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Horning owners what amps have you used?

Just curious what amps other owners, or previous owners, of the Aristoteles, Eufrodite, Agathon or Perikles have used. Chime in even if you don't own these speakers but have an opinion.

I know most everyone has heard these speakers with the TRON Discovery or Telstar at RMAF and the 211 is heavenly IMO, but way out of my price range.

I have the Aristoteles Zigma and a Thoress 300B SET (8w). I love it, but like anyone else who is possessed with sound addiction, as Neil says: rust never sleeps.

Has anyone used anything less than 8 watts? Or more power like a 300B PP or 845? I do have a Berning ZH270, and unlike a fellow Audiogon-er who had the ZH230 and Eufrodite and thought highly of the match, the ZH270 sound is not my thing.
dpe
charles1dad's avatar
charles1dad
10,250 posts
 
Dev,
That's interesting because the Horning speakers are a 4 ohm load. Seemingly more towards push pull friendly than most SETs.
Charles,
sonelectric
32 posts
 
I believe the impedance does vary by specific model, also, I'm pretty sure the impedance of my Eufrodites are rated at 6ohm nominal (and is at least reasonably flat). It also produces pretty impressive SPL when placed close to the front wall and powered by a 3 watt 2a3 SET (Wright 3.5 mono). So, while most 'back horns' are clearly not in the same efficiency/sensitivity ballpark as the most efficient front horns, these speakers can work well with 2a3, and even 45 SET amps- at least, in less-than-huge rooms, or for less than floor shaking volume levels. Room placement and reflecting some of the midrange and bass off of the front wall seems to be the key to both proper tonal balance, and maximum efficiency. At least that's my experience here. Hope this helps.
charles1dad's avatar
charles1dad
10,250 posts
 
If the impedance curve is relatively flat that certainly is an asset. Generally speaking S ET amplifiers like to see a higher speaker ohm impedance. Driven very successfully with 3 watt amplifiers does attest to its easy to drive capabilities.
psag
518 posts
 
Take these factors into account:

High sensitivity.

No crossover in the Eufrodite.

Complex internal horn structure takes impulse from all 10 drivers in the case of the Eufrodite.

What this means is that they should be used with the same type of amp used in their design and voicing (high quality SET, I believe).
charles1dad's avatar
charles1dad
10,250 posts
 
Well, that makes sense to me. I for one certainly don't need to be sold on the advantages and benefits of high-quality SET amplification. I'm hooked for life.
Thanks,
Charles,
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