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GPA-4000
Professional Power Amplifier
Dimensions: 19 x 13 x 5.5” (483 x 330 x 140 mm)
Weight: 24 lbs (10.89 kg)
GPA-3000
Professional Power Amplifier
Dimensions: 19 x 13 x 5.5” (483 x 330 x 140 mm)
Weight: 22 lbs (9.98 kg)
GPA-2000
Professional Power Amplifier
Dimensions: 19 x 13 x 5.5” (483 x 330 x 140 mm)
Weight: 20 lbs (9.07 kg)
GPA-1000
Professional Power Amplifier
Dimensions: 19 x 13 x 5.5” (483 x 330 x 140 mm)
Weight: 18 lbs (8.16 kg)
Each GPA Series power amplifier features 1/4” TRS Balanced/Unbalanced inputs and XLR Inputs as
well as 1/4” & Speakon™ outputs. Each amplifier comes equipped with a high-airflow cooling fan
that guides hot air from the front of the unit to the back which prevents overheating during use.
Additional GPA Series Specifications
Dimensions 19 x 10.75 x 3.5” (483 x 273 x 89 mm)
Total Harmonic Distortion less than 0.05%, typical 0.02% at 1 kHz
Signal to Noise Ratio 100 dB below rated power @ 8 Ohms
Damping Factor greater than 200 @ 8 Ohms
Slew Rate 20 V/µS
Input Sensitivity (for rated power at 8 Ohm) 1 VRMS
Indicators 1 Power LED, 1 Protect LED (except GPA-1000), VU-meter per Channel
Cooling Fan, Front-to-Rear Forced Air
Protection Short Circuit, DC, Thermal Cut-off, Sub/Ultrasonic Frequency Filters,
Turn-on Delay, Main Fuse, Secondary DC Fuses
Measured using EIA standards: 1kHz @ 1% THD
8 Ohms
4 Ohms
8 Ohms
(Mono Bridge)
Momentary Peak Output
Dynamic Headroom (8 Ohms)
GPA-4000 GPA-3000 GPA-2000 GPA-1000
200W RMS / 400W Peak 140W RMS / 280W Peak 85W RMS / 170W Peak 70W RMS / 140W Peak
300W RMS / 600W Peak 200W RMS / 400W Peak 110W RMS / 220W Peak 90W RMS / 180W Peak
600W RMS / 1200W Peak 400W RMS / 800W Peak 220W RMS / 440W Peak 180W RMS / 360W Peak
4000 W 3000 W 2000 W 1000 W
1.6 dB 1.5 dB 1.4 dB 1.3 dB
2.2 dB 2.0 dB 1.9 dB 1.8 dB
32 dB 30 dB 28 dB 27 dB
1200 W 800 W 500 W 400 W
Dynamic Headroom
(4 Ohms)
Voltage Gain
Power Consumption
(Both Channels drive at 4 Ohms)
• Every GPA Series amplifier features stereo, parallel mono and bridge modes