Simply the Best - LiveWave AMP

[Stee]

this amplifier have a very good sound
is modified from MCM 100 Watt Subwoofer Amplifier Module

http://www.mcmelectronics.com/product/50-6272
with big Sanken final stage
and 8x 4700uF/50V little capacitors on PSU

also using digital input DAC: 8 x TDA1543 in parallel
another lucky idea

http://www.diyfidelity.com.au/produc...products_id=41
modified without AD847 I/V converter and filter
+ 3uF capacitor output + potentiometer for volume adj

[fizzard]

Something looks very wrong with the amplifier schematic. Are you sure it's correct?

As far as the DAC goes NOS == NFG.

[Stee]

this lucky idea is use a good op-amp (fet inp)
like fully-differential one
takes current from supply

sound better of NAD YAMAHA and ROTEL

i have DENON 1500 series DAC...
this Australian TDA1543 NOS have "LiveWave"
like no other

[whoandcar]

Your are using a TL072 with a 43 Volt supply????

[CBS240]

[djk]

He didn't draw it correctly.

http://www.mcmelectronics.com/conten...ts/50-6272.pdf

[Stee]

there are transistor on supply just for enable circuit
two resistor made voltage shunt

also i have reduce NFB with a potentiometer
there is a little distorsion
but more and more armonics

[Stee]

see this modification

short the capacitor of voltage balance in NFB
and add 6X 4700uF capacitors on OUT

this solution expand your sound like a tube amp
because don't force the zero point on output
similar of transformer push-pull

next upgrade Ver. 3
fully complementary bipolar input...

[Stee]

from Rotel RB981
this will be the upgrade
on mirror stage

[Stee]

the traditional method to adjust automatically the dc offset outgoing from solid state audio amplifiers
is completely wrong from the point of view of the dynamic behaviour and integrity of musical timbre
because it adds compression emphasis to signal depending on the area described by the same

viceversa, the method of Free Run Mode®
allows through a decoupling of balanced capacitors
a proper transfer of information
and returns a natural sounding.