Max wattage, and ohms of amp**Choosing sub**?

Question

My question is that i wanna get a 1500 watt 12Inch kenwood sub, but its Dual 4 ohm voice coils.. now if i hooked it up, id be bridging the amp, and running the coils in parallel so it would drop it to 2 ohms(sub), my amp specs are below dont make it clear that it would be fine, and that id get the full 1200 watts, so

would i get the full 1200 watts @ 2ohms, or would i blow the amp running it like that, and should i just go with the lower sub..

Crunch PZi 325.2

1200W 1 / 2-Channel A/B Class Amplifier

The specs are:

Technical Specification

* RMS Power Range : 300-600 Watts

* Number Of Channels: 2

* Maximum Power: 1200 Watts

* Built In Crossovers: Yes

* Channel Separation: Yes

Features

* RMS @ 4-Ohms: 300W x 2-Ch

* RMS @ 2-Ohms: 600W x 2-Ch

* RMS @ 4-Ohms: 1200W x 1-Ch

there is also a 1200 watt kenwood sub, and its 4 ohm single, but im afraid ill blow the sub with the amp turned up almost all the way like i like..

and 2 subs isnt an option, small trunk, and my daughters stroller takes most of the room.

Answer 1

all you care about is the RMS wattage (continuous) not the peak/max wattage

here is a link that will help you pick the correct sub setup http://www.the12volt.com/caraudio/woofer...

i would not hook any halfway decent sub up to that amp because its not CEA-complioant (you would be lucky to get half of the advertised RMS wattage from it and it would more than likely be distorted, which is the main cause of speaker damage over time)

If you send too much power to your sub, you risk damaging it. The cone of the speaker and the mechanical parts that make it move may break under the stress. Surprisingly, too little power can also damage your subwoofer — in fact, it's actually more common than damage caused by overpowering.

When the volume is turned up and the amp doesn't have enough power, the signal becomes distorted, or "clipped." This distorted signal can cause parts of the speaker to overheat, warp and melt. Not good!

You don't have to match speaker and amp wattages exactly. An amp with a higher output than the speaker's rating won't necessarily damage the speaker — just turn the amp down a bit if you hear distortion from the sub and don't run the speaker at extremely loud volumes for lengthy periods. Likewise, you'll be OK with a lower powered amp if you keep the volume down and don't feed a distorted signal to the sub

you will send the amp into clipping

Clipping

Clipping occurs when an amplifier is asked to deliver more current to a speaker than the amp is capable of doing. When an amplifier clips, it literally cuts off the tops and bottoms of the musical waveforms that it's trying to reproduce, thus the term. This introduces a huge amount of distortion into the output signal. Clipping can be heard as a crunching sound on musical peaks.

that causes distorted sound which will damage your subs

Answer 2

From Inktownlegend, "Surprisingly, too little power can also damage your subwoofer — in fact, it's actually more common than damage caused by overpowering.

When the volume is turned up and the amp doesn't have enough power, the signal becomes distorted, or "clipped." This distorted signal can cause parts of the speaker to overheat, warp and melt."

BULLCRAP!!!!!!

The truth is here - http://www.rockfordfosgate.com/scripts/r...

...and here - http://www.bcae1.com/2ltlpwr.htm

Answer 3

i wouldn't even try to get 1200 watts out of the kenwood sub. the most is 300 the rated rms is 380.

so you technically cant run the sub with out it blowing it unless you have 2 of them.

i would get the kicker cvr if i was you. or the excelon kenwood subwoofer thats the only way you can properly run it with that amp.