VAC Sigma 170i Tube Integrated Amplifier

Name: VAC Sigma 170i Tube Integrated Amplifier
Brand: The Music Room
SKU: 98385
Price: 5999.0 USD
Availability: InStock

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$10,900.00 (45% Off Est. Retail)

From $5,999.00

$10,900.00 (45% Off Est. Retail)

$5,999.00

From $5,999.00

$5,999.00

+$135.00 Shipping to contiguous US.
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Product Highlights

Output Wattage: 85 Wpc into 4, 8, or 16 ohms. Key Features: Patented iQ Continuous Intelligent Automatic Bias System, pure Class A triode line stage, ultralinear push-pull output, four RCA inputs (optional XLR and MM/MC phono stage with adjustable loading), Cinema Bypass, preamp out, 2–4, 4–8, and 8–16 ohm speaker taps, Cardas binding posts, and tube complement of 4x Gold Lion KT88s, 5x 12AU7As, and 12AX7As. Handcrafted in the USA, the VAC Sigma 170i Stereo Tube Integrated Amplifier packages reference component engineering into a single chassis. Its continuous iQ bias system monitors output tubes in real time, guaranteeing optimum bias, extended tube life, and peak dynamics without manual adjustment.

Reviews praise the Sigma 170i for combining classic tube musicality with solid-state precision and control. Critics highlight its sweet treble, lush midrange, spatial depth, and surprisingly authoritative bass impact. Reviewers acclaim the iQ auto-bias system for providing stress-free operation, while the optional phono stage receives high marks for matching the performance of dedicated high-end standalone units.

This amplifier offers the spatial realism, fluid dynamics, and holographic warmth of elite valve playback alongside true plug-and-play simplicity. Built to heirloom standards, the Sigma 170i effortlessly drives demanding speakers, making it an ideal single-chassis heart for any high-performance audio system.

Brand	VAC
Type	Integrated Amplifiers
MSRP	$10,900.00
SKU #	98385
Serial #	1928201
Cosmetic Rating	9 - Excellent condition with no notable blemishes.
Functional Notes	Operational condition of this item is excellent, fully tested and no issues found.
Age	6 years
Owners	1
Service History	None

Amplifier, Remote, 4 Linlai KT88 Tubes, 5 GE 6189W Tubes, 1 Genalex ECC83 Tube, Power Cable, Factory Packaging

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