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High value, high efficiency speakers for SET amps

Hi, Gang,
I know that some of what I want to discuss here has been dealt with in other threads, some of them quite old, but I wanted to see if any of you fine, knowledgable folks are willing to help update and consolidate some of this info in a more current thread.
I am currently running my new Audio Note Kit 1 300B SET amp with a pair of Reference 3A De Capo speakers. I think it's a fine pairing and I am really enjoying what the 300B SET experience brings to the table in terms of musicality and emotional connection.
Still the De Capo, while supposedly an easy load due to its crossover-less design (only 1 cap on the tweeter with the mid-woofer directly coupled to the amp), is "only" rated at 92 db efficient, and based on the most recent Canadian NRC specs, that rating may be optimistic.
So, I am toying with the idea of trying a pair of more efficient, deliberately SET-friendly speakers in my rig, something that might also play lower and with greater dynamic swing than the De Capo's. Note that the De Capo's have served me well and I am very fond of them, but I can't help but wonder if my lovely Kit 1 would shine even better coupled to a VERY easy to drive speaker.
Devore and Audio Note are obvious options - the O/96 looks really tasty. Unfortunately, both of those choices are out of my budget, which I'm thinking maxes out (for real) at around $1500. I am willing to consider used equipment.
Tekton Lore 2.0: This is the speaker that Eric Alexander of Tekton has recommended when we've spoken on the phone, based upon my medium-small listening room and amp. I've read the epic "Lore vs. Zu" thread elsewhere in this forum, and clearly Tekton has its enthusiastic fans here. What I wonder is whether the Lore 2.0 has the refinement of the De Capo in terms of resolution, sweet high end and imaging. Audiogon'er Mikirob has pointed me to the many rave reviews of Tekton's speakers and I'm definitely interested.
I've corresponded with the Sonist folks (who are super nice) but their really high-efficiency, nearly-full-range floor stander is out of my budget.
Then there's the "vintage" route, going after some used JBL's or other high-efficiency "classics" from the 80's (or '70's). I am not inclined to go in this direction, but mention it because it's been suggested to me.
And then there's Omega. I spoke to Louis some time ago and he recommended his 7XRS hemp cone model. But I know all the raps on single driver designs and I'm cautious, although I would like to hear from any of you who own or have owned Omega's.
I'm in no rush to make a switch but I am very interested in your thoughts. Thanks, folks!
rebbi
seikosha
218 posts
 
I'm a big Omega fan. Haven't heard the Tekton's yet, but I know that out of those who have heard both some prefer the Omegas and some prefer the Tektons, but really, they are quite different designs. I own different single driver speakers from Fostex and Markaudio and to date, it's the Omegas that I prefer.

I'd be wary of all sensitivity ratings. Just like the DeCapos were tested lower than the official values, Stereophile measured the Enzos at 6db lower than official specs. Bottom line, you really need to hear them in your system to see how they perform.

With single driver designs, you might lose some of the ultimate high end extension that you now get with the DeCapos. The tradeoff might be increased transparency and midrange purity. Every type of speaker involves tradeoffs, you just have to decide which ones you want to put up with.
grinnell
1,075 posts
 
I have only heard one of there speakers the Druid I think but the Zu Soul and Soul Superfly look intriguing.
mapman's avatar
mapman
21,851 posts
 
"Every type of speaker involves tradeoffs,"

That is true, especially with limited budget.

For a SET amp in articular, if it were me, the thing worth trading off is low end extension, which is where the hardest work is required by far, exponentially so as the frequency decreases. Limiting/filtering low end extension as needed opens up many many possibilities. A smaller room will typically work in one's favor in that regard in that less work is required in smaller rooms.

You can get the low end extension off just a few watts as well but you need larger drivers/speakers in general and of course high quality larger speakers will cost more.

Tannoy is a line I would want to hear that might have some unique things to offer for the SET amp world.
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