SET amp owners thread

[Amir]

I don’t know many things about output transformers but I know tightly wound, compact transformers are better compared to loosely wound, big ones. The goal is to concentrate magnetic flux in a small area. In OPT world being bigger doesn’t mean being better. Of course OPTs you mentioned might have been wound tightly while also being huge.

Audiopax designer (Delima) said the output transformer of SET amplifiers should optimize for best listening experience so Delima believes not big not small OPT are good and the designer should find the proper size of OPT.

Over 90% challenge of SET sound is proper designing of OPT.

Romy believes it is better to use multi channel SET amplification (DSET) and designer can optimize each OPT for the frequency range.

 

[DasguteOhr]

Making statements without having listened to the gear is not the way I contribute to WBF. And I stand by my word regarding Aries Cerat. I had plenty opportunities to acquire gear from them and never wanted to. Case closed.

View attachment 149489

Amazing good driver tube c3g love german posttubes.

 

[DasguteOhr]

I don’t know many things about output transformers but I know tightly wound, compact transformers are better compared to loosely wound, big ones. The goal is to concentrate magnetic flux in a small area. In OPT world being bigger doesn’t mean being better. Of course OPTs you mentioned might have been wound tightly while also being huge.

Exactly right. A small example: Monolith Magnetics that GM 70 opt weighs only ~8kg have phantastic specs. Not a cheap pleasure pair 1.4k€

 

[Argonaut]

Monolith Magnetics that GM 70 opt weighs only ~8kg have phantastic specs.

Monolith are my weapon of choice , have three complete sets of their iron laid away for future projects :

https://www.monolithmagnetics.com/sites/default/files/datasheets/Single-ended-output-transformers/datasheet%20SA-9%20300B%20single%20ended%20output%20transformer%20prelim%20Metglas%20powerlite%281%29.pdf

 

[bonzo75]

Monolith are my weapon of choice , have three complete sets of their iron laid away for future projects :

https://www.monolithmagnetics.com/sites/default/files/datasheets/Single-ended-output-transformers/datasheet%20SA-9%20300B%20single%20ended%20output%20transformer%20prelim%20Metglas%20powerlite%281%29.pdf

https://www.monolithmagnetics.com/sites/default/files/datasheet%20SX-11%20old%20format.pdf

Their nano is excellent. SJS also uses them in his 300b amps that Kevin sells

 

[DasguteOhr]

Monolith are my weapon of choice , have three complete sets of their iron laid away for future projects :

https://www.monolithmagnetics.com/sites/default/files/datasheets/Single-ended-output-transformers/datasheet%20SA-9%20300B%20single%20ended%20output%20transformer%20prelim%20Metglas%20powerlite%281%29.pdf

https://www.monolithmagnetics.com/sites/default/files/datasheet%20SX-11%20old%20format.pdf

First one , when you smart with anodeload on your primary winding, then have a better dampingfactor then dartzeel 108 first series . What is serious good for set amp.