Final Lab Music-6

Marcelo Gustavo · 19th December 2003, 08:17 PM

Anyone know what is exactly the IC power opamp used in the highly regarded Final Lab Music-6 amp?

lohk · 20th December 2003, 12:45 AM

It is the "widespread" view that it is the LM1875..

Nuuk · 20th December 2003, 08:38 AM

Quote:

It is the "widespread" view that it is the LM1875..

And as it has five pins, that would seem to be the logical conclusion.

Marcelo Gustavo · 22nd December 2003, 02:01 PM

After read the Stereophile review, I suspect tha the IC it is not the LM1875. The measurements show a large crossover distortion spikes.
TDA2050?

lohk · 22nd December 2003, 08:40 PM

Some links:
Convinced:
http://www.tnt-audio.com/ampli/47gaincard2_e.html
http://www.enjoythemusic.com/magazin.../finallabs.htm

Not convinced:
http://sound.westhost.com/madashell8.htm#final

Marcelo Gustavo · 23rd December 2003, 05:25 PM

Sorry,
but I can not read the inscriptions on the chips (even making a zoom of the picture, printig it and using a loupe).
You could take in consideration that booth, the TDA2050 and the LM1875, have nearly identical packaging.

All the people that say the Final Lab is using the LM1875, that I have asked the question, can´t confirm the info.

The Stereophile measurements on the power amp made me suspect that the IC is not a LM1875. The THD at high frequencies is too high as well the crossover distortion.

19th December 2003, 08:17 PM	#1
Marcelo Gustavo diyAudio Member Join Date: Dec 2003 Location: La Plata	Final Lab Music-6 Anyone know what is exactly the IC power opamp used in the highly regarded Final Lab Music-6 amp?

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20th December 2003, 12:45 AM	#2
lohk diyAudio Member Join Date: Apr 2001 Location: Austria, near Linz	It is the "widespread" view that it is the LM1875..

22nd December 2003, 02:01 PM	#4
Marcelo Gustavo diyAudio Member Join Date: Dec 2003 Location: La Plata	After read the Stereophile review, I suspect tha the IC it is not the LM1875. The measurements show a large crossover distortion spikes. TDA2050?

23rd December 2003, 05:25 PM	#6
Marcelo Gustavo diyAudio Member Join Date: Dec 2003 Location: La Plata	Sorry, but I can not read the inscriptions on the chips (even making a zoom of the picture, printig it and using a loupe). You could take in consideration that booth, the TDA2050 and the LM1875, have nearly identical packaging. All the people that say the Final Lab is using the LM1875, that I have asked the question, can´t confirm the info. The Stereophile measurements on the power amp made me suspect that the IC is not a LM1875. The THD at high frequencies is too high as well the crossover distortion.

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