Disposal and Recycling Guidelines
To dispose of this electronic product, do not place in land-
fill. In accordance with the European Union Waste Electri-
cal and Electronic Equipment (WEEE) directive effective
August 2005, this product may contain regulated materials
which upon disposal require special reuse and recycling
processing.
Limited Warranty
Audio Research Corporation products are covered by a
3-Year Limited Warranty or a 90-Day Limited Warranty
(vacuum tubes). This Limited Warranty initiates from the
date of purchase, and is limited to the original purchaser, or
in the case of demonstration equipment, limited to the
balance of warranty remaining after original shipment to
the retailer or importer.
In the United States, the specific terms, conditions and
remedies for fulfillment of this Limited Warranty are listed
on the warranty card accompanying the product in its ship-
ping carton, or may be obtained from the authorized
retailer or from the Audio Research Customer Service
Department. Outside the United States, the authorized
importing retailer or distributor has accepted the responsi-
bility for warranty of Audio Research products sold by
them. The specific terms and remedies for fulfillment of
the Limited Warranty may vary from country to country.
Warranty service should normally be obtained from the
importing retailer or distributor from whom the product
was purchased.
In the unlikely event that technical service beyond the abil-
ity of the importer is required, Audio Research will fulfill
the terms and conditions of the Limited Warranty. Such
product must be returned at the purchaser's expense to the
Audio Research factory, along with a photocopy of the
dated purchase receipt for the product, a written descrip-
tion of the problem(s) encountered, and any information
necessary for return shipment. The cost of return shipment
is the responsibility of the purchaser.
Specifications
POWER OUTPUT
: 50 watts per channel continuous from
20Hz to 20kHz. 1 kHz total harmonic distortion typically 1% at
50 watts, below .05% at 1 watt.
Approximate actual power available at “clipping” 52 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 50kHz.
FREQUENCY RESPONSE:
(-3dB points at 1 watt)
1.0Hz to 60 kHz.
INPUT SENSITIVITY:
1.1V RMS Single-ended for rated
output. (25dB gain into 8 ohms.)
INPUT IMPEDANCE:
100K ohms Single-ended.
OUTPUT TAPS
: 8 ohms, 4 ohms.
OUTPUT REGULATION:
Approximately 1.0dB 8 ohm load to
open circuit (Damping factor approximately 10).
OVERALL NEGATIVE FEEDBACK:
12.5dB.
SLEW RATE:
5 volts/microsecond.
RISE TIME:
5 microseconds.
HUM & NOISE:
Less than 0.2mV RMS – 100dB below rated
output (IHF weighted, input shorted).
POWER SUPPLY ENERGY STORAGE:
Approximately 166
joules.
POWER REQUIREMENTS:
105-125VAC 60Hz (210-250VAC
50Hz) 320 watts at rated output, 500 watts maximum, 200
watts at “idle”.
TUBES REQUIRED:
2 – Matched pair 6550EH – Power
Output; 3 – 6N1P input and driver.
DIMENSIONS :
14" (35.6 cm) W x 7" (17.8 cm) H x 14"
(35.6 cm) D. Rear connectors extend .88" beyond chassis.
WEIGHT:
32 lbs. (14.5 kg) Net; 38 lbs. ( 17.3 kg ) Shipping.
Specifications subject to change without notice.
©2002 Audio Research Corporation.
Model VS55
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