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.

• 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