Hello dear FiiO team,   Who could we contact for FirmWare improvement/additions (about translations/languages) in X3 player ?   There are several misuse of english wording, like "frequency" instead of "sample rate" or "sampling rate" (just an example). My native language is french, the...

I don't have the 'finished product' to show. Of course, like a lot of folks here, I have other projects like home made HP tube amps, speakers, various amps and tweaks ... The point here is a new project shared with the community ; in 1st instance I offered to Kipox to make this, because I can...

Compatible with :   asymetrical wiring   Sennheiser HD 25 II Sennheiser HD 25-1 II Sennheiser HD 25-13 II Sennheiser HD 25 Alu Sennheiser HD 25-C II   symetrical wiring   Sennheiser HD 25-SP II    

BTW, I won't charge as a commercial product !   We'll try to pay the actual cost of material + ~$10 max for manufacturing time, soldering wire, shipment ...   It's a personal project shared with the Head-Fi community.

Hello,   Did you find your replacement cable for Sennheiser HD-25.1 mk II ? In another thread we're building a project for a high grade custom cable. I'll make these cables for 40~50 € (so max. 60~75 US $ incl. shipping).  ...

Pour ceux que le projet pourrait intéresser, voici le menu : For those who might be interrested in the project, here are the data :     0,75~1,0 m Cable VIABLUE EPC-4 Silver @ 5 €/m * Material : 4 x (19 x 0,10 mm) Oxygen Free Copper 99,997% Silver plated * Double-shielding : OFC Silver...

Don't worry Benoit, if you're not in an urgent need, I'm offering to make these, just at the real cost. The time to get the parts, build them and send to anyone interested in the project

Bonjour Benoit, Hello there,   You can buy various cables on ebay, from $50 or more, for wire replacement/upgrading of your HD25-1-II. I'm looking forward to make these too, because nothing seems difficult and I see no part requiring a $50~200 budget ! AND, we're still looking for better...

Sure, IRL 510 are close to the best we can have (not for $$$$$), but keep care to Electromagnetic discharges (don't touch the pins).

Quote: Hi again Trazom,   I have some news ... I built a brand new headphone amp, like Bravo/Indeed/Muse (on a pcb, I chose every component) and I had a problem ... Apparently, the MOS-FETs are VERY sensitive to electrostatics, because of the FE (field effect transistors), so...

@trazom   BTW, what is the original tube ? With which part did you replace it ?

Hi trazom,   Changing your tube won't generally solve anything, unless you were using a dead tube or not designed for ... Did you check that the bias did not change ?   Maybe the problem comes from a single resistor, it may have burn or it's unsoldered. Could you send macro photos of...

A nice file with 7 pages of explained mods :   http://www.mediafire.com/?8hqhan3l9xtvvsq

Thanks folks for advices !   Trully, mine became "hot" when I changed the Mosfet, maybe it changed from ambient temp. +5°C to +25°C approx. ; even if I changed heatsinks from ~16°C/W to ~8°C/W... But I see here I should "relativize" what's warm and what's hot ;-)   I dunno for all of...

Hi everyone,   I'm a newbie here, so having newbies' questions ; maybe already been discussed thru the 107 pages ...? So, got this MHHA, mine is a copy of this just acceptable amp (like Bravo/Indeed/Muse ...).   Sure everyone here started the same tweaks, changing those VERY BAD parts...

I hope I could reply to this soon !   I've bought the "Indeed/Bravo" amp style, and I've been (not a little) disapointed. After a few upgrades - but it would need a lot - I'm starting a new, clean and quality drived project. I've recently found this forum where, apparently, a lot of folks...

Yes, we could replace rare & expansive 2SK310 by simple IRF510 ... but I've read that IRL510 (or IRL530) gives better results with expanded banwidth.   I've bought both and tried IRL510 then replaced 1000µF poor output caps by 2200µF Elna Silmic II and the 2 upgrades expand the higher...

BTW, in France we have SCR / Solen MKP caps (you may know the PB-MKP -FA / -FB / -FC series for XO filters). They are a good value for a low cost ; of course, the higher quality the higher price. Up to 110 µF or 200 µF.   Ex. 0,1 µF Polypropylene (630 V) @ 1,50 Eur 0,1 µF Polypropylene...

I completed the list. I share here the spreadsheet ; it's public so you can add comments (in red with your name). Of course all the parts are available in France and I can send you elsewhere (with the real postal fees, no margins from me).  ...

Hi Lehtinel, I'm starting this project too.   I can see, as a lot of dudes here, I have the "XR01" board bought on 8Audio ; the same can be found on eBay. After purchasing a miserably chinease low quality "Indeed/Muse/Bravo style" headphone amp, I started to upgrade it ; but finally, the...