I now have had several evenings to compare the sounds of several headphones on the Espressivo SET headphone amp. The list includes the W1000, W100, HD600, HD580 and my old DT311. When I was trying to decide between the W100 and W1000 (for personal purchase), I was torn. Some of the things...

I have finally chosen a name for my tube headphone amp: Espressivo. The web page has also been updated with some new information: http://www.nutshellhifi.com/gary I chose the name "Espressivo" because that is the term found in a musical score when the composer is asking the...

This last weekend I finished my new headphone amp, which features the Peerless TL-404 autoformer. A full description, with more images, is at my new headphone amp web page: http://www.nutshellhifi.com/gary

After much anticipation, and an all-day solder-fest on Saturday, my new headphone amp played music for the first time last night at about 10:30. Much to my relief, it worked right away! This is a good thing, because I didn't use my usual first-time process of bringing it up slowly with a Variac...

...but not for long. Sale price expires 11/30. As if we needed more hype about AT phones. But what is head-fi for anyway, right?

I am planning to build a META42 using a sealed lead-acid battery supply. Although portability won't be all that great, I want to combine freedom from mains/rectification noise with the ability to choose op-amps and buffers without having to keep voltages and currents in the...

According to the site, they have two units in stock, if anybody's looking for these. I'll have to pass...my wallet is still aching from the W100's and W1000's on the way. So hard to decide when you can't hear them in person before buying!