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Two amp heads, one cabinet?

OK, Now I see. You’ve got a stereo Rick and want to use the Rick-O-Sound output and equalizing each pickup for a separate/different tone. You need to run each output L/R from the bass to its own eq (say 2 different eq pedals) then combine the 2 eq outputs with a A/B/Y pedal such as the Morley, then mono to your single amp head and single speaker output to one cabinet input.
 
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The only way to do it is with something like this, otherwise you'll fry your heads. This is assuming you want to be able to use both amps at the same time and switch back and forth

Headbone VT - Radial Engineering

View attachment 4385130
Well, that is actually what I am trying two do, I have two jack's on my bass and I have an a/b/y a witch. I new on the cabinet I used to have I couldn't have done it but it didn't have 2 inputs. But I was this cabinet online that had two inputs and I was hoping I could save money by notrunning two amps into one cab. In your picture it looks like what I'm tying to do.
 
OK, Now I see. You’ve got a stereo Rick and want to use the Rick-O-Sound output and equalizing each pickup for a separate/different tone. You need to run each output L/R from the bass to its own eq (say 2 different eq pedals) then combine the 2 eq outputs with a A/B/Y pedal such as the Morley, then mono to your single amp head and single speaker output to one cabinet input.
Thanks that is the set up I have, a Ric, an A/B/y pedal, one amp and one cabinet. I just wanted to know if I could add another amp and run them both into the cabinet I thought cuz there were 2 inputs it might work but obviously not
 
As you can see by the responses, it's a no. But, just curious what 2 amps you were looking to use and what were you hoping to achieve by doing it?
I just wanted to run my rickenbacker into two amps so the pickups sound different, and I have and a/b/y switch pedal and two jack's on my bass. But now I know I can't. What I was gonna do was use the darkglass alpha omga head I have and was thinking I'd get a distinct sounding head like a orange head or something. But now I know that's stupid, so instead I'll maybe try just two different preamp into the head. I thought maybe I'll run one channel thru a darkglass harmonic booster and keep it clean, and then the other into maybe a darkglass vintage pre amp or maybe there's an a range preamp that's cool. I mean I got the darkglass head because I wanted the alpha omega pre amp, so for now that will work till I figure out what else to do. I got this bad that has rhe two pickups cuz it seemed cool at the time, but in the end its kind of expensive to do what I thought I might do with it. But I can still put different pedals on it or something.
 
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I was wondering this too, and found an earlier thread by OP in which he said he had just bought a Ric with stereo output (one channel per pickup). So my guess is that what he really wants is a way to EQ the two channels separately before sending the signal(s) to a cabinet.
Yes that's what I was thinking, i used to know a good local bass player back in the day that ran his bass through two amps, but one was a combo and one was a cabinet. I was thinking I might be able to do the same juat using two heads and one cabinet.
 
I just wanted to run my rickenbacker into two amps so the pickups sound different, and I have and a/b/y switch pedal and two jack's on my bass. But now I know I can't. What I was gonna do was use the darkglass alpha omga head I have and was thinking I'd get a distinct sounding head like a orange head or something. But now I know that's stupid, so instead I'll maybe try just two different preamp into the head. I thought maybe I'll run one channel thru a darkglass harmonic booster and keep it clean, and then the other into maybe a darkglass vintage pre amp or maybe there's an a range preamp that's cool. I mean I got the darkglass head because I wanted the alpha omega pre amp, so for now that will work till I figure out what else to do. I got this bad that has rhe two pickups cuz it seemed cool at the time, but in the end its kind of expensive to do what I thought I might do with it. But I can still put different pedals on it or something.

Maybe pick up a second cab as well as a second amp... a Rick into two amps/cabs was how Chris Quire got his very distinctive Rick sound, one pickup clean, one with some power tube overdrive I believe. I think he used a guitar amp for the bridge pickup.
 
If it's a mono cab, it can't
If it stereo cabinet, i. e. two separate circuits, it can.
What cab do you have? Possibly you can modify mono cab into stereo. Some soldering, some woodworking, nothing complicated. Prerequisite: it must have at least two drivers.

More important prerequisite is that the "stereo" inputs be fully isolated, both the + and the - must remain isolated because some amps - terminal are not ground referenced. Failure to do this would result in expensive magic smoke from one or both amps.
 
Thanks that is the set up I have, a Ric, an A/B/y pedal, one amp and one cabinet. I just wanted to know if I could add another amp and run them both into the cabinet I thought cuz there were 2 inputs it might work but obviously not
Nope, and it's good you discovered it this way as well.

Edit : I plan to run two pre amps into one amp head, instead of two amps into one cabinet
Much better and safer plan.
 
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If a cabinet has two parallel inputs does that mean it could handle two different amp head simultaneously? I have two jack's on my bass and thought I could process the signals separately then send to one cabinet. Maybe people do this all the time and it's a dumb question, I've never heard of it though so I thought there may be a good reason not to.

Never parallel two amps into one cab. That said, my Ampeg 810 has a dual split input where you can run two separate stacked 410 cabs (8 ohms each) OR one 810 (4 ohms). Obviously you would NOT parallel the 810 with two amps (two cabs, sure).
 
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That's good advice, I didn't realize pre amps added that much wattage. The eq pedal is a good suggestion, obviously that's gonna be safer than just an A/B Y. That's what I have so far, but I think what I'm gonna do is just use the A/B Y to combine the two pickups together, going into the one amp for now, and then when I get some more cash, I'll buy a pretty big combo amp so I can have an amp for each pick up. Ive even heard of using a guitar combo amp as the second amp.
I'm thinking if I use two amps, it's gonna make it all the more louder, like right now I didn't have enough to get a full cab, so my head has way more wattage than my cabinet can handle. but I'd I can find a used combo amp that will be a quick way to add some wattage and make it louder, and to add a new tone
 
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Maybe pick up a second cab as well as a second amp... a Rick into two amps/cabs was how Chris Quire got his very distinctive Rick sound, one pickup clean, one with some power tube overdrive I believe. I think he used a guitar amp for the bridge pickup.
That a what I read too, about the guitar amp I mean. That's what I've decided I'm gonna do, get a combo amp, possibly a guitar amp, to use as the second amp I just don't have the money for a second amps cabinet , but I will someday soon have at least enough for adding combo amp.
 
Does anyone test this Two Amps One Cab pedal ??

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