The speaker/amplification wars continue


SET amplification vs PP amplification
High sens speakers vs ~`The INEFFICIENTS~~~
You might think this topic belongs over on amps room. Not at all. 
SET + High sens (91db-120db)
PP + Low sens = The Inefficients (below 91db)
Sunday I hope to get Richard Gray's 211 SET amp he builds in his shop.
This will be my 1st ever exp with SET amps, Not once have I heard a SET amp.
I know now what a  PP can do. 
I have various FR 91ish db speakers for testing.
Thinking it all over.
My only concern is classical music, Specifically full orchestra rocking N rolling. 
While listening to my Defy 7 6550, the orchestra is not separated, its all blended, like a  Louisiana Gumbo.
I'm guessing RG's 211 will bring  in details which a  PP amp just can't manage. 
I am not sure ,. just guessing here. Now all the YT vids on SET amps, have easy jazz, solo instruments, nothing complex whatsoever,. 
So obviously I will not test with my usual reference cds, Gatemouth Brown Gateswings, nor Sophie Milman. ,,well no actually we will start with Gatemouth, as his cd is high chaged with  thick stuff going on, Lets see ifa  211 can handle its business.
Next I will test the 211 witha  bunch of high quality classical, Rip Roaring full orchestra. 
Will tghe 211 pass with colors and separation and SLAM! or will the big bad boy go down in flames , all discobobulated and coughing its guts out.
Will post results. 
If SET wins, Defy is up on the auction block, actually ~buy now,/ships free~Going to takea hit on that one, as i have $1500 in upgrades, amp is from the early 2000'ish? . , amp hardly used, . Maybe 3-4 yrs  
mozartfan
May not get a  fair shake here with the RG SET
AS the 5 incher FR is 91db  and the 4 incher arrives nextw eek is 91db
Richard recommends speakers 94+ db sens. 
So we have low sens = under 90db
Mid level sens = 90-93db
High sens = 94db+++
I have mid level sens. 91,91,91, nothing wiyj high sens,,so testing  will be faulty. 
hummm, lets see, anyone have a  high sens driver they can send out, I'll pay ship both ways. 
Wait,,,Richard mentioned he has some old Magnovox horns in his stash.
maybe there are mid tweets which will give me at least a  better idea of what a SET is capable of.
I disconnected the W18's just now, so i can get a  good idea of what the Defy does with a  single FR mid sens driver,,,  vs the RG211.
For high sens FR you gotta pay the piper, those drivers are expensive. But now i see, higher sens = easier load on amp, = amp more effective/efficient. 
I get that now. 
If the RG211 SET can perform with passing colors ona  mid sens speaker, then I'll know its time to let  my beloved Defy go. 
I just  gota  message on a coment I made on his YT video of the Cayin 845,,says in his note ~~Hey Paul, I  shipped the cayin 845 back, only listened to vocals with it,,, I am now listening to a  KT150 with complex music~~~ What does this tell you??
The RG 211 will be tested as by fire. 
I know what the Defy can do, can a SET  beat it? 
We will know soon enough. 
is this the online version of staring into the mirror and talking to yourself for an hour?

good grief

wolfie62
185 posts
05-14-2021 12:34am
This is a very strange and weird post by the OP.

~~~~~~~~~~~~~~~~~~~~
~~Unusual~~ I agree
~~But strange/weird~~~, maybe you are not interested in this subject, and that I can understand.
So taking the 2 above comments , not as ~snides~ but as honest, fair and open free speech ..I took it easy and thought about my next move.
Obviously there are no fish biting on this topic and so I am just going to have to fish in other waters..
Lets see the Inet perhaps have some fish, = a  good answer.
So I type in 
~~Weaknesses of SET amplification~~~
and what do I catch?
None other than 
~Steve Hoffmans's page~
Oh its a big one.
And note 
~THis topic has been CLOSED~
Seems this topic is highly sensitive (pun intended) material, hush=hush.
Let me state at the get-go
I only employa  few jazz cds for the excellent record quality as testing cds, to ck the performance ofa  amp, speakers, tweak, upgrade.
Other than  for these pirposes, I  listen exclusively to classical, chamber yes, but also full orchestra.
Note the opening question.
My answer has been found. 
SET amplification will  have less than satisfactory results, when the music calls upon, power and muscle.
Jadis Defy7 will remain in place. 
paired with a  97b full range and  dual 87db midwoofers.
Had wolfie62 held back his free, fair open speech, I might not ever have typed this Q to the Inet's vast info recorded log.
I have not read through this topic on Steve Hoffman's page, the OP  gave me all I needed to know.
I will most likely let Richard know  that I have lost interest in his 211 SET.
Ohh I just peeked to the 2nd post, 
Futher affirming what I feared might be the result of the SET experiment.

Thanks Wolfie62 for inspiring me to make further research. You've been a big help
;--))

https://forums.stevehoffman.tv/threads/pros-and-cons-of-set-single-ended-triode-systems.136051/