2. amps-preamps
  3. 149455-132962

The better amp?

http://www.ti.com/product/OPA2134 OR http://www.ti.com/product/TPA6120A2/description the TPA6120A2 can be used fully diferential(balanced) to a studio monitor or amp, just like the OPA2134, but which has a better sound quality? the TPA6120A2 is in a Roland Mobile UA USB interface(https://www.roland.com/global/products/mobile_ua/) with the DAC AKM AK4414EQ, and the OPA2134 in the Emotiva DAC pre-amp XDA1(https://darko.audio/2011/08/emotiva-xda-1-dac/) with the DAC Analog devices AD1955. thanks...
joser9616
mijostyn's avatar
mijostyn
8,570 posts
 
joser, god knows. With any op amp it depends on the application. Most audio aficionados are going to say discrete components are always best. All I can tell you is that you will have to listen to examples and decide on your own.   
joser9616 OP
29 posts
 
sorry, what means discrete in amps? thanks
joser9616 OP
29 posts
 
Ok, I already read it, but according to what I read in the description of Texas Instruments for the TPA6120A2 is this: 

In applications requiring a high-power output, very high fidelity headphone amplifier, the TPA6120A2 replaces a costly discrete design and allows music, not the amplifier, to be heard. The TPA6120A2’s current-feedback AB amplifier architecture delivers high bandwidth, extremely low noise, and up to 128dB of dynamic range.

Three key features make current-feedback amplifiers outstanding for audio. The first feature is the high slew rate that prevents odd order distortion anomalies. The second feature is current-on-demand at the output that enables the amplifier to respond quickly and linearly when necessary without risk of output distortion. When large amounts of output power are suddenly needed, the amplifier can respond extremely quickly without raising the noise floor of the system and degrading the signal-to-noise ratio. The third feature is the gain-independent frequency response that allows the full bandwidth of the amplifier to be used over a wide range of gain settings.


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