Question about Car Amplifiers

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Amps how connect two amps power and rca do i connect one amp from battery or bofe of them i have a 2in to 4 rca how do i get rca cable to the other

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Re: amps

You can run one power wire from the battery into a power block. Power block can feed up to 5 other devices.

Posted on Dec 22, 2008

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How do i install amp

Hi. First find a place to mount your amp. You must run a cable for the of the battery directly to your amp and place a fuse in line, by the battry. The ground cable must be as short as possible. Then run your rca cables from your radio to the amp and a single cable to use as the remote cable. Now connect your speakers. Make sure go's to from amp to speakers. Depending on your radio, but most of them have a blue wire in the radio harnes, it is the remote wire. Now connect to the remote wire you ran and to the amp. Plug in your rca cables and you are ready to play. Any problems you can email me on

Nov 12, 2011 | Car Amplifiers

1 Answer

How can i set up the amp alpine model mrd-m1000

The basic steps to set up a car amplifier are these: 1. Disconnect the car battery's negative terminal before doing ANY electrical work on your vehicle. Failing to do so can damage your equipment or cause injury to your person. 2. Determine where you are going to mount your amplifier. This can be in the trunk, on the back of a seat, under a seat, etc. Pick a place with good airflow, otherwise your amp may overheat while playing. 3. Run the ground wire from the mount location to a ground location. The ground location should be a location where you can securely connect the cable to the vehicle chassis, and the connection should be metal-to-metal, without any paint in between. 4. Run the speaker cables to the amp. This means any cables coming directly from subwoofers as well as RCA cables coming from the head unit. Don't forget the remote wire from the head unit. 5. Run the positive (live) power wire directly from the vehicle battery to the amp. You will most likely have to drill through the vehicle firewall in order to get the cable through. 6. Connect the ground wire to the ground location. 7. Connect the speaker wires and remote wire to the amp. Make sure these cables are connected on each end to the proper inputs. 8. Connect the ground wire to the amp. 9. Insert the fuse into the in-line fuse on the live power cable, within 2 feet (24 inches) of the positive terminal connection.If your cable didn't come with an in-line fuse, you will have to buy a fuse separately, strip the power cable, cut it, and insert the fuse in the specified location. 10. Connect the power wire to the amp first, and then to the battery. 11. Power up your system, and play some music!

Mar 06, 2011 | Alpine MRD-M1000 Car Audio Amplifier

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Will this amp push 2 2000 watt subs?

hope this helps.


About Power supply wires (MRP-M1000 only)

• 21mm2 is the minimum power and ground cable size

that should be used to connect this amplifier. The

length of these cables should not exceed 1m to assure

safe operation.

• If the length of the power and ground cables exceed

1m, or if you connect more than one amplifier, a distribution

block should be used with 33mm2 or 53mm2

power and ground cables depending on the length

necessary. Ensure that you install a correctly-rated

in-line fuse on the power cable near the battery positive


RMS Continuous Power (at 14.4 V, 20 - 200Hz)

• Per channel into 4 ohms (?1% THD+N)

MRP-M1000 ......................................... 600 W x 1

MRP-M500 ........................................... 300 W x 1

• Per channel into 2 ohms (?1% THD+N)

MRP-M1000 ....................................... 1000 W x 1

MRP-M500 ........................................... 500 W x 1

Total MAX Power

MRP-M1000 ............................................. 1900 W

MRP-M500 ............................................... 1100 W

S/N Ratio

• IHF A Weighted, Reference: rated power into

4 ohms .................................................... 100 dBA

Input Impedance

• RCA IN .................................................. 20k ohms

• SP IN .................................................... 40k ohms

Frequency Response (200Hz/ -3dB) ....... 20 - 200 Hz

Crossover Frequency .......... 50 - 200 Hz (-24dB/oct.)

Input Sensitivity (RCA IN) ............................ 0.2 - 4 V


• Width (Heat Sink/Footprint)


......... 320 mm (12 - 19/32")/380 mm (14 - 61/64")


............... 210 mm (8 - 17/64")/270 mm (10 - 5/8")

• Height ..................................... 60 mm (2 - 23/64")

• Depth .................................... 242 mm (9 - 17/32")


MRP-M1000 ................................................ 4.2 kg
MRP-M500 .................................................. 2.7 k

Feb 04, 2011 | Alpine MRD-M1000 Car Audio Amplifier

1 Answer

Cannot get pyle driver 413 bridgable mosfet1000 watt amp to work with 800 watt subwoofer . followed instructions all the lights are lit but no sound need help

just wondering how you connected the amp . you should do the following steps
1 battery cable with right size fuse at battery
2 remote wire from radio
3 rca cable from audio out from radio
4 ground the amp to a good clean piece of metal

then make connection on the amp
1 battery or power cable to the 12volt connector on the amp
2 remote wire to b+ or rem on the amp
3 rca cabel should be pluged in the channels are using cause you tell me that the amp is 4 channel
from the model numbers
4 clean and scrape off paint on the metal surface you are going to install the ground cable from the amp . make sure your ground is no more than 12 inch max. and is the same gauge as the power cable
5 . run your speaker wires to the amp and make sure your ohm load for the subwoofer is 2 ohms or 4 ohms to make the amp work proper .

if need help on anything email me @

Oct 29, 2010 | Pyle Car Amplifiers

1 Answer

Trouble connecting marine amp to stereo

Hello lizskates814,

You can use either the high level (speaker) or the low-level (RCA's) inputs to the amp, but not both. Choose whichever one sounds the best or is more convenient to install and leave the other disconnected.

Hope this helps.

May 23, 2009 | Pyle PLMRA400 Car Amp

1 Answer

Legend Amp hook up manual.

Pretty Straight Forward get a 8 or 4 gauge amp wiring kit.

Run your hot wire to the +12V from the battery make sure to install the supplied inline fuse near the battery don't connect to the battery until installation is complete.

Run the REM to your stereo power ant. Wire. if available.

Run the GND to Metal Chassis Ground keep it as short as possible.

Run the RCA Cable from the back of the Stereo to the RCA Inputs or Low Level on the amp.

This amp is 2 Ohm Stereo Stable which means you can connect 2 (4 ohm) speakers in parallel to each channel or 1 (4 ohm) speaker on each channel or you can connect 1 (4 ohm) Speaker in bridged mode.

There are other speaker configurations you could use but you cannot drop the load below 2 Ohm in stereo mode and no lower than 4 ohm in bridged mode.

Hope this helps

Mar 25, 2009 | Legend LA1490 - American Legacy Series 2 -...

1 Answer

Maystar cx475

Ok, I am assuming this is the 600 watt amplifier?


Supplies needed:
- 8 Gauge power wire (long enough to run from your battery to the amp placement) WITH an inline fuse!!
- Depending on your stereo (if it has amp pre-outs or not) you will either need RCA cables (long enough to reach your amp from your stereo) OR a Line-Out converter AND RCA cables.
- The power lead that connects to your "REMOTE" line on your stereo (long enough to reach from amp to stereo - usually blue)
- A good ground wire ( long enough to reach a metal part of your car from the amp)

STEP 1: Find a spot to run the power wire from your battery - through your firewall and into your car - and then to your amp. (DO NOT CONNECT IT TO ANYTHING YET)
STEP 2: Remove your car stereo and look to see if you have PRE-AMP outs (RCA connectors for an amp on the rear of the unit)
A- if you do, GREAT.. proceed to step 3
B- if you don't.. you will need to get a LINE-OUT CONVERTER - what this does is converts the higher signals from your standard wires on your radio, to RCA style wires to connect to your amp.
B2- you will also want to buy a wiring harness kit for your stereo, unless you want to hack away at your factory wires.. (not recommended) - connect the harness kit to your factory wire harness, wire in your leads for the output converter, and run the other end to your stereo.*
*you will need to know which wires run to the speakers you plan to power with the amplifier
B3 - once the converter is properly connected - proceed to step 3
STEP 3: Plug the RCA cables into the stereo or converter, and run them properly from behind your radio to the amp but DO NOT CONNECT THEM YET.
STEP 4: Connect the REMOTE wire from your stereo to the same wire for your amp . (this enables the amp to turn on/off with your radio.. otherwise.. you will have alot of dead batteries)
STEP 5: re-install your stereo into the car.
STEP 6: Connect the RCA speakers into the INPUTS on your amp
STEP 7: Connect the REMOTE wire to your amp.
STEP 8: Connect the speaker wire from the OUTPUTS on your amp to the speakers you wish to power
STEP 9: Connect the POWER CABLE to the amp PROPERLY
STEP 10: Connect the GROUND CABLE to a metal part of your car (sheet metal, not just a bolt)
STEP 11: Connect the POWER CABLE to the battery cable
STEP 12: Re-connect your Battery
STEP 13: Start your car, and test your radio.

If you have any issues from here.. you need to re-check all of your connections.

Oct 12, 2008 | Car Amplifiers

1 Answer

RCA cable use

You can plug into the left channel and it will feed both the left and right channels.

To confirm that it's feeding both channels, connect the speaker to one channel at a time. With signal fed into the left channel only, you should get sound when you connect the speaker to either channel.

Apr 18, 2008 | Sony XM-754HX Car Audio Amplifier

1 Answer

How to connect two amps do i connect one amp from battery and then take power from the other or must i connect bofe of them from the battery and how do i get rca cable to the other amp my stereo only has...

Run a single wire to battery fit it to a distribution or connector block they normally come 1 into 4 or 1 into 2 ,and yes you can get splitters for your rca cables should be able to pick them up at your local car audio dealer.

Dec 27, 2007 | Car Amplifiers

1 Answer

How to connect 2 Amps for my car audio system


Based on your post, you actually have 2 concerns:
1. Power - Normally this is the +12V straight from the battery + terminal. If the existing power wire from the battery to your old amplifier is capable of carrying the combined current (in Amps) of the current + the new, then it is simply running an extension of the B+ line (usually big red wire) from the old amp to the new amp. The negative/ground is simply connecting to the chassis/exposed metal part of the vehicle.
On the other hand, if the old amplifier uses a rather not so big wire to supply it from the battery, you are better running another bigger wire from the same battery terminal to the new amplifier.
You have to check how much current the amp will draw from the battery and select a wire that is capable of carrying that much current without heating up. Offhand a #8 AWG would suffice for most single amp.

2. "Where does the Line cables go?" If you are referring to the Line INputs of your new amp, they maybe connected to the RCA OUTput (line level) of the old amp (it it's got one). Alternately, if the old amp has only INputs and your new amp has both INputs and OUTputs, remove the RCA connection to the old amp and plug them in to the new amp. Thereafter connect another pair of RCA male cables from the output of the new amp to the inputs of the old amp.
If neither of the new or the old amps has an OUTput RCA female, you may need to use a splitter of some sort. Below is an image of a two female RCA to a single RCA male.
You can hook it up in many ways. The simplest would be to remove your existing RCA connection to the old amp, plug in the double female/1male to the INput of your old amp. Connect the cable from the head unit to one of the female RCA. Connect another pair to the other female and the other end to the input of the new amp.

Hope that this be of some help/idea. Pls post back how things turned out or should you need additional information.

Good luck and kind regards.

Nov 22, 2007 | Car Amplifiers

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