Vintage Technics - SU-Z900

Mar 17, 2004 at 8:49 PM Thread Starter Post #1 of 7

mtaclof

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It's a receiver/integrated amp, about 20 years old. I'm using the 1/4 inch headphone jack to drive my Beyerdynamics DT250-80. It works great. I was wondering if anyone else has info on this, or has used it? If so, what headphone amp is comparable to?
 
Mar 18, 2004 at 2:36 AM Post #3 of 7
This is all I could find

Quote:

i have a technics su-z800 integrated amp with matching st-z400 tuner.
aquired it at a thrift shop for $6.00
really clean inside and out .
works fine , no problems at all.
it says 303 watts on the back .
has 4 speaker connections and hey can both be ran at the same time.
it also has an impedance switch on the back.
i was wondering if anyone knows anything about it
and what speakers originally go with it, etc....
also is it worth trading it for a sansui 9090db???


Quote:

I have an SU-Z900, which came with a medium-price system "package" in '85. If you notice, the tuner is connecting to the amp with a proprietary cable, as is the dual-cassette deck.
This was a cost-cutting design for sure.
On the plus side, the 303 watts indicate power consumption. You can expect 80-100 watts per channel. The internals consist of a single "power block" per channel, and the cooling is better than average, using copper pipe to a decent heat sink.
I found the Z900 very dynamic with sound quality that rivals the Kenwoods of the early 80's - sort of average plus. I sold a KA-5700 and a Nikko NA-690 just recently and kept the Z900 for a backup amp. Both use discrete transistors and look much better than the Technics - but don't sound nearly as good!
The Z900 is not the best amp, but it's a nice power-house in a smart small package, and I suspect the same is true for your Z800. Give it a good listen before you let it go at a ridiculous price (due to market perception...)


Quote:

I'm working on a Technics SU-8044 integrated amp and "I'm" not impressed with it. It looks like some corners were cut on parts and case construction. I think this series was the begining of the cost cutting effort and to hell with audio era. It's wasn't there yet but I think Technics was making the turn with this series.
On thing I have found I DON'T like the sound of units with Darlington power transistor packs. I don't know why but find myself just unimpressed with their sound. And I think the su-zxxx has them. But do check first with others who know more than me.

I would keep the 9090 if you are happy with it. If not then don't trade it for an untested unit.

charles


Seems to be a "mid-fi " system from 1985.
 
Mar 18, 2004 at 5:13 AM Post #4 of 7
Quote:

Originally posted by agile_one
Are you positive of that Model #?

Here's the definitive Vintage Technics site, and I don't see it there.

In general, Technics up to about 1981-82 was great stuff. Premium quality, and many interesting features - nothing like what they've become.


My Technics SU-C01 preamp rawks... not exactly ultimate-fi, but it kicks today's "consumer-grade" crap right out of the ballpark. A slightly better power supply and some replacement caps, and it'd approach the quality of today's "big boys" (particularly the excellent phono stage), but I can't bring myself to try modding it... too much risk of damaging an excellent vintage piece.

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Mar 19, 2004 at 1:43 AM Post #6 of 7
mtaclof: while fewtch's SU C01 definitely qualifies as a classic Technics PreAmp, I am afraid what you have is the integrated amp portion of a mid '80's rack ensemble which, while better than most of the crap put out today by Sony, Technics, Aiwa, Pioneer, etc, doesn't measure up to the Classic 1969 - 81 era.

Keep looking - there is lots of good old stuff out there, and us old timers are dying off every day
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Edit: spelling
 

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