"Jim Lesurf" wrote in message
...
In article , Keith G
wrote:

"Jim Lesurf" wrote in message
...
[big snip]


That's all very interesting but a little way wide of the point - forget
expensive, 'laser cut' options, my curiosity here is that in an amp
costing only 60 quid (and which includes 6 inputs, headphone socket,
phono stage as well as all the necessary ADC/DAC circuitry, power
supply &c.) there is a very useful *digital* (ie cheap) way of
controlling volume/treble/bass/balance/muting/'loudness' with some of
the major functions (not all) available on the (included) remote
control.

Yes, I'd agree. I was just pointing out that some people have an aversion
to anything 'digital', and that a 'digital attenuator' may have flaws, so
should assessed with due care. But the silicon for one is cheap, and
should
be able to give good results if well done.


*Stop press*

I have detected a little artifact in the sound from the Argos stuff this
morning - not audible in normal use (even right up to the speaker), but when
playing back *recordings* and trying to record them with a little mic
there's a little 'whumpa whumpa whumpa' going on at about once every second
(or so) at quite a low level....???

It's here at about 600K:

http://www.apah69.dsl.pipex.com/show/wumpa.mp3


Although the mic is a bit suspect I think I have also heard it when playing
back recordings from my PVR but I couldn't replicate it just now....???