Crystal cMoy Free Form Headphone Amplifier

[Adam]

My brother sent me the link to this DIY headphone amp instructions page, and I thought that it was very cool! That's one attractive amp, if you ask me. Granted, I'll never make it , but maybe someone here with better skills and more motivation might want to give it a try.

 

[Adam]

Oops - probably should have put this in the DIY Corner.

Would one of the mods please move it? Thanks!

 

[jcl]

That's pretty cool looking. Nice headphones too!

 

[DS-21]

IMO, the main reason to get a headphone amp is to add a defeatable crossfeed circuit.

This one doesn't have a crossfeed, so for most headphones one is unlikely to hear a difference from a component's headphone jack. (For some that need more voltage than the typical iDevice will give them, such as Senn HD-580/600/650, it will still be an improvement.)

Which reminds me, I should probably take pictures of of HeadRoom Portable Micro ("2007" model, though made in 2008) and put it in the classifieds. I haven't much used it since I got the 2010 model of same. The difference between the 2007 and 2010 is that the 2010 which only runs on its internal Li-ion batteries and has a small charger that only charges the batteries (doesn't run the amp). The 2007 one has a PS brick bigger than the amp, and is switchable between AC and two 9V cells.

 

[cpp]

DS-21 I have the Headroom Micro the non-portable version which I use with my Senn HD600, nice combo.

People should also consider the headphone impedance when selecting a headphone amp and should consider the source's impedance as well.