HA INFO mini-ear Headphone Amplifier
http://www.ebay.com/itm/HA-INFO-mini-ear-Headphone-Amplifier-TI-TPA6120A2-for-HIFI-headphones-/380461843386
cheaper version: http://www.ebay.com/itm/SMSL-sApII-TPA6120A2-Big-Power-High-Fidelity-Stereo-Headphone-Amplifier-/271108319467?pt=US_Amplifier_Parts_Components&hash=item3f1f50a8eb
• Output power: 150mw / 250Ω, 300mW / 120Ω, 1000mw / 32Ω
They use the same opamp as Fiio E9 and some Asus mid-fi sound cards. Both seem quite powerful to run even 600Ω headphones. They are half the price of a new Fiio E9, just wondering where did they cut corners to get the price this low?
There's also one (small) review of the S.M.S.L amp here on head-fi: http://www.head-fi.org/products/smsl-sapii-tpa6120a2-big-power-high-fidelity-stereo-headphone-amplifier-golden/reviews
http://www.ebay.com/itm/HA-INFO-mini-ear-Headphone-Amplifier-TI-TPA6120A2-for-HIFI-headphones-/380461843386
- [size=12pt]6.35mm headphone socket for 16-600Ω Hi-Fi headphones[/size]
- [size=12pt]Power output: 1000MW ( 32 ohms ), 300MW ( 120 Ω), 150MW ( 250 ohms )[/size]
SMSL sApII TPA6120A2 Headphone Amplifier
http://www.ebay.com/itm/261131930434cheaper version: http://www.ebay.com/itm/SMSL-sApII-TPA6120A2-Big-Power-High-Fidelity-Stereo-Headphone-Amplifier-/271108319467?pt=US_Amplifier_Parts_Components&hash=item3f1f50a8eb
• Output power: 150mw / 250Ω, 300mW / 120Ω, 1000mw / 32Ω
They use the same opamp as Fiio E9 and some Asus mid-fi sound cards. Both seem quite powerful to run even 600Ω headphones. They are half the price of a new Fiio E9, just wondering where did they cut corners to get the price this low?
There's also one (small) review of the S.M.S.L amp here on head-fi: http://www.head-fi.org/products/smsl-sapii-tpa6120a2-big-power-high-fidelity-stereo-headphone-amplifier-golden/reviews