They said it couldn't be done... A lot of "professionals" told me I was crazy and there was no way to do what I wanted. I've posted this before but I am just so proud of it and for new people who haven't seen it. Maybe to inspire others to create what they want.
I purchased the blank cab from TRM guitar cabs (excellent quality). Originally the cab was built for 4 12". But I had other ideas. It's loaded with 2 10" vintage Rola, 2 6x9" from vintage47amps and 1 12" Weber. I did all the speaker cut out and made the switch panel with a dremel. At the time I didn't have a good router. It was a little bit of a pain but I enjoyed it.
The switches in the back control everything (of course). The 2 10" can be run independently, wired so that I can run them series or parallel. The 6x9" and the 12" are wired so that I can run them together in series or parallel. I can also run them separately. So, I can run one amp, two amps or three amps into the cab at the same time. The switches are recessed so that the cab can lie flat on it's back. The back panel has three section so that you can open it up if it gets to dark. Also included LEDs to light everything up just for the hell of it.
How does it sound? Ridiculously good. Everyone who has heard heard it can't really believe it. One of my favorite ways to run it are with two amps withe a little ping pong delay. It really opens up some interested sonic possibilities.
I built a little circuit to pulse one of the LEDs. Once again, just for the hell of it.
Buzadero, I've thought about it... But I do don't think there's much of a market for this kind of thing.
I can't tell you how many people told me that I would never be able to wire this up and make it work. I talked to full time guitar/harp amp builders, guys that do home and car stereo systems, cab builders and electronic wizards. People on this board. And most of them called me crazy and a few told me I was just plain stupid for not listening to them.
Last Edited by shbamac on Feb 07, 2016 12:56 PM
I am just guessing here, but I think it is a good thing you were told this could not be done. For many people, that is a great motivator. It is a much better motivator than being told that it is possible, but will take more effort than it is worth.
When evaluating the "worth" of the project, keep in mind that the skills, confidence and experience you gained are yours to keep irrespective of what may happen to the cabinet.
I don't know why its doesnt seem to hard. Just time consuming. But a great idea. Ive done some experimenting with speaker combinations. Its pretty amazing how differnt a sound you can get by switching around the order and the way in which they are wired. Ive got a whole crate full of different speakers. This is a great idea. I wouldn't have to constantly rewire things.
Some of those magnets look awful big. I was under the assumption that for a good OD sound you would want a lighter magnet. But i suppose they could be for a clean sound and the others dirty. Running them both at the same time from different amps could be interesting. Whoa. ** Mind Blown **
I'm totally stealing this idea BTW. ---------- "Trust Those Who Seek The Truth. Doubt Those Who Say They Have Found It."
Last Edited by Killa_Hertz on Feb 07, 2016 1:35 PM
"Some of those magnets look awful big. I was under the assumption that for a good OD sound you would want a lighter magnet"
Not true! That's a another discussion!
The Rola's are 15 watt max each, the Vintage 47's are 25 watt each and Weber 25-30 watt guessing. Roughly a 100 watt cab.
Last Edited by Harpaholic on Feb 07, 2016 7:37 PM
With the back closed the active driver will make the other cones into passive radiators, and signal generators! The more you think about this the more psycho it becomes...BN
Killa, the magnets are not that big. Harpaholic is right on with the speaker wattage's. The Weber is 25 watts (if I remember correctly). It didn't seem impossible, but it did take a while to figure out how to wire it up. When I began this build I didn't know much about how to wire speakers up and much less about ohms.
The two main ideas behind this build were the ability to run more than one amp and a wanted a very dark cab. The main function/idea with the speaker cut outs is to knock down the highs, secondary to look cool. And they do both very effectively. I built a few different baffles, including a "standard" open design. This one was the best sounding one (to me).
shakeylee, I still have to get the meter out every once and awhile...
Barley, yup. Bleed through was a concern before I began and I was planning on building a divider. It's not a bad thing and the divider was ditched.
The cab is now 3 or 4 years old, loving it more and more every year.
Last Edited by shbamac on Feb 08, 2016 7:24 AM
