Question about Alpine SWR-1542D Car Subwoofer

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Recommended Amp? Highest Watts you would run to it?

I have an MA Audio Amp rated at 950 watts, but i can't turn the gain up very high, and i was just wondering, if i had a better amp, if it would get me more watts without having to turn the gain up too high?

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The amp is rated at 950Watts that is about 75amp.@12volts. check the battery and the alternator rating. you can't pull full power from the battery, that will prevent the car from starting.
add up all of the amp from all of the fuses in the fuse box, and subtract that from the battery rating , that is the max power the amp will get.
your have to turn up the gain because of the low power.
so, if you change a amp with better rating, you still have to turn up the gain.

Posted on Apr 17, 2009

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Posted on Jan 02, 2017

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I have aiwa nsx-kt9 speakers.kindly tell me how much watt amplifier will be right for these speakers


These speakers are 6 OHMS, that means you can only use an amp that is rated for 6 ohms. The original amp put out 20 watts (rms). Any amp rated above 25 watts per channel could do serious damage to the speakers if turned up to the highest levels.

Apr 07, 2017 | Aiwa Audio Players & Recorders

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Speakers cutting in and out at high volume


The amp is going into protect on the two channels powering the speakers. Turn down the gain on those two channels. You also may want to consider crossing over the speakers a little higher than they are now.

The rating on those speakers are way too high. 6.5's and 6x9's will take 50-100 clean watts tops before they start to break up.

The best solution to get it perfect is....unplug the subs. Turn the gain on the speaker channels all the way down. Then turn up the deck 80% as high as it will go. Play a song. Then increase the gain on the amp until the speakers are as load as they go without distortion. Shut off the car, replugg in the subs and do the same thing. Gain on sub channels all the way down, deck then to 80%, find a bass heavy song, then turn gain up until subs become distorted. If you do this procedure your speakers and subs will be "gain matched" to the proper levels.

Good Luck

Dec 07, 2013 | Kicker IX500.4 4-Channel 500 Watt Car...

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I have a audition 150 watts x 2ch bridgeable high power amp serial # 00400274 need size of inline fuse. does not show size of fuse on diagram


hi.

if it is 150 watts TOTAL power then you should use a 15 amp fuse.
(150w / 12v = 12.5amps, 15amp fuse should provide the correct protection.)

if the system is 150 watts PER CHANNEL. then it will be 300 watts total and a 30 amp fuse should be used.
(300w / 12v = 25 amps. 30amp fuse should be used.)

30 amp is normally the highest fuse recommended for an car audio system, so i would not use higher than this without taking the unit to a qualified auto electrician, to get the system checked for safety. if you have any further questions please feel free to ask.

Jun 07, 2011 | Car Audio & Video

2 Answers

I have brought these speakers, when i turn the headunit up above about 3 quaters of the way they distort, they are running off a 4 channel 4ohm amp with 400watt rms but they do it with the gain on the amp...


If you run the power amp at a very low setting it makes the amp subject to noise and distortion. You want around a 60% setting.

Speakers also need to have proper loading, that is in a cabinet or enclosure that is kind of matched to them. If the amp is rated at a true 400 Watts RMS then the speakers should be at least 800 Watts as they "cheat" on those SPEAKER ratings and MANY A SPEAKER IS BLOWN AS A RESULT.

Mar 21, 2011 | Cdt Audio HD-53ST Car Component System

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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

JL audio 250/1 not powerful enough for pioneer TS-W307D4?


you should move up to more power....underpowering subs is bad! try not to go under the subs rms by 5o watts?

Jul 02, 2009 | Jl Audio 250/1 Car Audio Amplifier

1 Answer

Yes i have a 1000 watt amp and when i turn it on it stays on fine until the bass hits and then it kicks off then it kicks back on and the problem reaccures


I believe you have your gain on the amp turned up to high. Try turning the gain down, or if you have a LOUD button on your headunit turn it off
Hope this helps

Apr 06, 2009 | MA Audio MA 1200XL Car Subwoofer

1 Answer

Do you have instructions for wiring install on volfenhag GX8200??


Amplifier Class AB
Number of Channels 2
RMS Power (4 ohms) 120 watts x 2 channels
RMS Power (2 ohms) 200 watts x 2 channels
RMS Power (1 ohm) Not Stable
Bridged RMS Power 400 watts x 1 channel
Total RMS Power Output 400 watts
Peak Power Output 1000 watts watts x 1 channel
Minimum Impedance Unbridged 2 ohms
Minimum Impedance Bridged 4 ohms
THD at Rated RMS Power 0.1%
Speaker Level Inputs No
Preamp Outputs 1 pair
Built-in Crossover High-pass (HP), Low-pass (LP), Full (AP)
High-Pass Crossover Frequency 40 - 250 Hz
Low-Pass Crossover Frequency 40 - 250 Hz
Subsonic Filter N/A
Signal-to-Noise Ratio N/A
Channel Separation N/A
Bass Boost 0 - 18 dB
Bass/Gain Remote Yes
Fan Cooled Yes
Fuse Rating 20A x 2

Dec 24, 2008 | Volfenhag ZX-8200 Car Audio Amplifier

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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