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Car audio I recently purchased 4 new speakers for my car. 2 6.5's with 150 watss RMS and 2 6x9's with 300 watts RMS. What kind of amp do i need to power them without under or over powering them? And am i going to need 2 seperate amps?

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Depends on what sort of amp you have iv got american pro 1407

Posted on Jun 01, 2008

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Rms watts per channel @ 4 ohms


Take the peak to peak power rating and multiply it by .727
that should be the RMS watts.

You don't have to worry too much about new stuff, but if you are using an older stereo amplifier that is rated for 8 ohm speakers then you should not use 4 ohm or they will pop the finals in the amp.
You could use 2X 4 ohm speakers in series on every channel and it should be ok.

Jan 31, 2015 | Lightning Audio Car Audio & Video

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Best subs for the kenwood x812d


Try and match the rms output of the amp to the speaker , if the amp puts out 150 watts RMS make sure your speaker is at least 150 watts RMS.

Feb 03, 2014 | Kenwood eXcelon KAC-X812D Car Audio...

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Which speakers (Front/Rear) to buy that match Kenwood KAC-M846 4/3/2 Channel Amplifier.


I don,t no where you are reading thease articles from,I installed car audio equipment for over 40 years, Untill i retired a couple of months ago, Who ever is writeing those sort of articles does not have the slightest clue what they are talking about, It is the opposite way around, It is allway better for yor (Speakers) To handle more power then what your amp puts out, Then you will not blow the spaekers, It is best to get speakers at least 20 watts more then what your amps maximuin (RMS) Watts are, Hope this helps you out, (PS) 50 watts (RMS) Is what most people go for, It is in no means (Under) Powered.

Nov 05, 2012 | Kenwood Kac-m846 4/3/2 Channel Amplifier...

1 Answer

How many watts does this amp put out


50 watts RMS x 4 at 4 ohms (75 watts RMS x 4 at 2 ohms)
150 watts RMS x 2 in bridged mode (4-ohm stable in bridged mode)

Feb 19, 2012 | Alpine MRP-M650 Car Audio Amplifier

1 Answer

I have 2 JL Audio 8W0's rated at 75 RMS. I had a MTX 280 Amp pushing them but need to replace it, what brand and size amp do you recommend for these speakers.


  • This Kicker Amp will compliment them JL Audios like nothing else. KICKER ZX Series ZX350.4 4 channels all rated @ 75 watts RMS. If it was me that would be my choice for a replacement amp.

http://www.amazon.com/KICKER-ZX-ZX350-4-Amplifier-4-channel/dp/B000ENSSPM
Regards, Tony

Apr 29, 2011 | Car Audio & Video

1 Answer

I need a wiring diagram for the jensen lxa400. Pushing 2 kenwood 6x9 (200 watt rms each) and 2 dual voice coil 12's (300 watt rms each) in a truck box. Everything is 4 ohm. Thanks, Curtis


you shouldn't need a diagram all you need is these items here.

purchase a 4gauge wiring kit

run a a power line from battery to amp with a in line fuse 6in from battery.

run a ground from car frame to amp. ( scratch paint and screw it down with an eyelet for good contact)

run a remote from radio to amp.(blue wire)

run rca's from the radio to the amp ( sub input on back of radio)

finally connect your speakers.

Mar 26, 2010 | Jensen LXA400 Car Audio Amplifier

1 Answer

What amplifier should I get?!


planet audio vrx-600.5 it runs 100watts rms to all four corners and will give you 300 wats rms to a 2 ohm sub all day long.

Jan 27, 2010 | Car Audio & Video

2 Answers

Lanzar optidrive series 4000watts mono block digital compitition class amplifier


Firstly, sorry to to tell you, but their is no such thing as a 4000 watt car amp. Google Ohm's law and RMS .

Check the owners manual or website to find the amps minimum impedance. Usually 4 or 2 Ohms. Next,
check the woofers impedance , If unsure check with a Ohmmeter,
It's actually the resistance,but close enough.

If they are 8 Ohm and you twist those wires together (parallel circuit) your amp will see 4 Ohms.
If they are 4 Ohms (paralleled) your amp will see 2 Ohms.
Do not connect in a series circuit (+ amp terminal to a + speaker terminal and that speaker - terminal to the other speakers + terminal and that speakers - terminal to the - amp terminal) .
It creates phase problems, and sounds like ****.

Most mono amps are really internally bridged stereo amps ,it's cheaper that way, but it limits how low of a impedance they will handle. Read the specs. Use the correct size connectors, scrape off paint for a good ground connection.Use the right gauge wire and above all. Fuse that power lead at the Battery!!!!!!!!
ps . if you have dual voice coils thats another chapter.
Good luck, Sumthin

Jun 11, 2008 | Lanzar Car Audio & Video

1 Answer

2006 12" Kicker L7 4 ohm


first whats the range in terms of WATTS that your 12" sub can handle in 4 OHMS ? second , lets check the AMP , POWER ACOUSTIK 1800 WATTS , Now thats a lot of power to drive a single 12" sub speaker . your amp is 1800 watts , per channel is around 500 watts , if BRIDGE thats around 1600 watts rms for ONE channel , if your sub can handle that kind of wattage fine , but it will not blow the amp , what it does is shuts down , some kind of protection mode , it will come back on after a minute or so. I suggest to use one channel in stereo mode , or purchase another sub to use the other channel. i hope this helps AJ

May 06, 2008 | Kicker 06ZX750.1 Car Audio Amplifier

1 Answer

Watts


The advertised wattage for your amp is:
300 watts RMS X 2 @ 4 ohms
600 watts RMS X 2 @ 2 ohms
The actual wattage you will be using will depend on what type/impedence speakers you are using, and how they are wired. Here's a link to some more of the specs of your amp:
http://www.bazooka.com/productAutoAmplifiersRS.asp?id=199
I hope this helps.

Nov 30, 2007 | Bazooka RSA75.2HC Car Audio Amplifier

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