Audio Research VSi75 Vacuum Tube Integrated Amplifier High Definition

This listing is for a one owner Audio Research VSi 75 with extremely low usage in excellent condition. Includes the correct box, manual, remote control and power cord. 

from their website:

The VSi75 integrated amplifier breaks new ground in an ‘all in one’ product design, and sets a new benchmark in the lifelike reproduction of music. The VSi75 continues the design series of ‘open chassis’ products from Audio Research such as the VSi60 and VS115, yet incorporates new developments from the Reference series product to combine in a visually striking and sonically astonishing product. The VSi75 springboards from the award-winning VSi60 and takes the listener to new plateaus of musical enjoyment. While similar in form to the ’60, the chassis has been reworked and refined to reflect the industrial design for which Audio Research is known: the front panel reflects those on full-size components, the perforated cover hearkens back to earlier Audio Research products, and the chassis is a sealed, monochromatic silver to match with the rest of the components. The front panel sports a new LCD display which clearly displays input, volume and other functional information.

Performance-wise, the VSi75 is in an entirely different league for a number of reasons. It has a new power transformer that was designed around the KT150 output tube. The VSi75’s wide bandwidth output transformers are the same as those in the remarkable Reference 75, and we also incorporate some key REF75 parts including proprietary coupling caps. And, we doubled the bulk power supply caps.

The resulting sound from these cumulative improvements is striking, with tremendous resolution of detail, silky and extended highs, surprising weight and authority, and the ability to develop an immense sound stage. The VSi75 sounds very much like the amp from which it borrows, the REF75, with an immediacy, delicacy and focus that are captivating. Couple it with a deserving source like the REFCD9 for a euphoric experience.

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 

(5) 1, 2, 3, 4, 5 (Single Ended RCA connectors).

MAXIMUM INPUT 

10V RMS (any input).

OUTPUT POLARITY

Non-Inverting (any input).

PUSH BUTTONS

Volume up, Volume down (103 steps), Power, Input, Mute, Bias. All functions on IR remote control.

OUTPUT REGULATION 

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

OUTPUT TAPS

8 ohms, 4 ohms.

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).

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.

DIMENSIONS 

Width 14.5” (36.8 cm); Height 9.25” (23.5 cm); Depth 16.25” (41.3 cm); Rear connectors extend .88” beyond chassis.

WEIGHT 

36.4 lbs. (16.5 kg) Net; 49.3 lbs. (22.4 kg) Shipping.

 Orig MSRP is $9000.00. Offered for $5900.00 with $100 domestic shipping.

In stock and ships next day.

_________________________________________________________ 

Revised shipping policy as of September 20, 2017.
Due to items lost or damaged in shipping, any item over $50.00 in 
cost will require delivery confirmation and insurance for the sale 
amount. It is unfortunate that this is necessary but experience has 
proven it is well worth the small extra cost. We apologize for this, but 
it is for the good of all involved.
TERMS: 
All listings are plus shipping unless noted. 7.00% sales tax added 
to all In-state destinations. This unit is guaranteed to be in "as 
described" working condition (unless otherwise noted) upon arrival and 
has a 60 day limited warranty, baring any abuse. 15% restocking fee on 
all returns unless defective or "not as described"
SHIPPING: 
We ship internationally on smaller items . Domestic packages are 
shipped via Fed Ex. All international shipping quotes will include 
insurance and delivery confirmation. Shipping charges reflect actual 
cost of shipping, plus a nominal fee for packaging materials.
INSURANCE: 
International shipments to countries that do not allow insurance, 
buyer assumes FULL RESPONSIBILITY for the safe shipment of their 
packages. Sound Ideas cannot provide refunds or compensation for 
packages shipped without shipping insurance. All shipping quotes for 
packages shipped includes insurance.
RETURNS: 
Any item may be returned within 15 days for a full refund of the 
purchase price, not including shipping, unless otherwise stated in the 
ad. It must arrive back at our store in the same condition as 
sent. 15% restocking fee on new items that were opened.
international purchases need to be returned with incoming custom's 
duty prepaid, if any. Any postage or import duty that is due upon 
arrival will be deducted from the refund. 15% restocking fee also on all 
returns unless defective or "not as described."
Thank-you for your time and interest!!