Gemini P-700 Service Manual

Using the Ground Lift Switch
Depending on how your sound system is hooked
up, sometimes applying the ground will create a
quieter signal path. Sometimes lifting the ground
can eliminate ground loops and that annoying
hum to give you quieter and cleaner overall
sound.
1. With the power amp ON, listen to the system in
idle mode (no music or signal) with the ground
ON. The GROUND LIFT SWITCH
(3)
will be in
the left position.
2. Turn the power OFF before moving the
GROUND LIFT SWITCH
(3).
Now lift the ground
by moving the GROUND LIFT SWITCH to the
right. Turn the power back ON and listen to
determine which position makes the overall
sound quieter with the least amount of noise and
hum.
✰
CAUTION
: DO NOT DISCONNECT THE AC
GROUND ON THE POWER AMPLIFIER IN ANY
WAY. THIS CAN BE VERY HAZARDOUS!!
Should you experience any difficulties or
problems, you can first refer to the
TROUBLESHOOTING GUIDE located on the
following page. If you still cannot fix the problem,
please call
1 (732) 738-9003 for Gemini Customer
Service.
That’s it !
Okay, that just about covers everything! NOW
you’re ready to grab a couple of great CD’s or
records, crank it up and get the party started!
specifications
Output Power EIA: 1kHz @ 1% THD, Wrms
Both Channels Driven 8
Ω
: ………….………………………………70
Both Channels Driven 4
Ω
: ………….………………………………90
Dynamic Headroom, dB:
At 8
Ω
:…………………………………………………………………1.5
At 4
Ω
:…………………………………………………………………3.3
Frequency Response:………………………………..30 Hz – 50 kHz
Total Harmonic Distortion: …………………………..less than 0.1%,
typical 0.05% at 1 kHz
Signal to Noise ratio:………………90 dB below rated power @ 8
Ω
Damping factor: ……………………………..greater than 150 @ 8
Ω
Slew rate:……………………………………………………….10 V/
µ
S
Voltage gain, dB:……………………………………………………..27
Input Sensitivity (for rated power at 8
Ω
):…………….……….1Vrms
Input Impedance (unbalanced):...………………………………10 k
Ω
Power consumption (at rated power at 4
Ω
,
both channels driven): ………………………………..……..…400 W
AC Power Requirements: ……………..….110-120 V or 220-240 V
60 / 50 Hz.
Indicators:……………………………………1VU-meter per Channel
1 Power LED
Cooling: ……………Variable Speed Fan, Front-to-Rear Forced Air
Protection: ……………………………Short Circuit, Thermal Cut-off,
Sub/Ultrasonic Frequency Filters,
Turn-on Delay, Main Fuse,
Secondary DC Fuses
Connectors:
Inputs:……………………………………………………….RCA Jacks
Speaker Outputs:……………………………………….Binding Posts
Dimensions:……………………………………..19”W x 11”D x 3.5”H
(483 x 280 x 89 mm)
Weight :……………………………………………..12.9 lbs (5.85 kg)
✰
Specifications and design are subject to
change without notice for purpose of
improvement

Gemini P-700 Specifications

General

Brand	Gemini
Model	P-700
Category	Amplifier
Language	English