Saturday, January 2, 2016

VAC Phi 170 iQ stereo amplifier


The all new VAC Phi 170 at first glance may seem like a normal 85 watt per channel stereo amplifier. Sure, it can be switched into a 170 watt monoblock, and it has a fully balanced input mode too, yet the real breakthrough is inside!

For the VAC Phi 170 is equipped with the company's revolutionary patented iQ Continuous Automatic Bias System. VAC's iQ is the only system able to hold each output vacuum tube's true underlying idle current perfectly steady at all times. Say goodbye manual adjustment, bias drift, thermal tracking effects, runaway tubes, and blown fuses. Say hello to more detail, increased extension and punch, lower noise, less distortion, and high reliability. It will even tell you when it's time to replace weak tubes!

The Phi 170 with iQ System provides superior sound... only from VAC!


Vacuum tube power amplifier with transformer coupled output

VAC iQ Continuous Automatic Bias System

Class A1 triode input and driver stages

Direct coupled input and driver stages

Frequency response is from 4 Hz to 71 kHz (+0/-3 dB)

Residual Noise is typically >95dB below rated output

Input impedance is 200k Ohms stereo balanced and 100 Ohms unbalanced

Gain is 30dB stereo balanced and 31dB mono balanced

Vacuum tube compliment is four type 6SN7 and four type KT88

Compatible with KT120 and KT150

Low feedback design (6dB)

12 volt trigger

Detachable power cord, IEC receptacle

Switch settings for fully balanced XLR or unbalanced RCA input

Stereo or mono operation

Power Output is 85 watts/channel stereo or 170 watts mono

Loudspeaker taps include 1 to 2 Ohms, 2 to 4 Ohms and 4 to 8 Ohms

Connectors are Cardas rhodium RCA jacks and Neutrik XLR jacks

Cardas rhodium loudspeaker binding posts

Dimensions are 17.8" x 14.2" x 8.5" (WxDxH)

Weight is 68 lbs.