oktapod
Head-Fier
- Joined
- Nov 1, 2009
- Posts
- 89
- Likes
- 5
Loving the HD800s, I am. Absolutely loving them.
Stay updated on Moon Audio at their sponsor profile on Head-Fi.
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Stay updated on Moon Audio at their sponsor profile on Head-Fi.
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Originally Posted by dannie01 /img/forum/go_quote.gif I bought in HK from F. Lo, the rich gentlemen and fellow in Head-fi. |
Originally Posted by woof37 /img/forum/go_quote.gif I am dying to get one of these B22 amps. Who makes them besides Rockhopper? I've seen (like Krmathis's) some that are just beautiful and apparently sound as such. |
Originally Posted by jc9394 /img/forum/go_quote.gif There are few DIYer will build them... |
Originally Posted by jaycalgary /img/forum/go_quote.gif HD800 sure do look a lot like a rip off of the Sony SA-5000 design. |
Originally Posted by dannie01 /img/forum/go_quote.gif The one I bought is built by naamanf and the below I copy and paste from Amb site: Balanced β22 by naamanf Showcased here is naamanf's tour de force rendition of the 4-channel β22 amplifier. It is a combination headphone amplifier, pre-amplifier and speaker power amplifier. The twin σ22 PSUs are located in a separate chassis. As of this writing, naamanf had built four of these, three of them with twin 3-pin XLR headphone output jacks, and one with a four-pin XLR. Par-Metal 20-series anodized aluminum cases are used, with front and rear panels custom fabricated and engraved by Front Panel Express. Inside, the build features Elna Silmic IIs and Nichicon Muse KZ, as well as Wima film and silver mica capacitors. The gain resistors and compensation capacitors are socketed and could be changed as needed. The volume control is a Twisted Pear Audio "Joshua Tree" relay-based stepped attenuator. The Joshua Tree boards are mounted on a special I/O board that naamanf designed, which also contains relays to select between the balanced and unbalanced inputs, as well as switch between headphone and preamp/speaker outputs. Bulgin vandal-resistant pushbuttons on the front panel activate these switching functions. |