Dynaco 120, can you tell me some about the "sonic" qualities - diyAudio
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Old 16th October 2004, 06:21 AM   #1
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Default Dynaco 120, can you tell me some about the "sonic" qualities

I was surfing and met this amplifier.

Can some friend tell me how it sounds?

regards,

Carlos
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Old 16th October 2004, 09:41 AM   #2
djk is online now djk
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Sound?

Not very good.

Not very reliable either.

Not much salvage value either:

Small heatsinks, single 60V supply voltage.

The ST150 was a vast improvement.
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Old 16th October 2004, 01:59 PM   #3
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Default Thank you DJK, this one simulates very good

But as you telling that the sound is not so good. I will forget it.

Can you please tell me one amplifier that you like, just to check the kind of sound you like?

I will explain, Pioneer have some characteristic that i do not like, this way, if you like some eighties Pioneer model, i have the chance to disagree related your musical taste... this way, will go on to hear that dynaco.

If you say that like class A JLH amplifiers, or AKSA, and some old Sony models.... i will erase Dynaco from my mind, as you have same "tuned" ears i have.

regards,

Carlos
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Old 16th October 2004, 02:09 PM   #4
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I have a mint Dynaco 150 which is rack mounted that I don't need if you get your heart set on one. I built it myself when I bought the kit circa 1975. Personally I think it is crap. If you insist on vintage sand get a Marantz 240. 120 watts/ch. Good sound, lots of power, reliable. Curiously I have a spare one of these too.
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Old 16th October 2004, 03:31 PM   #5
jmateus is offline jmateus  United States
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Default Dynaco 120

This is your friend over the States:\
Strangely you couldn't recognize the chassis of my JLH, I sent
you....It is the chassis of a Dynaco 120 that I bought already
burnt, on E-Bay...
The only thing I could save from it was exactly the CHASSIS,
it was big enough to acommodate the JLH...
Do you remember now?
It was a BAD,BAD,BAD amplifier, and it was one of the first
atempts of Dynaco to SS.....
Dynaco era comigo, bicho....
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Old 16th October 2004, 05:35 PM   #6
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Default Ahahaha Mat, so you had my answer!, thank you to Canadien

The Canadien that told the amplifier is a crap!....hehehe

But Mat!... talking to you everyday.... so near the answer (e falando contido todos os dias, a resposta logo aqui perto)
and i open that question to all forum.... and the answer so near!

Good Mat... could not recognize your Dynaco with JLH over it.

That was great!

Beautifull speaker yours, friend from Canada.

regards,

Carlos
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Old 16th October 2004, 05:45 PM   #7
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Default Re: Ahahaha Mat, so you had my answer!, thank you to Canadien

Quote:
Originally posted by destroyer X

Beautifull speaker yours, friend from Canada.

regards,

Carlos
Thank you for the compliment Carlos! Here are pictures of my new DIY speakers. They are sounding very good now as the crossover is nearly dialled in and the drivers are breaking in.

Share pics of my latest loudspeaker design
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Old 16th October 2004, 05:54 PM   #8
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Default Rcavitim, hehe, arrested inside glass tubes, passion is that way, a prison!

I have hair to, and 55 years my friend...the picture is not more than 10 monthes old.....the hair is more white...it is full of gel to fix the hair in place... Gel turn it dark...interesting effect.... will use gel other place to see, if the almost dead one,will return to life without Viagra or Cialis...Ahahahaha...not difficult to capture the meaning...hehe.

Will now see your speakers...they look very good.

Could see 150 dynaco schematics, this one is really more modern, i can sniff the sound will produce with precision... do not need to assemble this one.

bye

Carlos
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Old 16th October 2004, 06:06 PM   #9
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The Dyna 120 is a waste of time. It was made too early, by engineers who did not know transistor design very well. Even the Dyna designer who I talked to in 1965 told me to stick to tubes.
Folks, you must understand, marketing pressures like: 'Perfect sound forever', 'No output transformer', etc, force companies to change their designs, sometimes before the new technology has caught up.
I did use a Dyna 120 as a motor drive amp, but that is another story. Sorry, but the Dyna 120 is only good for driving motors, not loudspeakers.
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Old 16th October 2004, 07:26 PM   #10
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As a boy in hogh school I built both the PAT 4 and ST 120 and used them in my bedroom system. Later on when I was a Senior in high school I saved my money and sold both Dynacos and bought a Phase Linear 400, also a crappy amp by todays standards!
I can't think of any sonic qualitues that are to do with the ST 120.... at all, even back on 1971 when I built it. In fact for a "less Sonic Quality" experience get a PAT 4 preamp to go with it. These were meant to be budget concious pieces even back then.

The later Dynaco amps particuluarly the ST 400 are actually still quite good today if you can find a working one. The ST 400 makes a good chassis for a small Class A power amp too!!

Mark
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