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In Reply to: A NEW Dynaco ST-70 posted by Bob Latino on April 5, 2007 at 14:34:59:
In it's day it was a hell of a good amp, almost as good as the best for half the money. By today's standards it could be improved but way back then neither the parts nor the market for that kind of thing existed. I think you are way too hard on one of the great classics in audio.
Follow Ups:
Hahax,Your point is well taken - It is hard to judge by todays standards an amp that was designed with standards used in 1959. Back in 1959 the major signal source was vinyl which had a much lower dynamic range than the digital sources we now use today. The lower dynamic range of vinyl (40-50 db ??) did not stress the power supply on those old tube amps as a CD will do today with its 90+ db dynamic range.
But the fact remains that Dynaco did not design the Stereo 70 to be "the best sounding 35 watts per channel amp you can buy" they designed the ST-70 to be " the best sounding 35 watts per channel amp kit you can buy for $100" and in doing that they made compromises that affected its sound quality and long term reliability.
There's a lot to think about here.I just bought a sort of DIY amp (sold commercially) that sounds very good, but i am having a ton of problems because the construction was shoddy and the builder made many stupid mistakes (like the wrong tube sockets). It comes in two parts and weighs about 40 kilos. I am a little nervous about going down the DIY route again, but this one looked like a supurb value.
Why not buy a commercial 50 watter for $2000, say Rogue Cronus?
cost? DIY can cut it by as much as half.
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