Question about Lanzar OPTI1222D Car Subwoofer

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Soundstorm amp what load should i wire the subs for 2,4,or 8

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I wrote it in my solution to the original question.
You are shooting for a 4 ohm load.
so a single 4 ohm driver, a dual 2 ohm driver, or (2) dual 4 ohm drivers will do the trick.
Bridge the amplifier @ 4 ohms to get the most power.

Posted on Jan 08, 2009

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Posted on Jan 02, 2017

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I installed the MTX Audio JackHammer JH300 600W, Class D in my truck. Powering two alpine type-s 10' subs. Im using a 50a fuse at the battery. 8 gauge B and ground. I had the subs working went for a drive...


Your amp should not have a 50 amp fuse at the battery. It puts out 300 watts RMS (continuous power). The fuse at your battery should match the one that is on the amp itself. Your amp is overheating and there is a fault, possibly your speakers are wired to present too low of an impedance to your amp. Disconnect them from your amp, and use an ohmmeter/multimeter and measure the resistance load. It should not be lower than roughly 2 ohms. Depending on whether you bought dual 2 ohm or dual 4 ohm subs, that could be the heart of your problem.

If you bought D2 subs, you can get a 4 ohm load per sub with each sub's voice coils in series, and then parallel them together to get a 2 ohm load at the amp, which is perfect for your amp. Or you can wire each sub's voice coils in parallel, so that they're 1 ohm each, and then series them together at the amp for a 2 ohm load. The first method is simpler. Be sure that you haven't wired each voice coil in parallel (1 ohm per sub), and THEN also wired both subs in parallel to the amp (1/2 ohm load). That would definitely send your amp into protection mode, probably before it would have a chance to overheat. This is another reason why you should not have used a 50 amp fuse under the hood. If for whatever reason, the fuse on your amp doesn't blow, the amp is getting way too much current for it to handle, because of that 50 amp fuse under the hood.

If you bought D4 subs, you have a problem. If you've wired each sub's coils in parallel (2 ohm per sub) and then wired both subs together in parallel at the amp (1 ohm load) you're presenting too low of a load to your amp. Again, this will overheat your amp and send it into protection mode, both of which are what you're seeing. You never want to have two D4 subs with an amp that only handles 2 ohms, because you can't get a 2 ohm load with two D4s. You're stuck with 4 ohms or 1 ohm. 4 ohms cuts your amp power in half, 1 ohm cuts it off completely.

If you know for sure which way you've wired them, then you now have the information to tell you whether you've done it incorrectly or not. If you're not sure, first disconnect your subs and measure the resistance as I described in the first paragraph. If your amp is seeing a 1 ohm or 1/2 ohm load, there's your problem. If you see a 2 ohm load (subs are wired correctly after all) then you may have a bad ground connection, or your amp is bad and needs to be serviced/replaced.

Nov 15, 2017 | MTX JackHammer JH300 Car Audio Amplifier

1 Answer

Loads


Hello ronnieyannon,

Yes. As long as the subs are paralleled, the final load is 2 ohms.

Hope this helps.

Oct 15, 2009 | Alpine MRP-M500 Car Audio Amplifier

1 Answer

4000.1 soundstorm amp


Hello GregV24CHOPP,

The Soundstorm products are in about the same category as Boss, Visonik, Pyle, and Lanzar to name a few. Somewhere between overrated and definitely overpriced for the quality you get.

Look into the Alpine MRP-M1000. RMS = 1kW into 2ohms (600 into 4ohms), YES 4 OHMS(!), real power. No, it WON'T do one ohm. But most of those claiming to are not CEA2006 compliant anyway and can claim any power at any load and advertise for whatever buyers they can attract for their bottom-of-the-barrel products.

The MRP-M1000 is currently on sale at Crutchfield for only $347. Awesome power, and very good sound quality, too. I'm currently running 2 4ohm MTX Thunders off of "little brother", the MRP-M500, and they really shake the pavement.

You have to spend good money to get good power, there is no way around that.

The only wiring configurations for 2 2ohm DVC subs result in 0.5ohm, 2ohms, and 8ohms impedance. Check the Rockford-Fosgate "wiring wizard" for the different diagrams.

Hope this helps.

May 13, 2009 | Soundstorm CR4000.1 Car Amp

1 Answer

I NEED DIRECTIONS ON HOW TO CONNECT MY AMP TO MY CAR


We'll start with powering the system up. YOu will need to run your power wire from the battery. It must have a fuse just after the battery. Run the negative to the chassis of the vehicle. On the back of the radio, there will be a blue wire labeled remote/antenna. This wire needs to be connected to the amp. This is what turns it on and off when you power up the radio. Next you will need to run the RCA cables from the back of the radio to the amp. Now you are ready to hook up the sub woofers to the output side of the amp.

Mar 27, 2009 | Soundstorm 500.2SL Car Audio Amplifier

1 Answer

Soundstorm amp


Your D-SERIES amplifier was designed to operate efficiently at loads down to 2 Ohms.
This means that you can install four 8 Ohm speakers per channel when using parallel wiring.
of an additional 10W to each speaker.
Please note: The gain control of any car audio amplifier should not be mistaken for a volume
control. It is a sophisticated device, designed to match the output level of your audio source unit to
the input level of the amplifier . Do not adjust this input level to maximum unless your input level
requires it. Ignoring these instructions will result in an input overload to the amplifier, and excessive
2 Ohm Operation
front panel will be illuminated, indicating the amplifier has gone into a self-preservation mode.
these conditions before attempting to power up the amplifier again.
When operating at 2 Ohms, the amplifiers will increase their output power by approximately 50%. The
current draw will so increase by about the same amount, also be sure you have enough current to
run the amplifiers into a 2 Ohm load. If you lack adequate current, your music reproduction will be
distorted.
Increasing the number of woofers per channel at low frequencies (up to 100MHz) produces an acoustic
coupling effect. This acoustic coupling increases your power output by 3 dB per speaker, or the equivalent
audio distortion. It can also cause the protection circuit to engage.

Jan 07, 2009 | Soundstorm Force F2800 Car Audio Amplifier

1 Answer

Can u help me


The amp probably has shorted outputs. Do you want to try to troubleshoot it and repair it yourself?

Nov 22, 2008 | Soundstorm D500.4 Car Audio Amplifier

1 Answer

How can i get a 2ohm load outta 2 4ohm dvc subs can you show me how to wire the amp as well it says on the amp its 2ohm stable


A normal wiring setup to produce a 4-ohm load is what you usually see - each speaker is wired to one channel of the amp. This is series wiring. To get a 2-ohm load, you need to wire in parallel. Here's how:

Take sub A and wire the positive terminal to the positive terminal of channel 1 on the amp. Wire the negative terminal of sub A to the negative terminal of channel 2 on the amp. For sub B, it's the opposite - positive terminal of sub B to the positive terminal of channel 2, and the negative to the negative terminal of channel 1. That's parallel wiring, and will produce the 2-ohm loading (and subsequent increase in output) that you're seeking.

Aug 28, 2008 | Jl Audio Car Audio & Video

1 Answer

Amp has Red LED light on.


Disconnect all speaker wires and signal cables from the amp. If it powers up, the wiring needs to be checked. If it still shuts down, the amp likely has blown output transistors.

Nov 05, 2007 | Soundstorm F2600 Car Audio Amplifier

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