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Audio Research GSi75 Integrated Amplifier

code: AUDIORESGS175
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Item out of Stock  |  Usually dispatched within 24 hours
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This item cannot be ordered online. If you are interested please click on the Ask a Question button below.

A preamplifier, amplifier, phono stage, and digital to analogue converter all in one chassis, the GSi75 combines with your favorite speaker to deliver a singular and simple solution to control your listening system. Unlike other integrated designs that make performance - sacrificing compromises to fulfill a price point or form factor, the GSi75 harnesses the power and technologies developed by Audio Research into an authoritative platform to reveal the performances in your media.

This item cannot be ordered online. If you are interested please click on the Ask a Question button below.

Powered with the new KT150 output tube, the GSi75 supplies finesse and control that belies the 75-watt per channel power rating. The digital-to-analog converter will handle almost any sampling frequency including DSD. The phono stage and headphone amplifier round out the GSi75, providing total system control and integration. The elegant, understated industrial design will complement the rest of your system both visually and sonically.

Technical Specification:

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.)

Inoout Imepdance

  • 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 Requirements

  • 100-125VAC 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

We endeavour to despatch same day (for orders placed up to 2pm) on available stock items to the vast majority of UK mainland addresses. Please remember to check with us first for a physical stock check if next day delivery is important to you.

UK ORDERS:  We despatch the bulk of our UK mainland items on a 24 hour service – Free of Charge.  Free delivery also applies to the Isle of Man, Isle of Wight, the Scilly Isles, the Scottish highlands and Islands, the Channel Islands and Northern Ireland but may take a day or so longer. Smaller items are delivered using Royal Mail recorded delivery or special delivery. Larger items are delivered using a courier service such as Interlink Express, DPD, UPS or DHL. 

INTERNATIONAL ORDERS: We offer competitive rates which can be confirmed by email. Please just ask – we will need a full delivery address and telephone number. Smaller items are delivered using Royal Mail Small Packets Airmail with International Tracked and/or Signed depending on value of item and availability of the service. Larger International shipments are sent by insured and tracked services using DPD, DHL or UPS. If there are any delays due to specific customs regulations, etc, you will be contacted by Hifisound or by the courier with a request for any further information required. Customs duties do not apply for shipments into any EU country (for a full list please refer to the EU Country List). Customs duties can apply for countries outside of the EU. Customers in these countries are responsible for all taxes and duties incurred when the items enter their country.

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