Tube Friendly Speakers - Down to 30Hz - $3000?

Tvad, Out of curiosity do you know what the maximum inpedence value is and what the actual curve looks like. Minimum and nominal values can be deceiving, especially if you're not getting a high power rated amp. Perhaps even with better values (alone) the VR4's might be a tough load. Just a thought - I know zip about your speakers.

Newbee, you asked a very good question, and I don't have the answer. I was never aware that high impedance is an issue, unlike low impedance.

An amplifier manufacturer told me yesterday that the use of Zeros will reduce the maximum power available to the loudspeakers. So, they do not appear to be an ideal solution if using low powered amplifiers.

This may be crazy but why not go to the Rocky Mountain Audio Fest so you can listen to all those speakers mentioned about and many many more. Oct 19th 20th. 21st. Air from the west cost as little as $140 round trip hotels as little as $75 a night and shuttle from airport to hotel/show $20. Saves a lot of money/headaches in mistakes.

09-29-06: Sounds_real_audio
This may be crazy but why not go to the Rocky Mountain Audio Fest so you can listen to all those speakers mentioned about and many many more.

That's always a possibility. The speakers I have identified as possible candidates are from Reimer, Coincident, Silverline, Tetra, Tyler and Oskar Heil.

Only Tyler Acoustics is on the RMAF 2006 exhibitor list. Therefore, while attending the show might be fun, it wouldn't offer the primary listening opportunities I seek.

I tried the Zeros to see if I'd gain anything with the 4 ohm impedence Reynaud Offrandes I'm running with my 25 wpc NAF 845 SE integrated. I did not perceive any improvement. If anything, the sound became somewhat bright on top, and fatiguing.

Regarding speakers, consider speaking with Brian at Venus HI FI. He is raving about the little known Almarro M3a's. These are said to be SET friendly. I think efficiency is only 89 db, but the impedence curve is quite benign. I plan to audition these next week. A Google search revealed a few raves, but not much info, otherwise.