Channel Islands Audio VHP•1 headphone amplifier
Back in March, I wrote a reviewlethttp://www.stereophile.com/images/newsletter/305stph.html">reviewlet; of Channel Islands Audio's VHP•1 headphone amplifier for the Stereophile eNewsletter. (What—you aren't receiving that free download yet? Well, log on to www.stereophile.com and opt in.) The VHP•1 has continued to enchant me—reason enough to examine it in greater detail, I reckoned. But the real reason I returned to the VHP•1 ($349) is that CIA's Dusty Vawter recently sent me his new VAC•1 ($159), a replacement power supply for the VHP•1's stock wall-wart supply. Could a new power supply really offer a substantial improvement in performance?