On Tue, 14 Oct 2008 21:06:34 +0100, tony sayer
wrote:

In article , Eeyore rabbitsfriendsandrel
scribeth thus


tony sayer wrote:

Eeyore scribeth thus
tony sayer wrote:
Eeyore scribeth thus
tony sayer wrote:

I reckon you'd be well pushed to improve of the Audiolab excellent
amplifier even at 20 years old)..

You must be living in a very weird world then. Its design is utterly
'agricultural' by today's standards. It's barely any better than a decent
semiconductor manufacturer's application note of that era. Frankly it's a
joke. Plus any one you can find will need total re-capping of the
electrolytics.

Graham (pro-audio designer with 37 yrs experience)

Bet you'd be hard pressed to tell one apart in a listening test!..

No perhaps not.. their prolly too neutral for your linking;!...

If you want neutral you need one of my ultra-performance mosfet designs. The
actual'amp block' has a THD+N of 0.0008% @ 1 kHz (SINAD -103dB) measured on
an AP
with a residual THD+N of 0.0007% ! That 'back calculates' to a true THD of
0.0004%
(SINAD -108dB). The response is VERY flat too. About -0.2dB @ 10 Hz and 20kHz
IIRC.

Oh and I designed it about 19 years ago.

Sadly, the figure is degraded by the op-amp front end (5532s) ! But I could
replace these with LME49720s instead.

Humm...

I Wonder how may pro recording bits of gear are around with 5532's..

Just about most of it in current use.


Are they at all similar to 5534's? Sure I used them in a phono
pre-amp in the 80's, copied out of a R. A. Penfold book.


Marky P.