Description
The Signature Mk IIa’s line stage employs a direct-coupled topology without coupling capacitors, preserving signal integrity and revealing fine detail throughout the audio spectrum. Operating without global feedback ensures output stability and eliminates dynamic loading interactions. Six standard line inputs accommodate most source components, with an optional six-tube phono stage delivering low-noise amplification for moving coil cartridges while offering adjustable gain and resistive loading. Isolated heater circuits via electrostatic decoupling prevent cross-talk that typically compromises resolution. A dedicated power transformer shields the sensitive phono signal from line stage interference. The Special Edition designation denotes premium input transformers sourced from VAC’s Statement and Master components, elevating performance across the signal path. Illuminated VAC badging—blue during operation, red when muted—adorns the precision-machined 3/8″ faceplate.
Specification
| SIGNATURE MK IIA Optional MM/MC phono stage with user adjustable loading | |
|
Gain |
12 dB |
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Inputs |
|
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Outputs |
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Tubes |
2x 12AU7 |
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Absolute Phase |
correct from all inputs to all outputs |
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Frequency Response |
Flat over audio band |
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THD |
<0.009% @ 1 kHz, 1 V RMS |
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Maximum Output |
> 8 V RMS |
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Output Impedance |
< 150 ohms, 20 Hz – 20 kHz, static (i.e., not dependent upon feedback) |
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Maximum Input |
Infinite signal (attenuation precedes the gain circuitry) |
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Recommended Output Load |
> 300 ohms |
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Power |
External power supply, detachable umbilical cable, detachable IEC power cord |
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Cinema Bypass |
Yes |
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Voltage |
May be ordered for 100v, 120v, 220v, or 230/240v operation |
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Remote Control |
included |
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Illumination |
Illuminated logo may be switched off |
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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. |
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Warranty |
Two years parts and labor, excluding tubes (USA, see manual for full details) |
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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) |
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Shipping Weight |
With phono: 61 lbs. (27.7 kg.) |
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