For a 16 ohm load, does this K5 amp output 1.7w per channel or 1.7w combined total? (TPA6120A2 specs.)   Using this to power those bassy cans, JVC HA-SZ2000  

It would be nice to see cans with high power handling, high-excursion drivers....but HBB you're right....a SZ2000 w/ 55x pads and plenty of amp behind them already feels like an SPL car! Maybe a mid 150's car when these things are pushed to the limit and bottom out. Anything more than that just...

Proud new owner of these HA-SZ2000 cans. Really enjoying them    I'm coming from a background of working in car audio where we had an Astro van built with (16) 15" Soundstream SPL subs tuned around 35hz and doing around 159-160db sealed on the dash....way back in 1998!   In those days, the...

"Output power into a 32Ω load: over 500mW"   ....Is this per channel or total output power?

Good news....   Found the service manual for the X here:   http://averbouch.biz/wp-content/uploads/SONY_NWZ-X1000_Service_Manual.pdf     Looks like the battery can be replaced but it doesn't look like the back cover will fare well from prying it off..

He also has this one on Ebay....looks like his top of the line DAC with the AK4399 chip: http://www.ebay.com/itm/Finished-DAC9-decoder-AK4399-192khz-Coaxial-optical-SOLO-headphone-2-R-core-/130893606251?pt=US_Home_Audio_Amplifiers_Preamps&hash=item1e79dded6b Not sure what the AK4399 sounds...

You have to send to Sony for repair or you can order the battery and try to open & replace it yourself (of which I have no idea how to get it open). This is the response I got from them: Thank you for contacting Sony Parts. Great news! We have located the product(s) you were looking for...

Can it do USB audio out? I would get the Xperia Z in a heartbeat over Galaxy S3 if it can.. The Z has some pretty good specs (minus the DAC)

Bump... Anyone have any thoughts on this amp? Looks like it has ST MC33078 op-amps Worth ~$175 USD? :confused:

Found info. on diyaudio.com about his E5 "class A" amp but did not find info. on this one...   Would be nice to know if this looks like a good board and if it is a true class A..

Found this on Ebay...looks interesting.   http://www.ebay.com/itm/Finished-High-quality-base-on-A1-Headphone-AMP-Amplifier-full-aluminum-chassis-/140893067806?pt=US_Amplifier_Parts_Components&hash=item20cde19a1e   Anyone own or listen to it?   

Does anyone know the DAC used in the latest Xperia phones?   I'm interested in the Xperia Acro S   I see that it has USB tethering....so will it also allow bypass of the internal DAC with an external one?     Anyone compared these newer Xperia phones with the Galaxy S3 GT-I9300 or...

If you get it on Ebay for a good price, it's worth it but this is a very basic amp....don't expect it to drive difficult cans or perform miracles   It sounds on par with my old MSeedLabs Faith amp, but with much less power

If they could possibly implement the P4 amp section with a switchable USB to battery power (external or internal pack) it would be even better.   The USB-powered amp section is limited by voltage....which would also limit portability if you wanted to use it as just an amp without the PC  ...

Most would agree the P4 is their best-sounding amp. If it had the P4 amp section with a switchable internal rechargeable battery or external battery. pack that would be the great   Switched to battery power it could have the extra voltage for the stronger amp section. If the voltage for the...