Question about Alpine Type-R SWR-1242D Car Subwoofer

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How to wire 2 ohm 2 12ich alpine type r's to box terminals?

I have a mrp 1000 alpine amp, how do i wire these to get 2 ohm to the sub box. What size of speaker wire do i use.

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Dual 4 ohm subwoofers can only be wired @ 1 ohm, 4 ohm or 8 ohm.
2 ohm mono load is not possible.
You will need to use (1) subwoofer to get the 1000W out of the amp.
Wire both positives on one sub to + on amplifier and both - on the same sub to - on amplifier to give the amplifier a 2 Ohm load.
Add a second amplifier, or buy an amplifier that is 1 ohm mono stable.
You can wire both to the amplifier at 4 ohms 600W, but they will share the power and only see 300W ea.

Posted on Jan 12, 2009

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What amp would be better to use with what speakers/sub? I have a KAC-7202 kenwood 920W maximum power (150wX2 RMS, 4ohms) (230wX2 RMS 2ohms) and then the other amp I have is a Alpine MRP-M500 mono power...


I'm using that Alpine right now for 2-12" subs and I have compared it to 6 or 7 other amps this month and most were 4 channel 150Watt/Channel Bridged to 300Watts x 2 and found the Alpine to be superior in both sound quality and loudness. The Alpine has also not turned off even with full volume for hours at a time, Very solid amp I was very surprised due to it's size!

Apr 04, 2013 | Kenwood Car Audio & Video

1 Answer

What is the best amp for one 15" alpine type r?


sub spec 250watts per coil you should be just fine I have 2 typr 15s on orion hcca 2500 1 and it kicks a$$ thats 1000 watts over the rated limits of the subs only shut the amp down once these subs can take a lot more power than they say just use your common sence with the volume and gain levels

Jan 31, 2012 | Alpine Type-R SWR-1242D Car Subwoofer

1 Answer

I have the MRP-M1000 amp. I want to hook up 2 alpine subs to this amp. Which alpine subs would be the best for this amp? Please be specific with ohms and watts.


Your best bet will be to wire 2 subs in parallel to the amp. Each sub should be rated for at least 300 watts rms at 4 ohms. This will give you a total impedance of 2 ohms, and your amp will put out 600 watts rms at that impedance. That way, each sub will receive 300 wats rms. I would not recommend wiring subs in parallel, as you will need two 1 ohm subs at 300 watts rms, which are harder to find and will be more expensive. A parallel circuit is the most efficient way to do it.

Feb 23, 2011 | Alpine MRP-M1000 Car Audio Amplifier

1 Answer

I have the Alpine MRP-M1000 amp. I want to use 2 subs with this amp. Which Alpine subs would work best with this amp?


this amp is rated at 600w at 4 ohms and 1000w at 2 ohm so as long as you calculate your speakers to match the ohm specs of the amp you can hook up

parallel = pos to pos and neg to neg of the 2 speakres
2 - 8 ohm speakers in parallel = 4 omhs
2 - 4 ohm speakers in parallel = 2 ohms

series = pos to neg of the 2 speakers
2 - 1 ohm speakers in series = 2 ohms
2 - 2 ohm speakers in series = 4 ohms

Feb 22, 2011 | Alpine MRP-M1000 Car Audio Amplifier

1 Answer

Will this amp push 2 2000 watt subs?


hope this helps.

caution

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

post.


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

Dimensions

• Width (Heat Sink/Footprint)

MRP-M1000

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

MRP-M500

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

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

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

Weight

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

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

1 Answer

Have 2 4+4ohm avi sl500 subs how do i wire it to this amp and what setings on this amp alpine mdr m1005 1000watt amp


using these subs will limit you to a 4 oh load to the amp witch will only let the amp produce half of it's power. the lowest ohm load that amp can handle is 2 ohm and the next lowest you can wire the subs is 1 ohm and that will over heat the amp and destroy it. so to answer your question first wire each sub like this diagram shows...
Wiring Option #1
1_4ohmdvc_2ohm.gif
then once both subs are wired this way you wire both positives from each sub to the positive side of the amps speakers terminals and wire each subs neg. to the amps neg speakers terminal. the wire is series parrelle and will present a 4 ohm load witch will be the safest to run with your amp.

Jan 19, 2010 | Alpine MRD-M1005 1000 Watt Mono Amplifier...

2 Answers

How do i hook up the mrp-m1000 to 2 type r subs since it is a one channel amp? the subs r 4 ohms so it should work right?


hook the positive to positive and negative to negative on both subs then run wire to the amp the amp will see a 2ohm load

Jan 07, 2010 | Alpine MRP-M1000 Car Audio Amplifier

1 Answer

I dont know how to connect it .it is an mrp-m850 i tryed to connect it but it wont turn on


well u run a power wire atleast 4 guage from the positive terminal on the battery, then 4 guage to a chasis ground source, then a remote wire to the rear of your cd player that will kick the amp on when the cd player turns on... then for subwoofer wiring go to www.the12volt.com for sub wiring options... you need either single voice coil 4 ohm subs or 2 ohm dual voice coil subs to get the 2 ohm load to the amp so u can get the rated power out of it...

Dec 06, 2009 | Alpine MRP-M850 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

2 Answers

What is the best way to wire two alpine SWR 1222D subs to a alpine PDX 1000 1


First off excellent choice on audio equipment, i guarantee you won't be disappointed. So your subs are dual coil 2 ohms. So wire each individual sub in series. If you don't know what this means i'll explain. On each sub there are 2 sets of wire terminals. Connect a wire from the one set's - to the other set's +. Do this on both subs and you will have the coils wired in series making each sub 4ohms. Now to hook the subs together you'll need to wire them in parallel. Now since you have your coils in series, on each sub you have one + terminal and one - terminal left. So run a wire from the + terminal remaining on each sub, and run them to your amp. Splice the ends of the two wires together and plug them into the + speaker output of the amp. Connect the two negatives in the same way and plug them into the - port on the amp. You will now have your amp running at its desired 2ohms. When wiring this disconnect the fuse on your amp power wire to avoid short problems. And if you get confused at all, and aren't sure what to do, ask again don't guess, if its done wrong you could severely damage your equipment. Hope this helped, enjoy the bass...

Sep 16, 2009 | Alpine Car Audio & Video

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