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Vac Master 300 iQ Musicbloc™ Power Amplifier

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The VAC Master 300 iQ Musicbloc™ represents a masterfully engineered power amplifier that distills the sonic excellence of VAC's flagship Statement 452 into a more accessible platform. Sharing identical audio circuit topology, premium components, and meticulous hand-wired construction, the Master 300 delivers the same tonal character with only 1.5 dB reduction in maximum output—ideal for most high-end audio systems. Flexible Musicbloc™ configuration allows operation as either 160 watts per channel in stereo or 300+ watts in dedicated mono mode via rear-panel switches, accommodating diverse speaker loads and system architectures. Fully balanced signal paths throughout employ direct-coupled Class A1 input and driver stages with low-mu octal triodes, while the output stage leverages legendary KT88 beam power tubes optimized by VAC's patented iQ Intelligent Continuous Automatic Bias System for effortless operation and automatic tube-change notification. Engineered with premium transformers, resistors, and capacitors selected for their sonic contribution, the Master 300 prioritizes musical authenticity—delivering vivid, emotionally engaging reproduction that transcends technical specifications to reveal the artistry within your recordings.

 

Type

Pure vacuum tube power amplifier, Mono or Stereo operation, Fully balanced

Output

160 watts/channel stereo or 300+ watts mono into 4 ohms

Tubes

4 x 6SN7GTB, 8 x KT88 (electrically compatible with KT90, KT99, KT120, and KT150)

Bias control

Automatic and continuous via the patented VAC iQ System

Size

18" W x 9" H x 23" D (457 x 229 x 584 mm) 130 lbs. (59 kg)

Note

Designed and Handcrafted in Sarasota, Florida, USA

The VAC iQ circuit protected by US Patent 8,749,310

*Specifications subject to change without notice.

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