DAO Follower vs F3 Headphone Amp - Page 2

Melon Head · 30th October 2009, 11:52 AM

LTSPICE FFT results

Not Bad!!!!!!!!!!

EUVL · 30th October 2009, 04:13 PM

It takes less time to build than to simulate.
I'd rather spend the time to listen.....

Patrick

Melon Head · 30th October 2009, 08:08 PM

Yes I would too.
But I am looking after a new baby, So all I can do at the moment is sit on the computer.

EUVL · 10th November 2009, 05:45 PM

I have been asked about the distortion performance of the TCS version vs DAO with original CCS. Apparently simulation gives better results with the CCS than the TCS.

The idea of the TCS is to modulate the lower current source so as to provide more current drive, as well as cancel most of the even harmonics (when done right). The circuit values published were NOT based on simulations, but actual measurement of devices (LU1014s) under near-working conditions (bias, Vds, temp, etc.).

But if you would take Steen's well documented review, then there is little to choose between the two. So I would only say, build both and decide for yourself which one suits you better.

Patrick

30th October 2009, 08:08 PM	#13
Melon Head Formerly Thanh1973 Join Date: Nov 2006	Yes I would too. But I am looking after a new baby, So all I can do at the moment is sit on the computer. __________________ "No, this sucker's electrical, but I need a nuclear reaction to generate the 1.21 gigawatts of electricity I need."

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30th October 2009, 04:13 PM	#12
EUVL diyAudio Member Join Date: Oct 2003	It takes less time to build than to simulate. I'd rather spend the time to listen..... Patrick

10th November 2009, 05:45 PM	#14
EUVL diyAudio Member Join Date: Oct 2003	I have been asked about the distortion performance of the TCS version vs DAO with original CCS. Apparently simulation gives better results with the CCS than the TCS. The idea of the TCS is to modulate the lower current source so as to provide more current drive, as well as cancel most of the even harmonics (when done right). The circuit values published were NOT based on simulations, but actual measurement of devices (LU1014s) under near-working conditions (bias, Vds, temp, etc.). But if you would take Steen's well documented review, then there is little to choose between the two. So I would only say, build both and decide for yourself which one suits you better. Patrick

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