Re: Acoustic 360 preamp/folded horn

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Posted by G3 on January 04, 2001 at 12:11:16:

In Reply to: Acoustic 360 preamp/folded horn posted by air cut light on January 03, 2001 at 12:46:44:

: Hey, I'm probably going to be picking up an old acoustic 360 preamp and folded horn/cabinet (with the 18" set backwards and the amp inside). I think I'm getting really lucky because it's a friend of a friend and the guy just wants to get rid of it, so I'm going to pick it up for something like 300-250. I've played it with a jazz bass with flatwound dead strings, and it sounds good, but I don't know how it'll sound with my Rickenbacker. I've got the preamp now, so I'll be able to see what it sounds like with roundwound strings that are a little brighter, but I'm home for break and I haven't got my bass with me. I try to get my sound as close to Chris Squire's sound on the early Yes records. How well will this amp do that?

: If the 360 will lack top-end punch, I've got another option. I have an old acoustic 150b and a 2x10 cab I made last year. I was thinking I could run from the preamp into the 360 cab and the 150b head, then have that head power the two tens for more high end stuff. Other setups would allow me to run the fuzz channel on the 360 while the 150b stayed clean. I'd get an extra 125 watts and the final stack would end up being massive. Any thoughts?

: Finally, there's an analogue tuning fork on the preamp, and I was wondering how in the heck is that supposed to be useful? There's no indication as to what frequency it starts at (I think, though, that with both of the knobs cranked it's an E), and no way to tell what note it's playing aside from your bass, which might be out of tune. Is one supposed to set it before the show at some pitch, (A440?) and then flip it on later on?

: Thanks for your help!

: Andrew

Hey Andrew,

I too had an Acoustic 360 back in the late 70's playing in disco lounge band (bass players had all the fun back then). I played a Fender P-bass (I owned a Ric 4001 and Chris Squire was my hero too) through it and always struggled to get the higher register articulation that my SVT owning contemporaries had no problem with.

Then one day when we were setting up, while trying to accommodate a tight stage situation, I flipped the cabinet 90 degrees. The cab was about chest high, using a restaurant tray stand, it hung over into the adjacent booth next to the stage.

The change in my sound was dramatic. I remember our guitar play turning around and saying "what the hell did you just do"? I can only guess that those longer bass sound waves we simply going over and under me (via the folded horn design) to where I couldn't hear them as well.

I used to pole musicians that came to see us as to how I sounded and they would mostly reply "man you sound great out here", which seemed to bolster my theory.

Anyway, the 360 as I remember not only had a e-tuning fork but also foot switchable distortion/fuzz. I never used those bells and whistles but hey, the amp was good enough for Jaco. Althought when I saw Weather Report/Jaco I seemed to remember he had a mixture of amps... I may be "all wet" on that one though. Also I believe Steven Rabe (of SWR fame) had a hand in the 360's design.

So, bottom line... it's a behemoth to lug around but I think your deal wasn't too bad. So flip it sideways and reply back to the group and let us know if my theory has the weight of that baby blue faced cab - Ha!

Good luck,

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