Ashly GQX-1502 User Manual

GQX-3102
GQX-3101
GQX-1502
Graphic Equalizer
Operating Manual
ASHLY AUDIO INC.
847 Holt Road Webster, NY 14580-9103 Phone: (716) 872-0010
Toll-Free: (800) 828-6308 Fax: (716) 872-0739 Internet: http://www.ashly.com/
Gain(dB)
Range
Clip
EQ
HPF
6 - 15
In - Out
In - Out
285
200
100
50
25
12
(Hz)
Range
Clip
EQ
HPF
6 - 15
In - Out
In - Out
285
200
100
50
25
12
(Hz)
Channel 2
+6
+3
0
-3
-6
-9
-12
-15
-18
-21
VU
Output
Level
+6
+3
0
-3
-6
-9
-12
-15
-18
-21
VU
Power
GQX Series
Model 3102
Stereo Third Octave
Graphic Equalizer
+15 (+6)
+10
+5
0
-5
-10
-15 (-6)
Channel 1
+15 (+6)
+10
+5
0
-5
-10
-15 (-6)
+6
+4
+2
0
-3
-9
-
+6
+4
+2
0
-3
-9
-
20 25 31. 5 40 50 63 80 100 125 160 2 00 250 315 400 500 630 800 1K 1.25K 1. 6K 2K 2. 5K 3.15K 4K 5K 8K 10K 12. 5K 16K 2 0K6.3K
Off
On
Range
Output
Level
20 25 31. 5 40 50 63 80 100 125 160 200 250 315 400 500 630 800 1K 1.25K 1.6 K 2 K 2.5 K 3. 15K 4K 5K 8K 10K 12. 5K 16K 20K6.3K
Gain
+15(+6)
+10
+5
0
-5
-10
-15(-6)
(dB)
Clip
EQ
HPF
+6
+3
0
-3
-6
-9
-12
-15
-18
-21
VU
6 - 15
In - Out
In - Out
285
200
100
50
25
12
(Hz)
+6
+4
+2
0
-3
-9
-
GQX Series
Model 3101
Third Octave
Graphic Equalizer
Power
Channel 1 Channel 2
Power
-
Clip
HPF
(40Hz)
In - Out
Gain (dB)
Ch1 Ch2
Channel 1
EQ In - Out
+6
+4
+2
0
-3
-9
Clip
HPF
(40Hz)
In - Out
Channel 2
EQ In - Out
25 40 63 100 180 250 4 00 630 1K 1 .8K 2. 5K 4 K 6 . 3K 10K 1 8K 25 40 63 1 00 180 2 50 4 00 630 1K 1 .8K 2. 5K 4 K 6 .3K 10K 18K
GQX Series
Model 1502
Stereo 15 Band
Graphic Equalizer
+15
+10
+5
0
-5
-10
-15
+15
+10
+5
0
-5
-10
-15

Ashly GQX-1502 Specifications

General

Type	Graphic Equalizer
Channels	2
Frequency Bands	15 per channel
Input Connectors	XLR and 1/4" TRS
Output Connectors	XLR and 1/4" TRS
Dynamic Range	>115dB
Rack Units	2U
Frequency Range	20Hz to 20kHz
Input Impedance	20 kOhms balanced, 10 kOhms unbalanced
Total Harmonic Distortion	<0.005% (20Hz-20kHz)
THD	<0.005% (20Hz-20kHz)
Power Supply	100-240VAC, 50-60Hz
EQ Range	±12dB

Summary

Audio Connectors and Cables

Inputs

Details on connecting audio signals via different connector types and unbalanced signal handling.

Servo-Balanced Output

Explanation of the active balanced output circuit and its advantages over conventional outputs.

Grounding and AC Power

Grounding

Discusses terminal strip ground connections and jumper strap usage to avoid ground loops.

AC Power

Information on connecting the unit to AC power and electrical safety precautions.

Controls and Applications

Controls Overview

Details the function of gain, high-pass filter, EQ bypass, range switch, and level meters.

Typical Applications

Outlines common uses like tone control, feedback control, and room equalization.

Design Theory

Troubleshooting and Dimensions

Troubleshooting Tips

Provides solutions for common operational problems like no audio, EQ issues, clipping, and noise.

Dimensions

Provides the physical dimensions and mounting information for the equalizer.

Specifications and Warranty

Specifications

Detailed technical specifications for the GQX1502 and GQX3101/3102 models.

Warranty Information

Information regarding the product's warranty period and registration.

Schematics