Question about Kenwood KDC-MP235 CD Player

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Subwoofer amp problems

I have two kenwood 700 watt subs, i am getting a 1000 watt amplifier, which is 350 rms, for 2 chanell 4 ohms you know, but wht size speaker wire shoul i run from my subs to the amplifier? and any hints you want to give me. thanks

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  • zach_cant Apr 21, 2008

    should i use the same gauge wire to the sub from the amp as i do from the head unit to the amp

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I would suggest 16-18 gauge wire it will handle the 500 watt max u will b running

Posted on Apr 18, 2008

  • shadowc2d Apr 24, 2008

    in my experiance the best way to run from the head to the amp would be rca (or what some call a line level or low level) then run the speaker wire from your amp to the sub(s)

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I have Kenwood SW 900 . need to know its out put. Kept for long period


Do you mean the Kenwood SW-200 subwoofer or the SW-200 power meter? The subwoofer can use 50W RMS at 4 Ohms. It's rated at 60W. The power meter reads in two ranges: 20W and 200W.

Kenwood has the manual for the subwoofer on their support site. The direct link to the manual is http://kenwoodusa.com/UserFiles/File/UnitedStates/Home/Manuals/sw200.pdf .

I hope this helps. If you are looking at a different Kenwood product, please clarify which product you have. I can't find a SW 200 receiver from Kenwood.

Cindy Wells

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I have a Sony CDX-M30 Marine Stereo that when the volume is turned up over 20, it cuts off, then comes back on and if you don't turn it down, it cuts off again. Recently, it only has to be around...


One possible cause is a mismatched speaker system. Most stereo equipment specifies 8 ohm speakers to match the 8 ohm amplifier output resistance. A well known electronic formula states maximum power transfer occurs when the resistance in and the resistance out are equal. When there is a mismatch, more power is required to obtain the same sound pressure levels. By turning the volume up higher to do this, the electrical requirements to drive the speakers at that level may be exceeding that which the amp can provide. When this happens, the amp shuts down due to overload. Continued operation in this condition can cause permanent failure.

Another possible cause is the power requirements of the speakers to be driven properly. Larger speakers require more power to move the speaker coil and and cone. Connecting a speaker that requires 10 watts to be driven to an amplifier that provides up to 8 or even 10 watts will require that the amp be operating at 100% of capacity. An amplifier run like this will have a short life.

Connect speakers that match the amplifier's impedance requirements (8 ohm types are pretty standard / common) and will operate with the amount of power (in watts) that the amp can supply. Make sure you're comparing watt ratings in similar units. "P-P" (Peak to Peak), "Peak" (or Max") and "RMS" are typical terms. RMS is the is the most common standard used, but as you'll see below, some manufacturers like to use different units to make their products seem to have more power than they actually do. You can convert easily between the terms like this:

200W P-P equals 100W peak, and also equals 71W RMS

"Peak" is 1/2 the value of "Peak to Peak" (P-P) and "RMS" which stands for Root Mean Squared, is 70.7% of Peak. 200W P-P sure sounds like it's more than 70W RMS - doesn't it? It's all pretty simple once you know. Lastly, the fictional unit "Music Power" can be anything really, but is often either Peak or P-P values. It's just more smoke and mirrors by some manufacturers.

I hope this helps and good luck. Please rate my reply. Thanks!

May 12, 2011 | Sony CDX-C5005 CD Player

1 Answer

Shuts off when the volume gets turned up didnt do this wen new


A mono amp usually can handle only two 4 ohm subs. You see when you hook up two subs in parallel it drops the ohms too 2 ohms and 3 in parellal drops it to 1 ohms overheating the amp and cause power failure. Unless you bought a Mono amp thats 1ohm stable. But still I've seen cheap 1 ohm stable amps not last long. Also possible your subs are fried too check them with a multimeter and measure each sub ohms.

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1 Answer

I have a sony xm-2002gtw and i want to know if i can hook two 2-ohm dual subwoofers up to this amp and how i have 2 solo baric 12-inch.


200W x 2 @ 4 Ohm
500W x 1 @ 4 Ohm

This amplifier cannot handle a load lower than 4 Ohms in stereo or bridged mode.

If the subs are Dual 2 ohm - You cannot wire a 4 ohm load with (2) subwoofers.

Only 8, 2, or 1/2 ohm loads are possible with (2) dual 2ohm voicecoils

Thanks!



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I need help installing a 4 Channel Power Acoustik Amplifier to Two Pioneer Subwoofers. I hooked up the power wire to the positive battery terminal in the engine compartment. I then cut the power wire and...


You are doing right on what you described. I really like to work with a clearly described what involved in an issue.

Now we have to use a Voltmeter to check if there is power to the amplifier. If there is power to the amplifier terminal, then the problem is at the amplifier, not the connection. Let check it out:

1- Turn on your Kenwood radio, make sure to hear sound from your regular speakers.
2- Turn remote control knob to the mid level between min and max.
3- Measure the blue wire where you spliced to ground to see if you have 12V, if it is not then the problem is right there.
4- Measure the Red wire power from the Amplifier to ground ( the bolt that you connect the negative power to see if there is 12V, if not trace back to the Fuse that you inserted between the positive terminal of the battery and the wire going through the firewall to correct it.
5- If you have 12V at step 3 and 4, then you have a defect unit, return it to the manufacturer for a replacement.

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2 Answers

I have a Kicker 2500.1 monoblock amp. I am going to run 4 15 inch Kicker L5 subs to this one amp. What ohm subs do I need to purchase? Dual 2 ohm, or dual 4 ohm? Also, how would I wire these subs to pull a...


make sure that you get dual 2 ohm subs. to get a 1 ohm load, wire each sub in a series. that means the positive from one coil, connected to the negative of the opposite coil. then the other two leads will be your active speaker wires. that will give you a 4 ohm load for each sub. once all 4 are wired like this, you simply take all of the positive wires that you have left, and combine them at the amp. do the same with all of the negative wires. that will give you 1 ohm. just be extra careful to make sure every sub is wired exactly the same, otherwise your sound quality will be greatly reduced.
also, 2500 watts isnt as much power as these subs will take if wired together. it will still sound awesome, but I reccommend turning the level on your amp up just until you hear a bit of distortion, then back it off a hair. being slightly underpowered will cause you to have some distortion in your bass. playing distorted notes builds up alot of heat in the voice coils, and these subs are VERY sensitive to overheating.

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Is my amplifier giving my subs the full power they need?


no sony has like 400 rms on that amp. eventualy u will blow the subbs. buy the hifonics 1608d amp to power thees subbs connect them all positives together at amp terminal and all negative together at negitive on amp terminal. this will make it a 1 ohm load with around 1400 true rms so around 500rms each sub.this amp on ebay runns like 250 and is worth every penny

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Can't fit subwoofer amp leads to pioneer DEH-2000MP Head unit


pioneer head units only distribute like 200 rms or so to the speakers. you might have to find a blue maybe even blue with white striped wire and nick it just enough to tie your amp wire around it. tape it up and see if it works.

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1 Answer

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1. your charging system is your only limitation for watts but you can add plenty without upgrading it. i'd say 1,000 watts max on the stock batter and alternator with large power and ground cables of at least 4 gauge.

2. yes. using your subwoofer rca outputs.

3. for a subwoofer you should always ad an amp. i'd say a 3-400 watt amp is fine to match up with you kenwood speakers. you will need a small sub to fit in there or maybe one slim enclosure behind each seat with slim 8" subs

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1 Answer

Speaker wiring


No degradation. The smaller the ohm, the better the signal ( least resistance ). You and your system should be fine.

Oct 23, 2007 | Tomtom GO 700 GPS NAVIGATION BRAND ONLY...

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