Sigma 160i / Sigma 160i SE
Integrated Amplifier

VAC’s most affordable and compact music solution is a full-integrated amplifier, with 85-watt/channel power amplifier, true triode tube line control amplifier, and triode moving magnet phono stage. Flexibility is ensured by standard remote control, home theater input, preamplifier outputs, and optional MC and balanced inputs. If sound quality and simplicity are the priorities, this exceptionally musical amplifier is the answer.

Product Brochure
Sigma 160i
  • Quality is held to VAC’s high standards, with great care taken in combining all of the elements of separate components into a single, well integrated package. Of particular essence is the presence of a true line stage (with optional balanced inputs), and a proper volume control (not a digital or VCA control on a microchip as is the modern fashion).

    The fact that every single stage in the audio chain is in intimate proximity means that they can share a very tight, precise common ground reference, to realize the true performance possibility of the integrated form. To ensure purity and stability, the Sigma 160i incorporates separate rectifiers and power filters for the preamplifier sections. Similarly, the mechanical placement of all of the parts, from the transformers to the vacuum tubes to the capacitors and resistors has been undertaken using the principals embodied in our cost-no-object Statement amplifiers.

    The Sigma 160i SE (Special Edition) enhances performance by upgrading the input transformers and many passive parts to the types used in the premium Statement instruments. Greater size, detail, speed, and weight is the result.

    An optional glass/machined aluminum cage is available, for an appearance reminiscent of the Statement amplifiers.

  • Wattage

    86 watts/channel


    37 dB MM

    57 dB MC

    Frequency Response

    RIAA +/- .25 dB

    Power Bandwidth

    13 Hz to 70 kHz


    MC and balanced inputs optional


    Connections to precisely match loudspeaker loads of 4 and 8 ohms


    4x KT88

    4x 12AU7

    3x 12AX7

    Residual Noise

    3 mV at output (S/N ratio approx. 69 dB)


    117 mV @ 1 kHz = 8 volts RMS output; 460 mV @ 10 kHz


    May be factory-configured for operation at 100, 120, 220, or 230/240 volts

    Power Cord

    Detachable power cord, standard IEC power receptacle

    12-Volt Trigger


    Remote Control



    Illuminated logo may be switched off


    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.


    Two years parts and labor, excluding tubes (USA, see manual for full details)

    Dimensions (H x W x D)

    7.9 x 18 x 18 in. (201 x 457 x 458 mm.)

    Shipping Weight

    67 lbs. (30 kg.)

    NOTE: Phono stage does not invert absolute phase.

    *Specifications subject to change without notice.

  • “The VAC sound is audio-writ large but properly proportioned; it is elegant, opulent and ebullient. The vastness and spatiality of the soundstage with the Phi 200 is quite surprising when heard for the first time - you likely have not heard the expansiveness a fine tube amp can bring to a system... My experience with the Phi 200 is that I can be assured that no matter which loudspeaker I put into the rig I’ll get top quality sound... Their quality, reliability and unimpeachable sound earn them a resounding recommendation.”

    - Doug Schroeder, December 2010