My First High efficiency speakers and tube amps, advices please

Posted by FreedomJazzDance on August 17, 2019 at 01:42:19

Greetings to all music lovers out there.

I appreciate very much if more experienced people can solve some doubts of mine about the loudspeakers that i'm planning to build and tube amplification.

It's a back loaded horn with 8" Fostex full range driver and super horn tweeter, I will build their recommended enclosure.

Enclosure:
https://www.fostexinternational.com/docs/speaker_components/pdf/recom_enclose/208ez_enclrev.pdf

Full Range Driver:
https://www.fostexinternational.com/docs/speaker_components/pdf/fe208ez.pdf

Super Horn Tweeter:
https://www.fostexinternational.com/docs/speaker_components/pdf/t900a.pdf

I decided to use tube amplification, it will be my first tube amplifier too.

Some people tells me that is vital, an tube amplifier with high output impedance, also knows as low damping factor, so that's why SET amps are a classic match for this kind of speakers? mostly because of their high output impedance?

Meanwhile some amplifiers dealers are telling me that this is not a important factor when considering this particular loudspeakers...

Appreciate all the thoughts and elaborations about this subject.

Also, appreciate very much any other relevant infos about tube amplification with a back loaded horn similar to this design, thoughts from owners of this particular design are also very welcome.

Many thanks, best regards to all!

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Topic - My First High efficiency speakers and tube amps, advices please - FreedomJazzDance 01:42:19 08/17/19 (27)

My experience...... - Oface 19:57:08 08/17/19 (6)

RE: My experience...... - rogerh113 06:31:25 08/18/19 (3)

RE: My experience...... - Oface 17:31:20 08/18/19 (2)

RE: My experience...... - rogerh113 17:37:28 08/18/19 (1)

RE: My experience...... - Oface 19:31:35 08/18/19 (0)

wise words! nt - Story 04:20:12 08/18/19 (1)

yeah, I would, upon reflection (and FWIW), agree - mhardy6647 18:04:10 08/18/19 (0)

Them's some honky horns - Jay Buridan 14:53:57 08/17/19 (0)

RE: My First High efficiency speakers and tube amps, advices please - Paul Eizik 14:45:21 08/17/19 (0)

RE: My First High efficiency speakers and tube amps, advices please - cawson@onetel.com 10:28:42 08/17/19 (0)

RE: My First High efficiency speakers and tube amps, advices please - Bill Fitzmaurice 08:50:13 08/17/19 (0)

First of all - Inmate51 08:33:13 08/17/19 (0)

RE: My First High efficiency speakers and tube amps, advices please - FreedomJazzDance 07:35:56 08/17/19 (2)

RE: My First High efficiency speakers and tube amps, advices please - rogerh113 12:49:29 08/17/19 (0)

the type of amplifier you're considering will have a low DF... - mhardy6647 08:25:22 08/17/19 (0)

RE: My First High efficiency speakers and tube amps, advices please - rogerh113 07:13:19 08/17/19 (9)

RE: "Lower power SET amps will have a hard time driving bigger woofers." - mhardy6647 08:17:23 08/17/19 (8)

RE: "Lower power SET amps will have a hard time driving bigger woofers." - rogerh113 08:50:34 08/17/19 (7)

I use 2.5 Watts with GPA 604 Duplexes - 91derlust 14:48:09 08/19/19 (0)

I use 3.5 watts with 604E Duplexes (nt) - mhardy6647 05:01:41 08/18/19 (5)

RE: I use 3.5 watts with 604E Duplexes (nt) - rogerh113 17:23:11 08/18/19 (1)

OTL I dunno about :p (nt) - mhardy6647 18:06:02 08/18/19 (0)

Poof! - Inmate51 07:36:31 08/18/19 (2)

RE: Poof! - Oface 19:33:35 08/18/19 (0)

they are 3.5 reasonable watts; I eschew the unreasonable sort (nt) - mhardy6647 15:23:00 08/18/19 (0)

Additional thought - Charlie8521 05:17:00 08/17/19 (1)

Depending on the power amplifier's requirements for drive... - mhardy6647 05:48:48 08/17/19 (0)

My First High efficiency speakers and tube amps, advices please

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