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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

: 110 watts per channel continuous  from

20Hz to 20kHz. 1 kHz total harmonic distortion typically 0.3%
at 110 watts, below 0.03% at 1 watt.

Approximate actual power available at “clipping” 120 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 60kHz.

FREQUENCY RESPONSE: 

(-3dB points at 1 watt) 

0.6Hz to 90 kHz.

INPUT SENSITIVITY: 

1.8V RMS BAL for 

rated output. (24 dB Bal gain into 8 ohms.)

INPUT IMPEDANCE:

300K ohms Balanced.

OUTPUT POLARITY

: Non-inverting. Balanced input pin 2+ 

(IEC-268).

OUTPUT TAPS

: 16 ohms, 8 ohms, 4 ohms.

OUTPUT REGULATION:

Approximately 0.7dB 16 ohm load

to open circuit (Damping factor approximately 12).

OVERALL NEGATIVE FEEDBACK: 

12dB.

SLEW  RATE:

10 volts/microsecond.

RISE TIME:

3.5 microseconds.

HUM  & NOISE:

Less than 0.2mV RMS – 106dB below rated

output (IHF weighted, input shorted). 

POWER SUPPLY ENERGY STORAGE:

Approximately 520

joules.

POWER REQUIREMENTS:

105-125VAC 60Hz (210-250VAC

50Hz) 630 watts at rated output, 800 watts maximum, 410
watts at “idle”.

TUBES REQUIRED: 

4 – Matched pair 6550C – Power 

Output;  4 – 6H30 Driver.

DIMENSIONS : 

19" (48.3 cm) W x 8.75" (22.2 cm) H x 19.5"

(49.5 cm) D. Handles extend 1.5" (3.8 cm) forward.

WEIGHT:

67.4 lbs. (30.7 kg) Net; 83.0 lbs. ( 37.8 kg ) Shipping.

Specifications subject  to change without notice.

©2006 Audio Research Corporation.

5

Model Reference 110

Summary of Contents for Reference 110

Page 1: ...3900 ANNAPOLIS LANE NORTH PLYMOUTH MINNESOTA 55447 5447 PHONE 763 577 9700 FAX 763 577 0323 Model Reference 110 STEREO POWER AMPLIFIER Owner s Manual...

Page 2: ...Preparation for Use 2 Panel Controls 2 Use of Controls 2 Installation 2 Connections 2 3 Remote Turn on Connections 3 Operating Procedure 3 Output Tube Bias Adjustment 4 Cooling Fan Speed Adjustment 4...

Page 3: ...S WHICH MAY BE HAZARDOUS REFERENCE 110 S T E R E O A M P L I F I E R VOLTS SERIAL PLYMOUTH MINNESOTA CAUTION FOR CONTINUED PROTECTION AGAINST FIRE HAZARD REPLACE FUSE ONLY WITH SAME TYPE AND RATING WA...

Page 4: ...The 12 gauge 3 conductor detachable power cord on your Reference 110 is equipped with a standard 3 prong grounding plug If used normally it will provide a safe earth ground connection of the chassis R...

Page 5: ...r installation will cause premature tube failure and will affect your warranty as well as the service life of the unit It is normal for a vacuum tube power amplifier to run quite warm and if used for...

Page 6: ...in the preamplifier through its grounded power cord Other equipment in the system should have some form of isola tion to prevent ground loops and associated hum Always place the power on off switch on...

Page 7: ...ld stop running Hour Meter An LCD hour meter of elapsed tube operating time can be viewed through the top cover near the front mounted on the right main circuit board Displays accumulated hours of vac...

Page 8: ...encountered and any information necessary for return shipment The cost of return shipment is the responsibility of the purchaser Specifications POWER OUTPUT 110 watts per channel continuous from 20Hz...

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