No “Audiophile BS” here. Inside my headphone amp.

[Tony1963]

Just well thought out, beautifully created, neat electronics.



That’s the inside of my Avondale HLZ headphone amp, bought secondhand about six years ago, powered by a home built PSU.

[GiantCardboardPlato]

AH CRAP, when you took the lid off you let out the high fidelity xenon atmosphere that the circuit board is cosseted in. The greater mass/density of the xenon gas means the resistors help stabilise impedance and so you get sparklier highs, which also gives you clear lows and singing mids. I bet when you put it back on you can hear the difference now there’ll just be air in there. If you do want to refill then you could use SF6 as a substitute, it’s a bit cheaper than xenon but you’ll hear it listening to a good reference recording.

[Tony1963]

^

Really not worth the effort.

Les, the man at Avondale, is an electrical engineer, not a BS seller.

Edited by Tony1963 on Sunday 5th February 15:47

[thebraketester]

I had my SL-P350 open last night to try and find out why the drawer sticks intermittently. Still not worked it out yet. Be here we go. 1987 in all its glory.

[OutInTheShed]

Tony1963 said:

Just well thought out, beautifully created, neat electronics.



That’s the inside of my Avondale HLZ headphone amp, bought secondhand about six years ago, powered by a home built PSU.

Not much in there for Earl Muntz to get to work on!

[OutInTheShed]

thebraketester said:

I had my SL-P350 open last night to try and find out why the drawer sticks intermittently. Still not worked it out yet. Be here we go. 1987 in all its glory.

I should take a pic of my Marantz CD player and see what people make of the contrast in quality.
That would of course have to be in the context of the Marantz not actually working very well at the moment...

[thebraketester]

OutInTheShed said:

thebraketester said:

I had my SL-P350 open last night to try and find out why the drawer sticks intermittently. Still not worked it out yet. Be here we go. 1987 in all its glory.

I should take a pic of my Marantz CD player and see what people make of the contrast in quality.
That would of course have to be in the context of the Marantz not actually working very well at the moment...

Please do.. would be interested to see.

[Tony1963]

OutInTheShed said:

Not much in there for Earl Muntz to get to work on!

And today I’ve learned about Muntzing etc