Channel Imbalance in your Volume Pot - Some Thoughts   Note: this article can also be downloaded as a pdf (with higher picture resolution) from our website:  http://www.practicaldevices.com/techdocs.htm     The volume pot is a fairly critical component of any audio amp; since we deal...

For the remainder of April 2009, we are offering these freebies with XM5s. Free AD8397 DoubleCat upgrade (You still also get the pre-installed stock pair of OPA134s, and copper busbars) Free upgrade to a black case Free shipping worldwide Free Tersus™ gold plated interconnect cable (as always)...

Greetings all... due to popular demand, we've changed the USB DAC in the XM5. The new DAC is BurrBrown/TI's PCM2702E, which is the best USB dac they offer. We view this as a substantial improvement. We've also swapped the two 1/8" jacks (also due to popular demand!) so it'll better...

A heads-up: Practical Devices finally released the XM5. Arguably the most stuff ever squeezed into a portable. More details to follow. Details & Specs: Practical Devices Corporation Pictures: XM5 Picture Gallery

Free Shipping Offer: Practical Devices Corporation is pleased to offer Free Shipping for the XM4 Portable Headphone Amp to all Head-Fi members, during July. Instructions: 1) Place your order on our website http://www.practicaldevices.com/purchase.htm and pay using PayPal, before July...