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RE: a 45 for Trishna 95dB 1W/1M ...

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In Reply to: RE: a 45 for Trishna posted by mrubey on May 18, 2015 at 07:44:36

I looked at the specs for those speakers : 95dB 1W/1M @ 1KHz.

Are you going to be satisfied with the volume a 2W SE 45 amp can produce at your listening position?

I doubt it unless you have subdued listening habits.

Get a higher powered SE amp, PSE or push-pull tubes.

Forget SE 45/2A3 with those speakers or get some real high efficiency horns speakers like Altec, JBL or similar.

Think about what you are doing before spending a lot of $$$.
http://www.rethm.com/home.html (Open in New Window)

Follow Ups:

RE: a 45 for Trishna 95dB 1W/1M ... - mrubey 18:55:28 05/18/15 (0)
Rethm rates the system sensitivity at 97 db and suggests 2 watts as the minimum.
My room is small. It will be alright.
Room size - Rick R 18:50:03 05/18/15 (2)
Room size and room acoustics are part of the equation here. I have used 45 amps in small(10 x 12) to mid size rooms(12 x 18) with speakers of 92 to 96 dB and was pleased with the sound. I also used a 45 amp in a large room (18 X 30) with 105 dB speakers with excellent results.

Your personal taste comes into play as well. My tastes are jazz, vocals and world music, and I don't care about feeling the bass line in my chest. Someone wanting large scale orchestral fireworks or metal might find my systems lacking.
- RE: Room size - mrubey 19:07:28 05/18/15 (1)
  My room is 12x16. I have similar tastes including solo and small scale classical.
  Rethm speakers have active bass so the amp is only driving a 5" paper cone w/ a whizzer.
  The system sensitivity is rated at 97 db.
  
  I have a very nice midfi Rotel Klipsch system when I need some SRV.
  
  Thanks for putting me onto Sonic_oli, I'll get in touch with him when I'm ready to get the project underway.
  - RE: Room size - Rick R 20:59:28 05/18/15 (0)
    I had a very similar size room and ran KCS Fostex F200A speakers, about 92 dB. I ran it with 300B, 10Y and 45 amps. All sounded good, just different flavors. From the specs on the Rethm speakers, they should do great with a 45.

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