Sold.

Bump for final price drop to $85 shipped USPS.

Bump for price drop.

Time to pass these along to someone else who will use them. Sold the HD 6XX that were previous part of this listing. Second owner of the AKG K371, which I bought mostly to have a set of closed cans, in great condition. Again, no original box. The original long and short straight and original...

Looking for a clean black SU-6 here before I send my money to Amazon for a new one. Thanks for looking.

Bought it lightly used in January 2020 via head-fi and no longer need it after it sat for months. Works just fine, slight noise when adjusting the volume pot in the 2 o'clock to max range when I tested it today with HD6XX on high gain, just as it always did and was typical of this model. Will...

Excellent complete and prompt communications, quick shipment, and the amp was in pristine condition, just as described. Totally trouble-free transaction at a great price. I would not hesitate to deal with him in the future!

Bought one when I intended to use software DRC in a revamped speaker rig, then a second one for a potential balanced headphone rig. Going with hardware DRC and unbalanced headphone amp, so both need to go. This one is $165 via PayPal, shipped USPS Priority Medium Box within the US. I received...

Bought one when I intended to use software DRC in a revamped speaker rig, then a second one for a potential balanced headphone rig. Going with hardware DRC and unbalanced headphone amp, so both DACs need to go. Asking $165 via PayPal, shipped USPS Priority Medium Box within the US. Thanks for...

Took the plunge when I found that their official dealer on eBay (head-director) had lowered the price to $59, including shipping. They arrived today and I am quite impressed.   I'm not a huge mobile listener/IEM user, as I tend to listen to a desktop rig with HD600s. I have used Audeo PFE111s...

I say just ignore the "warning" and use the K1. You won't harm it or the amp, and the frequency response can't be impaired by driving the higher impedance load of the amp. 

A more technically correct way to put that is the adapter adds 75 ohms more impedance to the load seen by the output of the amp. It doesn't change the impedance of the phones.

I used my K1 to drive my CKKIII headphone amp with no problem. Driving the much higher impedance load of an amp input versus any headphone/earphone should not present a problem for a device like the K1. If it is, I'd like to hear the explanation for that!

Has anybody else using a K1 with on Windows 7 noted that if the K1 is connected, the screen saver no longer functions? We had a short power outage the day I first used the K1 and ever since, no matter how many times I disabled/re-enabled the screen saver or changed the time before it would...

Quote:   That's an interesting comment...   When the 0404 USB came out and I was involved in discussions about it on other audiophile forums, two independent designers of high-end USB DAC's commented to me via PM's that they couldn't believe how good it sounded...and how they'd never...