VAC•1 High Current Power Supply

Upgrade your CIAudio source components with the VAC•1. This power add-on brings improved bass definition, dynamics and noise performance.




Our VAC•1 is the perfect upgrade for our source components. The upgrade yields improved bass definition, dynamics and noise performance. Available in 120v and 240v input voltage (selectable by solder-in jumpers). IEC type AC socket for use with aftermarket power cords. AC input and output cables included.


VAC•1 is compatible with the following CIAudio Products:

  • VDA•1 24bit/96k Digital/Analog Converter
  • VDA•2 24bit/192k Digital/Analog Converter
  • VPP•1 MM/MC Phono Preamplifier
  • VHP•1 Headphone Amplifier
  • VHP•2 Headphone Amplifier
Download Product Literature »


Tone Audio Logo

Seriously though, whether you have the VHP-1 or 2, I feel the power supply is essential. It really takes this amp to a much higher level. Transient slam is better, and the bass is definitely a lot punchier. What I really enjoy about adding the power supply is that it is a big jump in performance the minute you plug it in, you won’t be struggling to hear what you spent another $160 on. ”

-Tone Audio [520KB PDF]

Stereophile Logo

The VHP•1’s already impressive bass response became even more powerfully solid with the heavy-duty power supply. Not deeper, simply more physical… This was no small improvement, but it wasn’t the biggest change the VAC•1 wrought. That would be its increase in dynamic contrast… With the VAC•1 powering the amp, there was more contrast between music and silence: where there was music, it seemed as if there was more of the stuff it was made from.”

-Wes Phillips, Stereophile


AC Input Voltage
Output Voltage
14VAC @ 1.44 Amps
IEC Type AC Cable, AC output Cable
4.40"w x 2.65"h x 4.40"d
1 Year Parts & Labor


VAC•1 Power Supply


Peace Of Mind

At CIAudio, we want you to be happy with your purchase. That’s why all our products come with a 30 day in home trial period. If you’re dissatisfied in any way, just return it and we’ll refund the full purchase price minus a 10% restocking fee.

Direct Ordering

All our products are sold factory direct to bring you great value on top of the best personal service in the business. You can order online with the PayPal buttons or call us.

Please read our full terms and conditions before ordering.