1. thats really cool, and good write up. btw the first link does not work.

Posted at 11:05PM on Sep 16th 2006 by Elliott

2. First link not working.

Ya, thats a nice little tube amp. I think the SOHA (also on that site) sounds better though. Easier to build too.

Posted at 11:17PM on Sep 16th 2006 by matt

3. The MJ clone isn't a bad headphone amp... but pretty far behind the state of the art in DIY work. Since then a whole raft of other tube headamps have been developed... some with superior performance and many that are much easier to build.

I think the only that has received a full write-up is the SOHA (http://headwize.com/projects/cavalli2_prj.php) which is a low-voltage hybrid design that IIRC is not as well thought of as the MJ. But there are several other new designs out there.... dig around headwize forums if you want more info.

Also here is the original cmoy headamp link: http://headwize.com/projects/showfile.php?file=cmoy2_prj.htm . Not a bad amp for how simple/cheap it is but mine doesn't get much use since I built a PIMETA a few years back.

Posted at 2:07AM on Sep 17th 2006 by blip

4. well that's just great. apparently my personal site has broken. augh.Looks like my registrar died.I switched the link over to my backup domain. All is good(ish) for the moment.

Posted at 7:21AM on Sep 17th 2006 by will o'brien

5. oh please, take it one step further & make a tube based ipod dock! what is there is already great!

but i once put my ipod thru my friends old tube stereo system & was amazed @ the warmth of sound!

Posted at 9:55AM on Sep 17th 2006 by giveaphuk

6. Tube? TUBE??!! That amp thing has no internet connection at all!

Posted at 11:42AM on Sep 17th 2006 by steve

7. Nothing like the warm sound of a tube amp. Solid state's all fraught with odd-order harmonics.

Posted at 12:54PM on Sep 17th 2006 by pocketbrain

8. HAHA, I get steves post, because the internet is a series of tubes, but really, nice work on the amp, good to see simple tube amps for diy work.

Posted at 2:13PM on Sep 17th 2006 by David

9. realy good idea never seen this before think i trie my hand at this one . nice work hackaday

Posted at 2:14PM on Sep 17th 2006 by steve

10. I highly recomend building a headphone amp. My first was a CMoy which I still use as a portable amp. My newest is the SOHA that blip posted and I highly recomend it. Combined with my Sennheiser HD555's, its probably the best sound I've ever heard (granted there are MUCH better and MUCH more expensive setups out there, I just don't have access to them yet).

Posted at 1:29PM on Sep 18th 2006 by Citizen Insane

11. Does anyone know if this unit could double as a phono pre-amp, like the one produced by bellari for $225. IF so this would be an amazing and more economically viable alternative.

Posted at 3:13PM on Sep 19th 2006 by GSD

12. Forgive my ignorance, but why use a headphone amp at all?

What's wrong with the signal source?

Posted at 5:38PM on Nov 13th 2006 by s0crates82