Lets see your O.B. speakers....!

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opnly bafld

Re: Lets see your O.B. speakers....!
« Reply #580 on: 4 Jul 2024, 12:09 am »
Just finished building these open baffle speakers.
Wild Burro Betsy and GRS 12" subwoofer, a single ended tube amplifier for the wideband drivers and a pair of Dayton Audio SPA250 plate amplifiers for the bass drivers.









jk@home

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Re: Lets see your O.B. speakers....!
« Reply #581 on: 4 Jul 2024, 11:55 am »
Nice, I guess you would call that a WAW (woofer assisted wideband)? Question; looking at the plate amp you are using, on the PE site it appears to be in an enclosure (with loose wires in the back)? How do you have it wired into the FR?

opnly bafld

Re: Lets see your O.B. speakers....!
« Reply #582 on: 4 Jul 2024, 12:45 pm »
Nice, I guess you would call that a WAW (woofer assisted wideband)? Question; looking at the plate amp you are using, on the PE site it appears to be in an enclosure (with loose wires in the back)? How do you have it wired into the FR?

Thanks!

I prefer "Fast" fullrange assisted.  :wink:

2 pairs of speaker wire out of the tube amplifier - 1 pair to the Betsy (upper bi-amp input terminal) - 1 pair to the plate amp input - plate amp output wired to lower connections on the bi-amp input terminal.

https://www.parts-express.com/Gold-Plated-Bi-Amp-Terminal-260-304?quantity=1








« Last Edit: 4 Jul 2024, 04:30 pm by opnly bafld »

jk@home

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Re: Lets see your O.B. speakers....!
« Reply #583 on: 4 Jul 2024, 07:26 pm »
Thanks, that sounds like a simple hookup. Think I will go the same route. I'm using mono amps at the speakers, so the extra wiring for the bass amps/drivers will be minimum.

dcbingaman

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  • VPE Electrodynamics - LDW Model 1, Model 2, Crysta
    • VPE Electrodynamics
Re: Lets see your O.B. speakers....!
« Reply #584 on: 10 Jul 2024, 01:06 am »
The VPE Electrodynamics Crystal Dipole 2's. Uses the Cube Audio F10 Select in a 1/2" thick acrylic open baffle 16" x 48" on Magna Riser stands.  Augmented in the bass by twin VPE Electrodynamics Model 1 Little Dipole Woofers DSP.  Sounds Awesome !

Driver EQed using Schiit Audio Lokius box.  Schiit Audio Kara Preamp and Dynamo / Radial Stereo 70 Series III EL34 Tube Power Amp








ahola1968

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Re: Lets see your O.B. speakers....!
« Reply #585 on: 14 Jul 2024, 07:33 pm »





ahola1968

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  • Posts: 10
Re: Lets see your O.B. speakers....!
« Reply #586 on: 14 Jul 2024, 07:36 pm »
New 3-way OB conception with Electro Voice  ST350B

Poultrygeist

Re: Lets see your O.B. speakers....!
« Reply #587 on: 15 Jul 2024, 10:25 am »
8" Zenith alnico drivers over 10" bass woofers from PE. The Zeniths were pulled from a 1957 console and look and perform like larger versions of Coral Holey Baskets. The make and model numbers were mysteriously blacked out.






Poultrygeist

Re: Lets see your O.B. speakers....!
« Reply #588 on: 15 Jul 2024, 10:59 am »
The 8" Zeniths next to the Lii Audio F-15s over 15" Eminence Alphas. The F-15's are the heaviest wide band drivers I've used and Steve of Decware fame claims their sound is reminiscent of the big alnico drivers of yesteryear. I think my 12" Zenith 49CZ803's from the 1950's on the opposite side of the room have the sweeter tone.