[varunkumar]

I have a phone galaxy s 2  it has good treble but less bass. I need the thump, deep bass, bass kick and i don't want to loose treble and wide sound stage they are very important. My Shure SE 530 is capable of that but not my phone. So planning get an external amp, any portable amp suggestions. How is CMOY?Found many configurations online with different Op Amps and Capacitors. I couldn't decide which is good for me. Help me guys.
 
 
Basically JRC 4556 Vs LM4562 Vs AD823. What is the best match for me. Thanks.
 

http://cgi.ebay.com/18V-CMOY-Grado-RA1-JRC4556-Headphone-Amplifier-Liq-/170653055922?pt=LH_DefaultDomain_0&hash=item27bbb6fbb2#ht_1526wt_1139

 
VS
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=190543178893&ssPageName=STRK:MEWAX:IT#ht_2783wt_1139
 
VS
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=230619619475&ssPageName=STRK:MEWAX:IT#ht_741wt_1139
 

 

[leo5111]

i have one of the 18 volt ones from that guy i like it has power to burn and seems to have made the bass of my shure 425,s more punchier..