Audio Research is one of the most dependable brand names when it comes to high-end audio systems. For years the brand has been recognized by audiophiles throughout the world as equipment that delivers clear and consistent quality in music.

What are the specs for the Audio Research D130?

Power Output:
130 watts per channel into 8 ohms, 200 watts per channel into 4 ohms
Power Bandwidth:
(-3dB Points) DC to 150 kHz into 8 ohms
Frequency Response:
Input Sensitivity:
1.7V RMS for rated output (25.5 dB Gain) unbalanced or balanced
Input Impedance:
150K ohms unbalanced, 300K ohms balanced differential
Output Taps:
Output Regulation:
0.08dB 8 ohm load to open circuit
Overall Negative Feedback:
Damping Factor:
Slew Rate:
50 volts/microsecond
Rise Time:
1.7 microseconds
Hum & Noise:
Less than 55 microvolts RMS (115dB below rated output IHF A-weighted)
Power Supply Energy Storage:
104,000 uF total
Power Requirements:
105-125VAC 60Hz (210-250VAC 50Hz) 400 watts at rated output (130WPC 8 ohms), 640 watts at 200WPC 4 ohms, 800 watts maximum, 75 watts idle
Input polarity: Non-inverting at unbalanced inputs. Balanced pin 2+ (IEC-268).
19" (48 cm) W x 5. 25" (13.4 cm) H (standard rack panel) x 8.375" (21.3 cm) D (behind front panel ). Handles extend 1.50" (3.8 cm) forward of front panel. Output connectors extend 1" behind rear panel.
27.3 lbs. (12.4 kg) Net; 38 lbs. (17.3 kg) Shipping.

What else to know about the Audio Research D130?

The D130 is a two-channel power amplifier using advanced semiconductor topology from input to output. Like Audio Research's most recent tube amplifier designs, the D130 uses distributed power supplies (52,000 uF total energy storage) on separate output stage circuit boards to yield a virtual dual-mono layout back to the A.C. power transformer. This layout minimizes signal-path lengths and allows the use of high-purity, low-ESR storage capacitors for quicker, cleaner transient response and better overall musical dynamics. Input impedance is a modest 150K ohms single-ended, making the D130 easy to drive with any Audio Research preamplifier. Multiple-emitter transistors (METs) are used in the output stage; these devices have the electrical ruggedness of a bipolar design, and the musicality that MOSFET devices are known for. A fast-acting, sonically transparent protection circuit shuts down the driver stage of the amplifier whenever a fault condition is sensed at either the input or output of the amplifier (indicated by amber LED). With ample power to drive most contemporary speaker designs (130 WPC into 8 ohms), the D130 is nonetheless compact in size, making it ideal for shelf or cabinet installation (it also has modest heat dissipation, thanks to generous heat-sinking of the output boards). Inputs include both balanced and single-ended connectors for convenient connection to a preamp or A-V processor. \[From the ARC website]

Brief History of Audio Research

Other Audio Research Products We Often Buy

Typically, StereoBuyers purchases mostly used amplifiers, especially the vintage amps and high-end Audio Research models.

StereoBuyers has purchased tens of thousands worth Audio Research brand equipment since 2014, with individual buys ranging from $100 to well over $50,000. If you are moving, ready to upgrade, or have Audio Research equipment you do not or will not be using, why not contact us today to find out if it is worth good money?

If you are interested in selling your used Audio Research equipment to us in the greater NYC area or Colorado, please click here to fill out a Free Quote Form and we will get back to you. If we agree on terms, we come to meet you where you want, and pay cash.

The following images show actual Audio Research equipment purchased by StereoBuyers.