Question about Alpine IVA-D300 Car DVD Player

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Lights dim i have an Alpine iva d300 receiver,Earhquake eq,a Tsunami capacitor, Hifonics Brotus amp rated at 1500 rms watts and two kicker 12" cvr's...the problem is when the volume is turned up The lights dim including my headlights..but this only happens when i hardly turn up the eq volume(since the eq has a volume knob)if i turn it down i can hardly hear my subwoofers and as soon as i turn it a little all lights start dimming..is there anyway i could fix this..i grounded the amp to the chassis..i checked the connections on the batt and they are clean and screwed tightly..what else could it be..

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I don't know which capacitor you have but it suppose to be 1 farad for every 1000 watts rms you have. You can also get you alternator checked or modified to a high amperage. This should work.

Posted on Nov 02, 2007

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Hifonics colossus-ltd dual monoblock amp does not have much output, running a cerwin vega stroker dual 2 ohm sub wired 4 ohm load bridged


Bridge at 4ohms your only getting 600watts rms. You will need to bridge at 1ohm (parallel) and adjust the gain accordingly. This will give it 1600 watts rms. If you would of had a dual 4ohm sub, then you could of bridged it at 2ohms mono, but you can't you have to go either 1 ohm or 4ohm. I believe it's not getting enough power.

I’m happy to help further over the phone at https://www.6ya.com/expert/chris_7f7f91eb941fb23f

May 20, 2012 | Hifonics Colossus-ltd Dual Monoblock 3200w...

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I have 2 12 inch jl audio w7's with a kicker crossover and a powerbass equalizer 5 bands. i wanted to know if add a hifonics brutus 2100 d class amp to my subs at 1 ohm would it over power my subs. please...


Short answer: NOPE!

The Hifonics Brutus 2100 is stated to produce 2100 watts RMS @ 1ohm load. Most amplifier manufacturers overstate their claims. The 2100 watt output is most likely at 14.4 volts and not the 12.6 volts your car will actually be providing the amp.

But, even if the actual output was 2100 watts that would be 1050 watts to each 12w7. The 12w7's are rated at 1000watts RMS and 2000watts peak. As a MECP certified installer, any system I have done using 12w7's have had a MINIMUM of 1000 watts being provided to each speaker. My personal preference is to run 1500 watts each and keep the gains adjusted lower on the amp. Thus allowing the amp to run cooler and allow the additional headroom for those "show-off" moments!

Dec 22, 2010 | Hifonics Car Audio & Video

1 Answer

My system is running hot!!!!!


your subs are the problem, not your amp, your wiring your subs paralelle, means dropping input ohmage, allowing your amp to over heat with minimal load, check the amp specs for running at low ohms, most hifonics amps are rated 2 ohms and higher, some however will run at 1 ohm, only on class b-a amps though.(competition) dropping ohmage will allow the amp to push more power to the voice coils, however the voice coils may not be rated for 1 ohm power, what ohmage are your coils rated at? do you have a min. of 100 amp inline fuse on your 1-0 awg wire? do you have internal fans? you can add mosfets to the amp but if you do so, you'll have to re-program your amps mother board.

Jun 08, 2010 | Kenwood KAC-728S Car Audio Amplifier

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I just bought a kicker cvx 12' less than a month ago and im pushing it with a alpine mrp-650 which is rated for 600w rms and the sub is rated for 750 RMS and i only had the amp turned up half way and i...


Yes, only if you can prove it and believe me, they have so many loop holes now that they can pretty much do what they want. The fact is though, the RMS ratings on speakers can vary, but usually mean either Max watts or Normal (constant) listening range, depending on manufacturer. The other thing to mention is, to get the best sound out of your speakers, they say to put exactly half the watts of power to the RMS watts that your speakers are made for, just for future reference. Hope this helps some and good luck!

Mar 08, 2010 | Kicker CompVX CVX122 Subwoofer - 12" Dual...

1 Answer

What amp will push 2 kicker 15inch cvr's


Hello herb31,

Kicker lists the RMS power handling range of the CVR's from 100-500 watts, with a peak power capability of 1000 watts. There are lots of monoblock amps within that range. It just depends on how loud you want them and how much you want to spend.

In the low range, an amp like the Alpine MRP-M500 will deliver 250 watts to each sub at 2 ohms. And it only costs $179. Currently, the MRP-M500 is out of stock at Crutchfield. I just bought the last one. So my 2nd recommendation would be the Sony XM-1S, which has the same power rating and according to Crutchfield is no slouch either. It's also $179. I really like the Sony, too. It has a small footprint that makes it easy to find a convenient mounting location. Both the Sony and the Alpine are CEA-2006 compliant, so you can be sure that the manufacturer provided specifications are not overrated. Assuming that your vehicle electrical system can deliver the current, both the Sony and the Alpine will deliver an honest 250 watts RMS to each of your Kickers. And 250 watts will make them kick pretty darned good.

In the medium power range, consider either the JL Audio G Series G1700 which delivers 700 watts into 2 ohms. It costs $419 at Crutchfield. Or perhaps the Kicker 08ZX750 with 750 watts at a cost of $399.

To push the CVR's really hard, close to their 500 watt RMS maximum power range, look for an amp that delivers 1000 watts. In this range, you will definitely some heavy-duty wiring, electrical system upgrades, perhaps a 2 farad capacitor, and be ready to spend at least $600 on the amp. Your best combination of power and price would be another Alpine, the PDX-1.1000M, at $799. If you buy one from Crutchfield, they will throw in a 4-gauge amp wiring kit. And if you use a "friend referral code", such as mine, which is p7sdj-hrx8q-9800g, and your order is at least $200, you'll get another $20 discount. And I get a $20 credit toward a future order.

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

Apr 23, 2009 | Kicker KX1200.1 Car Audio Amplifier

2 Answers

What is best amp to run 2 12 inch cvr's


12In Kicker CVRs
are Dual Voice Coil, and You can run each voice coil around 200 Watts RMS

So each sub will have a 400 Watt RMS and 800 Watts peak.

Now since you have 2, Your total will be 800 Watts RMS and 1600 Watts Peak.

I would get really any amp that sits at around 800-1000 Watts RMS.

These are kicker but they are low end so i wouldnt push them to the extreme.

1000-1200 Watts RMS Max and but keep the Gain down on the amp. They will hit no doubt but i wouldnt push these subs or you will be disapointed in the long run.

I would get a Fosgate or MTX amp.

You can get any amp really but find something right around 1000 Watts RMS and it will push those well.

You can go mono block or a 2 channel, just depends on how you want to wire them.

Be careful though. If your running them bridged right now with your mono block, do not run them parallel bridged on a 1000w RMS Amp, you will blow them so fast lol

(RMS = Root Mean Square. Or in other words is the continuous wattage being sent from the amplifier to the subwoffers)

Feb 15, 2009 | Kicker KX1200.1 Car Audio Amplifier

1 Answer

How to order


The L7 I have is brand new in the box (not a speaker box just the retail packaging box) and the rms is 750 watts RMS and 1500 watts peak, but you are correct they blow easy when you push rated power to them, the hifonics subs will take 1200 watts rms all day long and over 3500 peak for burping at competitions, i run mine at 2000 watts everyday in a daily driver. if you hook 1 dual 4 ohm sub to a zx1000.1 it will be 2 ohm load on the amp so you will get 1000 watts to the sub so if you want to run it slightly underpowered to keep it from blowing use the 750.1 per sub, i can do those at about 250 each shipped

the price is 150 plus 10$ flat rate USPS shipping and yes I accept paypal Wyattconnolly@msn.com .

the warranty starts the day you buy it for 12 months but kicker will not cover burned or blown voice coils, that is why i recommended the hifonics (which is what i use to compete with now) because they put out better quality sound and alot more of it and they will take alot of abuse, if you want boxed speakers ready to go in kicker brand ported boxes I can have them drop shipped right to your door as well, the only reason i am selling the 1 L7 i have so cheap is because a customer ordered it then never paid for it so I am selling it at cost. be careful if you are buying on ebay as you have no warranty at all and you cant force the seller to give you 1 even if they say it has 1. because authorized dealers are not allowed to do internet sales at all so kicker and most other companies will not honor the warranties.

also you dont need 2 amps you can use 1 bigger amp and still run 2 subs just by changing how you wire the subs at the amp. 1 large amp costs less than 2 smaller 1's usually just not with kicker brand

Sep 15, 2008 | Kicker Solo-Baric L7 S15L72 Car Subwoofer

1 Answer

My subwoofer stops when volume is increased


have u check the radio out do u have an eq

May 19, 2008 | Kicker CVR12 Car Subwoofer

1 Answer

Sub+amp configuration


With a single 4-ohm subwoofer, usually the best choice is a 2-channel amp that can be bridged to a single channel. In your case, the sub is rated for 1000 watts. Not many amps are rated for that kind of continuous power into a 4-ohm load. Kicker doesn't list a minimum power rating, which isn't unusual in subwoofer specs. Depending on your budget, I'd look for an amp rated for 300-500 watts minimum; the higher, the better, up to 1000 watts. Most amps will have several power ratings, based on the load impedance and number of channels driven. A typical 2-channel amp might be rated like this: 150 watts x 2 channels at 4 ohms 300 watts x 2 channels at 2 ohms 500 watts x 1 channel at 4 ohms. The power rating you'll want to look at will be the 1-channel, 4-ohm rating. You can look at mono amps, too, but in the power ranges you're looking for, a 2-channel amp will probably give you the best value. However, if you can find a mono amp with a high enough 4-ohm power rating, it would run cooler and might last longer than a 2-channel amp with comparable power. When looking at mono amps, you'll find their highest power output will be at 2 ohms or 1 ohm; make sure you're checking the 4-ohm rating when making comparisons. Some amplifiers that might work well for you: Kicker SX900.2 Kicker ZX850.2 Alpine PDX-1.1000 Rockford T600-2 Hifonics ZXi 1006 Premier PRS-D2100T Power Acoustik OV2-2200

Jul 05, 2007 | Kicker C12-4 Car Subwoofer

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