Audio Research GSi75 Entegre Amplifikatör

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POWER OUTPUT

75 watts per channel continuous from 20Hz to 20kHz. 1 kHz total harmonic distortion typically 1.5% at 75 watts, .05% at 1 watt. Approximate actual power available at “clipping” 80 watts (1kHz). (Note that actual power output is dependent upon both line voltage and “condition” i.e.: if power line has high distortion, maximum power will be affected adversely, although from a listening standpoint this is not very critical.)

 

POWER BANDWIDTH (-3dB points) 

12Hz to 70kHz.

 

FREQUENCY RESPONSE (-3dB points at 1 watt) 

1.0Hz to 70 kHz.

 

INPUT SENSITIVITY

0.55V RMS Single-ended for rated output. (32.5dB gain into 8 ohms.)

 

INPUT IMPEDANCE

52.5K ohms Single-ended.

 

INPUTS

SE1, SE2, SE3, Phono, S/PDIF digital (coax RCA and Toslink), USB

 

MAXIMUM INPUT

10V RMS (any input).

 

OUTPUT POLARITY

Non-Inverting (any input).

 

OUTPUT TAPS

8 ohms, 4 ohms.

 

OUTPUT REGULATION

Approximately 2dB 8 ohm load to open circuit (Damping factor approximately 4).

 

OVERALL NEGATIVE FEEDBACK

4dB.

 

SLEW RATE

10 volts/microsecond.

 

RISE TIME

4 microseconds.

 

HUM & NOISE

Less than 1.0 mV RMS -88dB below rated output (IHF weighted, Vol down).

 

CONTROLS

Rotary volume (103 steps), Rotary input selector, Power, Mute, Bias.

 

DIGITAL SAMPLE RATES

44.1kHz to 192kHz, SPDIF and USB 2.0 HS, DSD USB 2.0 HS

 

MASTER OSCILLATOR

22.579mHz ±20Hz for 44.1, 88.2 & 176.4kHz. 24.576mHz ±20Hz for 48, 96 & 192kHz sample rates.

 

INTRINSIC JITTER

<10ps

 

POWER SUPPLIES

Electronically regulated Low and High voltage supplies for input stages. Automatic 40 sec. warm-up/brown-out mute.

 

POWER SUPPLY ENERGY STORAGE

Approximately 350 joules.

 

POWER REQUIREMENTS100-125VAC 60Hz (200-250VAC 50Hz) 

400 watts at rated output, 600 watts maximum, 210 watts at “idle’: 1.0 watt power off.

 

TUBES REQUIRED

2-Matched pair KT150-Power Output; 2 -6H30 driver.

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