Hi guys. So I've looked all over the internets on this one and I haven't been able to turn up much. Here's the situation. I have an old junky Sherwood sub that sounds pretty bad. I also have an orphan RBH bookshelf speaker that sounds pretty good. It turns out the RBH was a prototype speaker that I'll never be able to find again, so no hope in completing the pair (I live in Utah, near RBH factory, found the speaker thrifting, emailed the company, etc.) So I had the idea to replace the junky driver in the Sherwood with the nicedriver from the RBH. Same size driver, fits theSherwood perfectly (the magnet is about ten times heavier though). So here's where I'm sort of stuck. The sub is wired for dual voice coil, but of course the RBH driver is not. So I wired the RBH with one set, and then just taped up the other set and mounted the speaker. I tested it out and it works, sounds better than it did, but I was just wondering if I wired this thing in the optimal(or only) possible way. Is there another way to wire this? If not, what is the result of leaving one set of wires unused? I'm really just looking for an explanation of what the heck is going in there given this particular set up. (Note: I know that at bottom, the fundamental point here is: there's no good reason to do this anyway, so who cares? But think of it like we're in the laboratory, and I don't care if we make a mistake for the sake of learning something new.
Question about wiring single voice coil driver to double coil sub...
- Thread starter njm
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I think that's the best way, given what you have. While you will only get the bass that's on one channel of the program, bass is usually (but not always) equally mixed.
Whatever you do, DO NOT connect both the left and right channels to the same voice coil at the same time. As Sala says in "Raiders of the Lost Ark", "that would be very bad".
Tape up the unused connecor inside , both to insulate and to prevent rattles.
If you're driving from a receiver with a sub output, these are usually mono (x.1), and summed at the receiver so you don't miss a channel.
Whatever you do, DO NOT connect both the left and right channels to the same voice coil at the same time. As Sala says in "Raiders of the Lost Ark", "that would be very bad".
Tape up the unused connecor inside , both to insulate and to prevent rattles.
If you're driving from a receiver with a sub output, these are usually mono (x.1), and summed at the receiver so you don't miss a channel.
Okay. Got it. Is it possible that it's a mono amp and that the wires just go to the same place? Either way, I'm guessing it's ill advised to hook both sets of wires to one voice coil. I think I'm probably getting as much as I'll ever get out of it now, which is fine. More of an experiment than anything else.
swechsler
Frog Whisperer
If it's a powered subwoofer then chances are pretty good that the amp is mono - there would be no benefit of having a two channel amp; would make more sense to sum the channels first before amplification. Is it possible that the driver in the Sherwood sub is not original? I don't know why a manufacturer would use a dual channel voice coil in an active sub.
whoaru99
Epic Member
^^^
I don't necessarily disagree in theory, but then why would there be two sets of leads from the board(?) rather than just jumpers at the DVC terminals.
Or, on the other hand, could it a servo system? Possible yes; but plausible?
Pictures of the amp and driver might help eliminate the guesswork.
I don't necessarily disagree in theory, but then why would there be two sets of leads from the board(?) rather than just jumpers at the DVC terminals.
Or, on the other hand, could it a servo system? Possible yes; but plausible?
Pictures of the amp and driver might help eliminate the guesswork.
Justin Brady
New Member
I've not seen a sub amp wired with 2 separate sets of leads, normally it's a summed input and the dual voice coils are used to give wiring options for multiple woofers or multiple impedance's to match amplifiers.