High Efficiency Speaker Asylum

RE: yes, that is a very small baffle for "full range" reproduction

75.211.6.55

Tom Brennan

In Reply to: RE: yes, that is a very small baffle for "full range" reproduction posted by mhardy6647 on July 09, 2023 at 04:20:02

For some reason the EV Wolverine 12" wide range driver makes a robust sounding bass in a rather small open baffle. A guy in our old Chicago horn club put them in clear acrylic baffles about, oh, 4' high and 2' wide. They sounded very balanced.

Follow Ups:

very high Qts on that driver, Tom :) - mhardy6647 06:39:06 07/10/23 (1)
Which does suit an open baffle well. I think that's why the LS12 sounds pretty good on an open baffle.
Or even no baffle at all ;) as depicted in the photo I posted.

My first audition ever of Altec Duplexes (a pair of eBAY-fresh 604C that Gary Kaufman had acquired, many years ago) was "unbaffled". Ella Fitzgerald through them (with their stock Altec XOs) made me an instant fan of the Duplexes. I was already a fan of Ella. :)
...and, oh yes, I know -- any 604 family member does not represent a high Qts woofer.
all the best,
mrh
- RE: very high Qts on that driver, Tom :) - Tom Brennan 07:47:11 07/10/23 (0)
  Well, I'm very keen on the 604Es I recently got, they have excellent clarity do you the human voice in typical glorious Altec fashion. Big Tone.
  
  I built open baffle speakers for my brother about, oh, 45 years ago after a design from a DIY book by Gary Weems. I put several Lafayette Radio 6x9s in vertical arrays on 3/4" plywood baffles about 2' wide and 6' high and added Motorola piezos for better highs. They sounded pretty good.
RE: yes, that is a very small baffle for "full range" reproduction - Mats Gunnars 19:37:35 07/09/23 (0)
Then there was my 8" Supravox on
4 x 3' acrylic, slightly offset according to
the golden ratio, painstakingly cut out by
Kurt. Below 60 Hz plate amp driven
21" Madisons carried the load. As I recall, the
acrylic was an attempt at domesticating
the look. Sounded good on less complex
material, but for Bruckner and Mahler, no.
How old are you Tom ? 82? - Wojciech 19:35:25 07/09/23 (1)
Isn't the time to just watch the boats go by ?
- RE: How old are you Tom ? 82? - Tom Brennan 20:04:22 07/09/23 (0)
  No need to call me grandpa, nor Methusela. I can whup you to a frazzle. Now what's so mighty fishy about this trail?

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