Sigma 160i vs Sigma 170i
The Sigma 170i's power @ 8ω is 85W against the Sigma 160i's 86W. Both share signal-to-noise (69 dB), mm gain (37 dB), and mc gain (57 dB).
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The VAC Sigma 160i is an all-tube integrated amplifier delivering 86 watts per channel using four KT88 output tubes plus 12AU7 and 12AX7 small-signal tubes. It combines a true tube line control stage with an optional phono section (37 dB MM gain, 57 dB MC gain), with optional MC and balanced inputs available. Separate rectification and power filtering for low-level stages and a circuit layout derived from VAC's Statement series ensure low noise and high stability. Speaker outputs serve 4 and 8 ohm loads. Features include a 12-volt trigger, home-theater bypass, preamplifier outputs, and motorized remote volume control. Superseded by the Sigma 170i iQ, the Sigma 160i is no longer in VAC's current product listings. A Sigma 160i SE version with upgraded transformers and passive parts was also produced.
Amplification power output and characteristics
Analog signal output specifications
Phono stage specifications
Input and output connections
Size, weight, and appearance
Specifications are community-contributed and may not be accurate or complete. Verify all details with the manufacturer before making purchasing decisions. Terms & Conditions
Estimated price (community-sourced)
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The closest alternatives on specs, description and the systems they turn up in, with the specs they share set side by side.
The Sigma 170i's power @ 8ω is 85W against the Sigma 160i's 86W. Both share signal-to-noise (69 dB), mm gain (37 dB), and mc gain (57 dB).
The Unico Due's power @ 8ω is 100W against the Sigma 160i's 86W, its power @ 4ω 180W against 86W, its signal-to-noise 115 dB against 69 dB, and its mm gain 40 dB against 37 dB.
The Stereo 845PP's power @ 8ω is 40W against the Sigma 160i's 86W, its power @ 4ω 32W against 86W, and its signal-to-noise 93 dB against 69 dB. Both share output voltage (8.0V RMS).
The IT-85's power @ 8ω is 60W against the Sigma 160i's 86W, its power @ 4ω 80W against 86W, its signal-to-noise 95 dB against 69 dB, and its weight 29.48 kg (65 lbs) against 30 kg (66 lbs).
McIntosh C2300
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