6 ohm dual coil
Printed From: the12volt.com
Forum Name: Car Audio
Forum Discription: Car Stereos, Amplifiers, Crossovers, Processors, Speakers, Subwoofers, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=39280
Printed Date: April 28, 2024 at 11:06 AM
Topic: 6 ohm dual coil
Posted By: jarvy
Subject: 6 ohm dual coil
Date Posted: September 17, 2004 at 1:45 PM
hey guys, im gonna be running 2 15 DVC 6ohm subs. im woindering how i should wire these in order to produce the most wattage going ot each. my amp is ma audio hk1397 specs are :
2 x 400W RMS @ 4 Ohm Stereo
2 x 700W RMS @ 2 Ohm Stereo
1 x 1600W RMS @ 4 Ohm Mono
someone told me that this could run at 1.5ohm... if i run at 6 ohm will they sound really bad and not much bass?
you think this thing will run at 1.5 ohm? also, im building a ported box and i dono if i should add the recomended cubic foot values for each sub to create a box double the size, or just use the values for one sub for both?
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jarvy
Replies:
Posted By: forbidden
Date Posted: September 17, 2004 at 1:52 PM
I would not even think about wiring up these subs to 1.5 ohm mono. My bet is that this would send your amp to the old amplifiers home in the sky. Your safest bet is to series / parallel the subs to a 6 ohm mono load. Otherwise find yourself a fat class D mono sub amp that will run at 1 ohm mono. If they run at 6 ohm they will still pound, try it and find out. Post more info about the subs please. ------------- Top Secret, I can tell you but then my wife will kill me.
Posted By: Charles_R_H
Date Posted: September 17, 2004 at 7:46 PM
like stated above, series the voice coils, this will give you 2, 12 ohm loads, then parallel and bridge into the amp this is as close to running full power of the amp as you will get without burning it up or blowing fuses ------------- ELECTRONICS RUN OFF OF SMOKE, WHEN YOU LET THE SMOKE OUT THEY STOP WORKING
Posted By: xTimx
Date Posted: September 17, 2004 at 7:59 PM
screw that noise (pardon my language) i have 2 12" MA audio 12d6 subs, and i had them wired up to a 400S RF amp, wired in series parralel bridged to the amp. mounted in a sealed enclouser inverted. and it hammered hard. literally, the DB scale was 139.6 DB's i was very impressed. and you think they wont pound. shame shame shame on you man. where are you from anyways?!
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xTimx
Posted By: forbidden
Date Posted: September 17, 2004 at 8:11 PM
Here is how to wire the subs to this amp properly. It will be the safest load for this amplifier to power and it should pound just fine (depending on the box).
2 DVC drivers with Voice Coils in Series / Parallel
Connecting the two voice coils of each driver in series (+ to -) and the drivers themselves in parallel (+ to +, etc.) will result in the following impedances:
Two Dual-6 Ohm Subwoofers = 6 Ohms mono
Down below is how not to wire the subs, this will result in a 1.5 ohm mono load that your amplifier was not designed to run, thus something is going to smoke and smoke good.
2 DVC drivers with Voice Coils in Parallel/
Connecting the voice coils of each driver in parallel (+ to +, - to -) and the drivers themselves in parallel (+ to +, etc.) will result in the following impedances: Two Dual-6 Ohm Subwoofers = 1.5 Ohms mono
 ------------- Top Secret, I can tell you but then my wife will kill me.
Posted By: jarvy
Date Posted: September 18, 2004 at 3:48 PM
i have 8 connections on each subwoofer heres a diagram how i have it hooked up right now, i haev a box built too but it sounds REAL bad
  ------------- jarvy
Posted By: jarvy
Date Posted: September 18, 2004 at 3:49 PM
 ------------- jarvy
Posted By: jarvy
Date Posted: September 18, 2004 at 3:50 PM
Posted By: jarvy
Date Posted: September 18, 2004 at 4:11 PM
Posted By: jarvy
Date Posted: September 18, 2004 at 4:13 PM
Posted By: jarvy
Date Posted: September 18, 2004 at 4:15 PM
copy and paste links
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jarvy
Posted By: xTimx
Date Posted: September 18, 2004 at 9:22 PM
dont use that hook up diagram that you have. hook the subs up to the diagram that forbidden put up, (the first diagram) you'll be safe, and pleased to know the output of the subs as well. (trust us on this one)
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xTimx
Posted By: Charles_R_H
Date Posted: September 18, 2004 at 9:36 PM
LOL does anybody think there is a difference in a rockford amp and a m.a. amp????
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ELECTRONICS RUN OFF OF SMOKE, WHEN YOU LET THE SMOKE OUT THEY STOP WORKING
Posted By: 12-volt_guy
Date Posted: September 20, 2004 at 3:22 PM
Actually, since you are using a 2-channel amp that must be bridged if you connect all the voice coils together, wiring it parallel will not result in 1.5 Ohms, but instead 0.75 Ohms. A bridged amplifier sees HALF of the overall speaker impedance. So, even with the series/parallel wiring method, your amp is running at 3 Ohms, not 6. In this case, you might as well just keep the amp in 2-channel mode and wire each woofer's VC's parallel, thus resulting in the same 3 Ohms per channel. BRIDGED AMP: (1) 6-Ohm DVC wired parallel = 3 Ohms. (2) 3-Ohms parallel = 1.5 Ohms. 1.5 divided by 2 = 0.75 Ohms. (1) 6-Ohm DVC wired series = 12 Ohms. (2) 12-Ohms parallel = 6 Ohms. 6 divided by 2 = 3 Ohms. UNBRIDGED AMP: (1) 6-Ohm DVC sub per channel parallel = 3 Ohms (1) 6-Ohm DVC sub per channel series = 12 Ohms 3 Ohms is the best solution. There is no need to bridge the amp. -------------
Posted By: Ravendarat
Date Posted: September 20, 2004 at 7:28 PM
12 volt guy, you are correct that an amp will see half the load but when an amp is rated at say 2 ohm mono stable, then it is saying that I can hook up two 4 ohm voice coils in parallel and bridge the amp safely. Manufacturs take into account that most people wont know about the amp seeing half so instead of confusing the masses they just make life easy. I do agree that running the amp in 3 ohm stereo is about the best solution in this case, or you can do 6 ohm mono, it doesnt much matter.
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double-secret reverse-osmosis speaker-cone-induced high-level interference distortion, Its a killer
Posted By: thapimpfromchi
Date Posted: September 20, 2004 at 8:04 PM
either do what they told you, or you can go get one more of these subs, and then u can get an even 4 ohm load and wire them bridged.
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1990 Honda Civic HB:
Clarion DXZ545MP H.U.
2- 6.5" Power Acoustik interiors
Diamond Audio 600.1 amp
Diamond Audio 15" M6MKII
Pyramid PB881X 4 CH. Amp
Posted By: 12-volt_guy
Date Posted: September 20, 2004 at 9:16 PM
Ravendarat wrote:
12 volt guy, you are correct that an amp will see half the load but when an amp is rated at say 2 ohm mono stable, then it is saying that I can hook up two 4 ohm voice coils in parallel and bridge the amp safely. Manufacturs take into account that most people wont know about the amp seeing half so instead of confusing the masses they just make life easy.
That may be true, but his post stated the amp at 4-Ohms Mono. I find that most amps rate it this way for the reason you state: To avoid confusion. "4-Ohms Mono" implies that the speaker be 4-Ohms when connected in bridged operation. This is so the customer, when seeing that the amp is "2-Ohm Stable" doesn't try to connect a 2-Ohm load to it when it's bridged. Besides, people have a tendency to confuse mono and bridging, which are not the same. An amp can be run mono without being bridged and a system can have bridged amps running in stereo. Mono refers to the signal: Whether it is the same in both channels or has discrete information. Bridging is just the summing of channels together. A bridged amp does not put out any more power than a non-bridged amp. The power is determined by the load. If an amp is rated at 100 w/ch @ 4-ohms and 150 w/ch @ 2-ohms, then it is 300 watts bridged, not because it is bridged, but because it is seeing half of the 4-ohm load (2-Ohms), and 150 x 2 = 300. Just clearing this up for benefit of the novices. -------------
Posted By: jarvy
Date Posted: September 21, 2004 at 10:00 AM
no worries, i took those subs back, and bought a 1500 rms 4 ohm DVC VISOINK 15 inch woofer, modified my box to fit a single 15, man this thing pumps... ill have pics in a couple days. my box literally bounces in my trunk cause its not bolted down yet.
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jarvy
Posted By: Ravendarat
Date Posted: September 21, 2004 at 10:08 AM
Yes 12 volt this is true but when a company states that the power rating is given as 4 ohm mono you will also notice that the power rating is given at a rating x1 channel implying it is bridged. Also I understand that bridging and mono is different but you cannot get sub to be in mono on an amp unless you either bridge the amp or use rca y cables. Once again a company that makes this equpment understands what the masses level of understanding is which is why on almost every single amp you look when it gives a rating for 4 ohm mono it is the same as a rating for 4 ohm bridged because that is what the company is refering to. Now back to the question at hand............. Howdo you have this new sub woofer wired up, because I have a bad feeling its wired down to 2 ohms and that amp is not capable of doing that if you hooked it up bridged to the amp.
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double-secret reverse-osmosis speaker-cone-induced high-level interference distortion, Its a killer
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