Quote: I removed cap from soundcard, it's left outputs -5.5mV and right 8.5mV DC. Cmoy output has 0.x mV DC offset.   My cmoy is 2xAD8610, and ground is TLE2426, AD8610, BUF634 as here: http://tangentsoft.net/elec/bitmaps/vgrounds/gnd-channel.png   I'm not sure removing cmoy cap...

Quote: It's not really that expensive compared to other caps. It's only 5$ each.   I calculated (http://tangentsoft.net/audio/input-cap.html chapter "Bass roll-off") that I have acceptable bass with my current ~0.4uF Wima MKP10. I'm more concerned about high frequency and phase...

I'm considering upgrading input cap on cmoy. I have found some 10uF Vishay Roederstein MKP1839 polypropylenes ( http://www.vishay.com/docs/26022/26022.pdf ). At page 5 it seems 10uF 160Vdc is too much? From that datasheet I understand that smaller cap work better on higher frequencies. What...

Hello, I just soldered 2x LM4562MA chips to ESI Juli@ but I'm not happy There's less detail, no kick, soundstage is not as good as it was. It's veiled and no detail. And balance does not work any more If I play track with only left or only right channel then it's not mono. If I did...

Quote: Originally Posted by Cauhtemoc A crossfeed can be used for a balanced setup as well, you only need to use two. I believe it will be worse than using one crossfeed with not balanced amp. It's very hard to build perfectly matched crossfeeds.

hi, there is so many DAC's. Which should I build for β22 amp? Important thing to consider is that I will build 3 board configuration and not balanced. Thats because I will need to use passive crossfeed filter(Meier Audio Corda Cross-1). What dac can do good job with crossfeed? Price should be...

I upgraded my soundcard from av710 to ESI juli@ and It's way too harsh. I have used av710->cmoy(2227PA)->HD600 and it was OK. Now with juli@ it's too harsh. Violins and piano is too bad. With 2134 highs are what I need but bass is too bad. Some clarity and still warmth in mid sounds would be...

How are your skills? I'll build http://www.amb.org/audio/beta22/ in this year. Reading thread at headwise (look at first link, there'i url to thread) It sounds amazing. But it's not really for beginners

If you have money I'd get 2134 and 2227PA. With senn hd600 2227PA gives more clarity.

Quote: Originally Posted by slwiser Now that you have a USB Audiophile just place a DAC1 or DA10 after it with an amplifier inline feeding you headphones and you will hear something quite different. Thats why I bought it - in future I can use that good coax But still...really...

It's no good. I'm totally disappointed. I want my chaintech av710 back AP usb -> sennheiser hd600 AP usb -> corda cross1 (RCA link)-> Cmoy opa2227P -> senn hd600 both are no good, second is better NONE of these combinations is musical. First thing I notice is higs are not real, vocals...

Zen Vision :M Audio&Video 4-Pole 3.5mm pinouts http://www.anythingbutipod.com/archi...mm-pinouts.php Its just ordinary 3.5mm with sleeve separated to use with video. If you turn video off then shorting video with ground will not do any harm(if you use 3-pole jack)? ?? EDIT: Tried out...

http://www.linuxquestions.org/questi...76#post2342976 Tried yesterday but didn't get it work, I believe I works, just have to install it properly. EDIT: Got it work under debian with latest amarok from svn. configure it --with-libmtp (./configure --enable-debug=full --prefix=/usr...

hi, I'm using debian (ubuntu is built on top of that). Newer tried usb dac but there are cards that work great. For music look at http://alsa-project.org/alsa-doc/ and search your card. Games tend to use oss, not alsa. So my chaintech av-710 don't work in games (quake, ET) and there are bugs...

Quote: Originally Posted by bigshot I'm saying it doesn't make a lick of difference for listening to music in your home. See ya Steve ..just don't like that attitude, whats wrong with listening at home? I believe I can hear more at nice dark room, closed eyes at home than in...

is there any "optimal" damping factor? how to calculate it?

Why? I think I know but can someone put it in the words? If I remove output resistors(or foam from phones) then sound is fast and detailed but quality is bad. Sound is not controlled, soundstage is worse, and not full. Some mid-bass is also lost. Made my test with cmoy(opa2227P) and senn. hd600

thanx, You all made my hd 600 sound twice as good as they were!

I own hd600 and since I bought them I managed to live year not looking at other phones Now I want to know what are these "professional" phones people talk about. These phones that make instruments as they are in real life but are not audiophile phones. What do you think?

Nice news. Interesting how it sounds compared to m^3 or some other really good amp...with sennheiser hd600.

ordered 2227. I'll try it out and say what I think. Then we know what to try out next thx for replies

2107 costs 4X more than 2227. I don't know .... take 2107 or not. what is the main difference between them. As I see 2107 has less bandwidth and more slew rate. What about music?

Quote: Originally Posted by ozshadow Try a 2227 or a 2107. If the 2134 is like the 2132, the tubby bass kinda overrides the mids too much for me. these are just pop-in replacements? I'm not sure

I want to replace chip in my cmoy. I like opa2134 but I want little more mids or clear them up for acoustic and live music. chaintech av710 -> corda crossfeed -> cmoy -> hd600 thx

Quote: Originally Posted by MASantos the opamps used in the PInt are SOIC package. Thee are no a direct it to the protoboard holes but it can be done. Search for member sijosae and his headphone builds(they're in a different forum) He uses SMD components in protoboards. But the pint...