Pocket headphone amplifier advice ??

[jackinnj]

Originally posted by Dxvideo


Do you mean TPA6102 or 6120 If its TPA6120 then I know that IC already.

In fact I havent listened a Class D amp until now (but my shitty Philips mini CDP!) and I am not sure their quality.

http://focus.ti.com/lit/ds/symlink/tpa6102a2.pdf

You are listening to an IPOD through Apple Earbuds and criticizing the quality of a Class-D Amp??????

[markiemrboo]

Originally posted by jackinnj

You are listening to an IPOD through Apple Earbuds and criticizing the quality of a Class-D Amp??????

Eh?!!?

I have an Ultrasone DJ1 (64ohms and 103dB/1mW) and a Philips SHP805 (32ohms and 104dB/1mW)

[Nico Ras]

Originally posted by Dxvideo
You say;
"WARNING CAN PUT OUT SERIOUS VOLUME WICH CAN LEAD TO HEARING LOSS."

What kind of headphones you have? I was worrying about the output level of OPA134 that will be enough or not for my ear taste. But you say, it may be dangerous!

I am confused...

Hi Ozgur,
check out this thread. The headphone amp is based on Hiagra's design. I simulates very nicely. I am doing a PCB and will probably build it after New Year.

http://www.diyaudio.com/forums/showt...63#post1386863

[Dxvideo]

Originally posted by jackinnj


http://focus.ti.com/lit/ds/symlink/tpa6102a2.pdf

You are listening to an IPOD through Apple Earbuds and criticizing the quality of a Class-D Amp??????

No I am not critizing the Class D amps. As mentioned; I havent listened a good Class D until now.. However a lot of cheap Chinese "thing" uses that kind of amplifiers. And I cannot say theyre "audiophile".
In the other hand; I have never listened Earbuds and generally doesnt listen iPod via anykind of headphones. Because I dont like its sound even with my other headphones. However, iMod guy (Vinnie) says a lot of good thinks about modding on iPod. So Id like to try a iMod. And after this modding I'll need a portable amplifier. In fact I have designed a Class A headphone amplifier in the past. However it sucks a lot of current so not suitable for this position.

Anyway; I think its better to be not-prejudged about the persons...

Originally posted by Nico Ras


Hi Ozgur,
check out this thread. The headphone amp is based on Hiagra's design. I simulates very nicely. I am doing a PCB and will probably build it after New Year.

http://www.diyaudio.com/forums/showt...63#post1386863

Ok my friend... Thanks.. And happy new year..

[jackinnj]

Originally posted by Dxvideo



Anyway; I think its better to be not-prejudged about the persons...

I was pulling your leg ... how does that translate?

TI also has a very, very high quality Class AB headphone amplifiers but most of these require a microprocessor/codec.

The Class-D devices are very efficient so you get 30% more output power from the same set of batteries.

[Dxvideo]

So you say there is a misunderstanding? Or I am still misunderstading you

Anyway,
I will buy a M3 kit for 30$... I guess best is tested!

Thx...

AND HAPPY NEW YEAR...