Description
Experience the pinnacle of tube amplification with VAC’s Sigma 170i, featuring the revolutionary iQ Continuous Intelligent Automatic Bias System—a world-first technology that maintains optimal output tube performance across all operating conditions. This sophisticated bias management delivers enhanced clarity and dynamic range while simultaneously reducing distortion and noise floor. The iQ System extends tube longevity and safeguards your amplifier’s integrity, eliminating the traditional maintenance concerns associated with tube-based designs. The Sigma 170i represents the ideal convergence of integrated amplifier convenience and authentic tube sonics, offering audiophiles the warmth and musicality of valve amplification without the operational complexity.
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Wattage |
85 watts/channel |
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Power Bandwidth |
13 Hz to 70 kHz |
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Inputs |
Four line level inputs plus one Cinema Bypass input |
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Outputs |
Connections to precisely match loudspeaker loads of 4, 8 and 16 ohms |
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Tubes |
4x KT88 5x 12AU7A 1x 12AX7A |
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Voltage |
May be factory-configured for operation at 100, 120, 220, or 230/240 volts |
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Power Cord |
Detachable power cord, standard IEC power receptacle |
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Remote Control |
Volume & Mute, included |
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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. |
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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) |
8 x 18 x 17.3 in. (203 x 457 x 440 mm.) |
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Shipping Weight |
71 lbs. (32 kg.) |
Phono option:
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Gain |
37 dB MM |
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Frequency Response |
RIAA +/‑ 0.2 dB |
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Residual Noise |
3 mV at output (S/N ratio approx. 69 dB) |
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Overload |
117 mV @ 1 kHz = 8 volts RMS output; 460 mV @ 10 kHz |
| Variable loading |
Yes for MC |
| Tubes |
2x 12AX7A |
*Specifications subject to change without notice.
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