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75.103.128.242
hey everyone!
who wants to help me make some highest fi possible stuff out of my old junk?
i have a pair of peavey SP1's, and a pair of SP2's.
trying to decide who to do here. im building a system for my pole barn/shop. its finished on inside, has not the worst acoustics.
i am powering with my old band PA system. so i have infinite watts, and pa rack gear including DSP. also supplementing the bass with a peavey SP218 cabinet. the whole thing is out of hand. so lets have fun with it. i have spare newer black widow drivers, selenium 1" compression drivers...and a myriad of other stuff laying about...not afraid to buy new drivers. i do not drive this system to stupid volume levels. just jam out while doing wood working and stuff in the shop.
Lover of Folded Horns, Weird Gear, and Hifi. I also play bass..dont hate me for that.
update to this original post i made over in the speakers area (they told me to try here)
i just bought these old Peavey's, and i dont know what they are.
any input on that too??
Lover of Folded Horns, Weird Gear, and Hifi. I also play bass..dont hate me for that.
Follow Ups:
You won't find any information about those Peaveys, but they're basically a dual woofer version of the JBL 4560A, which you can find. To determine suitable woofers you'd reverse engineer them with HornResp software.
Bill, thank you very much for your input. Will that software help me understand what the cabinet was tuned to as well?
If you were doing this project, which set of enclosures would you choose?
FYI, I'm a pretty big fan. I have purchased almost all of your enclosure plans!
Lover of Folded Horns, Weird Gear, and Hifi. I also play bass..dont hate me for that.
That software will tell you exactly what the response is, but it takes time to learn how to use it. If your shop has echo problems I'd be using a line array, either SLA Pro or TLAH Pro, depending on the size of the room.
I opened up the CSP units. The CD Horn has an EV1823M midrange driver.
I'm curious, why on these does this cabinet have a 15 and a 12 sharing the same airspace, then a midrange CD horn ?
I'm thinking about putting these CD horns in my SP1's. Then adding a super tweeter up top. Is that dumb? These horns can be crossed as low as 300hz easily. SP1 woofer 55-300hz, CD horn 300-8khz, super tweet 8k and up ?
Thoughts, opinions?
Or would new drivers, and a tweeter on the big CSP cabs be a better end result ?
I have subs for low end, and DSP to do all the crossovers and such.
Lover of Folded Horns, Weird Gear, and Hifi. I also play bass..dont hate me for that.
CSP stood for "Commercial Sound Projector". They were made in the mid to late 70's. Before that, their PA cabs were columns.I always questioned why they used a 15" and a 12" sharing the same airspace as well.
If I'm not mistaken, the crossover was a simple High-Pass filter for the horn, and the woofers ran fullrange.
The HF driver was an EV 1823M, basically a siren driver with not much response above 8kHz..
It was a midrange screamer.
Edits: 10/15/23
If it has a twelve and fifteen sharing the same rear chamber air space it means the designer didn't know what he was doing. You might be able to salvage it by loading it with a pair of twelves, but it's probably not worth the effort.
Thank you Bill. I kind of suspected as much. Good news is, I have plenty of parts and cabs. I can surely build something good from the rest of the stuff. Should be fun.
Lover of Folded Horns, Weird Gear, and Hifi. I also play bass..dont hate me for that.
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