In article , Pete Cross wrote:
As to the sound of different chips, I'm rather with Arnie on this one.
If the design is reasonably sound, and you get low distortion and
noise, then I don't think there would be any audible difference.

The LM4562's boast 20v/uS slew rate, the 5532's a measly 6v/uS ,

Erm.. I'm not sure what kind of music you listen to, or what speakers you
are using, but if I've estimated it correctly, 6v/microsec translates into
a power bandwidth of the order of 95kHz for +/-10V waveforms. :-)

google for lm4652 and there are a few people saying same as me, there's
more detail and bass drums stand out amongst bass lines,

How many recordings of bass drums give transients approaching
6v/microsecond with peak levels of less than 10V?

I'm afraid that if you read magazines, forums, etc you will see all kinds
of 'opinions' given - often contradictory.

FWIW rather than simply comparing raw 'slew rate' values I think it would
be better to take note of the load used (as this will have an effect on
the slew rate delivered) and the level of distortion for an audible HF
test signal of a kind which could be expected to arise in real use.

Slainte,

Jim

--
Electronics http://www.st-and.ac.uk/~www_pa/Scot...o/electron.htm
Audio Misc http://www.st-and.demon.co.uk/AudioMisc/index.html
Armstrong Audio http://www.st-and.demon.co.uk/Audio/armstrong.html
Barbirolli Soc. http://www.st-and.demon.co.uk/JBSoc/JBSoc.html