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In Reply to: RE: La Scala posted by 6bq5 on December 04, 2014 at 09:32:04
I have a few I want to try
1. Single ended triode (2A3) with EF37A driver and Sowter output transformer (self made)
2. RCA MI-12188a mono amplifiers (push pull parallel 807)
3. 75W Priboi amplofier (made in USSR)
4. Dynaco ST-70
Naturally the motivation behind the interest in the la scalas is amplifier 1. But I am curious how they will sound with 75W of tube power too!
I can see myself becoming obsessed with ridding my amplifiers of hum I didn't even know existed with such a sensitive speaker connected!
Follow Ups:
With any luck it won't be bad.
Right now I am using a home brew RH84 on my 101db 604E.
The only time I hear a little hum is when the PS caps are charging when first switched on, after that they are silent.
I primarily use digital as a source as these are also my "computer" speakers, in the past I had hum issues with different amps and inefficient speakers, caused by ground loops with the computer etc.
This is easily mitigated by using an optical link to external DAC.
Those speakers look like fun, enjoy.
My systems are all analog and all tubes. Hum is more or less a non issue with the Priboi and the Dynaco amplifiers, but the SET and the RCA's may need a little tune up. Going to go see the speakers on Monday, I am excited about this!
maxhifi,
I would stat from scratch and put the money into a better performing horn system as others have mentioned.
I would go for the Inlow 80hz or 100hz mid bass horn to start with as that is the key piece IMHO, get the mid bass horn wrong and your system will never sound proper.
Give look at DIY Sound Group for a good midrange horn / waveguide and purchase a pair if good compression drivers and you are close to home. When you have some extra cash grab a nice pair of Fostex tweeters and you are very close to done. Perhaps some time in the future you could add a pair of tapped horns or PPSL for bass and have a great high performance system.
The best part is you can buy your system piece by piece as you can afford to. Good luck.
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