This product may be subject to availability and manufacturer restrictions. Contact us for more information or to schedule an appointment! Welcome to the world of high-end audio with the VAC Sigma 170i Integrated Amplifier. This innovative product is the world's first integrated amplifier equipped with the patented iQ Continuous Intelligent Automatic Bias System. This revolutionary system ensures the true idle point of the output tubes remains steady under all conditions, enhancing detail and dynamics while reducing distortion and noise. The VAC Sigma 170i is not just an amplifier; it's a lifestyle choice. It offers all the benefits of tube amplifiers without the worry. With an output of 85 watts per channel, it's ready to be the heart of your high-end musical experience. The Sigma 170i comes with optional MM/MC phono and balanced inputs, making it a versatile choice for any audiophile. It features a pure vacuum tube audio circuitry, a true Class A triode tube line stage, and a pure analogue volume control. The amplifier is also equipped with a cinema bypass mode for tie-in to home theater, a remote control, and four inputs. It offers optional features such as MM/MC phono with adjustable MC loading, balanced input, and a perforated tube cage (required for CE countries). The Sigma 170i is handcrafted in the United States by VAC and comes with a fascia available in black or silver metal flake paint, hard chrome knobs, and an iQ display bar. It uses Gold Lion KT88 output tubes and premium Cardas RCA & speaker connectors. The Special Edition version of the Sigma 170i uses the Statement Series line input transformers with the balanced option and incorporates exotic capacitors and resistors in key circuit locations for a larger, more vivid, detailed, and organic presentation. Technical Specification: Specification Details Wattage 85 watts/channel Power Bandwidth 13 Hz to 70 kHz Inputs Four line level inputs plus one Cinema Bypass input, Optional balanced input on Input 4, Optional MM/MC phono on Input 1 Outputs Connections to precisely match loudspeaker loads of 4, 8 and 16 ohms Tubes 4x KT88, 5x 12AU7A, 1x 12AX7A Voltage May be factory-configured for operation at 100, 120, 220, or 230/240 volts Power Cord Detachable power cord, standard IEC power receptacle Remote Control Volume & Mute, included Finish Hand-rubbed gold-flake gloss black lacquer fascia with chrome knobs standard, Hand-rubbed metallic gloss silver lacquer fascia 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) 8 x 18 x 17.3 in. (203 x 457 x 440 mm.) Weight 71 lbs. (32 kg.) Phono Option Gain: 37 dB MM, 57 dB MC, Frequency Response: RIAA +/‑ 0.2 dB, Residual Noise: 3 mV at output (S/N ratio approx. 69 dB), Overload: 117 mV @ 1 kHz = 8volts RMS output; 460 mV @ 10 kHz, Variable loading: Yes for MC, Tubes: 2x 12AX7A Experience the magic of the VAC Sigma 170i Integrated Amplifier today. It's not just an amplifier; it's a love letter to the much-revered KT88. As Ken Kessler from hi-fi news puts it, "Damn, this is a fine amp... it laughed at everything I could throw at it, delivering via Sasha DAWs the kind of levels and soundstage which did justice to the scale of both 'big band' and classical orchestras. It's a love letter to the much-revered KT88, and it left me stunned."
