The Transaudios you mention are speakers, not headphones, right? You should be looking at building a speaker power amp instead, How about the β24? https://www.amb.org/audio/beta24/

@skwoodwiva Please visit the following sites for more info: https://www.amb.org/audio/beta22/ https://www.amb.org/audio/sigma22/ https://www.amb.org/audio/epsilon22/

amb.org suffered an outage due to problems at the ISP, but it's been online again since 6 days ago.

Good news! amb.org is back online.

Dear friends, Amb.org is currently down due to a problem at the ISP. Unfortunately it is taking a long time for them to fix it. I’m very upset that it has taken so long without resolution, and it appears that it will be down for maybe another several days. The level of service I’m receiving...

What switch mode DC regulators? Are you thinking of a different amp?

They could both be stacked to use less space. I put them side by side because I want to show each unit's internals.

A photo gallery of the meet, as taken from my camera, is here: http://www.amb.org/ti/audio/sjheadphonemeet2016/

I will be bringing the following gear: - Sennheiser HD800 and HD600 headphones - AMB β22 amplifier - AMB γ3 high resolution DAC - AMB γ2 compact high performance DAC - AMB γ1.5 miniature high-res USB DAC + headphone amp - AMB γ1 miniature DAC - AMB Mini³ portable headphone amplifier - AMB...

I will probably attend, gear list TBD.

You are all welcome to participate at the AMB DIY audio forum too. Even if you're not building an AMB project. We do have a "General DIY Discussions" subforum and an "Audio Talk" subforum. While the AMB forum is where I develop and support my projects, it was never intended to be only that. It...

This is not headphone-related, but if you're also into speaker-fi, and interested in a bi-amp or tri-amp setup, you might want to check this out. I have just finished developing an upgrade analog board for the Behringer DCX2496 and DCX2496LE DSP loudspeaker management systems. For full info...

LOL, no. I was "gone" long before that blogger guy appeared. There was a major exodus back to headwize around the 2005-2006 time frame, when the atmosphere in this forum got real hostile (thanks to a former moderator who is no longer with us). I created the AMB DIY audio forum back in early...

Here's a photo of a CK²III headphone amp PCB upgraded with σ78 and σ79 regulators:

If you have gear that uses the 78xx and/or 79xx series voltage regulator in TO-220 packages, and ultra low noise and high PSRR are important, then it is a candidate for upgrading to the σ78 /σ79. σ78 and σ79 (as supplied with regulator chip pre-soldered): A fully-populated σ78 (minus the...