On Jul 24, 7:15*am, Al Moodie wrote:
Hi,

Not sure if this is the correct forum, but it is the only one I am
familiar with.

I have an old audio system, Technics SU 8022 stereo amp attached to
large quaulity technics speakers, works fine.
Have a Sony Bravia LCD TV which has an audio output socket which I use
for headphones occasionally.
Does it make sense to attempt to connect the TV's audio output to the
Technics amp to get better sound quality.

Sony TV Audio out:
500mVrms (100% modulation)
More than 1 Vrms at max volume setting
Impedance 47k ohms

Technics amp input:
Phono 2.5mV 47k ohm
Aux 150mV 27k ohm

I assume I will need some kind of voltage/impedance matching between
the two units.

Al Moodie.

I'm doing the same as you. I'm using a 55" LG set, Headphone out to an
old (1985) Technics receiver and a pair of JBL speakers. I also have a
solid state relay to turn on the receiver using one of the USB inputs
of the TV to get the 5 Volts to run the SSR. The only 'quirk' is the
LG will not allow balance, bass or treble adjustments when the
headphone jack is used. I tried changing settings without the
headphone jack and as soon as the headphone connector is used it
resets center.

G²