SABINE GRAPHI-Q2 User Manual

1
B1-GRQ-2-OpGuide-v1-050125.pmd
GRQ3121 (1U, single channel, one input, two outputs)
GRQ3122 (2U, dual channel, one input & output per channel)
GRQ3121-S (1U, blank front panel slave, single channel, one input, two outputs)
GRQ3122-S (1U, blank front panel slave, dual channel, one input & output per channel)
GRQ2 Remote for Windows
TM
Software included with every unit; runs up to 8 Graphi-Q2s per COM port
(maximum of 2 COM ports)
• All front panel controls are analog-style; signal path is digital
• “Tweek-n-Peek” feature: Front panel adjustments of all parameters are shown in LED display screen
• 24-bit A/D and D/A conversion, 32-bit processing
• 20 to 20 KHz Frequency Response
• +18 dBV Maximum Signal Input & Output
• Floating Point SHARC Processor
• >110 dB dynamic range
Each channel provides (now with fully independent processing on 1x2 units):
• 31-band graphic EQ, with ± 6 or 12 dB range (selectable)
• Crossover: Bessel, Butterworth, and Linkwitz Reily filters; slopes to 48 dB/octave (Software only)
• High Cut Filter (3KHz to 20KHz) and Low Cut Filter (20 Hz to 1KHz)
• FBX Feedback Exterminator: up to 12 Filters, with Setup Mode (Auto Setup Mode via remote control)
• Parametric Filters: up to 12 filters, numeric or graphic control (Software only)
• Compressor/Limiter, with controls for ratio, threshold, and gain (attack, release, 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 Segmented Indicators: FBX Filters, Level, Gain Reduction
• LED Point Indicators: FBX Setup, Remote, EQ Range
• LED Character Display: Delay setting, EQ fader boost/cut, High Cut Filter setting Low Cut Filter setting,
Compressor Ratio, Threshold, Gain, and Staus Messages.
Back Panel:
• XLR & 1/4" TRS inputs & outputs
• RS-232 Serial input & output (additional serial input on the slave front panels)
• Remote switching (8-position contact closure switch; allows switch selection of all 20 stored Graphi-
Q2 presets)
Graphi-Q2 Remote Software Features:
All front panel controls, plus more, including:
• FBX filter depth & width adjustments; switchable to parametric filters (depth, width & frequency
adjustments)
• Graphic EQ filter width adjustments
• Password protection
• View & edit frequency response curves
• 20 user-defined stored presets
• Control and link up to 8 Graphi-Q2s (16 channels of audio) per COM port (1 or 2 ports can be used)
• Future-proof FREE Flash RAM upgrade capability: upgrade your firmware and software from the Sabine
website (www.Sabine.com)!
Summary of Features
S
UMMARY OF FEATURES
Operating Guide Version 1: for Sabine Graphi-Q2s with:
• GRQ2 Firmware Version 2.20
• GRQ2 Remote Software Version 5.0

SABINE GRAPHI-Q2 Specifications

General

Brand	SABINE
Model	GRAPHI-Q2
Category	Stereo Equalizer
Language	English

Summary

SECTION THREE: FRONT AND BACK PANEL VIEWS

SECTION FOUR: BLOCK DIAGRAM/INTERNAL SIGNAL PATH

Section Five: Installation

Section Six: Using Graphi-Q2 Front Panel Controls

6.1. FRONT PANEL CALIBRATION

Calibrating front panel controls after firmware upgrades to ensure accuracy.

6.2. GRAPHIC EQUALIZER CONTROLS

Details on adjusting graphic EQ sliders, including boost/cut range and channel linking.

6.2.2. Linking Channel Controls (Two-channel Units)

6.4. FEEDBACK CONTROL AND PARAMETRIC EQUALIZATION

Introduces FBX Feedback Exterminator and parametric EQ, defining key terms.

6.4.2. Front Panel Control of FBX filters

Explains front panel control of FBX filters, including LED indicators and feedback elimination steps.

6.4.2.2. Eliminating Feedback with the Graphi-Q2 FBX Filters

Provides step-by-step instructions for using FBX filters to eliminate feedback effectively.

6.5. COMPRESSOR/LIMITER CONTROLS

Details the front panel controls for the compressor and limiter functions.

6.6. DIGITAL DELAY CONTROLS

Section Seven: GRQ2 Remote Software Installation

7.1. SYSTEM REQUIREMENTS AND RECOMMENDATIONS

Lists the necessary PC specifications and recommendations for installing the GRQ2 Remote software.

7.2. CONNECTIONS

7.3. INSTALLING THE SOFTWARE

Provides step-by-step instructions for installing the GRQ-Remote Control Software from the CD-ROM.

Section Eight: Using GRQ2 Remote Software

8.1. WELCOME SCREEN/NETWORK CHAIN SCREEN

Introduces the initial screens of the GRQ2 Remote Software and connecting to Graphi-Q units.

8.2. GRQ2 MAIN SCREEN

Describes the main interface of the GRQ2 Remote Software for accessing vital functions.

8.2.3. Response Curve Display

8.2.5. FBX Feedback Exterminator & Parametric Filters

Covers advanced FBX and parametric filter controls available through the remote software.

8.2.5.1. Setting FBX Filters with Graphi-Q Remote Software

Details the Auto Setup and Manual Setup modes for configuring FBX filters using the software.

8.2.6. Crossover Adjustments

Explains how to adjust crossover settings, including slopes, filter types, and gain for outputs.

8.2.7. Compressor/Limiter Adjustments

Details how to adjust compressor and limiter parameters using the remote software interface.

8.2.8. Digital Delay Adjustments

8.3. LINKING PARAMETERS AND CONTROL WITH THE GRQ-REMOTE SOFT- WARE

Covers the powerful feature of linking multiple units and channels for synchronized control.

8.4. RESET PARAMETERS

8.6. STORING AND RECALLING GRQ2 PRESETS

Details methods for storing and recalling system configurations and settings as presets.

8.6.2. Contact Closure Switch Recall

8.8. PASSWORD PROTECTION WITH GRQ2 REMOTE SOFTWARE

Details the password protection levels and how to set or change passwords for software access.

8.10. UPGRADING GRAPHI-Q2 FIRMWARE & SOFTWARE

Explains how to upgrade the unit's firmware and the remote software using the Sabine Upgrade Wizard.

Section Nine: Suggestions for Optimal Use of the Graphi-Q

9.2. WIDE & NARROW FILTERS: GRAPHIC, PARAMETRIC, AND FBX

9.3. RECOMMENDED EQ USAGE

Offers recommendations for using graphic EQ, including setting range, boost/cut balance, and reference microphone use.

9.4. USING DIGITAL DELAY

Explains the importance and applications of digital delay in sound systems, including synchronization and comb filter distortion.

9.4.2. Comb Filter Distortion

9.4.3. The Precedence Effect: Aligning the Acoustic Image

9.4.4. Three Applications for Digital Delays

9.4.4.3. Application III: Synchronizing the signals of a far-throw and short-throw loudspeaker

9.5. USING THE COMPRESSOR/LIMITER

Explains the function of compressors and limiters in controlling dynamic range and potential problems.

9.5.2. Compressor/Limiter Adjustments

Details the adjustments for compressor and limiter parameters like Output, Threshold, Ratio, and Knee.

9.5.3. Suggested Compressor Settings

Section Ten: Troubleshooting Tips

LITTLE OR NO AUDIO COMING FROM GRAPH-Q OUTPUT

AUDIO "PUMPS" or BREATHES

SPEAKER STACKS PLAY AUDIO OUT OF SYNC

FEEDBACK NOT BEING REMOVED

GRAPHI-Q APPEARS TO BE CATCHING FEEDBACK, BUT FEEDBACK STILL PRESENT

GRAPHI-Q2 REMOTE CONTROL SOFTWARE CANNOT FIND GRAPHI-Q UNIT(S)

Offers troubleshooting steps for connection issues, including software version, cable checks, and COM port refreshing.

Section Eleven: Graphi-Q2 Engineering Specifications

Section Twelve: Cautions & Warranty