Astell&Kern A&Norma SR15 – Purchased new by me directly from AK and used less than 20 hours. It is in day-one condition and will come with box, papers, two sets of unused front and back protectors, a like-new AK gray case and a 128GB micro SD card. Paid $800 for everything listed. Asking $315...

Beyerdynamic-Astell&Kern Special Edition T5P 2nd Generation – Purchased new by me and used for less than 20 hours. They are in new condition and will come with the original box, storage case, 4N pure silver and 7N OCC copper hybrid 2.5mm 4-pole cable, 2.5mm to 3.5mm AK adapter (same...

I experienced a similar issue with one of my Bottlehead amps, which I determined was due to its proximity to a wifi net extender. Is your setup near a router or extender by any chance? Joe.

Very nice! It's refreshing to see your thoughtful component selection and layout. I especially appreciate the fact your rig isn't stacked component on component like the Tower of Babel. Best, Joe.

Beautiful amp! Haven't seen or heard much from RSA in ages, which is a shame. Would've loved to see them incorporate a DAC into their portable amps. In fact, I've still got a lovely, little Tomahawk that was a constant travel companion for me for several years. And, is that a Moreplay I see...

The Crack-a-two-a is an exceptional amp. I contemplated modding my Speedballed Crack, but opted for the C2A and couldn't be more pleased. My upgrades included some top-shelf tubes and a pair of Clarity CSA caps. Sonic bliss!

Very neat builds! You'll really enjoy them. And the mainline is exceptional!

That's a tough question to answer; there are simply too many variables to consider. There's system configuration, personal preference, individual tube characteristics ... I can share with you my own experience. I purchased to Loki specifically to tailor the sound of my ESP950s, and it has...

Nice build! Really well thought through and executed! Joe.

Not surprising. There's not a lot of real estate inside the Crack envelope to accommodate them; they're large. Did you build a separate enclosure for them? Even with the extra room provided by BH on the Crack-a-two-a, I had to use my best packaging engineering skills. I did quite a bit of...

R.I.P @Geezer Rock 001

Do These Caps Make My Amp Look Big? I've been enjoying listening to my Crack-a-two-a in its stock form for the past few months, save for the installation of some very nice tubes. I purchased a pair of Clarity caps around the time I finished building the amp and just got around to fitting them...

Good list. I would add the Bottlehead Crack-a-two-a, a high-performing OTL tube amp for higher impedance headphones.

I also own a pair of ZMF Auteurs in Teak. They sound exceptional with both the Mainline and the Crack-a-two-a (C2A). The Auteurs pair extremely well with the C2A, which is an OTL amp. As for the Clears, they've given me some goosebump moments during listening sessions with the Mainline...