsof theCanadianDepartmentofCommunications Lepresentappareilnumeriquen emetpasdebru...

Страница 57: ...ly related to the cause of action Such purchase price will be that in effect for the specific product when the cause of action arose This limitation of liability will not apply to claims for personal...

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