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In Reply to: RE: You could say that about any class of operation nt posted by Ralph on June 28, 2016 at 13:20:25
I guess this brings us back to the major issue: Amp/speaker synergy. Every amp manufacturer should provide a list of recommended speakers.
Follow Ups:
...or the other way - call your speaker manufacturer for a list of recommended amplifiers.
Not practical. Speaker manufacturers just quote power ratings required and are not concerned with different class of amps.IMO You can not beat a well designed class AB amplifier as I have already posted for reliability sonics & cost.
class AB amplifier as I have already posted for reliability sonics & cost
Cost is all over the place...even for Class AB transistor amps (like D'Agostino Momentum for example or darTZeel) so I really think you cannot generalize this point.
Sonicswise, they are also all over the map...from wretched to ok but nothing special.
Cab, From wretched to OK .... LOL ,
I'm sure the same can be said for any genre of amplifiers , many tooby sound Meh to me, only SET's hold corn.
True, many tube amps sound MEH...even some SETs ;-).
You might like some push/pull triode amps though.
Having a GM70 SET built , similar setup to the Lamm ....
Sounds good. What are you using as a driver ? Interstage transformer? What for an output transformer? Silver wire wound? Single output tube or PSE?
I thought your speakers were not really SET friendly? Did you get some horns?
Speakers are similar to Scinnies load wise , but hybrid in the bass, it's a 4 tower setup , pure 2 way ribbon down to 240hz. I'm looking into doing a horn for the first time in 38 yrs something similar to DDK's but smaller in scale.
Amp will be single tube (true SET) trannies were going to be silver via AN, but they would not do a 2 ohm tap , so I'm sourcing from another.
Regards ...
You're gonna have to 'splain to me what "Scinnies" are.
:)
Living in Audio Sin ..... :)
The way that Duke LeJeune of Audiokinesis speakers has tried and highly recommends Ralph's Atma-Sphere OTL amplifiers...
Edits: 06/28/16
"Every amp manufacturer should provide a list of recommended speakers."
I won't argue with that.
If the user is uneducated and doesn't possess the knowledge to determine (for himself) what loads are appropriate and which one's aren't (for a particular amp circuit) then the list would be imperative.
Tre'
Have Fun and Enjoy the Music
"Still Working the Problem"
And, of course, the most helpful list would include speakers that have been evaluated for sound quality as well as electrical compatibility!
The thread post asked about the class of operation.
Asking about speaker compatibility is another matter altogether and one unrelated to class of operation!
However in general, if high fidelity reproduction is your goal, it is to your advantage to look for a speaker that has a higher impedance, regardless of the technology of amplifier (class D solid state or 300b SET).
The reason is that distortion is always lower driving a higher impedance. This can be seen in the specs of all amplifiers made. It is also audible since the ear converts such distortion into tonality. It is true that the difference might look slight on paper, but the ear does not care about the paper and simply hears the difference, and that will be that it will sound less detailed and harsher when driving a lower impedance or more complex load.
Its one thing to know that an amplifier can indeed drive such loads, but that is not the same as that same amplifier sounding its best!
Now if sound pressure is your goal and you have a solid state amp that can behave as a voltage source, a lower impedance will give you a little more output (not a lot; 3db more as the load impedance is halved) but the price paid is that the system becomes increasingly sensitive to the length and quality of the speaker cables.
So in general it can be said that speaker compatibility will be less critical if the speaker impedance is kept at a higher impedance; 8 or even 16 ohms.
Thanks for the comments anyway.
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