Looking to buy used HR-1. I have a jolida 805 tube amp.  Is it enough to push that speaker?

AdamG,

Welcome! I could not find specs for an 805 Jolida....is it similar to a Jolida 801? If so, at 85 to 95 watts/8ohm, even with variations in measuring speakers and amps, seems you would have abundant power for HR1s.

Lucky for you that Archie might be willing to sell his. I was going to say also, it is pretty rare to see them come up.

It seems to me that Decware is careful/conservative about measuring, and the HR is rated:

92.5 dB with 1 watt at 1 meter
32Hz ~ 22kHz
4 ohm nominal impedance

They say minimum is 2 watts, but to me that is likely using a Decware 2 watt amp, which are known to feel more powerful than they measure, quite near field and/or small rooms, and maybe not terribly loud. My guess anyway.

I drive the HR1s with a Torii MKIV which is rated at 25 watts with stock tubes. I run mine a little lighter, using mellower tubes in several places. Also liking a ZBIT before a CSP3, then into the Torii, I can run into minor distortion a little earlier than using only one of these pre stages, so not sure of  the ultimate Torii power the ways I use it. I suspect the ways the HR1s spread the sound with the top driver contributes, but that is part of what makes them a special speaker too.

My room is hard for me to calculate accurately since there are numerous segues with partial walls, but roughly 30ish x18ish x 9???). For my serous immersion listening, averages are from the high 70dBs into low 80s and occasional peaks into the mid/high eighties...very rarely near or above 90. If not a little careful, I can get minor drops into distortion on extra hard notes while doing my style of really serious listening. So I am somewhat on the edge headroom wise for hardcore immersion listening here, loud enough, but near the edge, so needing a little care when setting up a session. I never run into this except in really serious listening. And it has been a while since I tested it, but I don't think this edge happens when I am running only the CSP3 or Zbit in front, a choice I could easily make if headroom edge were a notable issue for me.

Hope this helps,

Will

I drive one pair of HR-1s with the SE84UFO3 monoblocks with Anniversary mods, and another pair (one of the last prototypes before production models were manufactured) with a Taboo Mk IV with Anniversary mods. I would think the Jolida would work fine.