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Looking for Betsy...

27.59.214.182

Posted on March 16, 2021 at 21:05:13
Bill the K
Audiophile

Posts: 7969
Joined: June 3, 2006
open baffle speaker measurements as detailed as JA One's speaker measurements in Stereophile. Very strange that with so many sophisticated cabinet designs around, a humble slab of plywood can challenge the sound quality. Maybe deep bass is a compromise but how many $350 speakers achieve going deep down? And so easy for DIY guys to build.

Bill

 

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it's a piece of wood, posted on March 17, 2021 at 05:53:16
mhardy6647
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Posts: 14154
Location: New England
Joined: October 12, 1999
Contributor
  Since:
October 23, 2016

... and Caintuck Audio sells 'em; they probably don't "want" DIY knockoffs out there.

That said, since the driver dimensions (diameter) are, presumably EIA standard, it ought to be pretty easy to figure out the dimensions from photographs if you really want to build one.

Or just go with the JE Labs OB, which offers supreme flexibility (and probably better LF cutoff to boot).

EDIT: OK, I am now confused. Wild Burro Audio has a driver called the Betsy, but that also seems to be tied to the aforementioned Caintuck OB loudspeaker product. I assume that the question is about the latter(???).
I also note that DECWARE has a forum dedicated to "Betsy" (one or the other, or both): https://www.decware.com/cgi-bin/yabb22/YaBB.pl?board=randy

Two Three postscripts:
1) I see a price of $549 on the Caintuck website for the Betsys (FWIW).
2) If you're just curious about the baffle dimensions, I do apologize for my snark -- your posts sounds like you want to bypass Caintuck in acquiring a pair, though.
3) the "Bestsy" driver: http://www.wildburroaudio.com/speakers.php

Sorry I am too lazy to add HTML tags to the URLs at the moment. :-/


all the best,
mrh

 

Nice Betsy baffle thread. Link., posted on March 17, 2021 at 07:25:22
viridian
Audiophile

Posts: 6689
Location: Portland, Oregon
Joined: May 26, 2005
Contributor
  Since:
February 1, 2012
From the Decware forum, thread below:

 

Was my main speaker for a decade..., posted on March 17, 2021 at 07:54:55
Ivan303
Audiophile

Posts: 42134
Location: Cadiere d'azur FRANCE - Santa Fe, NM
Joined: February 26, 2001
JE Labs open baffle with Goodmans of England 201s as the main driver with a EV T35B sitting on that to shelf doing the tweeting.

Not until I got my Edgar 'slim-lines', did I find anything close.







 

Can you share Stereophile review link? (nt), posted on March 17, 2021 at 13:12:32
Jonesy
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Posts: 2492
Location: Winnipeg, Manitoba
Joined: September 1, 2005
Contributor
  Since:
March 1, 2018
nt


"I know just enough to get into trouble. But not enough to get out of it."




 

RE: Can you share Stereophile review link? (nt), posted on March 17, 2021 at 20:10:17
Bill the K
Audiophile

Posts: 7969
Joined: June 3, 2006
Sorry I dont think Stereophile has reviewed Betsy. I was only wishing that somebody would review with detailed measurements, as detailed as what JA One uses for his reviews of speakers. I am curious to know how a cabinet less speaker can challenge theories of physics made applicable through Acoustic Suspension, ported, horns and Small Thiel differential equations.

Cheers

Bill

 

RE: Can you share Stereophile review link? (nt), posted on March 17, 2021 at 21:19:05
Jonesy
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Posts: 2492
Location: Winnipeg, Manitoba
Joined: September 1, 2005
Contributor
  Since:
March 1, 2018
Ah. I misunderstood. Yes, that would be interesting.

Cheers!

Jonesy


"I know just enough to get into trouble. But not enough to get out of it."




 

open baffle ephemera, posted on March 18, 2021 at 05:26:00
mhardy6647
Audiophile

Posts: 14154
Location: New England
Joined: October 12, 1999
Contributor
  Since:
October 23, 2016
If you, the OP, are interested in the art, science, and...well... everything else... of open baffles, you might want to pick a rainy weekend, brew up a pot of tea, get a tray of tasty snackkies, and peruse the 212-ish page behemoth of a thread on OBs that sprouted & took root at AK some time back (EDIT: in the year 2014, in fact).

The signal to noise ratio may be poor, but there's plenty of content to pore through.

More than one route to the top of the mountain, as they say. ;)


all the best,
mrh

 

Oh so very interesting, posted on March 19, 2021 at 07:56:54
Bill the K
Audiophile

Posts: 7969
Joined: June 3, 2006
Thanks. I saw some time back a video on Decware where an elderly slim tall gentleman slowly adjusted a pair of Betsys and sat on a sofa listening to some soft jazz. A little later he seemed to relax deep into the cushions and I was sure he had gone asleep. It sounded so great. I wonder if the gentleman was the designer. I did not give much credibility to a plain slab of wood challenging sophisticated boxes designed by brilliant brains. Now I realize there are possibilities of curved panels, circular panels and even Meta ones. Opens up several possibilities.

Cheers

Bill

 

RE: Looking for Betsy..., posted on March 22, 2021 at 06:49:25
Jeffbook
Audiophile

Posts: 47
Location: Ohio
Joined: December 23, 2004
www.linkwitzlab.com

The late Siegfried Linkwitz's website has all of the theoretical and practical information on open baffle speakers, including several designs for DIY construction from two way to four way systems.

Linkwitz was also a proponent of active speaker design, so multichannel amps are used in all of his designs to eliminate the inherent problems in passive crossovers.

Likely the bible of open baffle speaker design.

 

RE: Looking for Betsy..., posted on March 23, 2021 at 22:01:53
Bill the K
Audiophile

Posts: 7969
Joined: June 3, 2006
Wonderful site. Devouring. Thanks.

Cheers

Bill

 

RE: Looking for Betsy..., posted on April 7, 2021 at 21:30:24
Bill the K
Audiophile

Posts: 7969
Joined: June 3, 2006
the Betsy would sound even better if it were a perfect circle. I am planning a DIY with a 6 inch driver. Save money on the cabinet and spend it on better driver is an attractive idea.

Cheers

Bill

 

RE: Looking for Betsy..., posted on April 16, 2021 at 14:40:13
Posts: 6
Location: Eastern Ct
Joined: April 10, 2021
Bill,
The most important thing in building a speaker box is making sure that the box doesn't
make any sound when you rap on it. If it does this frequency's will-be lost. Make it using
the thickest wood you can afford and if need be brace the inside of the back. And use Gorilla
Glue and screws. And believe it try using one driver and forget the crossover. You will be
amazed at how good a driver sounds without a crossover. Try it you will be very surprised.
And get on the Tocaro web site. You will learn a lot and he gives the information for free.
Good luck
Ron
Gibson LGO

 

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