SET vs OTL


Could someone tell me the difference between a single-ended triode amp and an output transformerless amp?

Is it true that despite its operational inconveniences, a good OTL (eg Tenor Audio) will always sound more "natural" than a good SET (eg a Cary 300SE)?

Thanks
aarif

Showing 6 responses by audiofeil

It's undeniable that every triode has its' own characteristics. A reputable manufacturer and/or experienced hobbyist knows this. Simply reviewing the electrical properties of each tube is sufficient proof.

Given a speaker is capable of being properly driven by a variety of SET amplifiers, the sonic signature of each triode is is clearly demonstrable.

To deny that is disingenuous.
Agree with Paul. The 45 is the triode gold standard.

Followed closely by 50, 2A3, and PX-25.

The 300B is a distant fourth and IMO, highly overrated.
Given a speaker can be driven by an SET amp of comparable build quality/design the 45, 50, 2A3, and PX-25 will outperform a 300B all day long, due mostly to superior linearity. Don't even mention the 845 and 211.

I've heard a boatload of these amps with appropriate speakers and I stand by my previous post.
No problem John; it's not a matter of relaxation but simple facts. You'll find that most knowledgable listeners prefer the 45, PX-25, and 50 to the 300B given the speaker can be driven by all four triodes. 300B is weak at the bottom and rolled off at the top. The "magic" and mystique is in the mid-range which is in fact quite relaxed and supple. At the extremes, 300B is much too compromised and does not compare to the others.

Perhaps with a bit more experience you will understand.
Johnk has no clue but he talks a good game.

If he had experience with flea power SET amps that Paulfolbrecht and I do, his comments would be somewhat valid.

Ignore him.
I sell 300B amps to folks who need or want them. I would never recommend a 300B when a 45, PX-25, 50, or 2A3 would suffice.

All things being equal, i.e. the speaker can be driven by any amplifier, the 45 kills the 300B all day long.

Anybody with half an ear would know that.

Perhaps even you John.

Your experience?
LOL, when you get to 50 years, we can talk.