Posted October 29, 200915 yr Hi, I tried to search for the answer to this question, but couldn't really find what I needed. I have a Zapco C2K 9.0 2 Ohm version. 2 ch amp. I want to run 1 BTL 18' sub. so my question is should I get the dual 1 Ohm and run each coil to a separate channel , or dual 1 ohm coils in series to 2 ohm amp bridged as 1 channel, also what would be the pluses, minuses of running 2 1000w amps to the same sub on different coils? which will work better? sorry for the noob question. and thanks
October 30, 200915 yr It's called bi-amping. As far as I know, it's fine to do.If you're planning on running two amps to a BTL, you'll have to get the dual 2 ohm version. Your amp isn't 1 ohm stable.
October 30, 200915 yr DO NOT I repeat DO NOT !! ever run separate runs of speaker wire to different coils on the same sub. which means, you don't run a different amp on each coil, and you don't use separate channels from the same amp on different coils. you need to get a dual 1 ohm sub, and wire it in series to 2 ohm and bridge it on the amplifier. yes, people have been known to run more than one amp on a single woofer, but that is when the amplifiers are strappable, there for they work together as one amplifier, and the wiring is a little different. you don't need to worry about that though, just bridge your amp in series to a dual 1 ohm BTL. nice choice of equipment though, hope you have the electrical to back it up!
October 30, 200915 yr His amp is 1000 watts @ 2 ohms though. Maybe he should get an amp that does 2000 watts at 1 or 2 ohms?
October 30, 200915 yr His amp is 1000 watts @ 2 ohms though. Maybe he should get an amp that does 2000 watts at 1 or 2 ohms?2200 rms at 2 ohm bridged..... http://www.zapco.com/prod/comp_prods/c2k90Frame.htm unless I missed something? Edited October 30, 200915 yr by mjmarovi
October 30, 200915 yr His amp is 1000 watts @ 2 ohms though. Maybe he should get an amp that does 2000 watts at 1 or 2 ohms?2200 rms at 2 ohm bridged..... http://www.zapco.com/prod/comp_prods/c2k90Frame.htm unless I missed something?Wow, dude. I TOTALLY spaced out on that one..No, you didn't miss something, my brain was just sleeping.
October 30, 200915 yr Author Cool, thanks guys, I think we are on the right path here. after rethinking the original question I think it really comes down to.....If I have an 2ch/1ch amp that does rated power for the sub should I run it as two coils to two channels. or two coils parallel to one channel. Thanks
October 30, 200915 yr Cool, thanks guys, I think we are on the right path here. after rethinking the original question I think it really comes down to.....If I have an 2ch/1ch amp that does rated power for the sub should I run it as two coils to two channels. or two coils parallel to one channel. Thanks did you not read my above post? YOU CANNOT run two coils to two channels, you will kill the sub. with that amp, the zapco 9.0 you have one choice, dual 1 ohm sub, wire in series, NOT PARALLEL to 2 ohms. you cannot wire coils on a sub separately, doesn't work that way!! alright man?
October 30, 200915 yr Author Cool, thanks guys, I think we are on the right path here. after rethinking the original question I think it really comes down to.....If I have an 2ch/1ch amp that does rated power for the sub should I run it as two coils to two channels. or two coils parallel to one channel. Thanks did you not read my above post? YOU CANNOT run two coils to two channels, you will kill the sub. with that amp, the zapco 9.0 you have one choice, dual 1 ohm sub, wire in series, NOT PARALLEL to 2 ohms. you cannot wire coils on a sub separately, doesn't work that way!! alright man?sorry didnt word that right
October 30, 200915 yr wire one of the pos (+) terminals on the subwoofer's voice coil to the (-) neg. on the other coil. then wire the pos. on the coil that has its neg. going to the other coil to the amplifier's positive. and wire the neg. on the voice coil whose positive is going to the other coils neg. to the neg. on the amp. yes, only one pos. and one neg. going to the amplifier in the designated "bridged" pos. and neg. location. understand? here's a diagramhttp://www.the12volt.com/caraudio/woofer_configurations.asp~Q~1~I~12 the second diagram, the one for the 2 ohm load is how you want to do it.
October 30, 200915 yr Author one coil to each channel, or both coils in series to bridged 1 ch output. sorry for confusion
October 30, 200915 yr Author ok, sorry for noob comment. I design, program and install Fanuc robotics for a living. I AM new to installing a killer SQ system in my car and want your input on 2ch to 2 coils or bridged to two coils paralleled. thanks
October 30, 200915 yr look at the diagram, how many times do I have to say do not run separate coils to separate channels?wire in series as the diagram shows, then you will have one positive and one negative wire going from the subwoofer to the amplifier. your amplifier will indicate where the bridged positive (+) and negative (-) are. now so that you don't get confused when you see it, the indication on the amp will have one of the positives from one of the channels and one of the negatives from the other channel. you just need the amp to indicate which. got it? if you have the manual to the amp it will have a picture for you, that's one of the perks for spending 2 grand on a 2-channel amp LOL. (sorry but c'mon great amp but really a waste for what you're using it for)
October 30, 200915 yr Author no waste, just looking to see if you guru's have come up with something better
October 30, 200915 yr Wire the subs like this:There should be two wires leaving the sub and going to the amp (positive and negative wire), look on the amp or manual and it should have something that points terminal in channel 1to a terminal in channel 2 that says these can bridge them together. Take the subwoofer positive wire and wire it in the positive bridging terminal on the amp, take the subwoofer negative wire and put it in the negative bridging terminal on the amp (basically your changing a 2 channel amp to run in 1 channel mode).
October 30, 200915 yr you already have the amp, so why not use the extremely clean power that it will be. just saying, there amps at 1/3 the cost that will do the same, and sound the same on a BTL when your beatin down the street.
October 30, 200915 yr Author I am trying to add the pics of my install, how do I do it????????????????????
October 30, 200915 yr you need to host them somewhere, like photobucket, then put the link in where the img icon is just above where you type in your message it has the little polaroid looking picture on it
October 30, 200915 yr I am trying to add the pics of my install, how do I do it????????????????????You can upload the images to your SSA gallery and use the image button on the posting tool bar to place the pictures link from your gallery.
October 30, 200915 yr DO NOT I repeat DO NOT !! ever run separate runs of speaker wire to different coils on the same sub. which means, you don't run a different amp on each coil, and you don't use separate channels from the same amp on different coils. you need to get a dual 1 ohm sub, and wire it in series to 2 ohm and bridge it on the amplifier. yes, people have been known to run more than one amp on a single woofer, but that is when the amplifiers are strappable, there for they work together as one amplifier, and the wiring is a little different. you don't need to worry about that though, just bridge your amp in series to a dual 1 ohm BTL. nice choice of equipment though, hope you have the electrical to back it up!You can run separate amps per coil and separate coils on different channels.
October 30, 200915 yr DO NOT I repeat DO NOT !! ever run separate runs of speaker wire to different coils on the same sub. which means, you don't run a different amp on each coil, and you don't use separate channels from the same amp on different coils. you need to get a dual 1 ohm sub, and wire it in series to 2 ohm and bridge it on the amplifier. yes, people have been known to run more than one amp on a single woofer, but that is when the amplifiers are strappable, there for they work together as one amplifier, and the wiring is a little different. you don't need to worry about that though, just bridge your amp in series to a dual 1 ohm BTL. nice choice of equipment though, hope you have the electrical to back it up!You can run separate amps per coil and separate coils on different channels.only way to run multiple amps to a woofer is to strap the amps, as long as they are strappable. as I said before. it is quite unwise to wire separate coils on the same woofer to separate channels or amplifiers, you will blow your speaker/subwoofer. I don't know where people get off on this idea, and have obviously never actually seen ppl try to do it in person. Edited October 30, 200915 yr by mjmarovi
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