SET amp owners thread

[Exlibris]

I think you'd be surprised how good modern class D is with woofers. They have a grip on the woofers that other amps just can't match. PP tubes are going to be sloppy in comparison.

I'm hoping to borrow a good SS amp and give that a try.

 

[christensenleif@msn.com]

KRELL KAS

 

[bonzo75]

What are you even talking about? What won’t work? I never said Audio note 2a3 does or doesn’t work on my speakers (and which speakers??).
bunch of gibberish from you.

Please don't take it out on me that you can't set up simple Radian drivers or panels

 

[morricab]

Please don't take it out on me that you can't set up simple Radian drivers or panels

...you have yet to demonstrate you can setup ANY system... I have plenty of good results and since you haven’t heard any of my systems you cannot say anything about mine that isn’t BS...

 

[morricab]

Please don't take it out on me that you can't set up simple Radian drivers or panels

I guess it is convenient for you to not have a system because then you can sit back and be critical without any skin in the game. No one knows if you can really hear or not as there is nothing of your own work to demonstrate what you know or don’t know.

I share my experience and experimentation on my thread and you think you can judge this?? Without even hearing for yourself? Without ever putting a driver to horn and seeing how it works?

You keep talking about some cookie cutter ALTEC/FLH system , which may or may not sound good...when it doesn’t what will you do? You will no longer be able to criticize from a distance...

 

[bonzo75]

I was not criticising you at all. I was making observations and you started insulting with comments like.BS etc. I did not even address my posts to you.

I am least interested in comparing my system, previous or future. You are the one who always makes it about your system. My reference systems are built by experts and belong to others, and yes, I don't follow your posts else I mistakenly might mislead myself

 

[Joao@altheamusica]

Thanks Joao,
What frequency do you cross and do you not get any “mud” at the crossover point at all?

My xo-frequncies makes no sence for your system.... important is to know how it works, or better how to find the correct xo-frequency.
You have to measure your drivers / horns without a xo by using pink noise! Then look at the curves (slope etc.), store the curve (mid-high for example) as overlay and then measure the bass. Now you can use a xo point what you think is best. Build the xo and listen, listen for a month or so and notice the plus / minus points, correct the xo etc.

I'd recomment to use a DSP-xo for this because you have a large free of degree points (slopes, xo-frequency...)

 

[christensenleif@msn.com]

and when you´ve landed, ditch the dsp asap and replace by analogue filter

 

[Joao@altheamusica]

and when you´ve landed, ditch the dsp asap and replace by analogue filter

Yes, that's correct - I forgot to mention but I thought this is the clear and must not be mentioned.
BTW, nice horn setup you have

 

[christensenleif@msn.com]

thxs ...enjoying an Impulse with Johnny Hartmann from -63 now....
with Illinois Jaquet, Kenny Burrel/Jim Hall+Milt Hinton+Elvin Jones

 

[Exlibris]

I'm hoping to borrow a good SS amp and give that a try.

I've borrowed a Goldnote PA-10. SS, 75w.
I'll hook it up and give it a try shortly.

 

[Audiophile Bill]

My xo-frequncies makes no sence for your system.... important is to know how it works, or better how to find the correct xo-frequency.
You have to measure your drivers / horns without a xo by using pink noise! Then look at the curves (slope etc.), store the curve (mid-high for example) as overlay and then measure the bass. Now you can use a xo point what you think is best. Build the xo and listen, listen for a month or so and notice the plus / minus points, correct the xo etc.

I'd recomment to use a DSP-xo for this because you have a large free of degree points (slopes, xo-frequency...)

yes done all this for 2 years now thanks - I was just interested in where you landed with your choice of point and your specific drivers

 

[DeadWax]

SETs lose advantage the higher power you go

Can you elaborate on this more? Just trying to understand what advantage is getting diminished with higher power.

 

[Audiophile Bill]

and when you´ve landed, ditch the dsp asap and replace by analogue filter

I will be doing the exact test this weekend - comparing my existing active analogue filters with my very recent Acourate 64bit, room corrected filter.

Will be interesting.

 

[Audiophile Bill]

Can you elaborate on this more? Just trying to understand what advantage is getting diminished with higher power.

Clearly I am no spokesman for Kedar but I think he is stating that the magic of SET resides predominantly in the lower power SETs not in the very high power varieties.

 

[DeadWax]

Clearly I am no spokesman for Kedar but I think he is stating that the magic of SET resides predominantly in the lower power SETs not in the very high power varieties.

Aside from subjective "magic", I was curious if there is a technical basis behind the statement like reduced distortions or somehow synergy with speakers are increased. Really just an educational type question. Setting aside the 300B low power SET amps, I was just curious.

 

[morricab]

I've borrowed a Goldnote PA-10. SS, 75w.
I'll hook it up and give it a try shortly.

For the bass only or the full range?

 

[caesar]

... Jadis makes some very good PP tube amps. ...

Hi Morricab,
Which Jadis amps have you heard and which are your favorites?

 

[caesar]

Gentlemen,
Out of curiosity, which amps would you think would really work nicely with Alsyvox? 94 efficiency and no dips below 4 ohms seems like a dream come true, but I wonder if the really low powered stuff would be able to drive it

 

[cjfrbw]

Gentlemen,
Out of curiosity, which amps would you think would really work nicely with Alsyvox? 94 efficiency and no dips below 4 ohms seems like a dream come true, but I wonder if the really low powered stuff would be able to drive it

It's flirting at the edge of usability with a 300b SET, and in another thread, it was stated that at least some development of the speaker was done with 300b SET.

Some flea powered snobs don't even credit 300b SET with being so called 'true' flea power, reserving that distinction for 45, 2a3, 50 etc. It was funny, I don't have the link, but one ancient SET crumble on audio asylum said he just threw out crates of 300b tubes that had gathered in theaters in the day because he said they were all junk, even the vaunted Western Electric 300b. That really made me laugh. He wouldn't listen to anything above 2a3 in power. There are even some low power snobs who listen to tubes in the half to three quarter watt range with highly efficient speakers.

I do think it is an education to hear a full range setup driven by a nice 45 amp, because it is unique and really scrambles the brain cells about what amplification is and should accomplish. When you hear what a well done 45 can do, a lot of amp mythology that you hear from many mavens about power etc. seems to evaporate and you wonder why other amps can't do what the humble 45 does.