Quote: I've had mine for several years  now, originally with the AD8397 chip.  Tried the OP134's with the BUF634 buffers, and did not like as well. I rolled again. Presently have LM6171 chips and the BUF634. Also have the LME49710 chips., but can't remember if I tried them or not.  The...

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Quote: Originally Posted by nsx_23 I have the 8397s, BUF634 and I currently have LM4971s in the amp with the buf chips. What are some must-have op-amps? The AD8620? The XM5 + iPod Video via LO is working very well with my UE18s. The AD 8065 seems to be well thought of by...

Quote: Originally Posted by nsx_23 I plugged my HD650 into the Xm5 for fun, and it does struggle to drive it. Does it have the BUF 634 chips or the "Double Cat" (AD 8397) ?? Both put out quite a bit of current. I ordered mine with the AD8397, then started rolling a year later...

Quote: Originally Posted by swanlee Thought I's bump this since this forum is turning into the Ibasso forum. More people need to take a look at this amp, after buffers are installed and better opamps put in it competes well with anything out there. Add to it all the features it has and...

Quote: Originally Posted by paara There is no option "I DON'T OWN either of these headphones, and I HAVE NOT TRIED either, but I still want to press something" Same here Probably can't afford either one (sour grapes)

Quote: Originally Posted by cck5 no one has an opinion on an amp they like or recommend? Of the 2 amps offered, I can Rolled several op-amps thru it only can say that I _almost_ bought the Little Dot Mk1. The Mk1+ was in the works and they were waiting for the 1+. Practical...

Quote: Originally Posted by BASGTA I did however say that when it's in my pocket it seems to loosen up. By that I don't mean that it'll get loose in a few hours or a day or two, it'll loosen up in a few minutes. I take two buses to work, it takes about 40 - 45 minutes to get there and...

Quote: Originally Posted by HeadphoneAddict The XM5 DAC with Burr Brown Japan PCM2702 (like the 3MOVE) is better than most PC headphone out jacks. It is pretty good, but just a little behind the DAC in the Pico, Micro DAC, D10 or Duet. So, it isn't worth amping most PC or laptop...

Quote: Originally Posted by swanlee I love my XM5 but I have a question for those that use it as a DAC, if the amp section sounds a lot better than the DAC section why not just use the headphone out of your pc and run it through the amp section instead of using the DAC feature through...

Quote: Originally Posted by oddity Which is the better deal?: HeadRoom AirHead OR HeadRoom BitHead I need honest opinions on this, any advice would be really appreciated. P.S. If you don't like either of them, please don't list other amps, thx. Haven't heard...

Quote: Originally Posted by HeadphoneAddict The XM5 DAC with Burr Brown Japan PCM2702 (like the 3MOVE) is better than most PC headphone out jacks. It is pretty good, but just a little behind the DAC in the Pico, Micro DAC, D10 or Duet. So, it isn't worth amping most PC or laptop...

Quote: Originally Posted by talan7 I'm unfamiliar with a DAC, I'm assuming it could be used portably. Could I do line out from my ipod to usb of XM5 as portable? The DAC function would be for use by your PC/desktop instead of the computer's built-in soundcard. You would use the...

Quote: Originally Posted by CooLy_oNE I really interested and curious about the AKGs....are they really good..since the price is very in the budget also.... I thought about getting AKG and XM5...how about it?but XM5..i dont like the look of it... I have a pair of AKG-240S...2+...

Quote: Originally Posted by Libertad Bump this amp needs more attension 1.2 watts in RMS is unheard of in a portable amp! Especially since the battery is 9 volts and 250 MaHr. Probably rain mighty quick if it's connected to an 8 ohm (even 16 ohm) speaker system. My Microshar...

Quote: Originally Posted by ciarla Im currently burning the amp, its been on for a day. so far the sound quality is extremly good. and i checked the manual, and even ther it says 1200mW per channel. so im thinking its correct. i dont have a headphone strong enough to test 1.2 W, but i...

Well, I can vouch for the XM-5. Had mine since July '08, and am very happy with it. (however, my only other one was a Microshar 107B..at $80) Mine came with the AD 8397, and will drive just about anything very well. I've played with the OP 134's and settled on the AD 6171 for the time...

Quote: Originally Posted by Jolly Bodger C'mon I need help here I know nothing about portable Amps and DACs - Why else would I have bought a Xmod!!! JB Well...many here have bought the Practical Devices XM-5. I like mine, and there have been several op-amp flips done. Mine...

Quote: Originally Posted by rock&rollfrenchfries penguinamp vs e5 vs cmoy. and recommend anything else in the under 100 range please. sound quality is of utmost importance. i will deal with portability (but it has to be portable) and convenience (battery configuration and chargability...

Quote: Originally Posted by Keppel When I opened my XM5, it was dead easy. When I reassembled it, it was dead easy. I'd have to agree with Harv regarding simplicity. I'm a very simple person. (I didn't open it to change anything, just to look at it. I may open mine again to look at it...

[QUOTE=audiophonicshz; The build quality left a bit to be desired, especially for the price, but I guess thats the case with most portable amps. I am speaking about the internals, as I immediately opened it up to check out the opamps buffers. Also the way everything fit together was a bit...

Quote: Originally Posted by swanlee I think the AD8065 improves performance more than that just by the elimination of distortion. The Stock opamps clip and distort even during normal volume and it was starting to get quite distracting for me. Hmmmm...my XM-5 came with the AD 8397...

Quote: Originally Posted by a_tumiwa does xm5 good paired with dt770/250 or dt880??? I was curious about that, too, and I may upgrade tp the DT880's one day. I talked to James at PD about it, and decided to get the AD8397 chip, but the BUF634 and your choice of driver chip may...

Quote: Originally Posted by morfic audiophonicshz: If you ever find anything out about the DT880/600 on XM5, let me know. DT880, K702 and HD600 are all on my want list, if i could do 600 instead of 250 on the DT880 before i have a desktop amp, it would be most interesting. Even...