Gemini GPA-2000, GPA-3000, GPA-1000 manual Professional Power Amplifiers, Features, Specifications

Professional Power Amplifiers

(All models have same back panel connections)

Gemini’s GPA Series Power Amplifiers provide you with excellent value for a wide range of intermediate power applications. With its bi-polar output stage technology and comprehensive protection circuitry to prevent overheating, the GPA Series gives you the high end features you want in a product that is well within your budget.

FEATURES

•Comprehensive Protection Circuitry with Protect LED Indicator

•¼” TRS & XLR Balanced/ Unbalanced Inputs

•3 Modes of Operation- Stereo, Parallel Mono, and Mono Bridge

•Decibel (dB) Level Meter with Clip LEDs

•Aluminum Extrusion Heat Sink Design with Directly Mounted Output Transistors for No-Fault Operation

•Subsonic and Ultrasonic Filters for Better Protection and More Efficient Operation

•Speakon & ¼” Speaker Outputs

•30 Hz to 50 kHz Frequency Response, <0.05% THD (0.02% Typical)

•High Output Power to Drive Professional Loudspeakers without

Clipping

•Ground Lift Switch

•Air Guide with Front-to-Rear Airflow and Cooling Fan for Thermal Stability and Reliability

Specifications

• Protection: Short Circuit, DC, Thermal Cut-off, Sub/Ultrasonic	• Dimensions: 19”W x 10.75”D x 3.5”H (483 x 273 x 89mm)
Frequency Filters, Turn-On Delay, Main Fuse, Secondary DC	• Input Impedance Unbalanced: 10 kOhm
Fuses	• Total Harmonic Distortion: > 0.05%, typical 0.02% at 1 kHz
• Indicators: 1 Power LED, 1 Protect LED (except GPA-1000),	• Output Power EIA: 1 kHz at 1% THD, WRMS
VU-Meter Per Channel	• Frequency Response: 30 Hz - 50 kHz • Slew Rate: 20 V/μS
• Cooling: Fan, Front-to-Rear Forced Air	• Damping Factor: Greater Than 200 at 8 Ohms
• Signal to Noise Ratio: 100 dB Below Rated Power at 8 Ohms	• Input Sensitivity (For Rated Power at 8 Ohms): 1 VRMS
• Input Impedance Balanced: 20 kOhm	• AC Power Requirements: 110-120V/ 60 Hz; 220-240V/ 50 Hz
• Balanced/ Unbalanced Inputs: XLR & ¼” Jack	• Speaker Outputs: Speakons & ¼” Jack

Amplifiers		GPA-1000	GPA-2000			GPA-3000		GPA-4000
Both Channels Driven at 8 Ohms		70W RMS / 140W PEAK	85W RMS / 170W PEAK		140W RMS / 280W PEAK			200W RMS / 400W PEAK
Both Channels Driven at 4 Ohms		90W RMS / 180W PEAK	110W RMS / 220W PEAK		200W RMS / 400W PEAK			300W RMS / 600W PEAK
Mono Bridge at 8 Ohms		180W RMS / 360W PEAK	220W RMS / 440W PEAK		400W RMS / 800W PEAK			600W RMS / 1200W PEAK
Momentary Peak Output		1000 W	2000 W			3000 W		4000 W
Dynamic Headroom at 8 Ohms		1.3 dB	1.4 dB			1.5 dB		1.6 dB
Dynamic Headroom at 4 Ohms		1.8 dB	1.9 dB			2.0 dB		2.2 dB
Voltage Gain		27 dB	28 dB			30 dB		32 dB
Power Consumption, rated at 4 Ohms,		400 W	500 W			800 W		1200 W
both channels driven
Weight		13.6 lbs (6.2 kgs)	16.5 lbs (7.5 kgs)			18.3 lbs (8.3 kgs)		20.2 lbs (9.2 kgs)
		*Specifications subject to change without notification for improvement
GCI Technologies Corp.	1 Mayfield Avenue, Edison, NJ, USA 08837			T: +1 732 346 0061			Email: sales@gci-technologies.com
Gemini Sound Products, S.A.	Caspe 172 , 1A, 08013 Barcelona, Spain			T: +34		93 436 37 00	Email: info.spain@gci-technologies.com
GCI Technologies Corp. GmBH	Lerchenstrasse 14, Haus 3 – 1. Stock, 80995 München, Munich, Germany			T: +49		(0) 89 319 019 80 Email: info.germany@gci-technologies.com
GCI Technologies Corp., Ltd.	Unit 44 Brambles Enterprise Center, Waterberry Drive, Waterlooville, PO7 7TH, UK			T: +44		(0) 87 087 00880 Email: sales.uk@gci-technologies.com
GCI Technologies Corp., S.A.R.L.	Parc de Levenement1, Alleed’Effiat, 91160 Longjumeau, France			T: +33		(0) 1 69 79 97 70 Email: info.france@gci-technologies.com

© GCI Technologies Corp. 2007 All Rights Reserved. Rev. 09.07