Odyssey and Electrostatics and Low Impedence

PhotonDon

  • Jr. Member
  • Posts: 20
Odyssey and Electrostatics and Low Impedence
« on: 26 Apr 2026, 03:43 am »
Klaus states his amps are stable down to two ohms. That's a rather ballsy statement, but im thinking that statement is probably true.  I was just gifted an Acoustat 1+1 ESL speaker system, and I'm a fan,(until I felt the heatsinks of the first amp they were being powered by). Five more minutes and I think the heat would've bubbled up the finish of the rack upon which it was sitting. This amp was not an Odyssey. I took that amp outside to cool and hooked the stats to my Kismet and ran em pretty hard. they got medium warm, which was not unexpected since there wasn't near enough airspace around it. After getting three more inches of shelf space the Kismets were barely warm. I think the Acoustats go down to three ohms or lower in the higher frequencies

IS anyone else running crazy low impedance drivers with your Odyssey?  An? Any issues I should be aware of?.   THANKs

Housteau

Re: Odyssey and Electrostatics and Low Impedence
« Reply #1 on: 4 May 2026, 04:31 pm »
Years ago I had owned the 1+1s.  I am just curious as to how you feel they stack up to other electrostats today?

Crusty

  • Jr. Member
  • Posts: 6
Re: Odyssey and Electrostatics and Low Impedence
« Reply #2 on: 1 Jun 2026, 02:58 am »
Been listening to music for a couple hours with Martin Logan hybrid ESL's and just felt the vents on my Kismet monoblocks and they are not hot at all.  I would say they are probably a little warmer than skin temperature.   

Statman72

  • Jr. Member
  • Posts: 9
    • Jazzman's DIY Electrostatic Loudspeaker Page
Re: Odyssey and Electrostatics and Low Impedence
« Reply #3 on: Yesterday at 12:51 am »
Hybrids are easier to drive because they can use transformers with lower step-up ratios that draw less power from the amp as compared to full range ESLs like the Acoustat 1+1's.   

The power requirement is predominantly determined by the diaphragm-to-stator spacing (d/s).  Full range ESLs need at least twice the d/s of a hybrid ESL to accommodate the greater diaphragm excursions for bass output.  Because the driving electric field falls off according to the inverse square law, doubling the d/s requires 4X the amp power to produce the same SPL. 

Crusty

  • Jr. Member
  • Posts: 6
Re: Odyssey and Electrostatics and Low Impedence
« Reply #4 on: Yesterday at 10:10 pm »
It sounds like the OP was asking about the ability of the Kismet to drive low impedance loads.  In the case of the ML Vistas, they go down to 1.2 Ohms in the panel.  I haven't noticed any problems with that.