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Model SD135
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.
Please contact your dealer or importing distributor for
instructions on proper disposal of this product in your
country. Or, contact Audio Research Corporation (763-577-
9700) for the name of your importing distributor and how
to contact them.
Packing and shipping materials may be disposed of in a
normal manner.
Warranty Terms and Conditions
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 shipping 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
ability 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
description of the problem(s) encountered, and any infor-
mation necessary for return shipment. The cost of return
shipment is the responsibility of the purchaser.
4
Specifications
POWER OUTPUT: 130 watts per channel into 8 ohms from
20Hz to 20kHz. 230 watts per channel into 4 ohms.
POWER BANDWIDTH: (-3dB points) 2Hz to 200kHz.
FREQUENCY RESPONSE: (-3dB points at 1 watt)
0.4Hz to 300kHz.
INPUT SENSITIVITY: 3.2V RMS BAL for
rated output. (20 dB Bal gain into 8 ohms.)
INPUT IMPEDANCE: 300K ohms Balanced, 150k ohms SE.
OUTPUT POLARITY: Non-inverting. Balanced input pin 2+
(IEC-268).
OUTPUT REGULATION: Approximately 0.05dB 8 ohm load
to open circuit (Damping factor approximately170).
OUTPUT CURRENT: 60 Amps peak (1 millisecond)
OVERALL NEGATIVE FEEDBACK: 7dB.
SLEW RATE: 50 volts/microsecond.
RISE TIME: 1.0 microseconds.
HUM & NOISE: Less than 0.05.1mV RMS – 116dB below
rated output (IHF weighted, input shorted).
POWER SUPPLY CAPACITANCE: 96,000 uF.
POWER REQUIREMENTS: 105-125VAC 60Hz (210-250VAC
50Hz) 500 watts at rated output (130 WPC 8 ohms) 600 watts
max, 150 watts idle.
DIMENSIONS : 19" (48.3 cm) W x 6.25" (15.9 cm) H x 15"
(38.1 cm) D. Handles extend 1.5" (3.8 cm) forward.
WEIGHT: 42.8 lbs. (19.5 kg) Net; 55.3 lbs. ( 25.2 kg ) Shipping.
Specifications subject to change without notice.
©2007 Audio Research Corporation.
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