Description
The VAC Master Preamplifier translates the refined engineering principles of VAC’s Statement line into an elegantly focused control center for discerning audio systems. Employing the same hand-wired Class A1 circuitry, precision components, and construction methodology as its cost-no-object counterparts, the Master delivers Statement-level performance in a more streamlined package. A massive 2.2 kg custom brass volume control with integral shielding provides infinite resolution adjustment, complemented by motorized remote control for seamless gain management. All audio circuits mount on mass-loaded machined plates decoupled from the main chassis, maximizing detail retrieval and imaging while virtually eliminating microphony. Premium z-foil resistors and VAC transformers ensure sonic purity throughout the signal path. When optionally equipped with the dedicated phono stage, a separate power transformer and isolated DC umbilical cable maintain complete electrical independence between phono and line sections—effectively creating an external-quality phono stage within the chassis while preserving the critical ground reference integrity essential for conveying fine signal detail. Premium resistors and exotic capacitors match those found in VAC’s Statement Phono Stage.
Specification
|
Gain |
12 dB |
|
Inputs |
3 sets RCA line input 2 sets balanced/RCA selectable inputs 1 set balanced/RCA cinema bypass input Optional 1 MM and 1 MC (or additional line input if phono is not fitted) |
|
Outputs |
2 sets RCA 2 sets balanced XLR (EIA “pin 2 hot” studio standard) |
|
Tubes |
2x 12AU7 2x 8416, 7308, 6922, E88CC, ECC88, 6DJ8, (or 12DJ8 twin triodes) |
|
Absolute Phase |
correct from all inputs to all outputs |
|
Frequency Response |
Flat over audio band –3 dB bandwidth 5 Hz – 210 kHz |
|
THD |
<0.009% @ 1 kHz, 1 V RMS |
|
Maximum Output |
< 8 V RMS |
|
Output Impedance |
> 150 ohms, 20 Hz – 20 kHz, static (i.e., not dependent upon feedback) |
|
Maximum Input |
Infinite signal (attenuation precedes the gain circuitry) |
|
Recommended Output Load |
> 300 ohms |
|
Power |
External power supply, detachable umbilical cable, detachable IEC power cord Unity gain from selector, non-inverting for archival integrity |
|
Cinema Bypass |
Yes |
|
Voltage |
May be factory configured for operation at 100, 120, 220, or 230/240 volts |
|
Remote Control |
included |
|
Illumination |
Illuminated logo may be switched off |
|
Finish |
Hand-rubbed gold-flake gloss black lacquer with chrome knobs standard. Hand-rubbed metallic gloss silver lacquer with chrome knobs special order with additional cost. |
|
Warranty |
Two years parts and labor, excluding tubes (USA, see manual for full details) |
|
Dimensions (H x W x D) |
Audio chassis (not including knobs and connectors): 5.5″ x 18″ x 14.5″ (14 cm x 45.7 cm x 36.8 cm) Power supply (not including connectors): 4.3″ x 18″ x 14.5″ (10.9 cm x 45.7 cm x 36.8 cm) |
|
Shipping Weight |
With phono: 75 lbs. (27.7 kg.) |
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