Audio Research VT150 // Preowned / Tube Monoblock Amplifiers

The Audio Research VT-150 is the tube monoblocks amplifier for audiophiles who believe power, finesse, and musicality shouldn’t just coexist—they should dominate. Introduced in the 1990s, the VT-150 combines classic tube warmth with modern engineering precision, delivering a staggering 130 watts per channel in monoblock configuration. If you’ve got power-hungry speakers, a thirst for dynamics, and a soft spot for glowing tubes, the VT-150 is here to flex its sonic muscles while cradling your music in the warm embrace of tube magic.

Ships in the original boxes.

Production

1994-1995

Condition

9/10

Serial No.

26070001 / 26070002

Orig. MSRP

$12,000

Restoration

• Replaced several capacitors in feedback circuit
• Cleaned bias switches
• Adjusted bias for each output tube
• Repaired bad connections on bias switch wiring
• #0001: Replaced one 12ax7 and two 6550 tubes in power supply with strong tubes in unit 
• #0002: Replaced one 12ax7 and 6550 tubes in power supply with strong tubes 
• All remaining tubes test strong
• Replaced missing screws in chassis cover
• #0001: 131 watts RMS into 8 Ohms @0.23%THD+N
• #0002: 130 watts RMS into 8 Ohms @0.91%THD+N
• Units come with original box

Factory Specs

Power output: 130 watts into 16Ω (mono)

Frequency response: 2Hz to 200kHz

Total harmonic distortion: 1%

Damping factor: 16

Input sensitivity: 2.3V

Signal to noise ratio: 98dB

Valve complement: 4 x 6550, 2 x 6550 regulators, 1 x 12AX7, 4 x 12BH7A, 2 x 6922

Dimensions: 394 x 277 x 267mm

Weight: 77.2lbs each

The History of Audio Research

Audio Research Corporation, affectionately known to fans as ARC, was founded by William Z. Johnson, who began designing custom audio electronics in the early 1950’s and who also operated a specialty audio retail store until the mid-1960’s. Johnson’s efforts almost single-handedly revived vacuum-tube designs at a time...
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Liner Notes

 

Stock No.

8891673608413