VAC Standard Preamplifier Mk II

All new for 2006, the VAC Standard Preamplifier Mk II is a jump over the very best of 'traditional' vacuum tube preamps. The sound is distinctly more lively than before.

The four tube Class A triode line stage is derived from the premium VAC Phi Beta. It offers superb sound and has balanced outputs, remote control, the VAC Cinema Bypass™ feature, a specially shielded integral power transformer, and a 3/8" beveled aluminum fascia with deep black lacquer finish.

The optional triode phono stage features passive RIAA equalization for open, detailed sound.

VAC Standard Preamplifier Mk II Basic Specifications

• Type: Remote controlled Class A all Triode Vacuum Tube Preamplifier with separate power supply and Cinema (home theater) pass-through.

Line stage preamplifier:

• Gain: 22 dB
• Maximum input signal: Infinite (attenuation precedes the gain circuitry)
• THD: Approx. .04%
• Output impedance via RCA jacks: 600 ohms, inverting from all sources and to main outputs
• Balanced output via XLR connector with positive phase on pin 2, negative phase on pin 3 ("pin 2 hot" EIA / RCA standard)
• Tape output: Unity gain from selector, non-inverting for archival integrity
• Cinema pass-through: Non-inverting, no gain, does not compromise the sound quality of normal stereo operation. May also be used for input of stereo source components with their own level controls (dacs, etc.).
• Specially shielded power transformer
• Optional balanced input
• Detachable power cord, IEC receptacle
• May be ordered for 100v, 120v, 220v, or 230/240v operation
• 2 x 12AU7, 2 x 12AX7 tubes

MM Phono stage (option):

• Class A Triode Vacuum Tube
• Gain: 40 db (measured at tape output)
• Residual noise: less than 3 mv at output (S/N ratio greater than approx. 69 db)
• Overload: 117 mv @ 1 kHz = 8 volts RMS output; 460 mv @ 10 kHz
• Frequency response: RIAA +/- .25 dB
• 47k load
• 3 x 12AX7 tubes

MC Step-up (option):

• 20 db passive gain
• works in conjunction with the MM Phono option
• switchable between MM and MC mode

Other:

• Dimensions: 18 inches wide, 4 inches high, 15.3 inches deep (+ knobs & connectors)
• Shipping weight: approximately 25 pounds
• Machined 3/8" aluminum faceplate, custom machined knobs, extensively braced chassis
• Three years parts and labor warranty, excluding tubes.
• Specifications subject to change and improvement without notice

"We build the world's finest audio components"TM

Valve Amplification Company

Copyright 2006 by Valve Amplification Company.  All rights reserved.  Specifications subject to change without notice.