#20 in Car multichannel amplifiers
Use arrows to jump to the previous/next product
Reddit mentions of Precision Power P900.4 900-Watt Phantom Series Class D Full Range 4-Channel Amplifier
Sentiment score: 3
Reddit mentions: 4
We found 4 Reddit mentions of Precision Power P900.4 900-Watt Phantom Series Class D Full Range 4-Channel Amplifier. Here are the top ones.
or
RMS Power Rating (14.4V): 4 ohms: 145 watts x 4 chan./2 ohms: 225 watts x 4 chan./Bridged, 4 ohms: 450 watts x 2 chan.RMS Power Rating (12V): 4 ohms: 100 watts x 4 chan./2 ohms: 150 watts x 4 chan./Bridged, 4 ohms: 300 watts x 2 chan.MOSFET power supplyLED power (green) and protect (red) indicatorsHeavy duty aluminum alloy heat sink for extreme heat dissipation
Specs:
| Height | 2 Inches |
| Length | 10.94 Inches |
| Weight | 6.5 Pounds |
| Width | 6.75 Inches |
Disclaimer, I'm into very high end car audio, so this might be overkill.
I would not recommend using the cutout in the rear deck if it is available, which it isn't. Definitely no cutout there. You would be much better off putting a little ten inch sealed box in the trunk. Shouldn't take up much space at all, and will sound much better. You get into some weird issues putting aftermarket subwoofers in stock rear deck locations anyways, most subwoofers can't be run in an "infinite baffle" set up like that.
Here is a very decent system for under $600
Front Speakers $140
Subwoofer $130
Subwoofer Box $35
Amplifier $170
LOC $100
Budget a minimum of $200 for install.
This will be a killer system. Super clean and plenty loud. The four channel amp's two rear channels can be bridged to power the subwoofer. Trust me, you don't need rear speakers.
You can also install the subwoofer and amps where the spare tire goes, just get AAA.
Front door speakers $150
Head unit $90 plus $40 (with bundle discount) for install parts
Amp $164. Channels 1 and 2 for doors, 3+4 bridged to the sub.
Sub $150
You'll need to either build or have built for you a custom box for the sub. Off the shelf boxes do not perform well. A ported box with net volume of 1.2 cubic feet and tuning frequency of 28hz will work well for this sub. I can help you come up with a more exact design if you're wanting to build it yourself, or you can give those numbers to anyone that can build a box and they can do it. If you do it yourself it should run you around $40 in supplies. Getting one done for you would be $100-150 for something basic like this.
OK, here's a couple of creative options:
Woofers to pick from:
Midranges to pick from:
Tweeters to pick from:
Amps I'd recommend for a 3 way setup (need both of them to support all 6 speakers):
Tons of power here. Nice crossover built in. Enough power to run a real subwoofer if you bridge the rear channels and run rear speakers off of the head unit.