Question about Legacy 2CH 1000W AMP Car Audio Amplifier

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Hooking up DVC subs

I've Purchased The LA2060 Amp To Power A New Set Of 12 Inch Volfenhag DVC 4-Ohm Subs. I"ve Seen A Few Ways To Hook Them Up.
Need To Know The Proper Way.
I'm Running Them In Stereo. Do I Need To Connect Both Voice Coils Up In Speaker Box Using A Jumper Wire To Connect Them Or Will That Drop The Load To 2-Ohms?
The Diagram In The Speaker Booklet Shows Only One Voice Coil Being Hooked Up To Run At 4-Ohms.

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The amp is rated to run a 2 ohm load on each channel. To do this, connect the voice coils of one sub in parallel (tie both "+" on the sub to each other and both "-" on the sub to each other), then connect that sub to one channel of the amp. Repeat this process for the other sub and connect it to the other channel on the amp. The subs will be in stereo and the amp will be outputting it's maximum power.

Posted on Mar 10, 2008

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It will depend on the capability of your amp. Each sub has dual voice coils (DVC). Each voice coil is (probably) 4 ohms. If your amp is a single channel, 1 ohm stable amp, you can connect all of the voice coils from both subs in parallel on the amp output. Other configurations will depend on the amp's number of channels and minimum resistance your amp can withstand.

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That amplifier is only rated at 150 watts at 4 ohms, or 300 watts at 2 ohms. Not a very strong amp to run 2 kicker comps. My guess is you have the subs wired wrong for your application. There are 2 types of subs, one is a dual 4 ohm, and one is a dual 2 ohm. Most people bridge these coils together and that cuts your ohms in half. For example. Lets say you have the 10cvr104 subs. Thats the dual 4 ohm sub. You wire the coils together in parallel, now its a 2 ohm sub. You have 2 of these subs running off of your amp, if they are hooked up in parallel, now you have a 1 ohm load, out of the amplifiers normal operation. Your amplifiers internals heat up really quick and there is a thermal overload, putting your amplifier into circuit protection mode. My suggestion for wiring your subs is as follows: for each speaker, wire the coils together like this- positive coil1 to negative coil 2 and negative coil 1 to positive coil 2. That is called running in series, and doubles your ohm load. Next, we need to wire the speakers together properly to hook up to your amplifier. For this, since the coils are hooked together, you only need to use one set of terminals from each sub. And take the positive from sub 1 and hook it to positive of amp. Take negative sub 1 and hook it to positive of sub 2. Take negative of sub 2 and hook it to negative of amp.

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JL Audio Amp. My amp all of the sudden started cutting in and out. It's an older amp and I've never had issues with it before. I've checked all the wiring and the fuse it all seems fine. Any...


you need to determine what impedance the amp is running at ,how many spekers ,most 2 channel amps will only run 2 4 ohm subs per channel and only 1 4 ohm speaker in bridge ,Basically if you have 2 4 ohm speakers bridged at the amp it will usually cut in and out .Some amps will not do this for a while and will work for a while at low impedance but once they get older and hot and cool off many times they will then only work for the intended ohm load ,Do you have 2 speakers ,if so make sure 1 is on left channel and 1 is on 2nd channel (should not cut off ) if it is a mono amp ,make sure you are only running 2 4 ohm subs and not dvc speakers (these will run 1 ohm and shut the amp down ) there are ways of wiring more speakers or dvc speakers ,I can explain but I need to know what product you have .

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1 Answer

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Hello jtkpay,

Rockford-Fosgate claims their latest V-power 1500bd is stable to 1 ohm, and I would think that your Oldschool would also be. The 2 wiring options for 3 subs with 2 ohm dvc would give you a 1.34 ohm load and a 3 ohm load. The 1.34 ohm option would mean more watts to the subs, but the amp will run hotter. The diagrams look like this:

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Using just 2 of the Kickers, you can wire 3 different ways, with final impedances of 0.5 ohms, 2 ohms, or 8 ohms. You do not want the 0.5 ohm load. It's bad for the amp. You don't want the 8 ohm load. It doesn't allow the amp to produce as much power. So that leaves only the 2 ohm, with coils in series and subs in parallel. It looks like this:

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Hope this helps. If it does, please rate as "FixYa".

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