My O2 sounds so much better with my PS500e headphones when I use Lithium Ion batteries in it.  I'm sure it's an impedance thang.   Comments?   Anyone know how to modify this beiatch to charge lithium instead of old ****ty nm-hydride batteries.   If you do please share.  I know I can't...

I've been searching for like a full week, and I still can not find a good amp for around 158 euro/200 dollar. I want to use it for my SHR840 (and maybe sometimes for my se215), I hope you guys can help me out!   Greetz!

MacBook Pro (Retina, 15-inch, Early 2013) > Audirvana Plus > Sennheiser HD-598 phones.   I'm deciding between: >Magni2 Uber / Modi2 Uber >Vali / Modi2 Uber >O2 / ODAC >Magni2 Uber / ODAC etc..   Which would pair best with my HD598s?   Right now the Magni2 Uber / Modi2 Uber seems like...

I'm looking to upgrade my headphones and currently leaning toward a HiFiMan HE-500/JDS Labs Objective2 combination (or possibly Sennheiser HD650).  Any opinions on this combo?  My source would be an iPod Classic (5th gen) or possibly a PC or tablet.   I see that when ordering an Objective2...

I'm currently using the Fiio e10k. I see that the O2 amp is on sale and I'm considering picking one up in the near future.   To use the dac from the e10k, must I connect the line out (3.5mm) to the input (3.5mm) on the O2 amp? Will this bypass the amp in the e10k?

I am planning on getting some 600 ohm headphones (probably the dt880 or 990), mainly for computer use, and am planning on buying a new soundcard, and desktop amp. I don't want to 'waste' the headphones so I want to drive them properly and well(enough). I watch movies, play games, listen to...

i'm looking to buy my first amp, most likely a cmoy as i don't want to spend too much money. i just have some questions that hopefully those of you who have more expertise in amps and technical matters can tell me. i'm looking at 3 different cmoys, the jds labs cmoybb 2.03, the biosciencegeek...

I have a question regarding the possibility and practicality of using the JDS Labs O2 and with the E70K. Is it possible? In your opinion would it sound good? I would be using Grado SR80i's for the time being, but that is going to change in the near future. Any advice would be most appreciated.

I'm on a budget but want to get some Senn HD600's. I'm not so nieve to believe I don't need an amp with a little power, but I'm realistic to know I can't spend more than $200 on an amp. I currently have a Fiio E10, but would this be enough. I know Fiio is cheap so how about the new E12 or the...

Hey everyone, I'm looking for an amplifier to power my Senn HD580's. I would like to keep the price under $150 if it's possible. It doesn't really matter to me if the amp is portable or not, I'll be using it at my desk. I would like to have one with a built in DAC, but it isn't a huge deal to me...

So I developed a passion for listening to high quality music. My current headphone is the Sennheiser HD555. I play all of my music out of my computer so at the moment I use a 6.3mm to 3.5mm adaptor I believe to plug it into my PC (am i losing quality?). Any music I download is strictly WAV...

Hey guys, I have the RS1i headphones......what would be a good sounding set-up for these and not break the bank.   Need a nice MP3 & Flac player DAC and portable amp.   Need a few suggestions.....thanks

have sennheiser hd 600 and looking to buy mad dog headphone which amp will drive both headphones.

Hi everyone, I didn't find an intro section so a little about myself which may help you guys steer me in the right direction.   I am into car audio and completed my first build about a year ago, I did full audio in a 2010 F150, Boston Acoustics SR50 components, SR80 coaxials, Rockford...

Gentlemen! I've been reading the forums for months regarding amps, dacs, k702/q701, and k550s. I have this illogical devotion to AKG, due to my previous AKG headphones, and have trouble deciding between two different type of headphones. I recently received a cash bonus from work so I have the...

I just bought the Shure srh840 on ebay.  I am extremely new to the world of quality sound, and I would like your opinions.  I have attempted to do a lot of research, mostly on this site, and I have found myself completely lost.  I would like any recommendations for how to maximize my sound...

Howdy, new guy here. I'm a media nut. I love my music above all, movies are a close second and games are fun when I'm bored. I love rock and hip hop type genres. Movies and games in my opinion have very similar sound profiles (not sure if used right). I want a headphone set that can handle what...

I currently have a FiiO E7 which I use as a DAC+Amp for my Audio-Technica M50's (even though an amp isn't really necessary on them).   I'm about to get a better pair of headphones and likely land on a DT 880 (250 ohm), DT 990 (250ohm), or HD 650. From what I understand my E7 won't be...

Hello all. I'm looking to buy a mid budget amp ($150-250) for my AKG K702. The source is a Creative Sound Blaster X-Fi Titanium (non-HD version), and later a Creative Sound Blaster ZxR. I'm currently quite satisfied with my setup on its own, but would like something to extend the bass a bit...

About to buy one of these guys, either the O2+ODAC or Schiit Modi/Magni.   Leaning towards Schiit because of the DC plug being on the back and price being somewhat lower. Can anyone tell me whether one combo would be better over the other for reasons that I didn't list above?

So I've been lurking on this site for about a two years, and you guys helped me make my first jump into head-fi (my ears say thanks, but my brain and wallet don't, haha). I purchased Klipsch Image S4's a couple of summers ago and I've been pretty pleased with them.  Now, I am looking to get a...

Firstly I'm not sure where this post is suppose to go so if its in the wrong place I apologize.   So I've begun to start my dive into better audio and I've chosen my first set of what I would consider "real" headphones. I've chosen to go with the AKG K701's. I've read many reviews and it...

Hi,   I have liked headphones for most of my life but always had cheap models. I finally got my taste of good earphones a few months ago with an entry level Grado and B&W P5. I have now decided to invest in an amplifier and a DAC . currently using NuForce portable USB amp.   Problem is -...

So at last my first post.   Here I come:   I got a pair of Grado 225i and now I want a desktop amp/dac combo for them. I have "reduced" my list to this:   JDL O2/ODAC Schiit M+M Schiit Asgard 2 + Modi  HRT Headsreamer     I am looking for:   Something to match my...

What headphones would you recommend for dance, trance, hardcore, synthpop....etc. If money wasn't an issue at all?   I often hear the term that the headphone is "too slow" for dance music. So what high end "fast headphones" would you recommend?