Printer Friendly Forum Posts - what is the best way to wire up my system

Hi, i have never done a car audio installation before so i would just like to confirm all the parts etc I have chosen will work together.

Basically i want 2 subwoofers in the back powered by a amp
and 4 speakers for the front and back powered by another amp.

I have chosen the following

Subwoofer- Pioneer TS-W307D2 ( x2 of them )
• Maximum input power 1.200 Watt
• Nominal input power 400 Watt
• Frequency response 18 - 500 Hz
• can be run at 4 2 and 1 ohm configurations and it is a DVC

Amp for Subwoofer- Kenwood KAC-8104D x1
*Rated power (4 ohm, 20 ~ 200 Hz, 0.5% THD) @ 14,4V : 300W RMS
*Rated power (2 ohm, 100Hz, 0,8% THD) @ 14,4V : 500W RMS
*Maximum output power @ 14,4V : 1000W
*Aluminium Die-cast heat-sink with Aluminium dress-plate
*Power MOSFET Switching Power Supply
*2 ohm load capability

speakers - Kenwood KFC-S6972 (x2)
*Peak Input Power 450W
*Maximum Input Power 160W
*Rated Input Power 80W

Amp for speakers - Kenwood KAC-6404 x1

*14.4V Rated Output Power (4 Ohm, 20 ~ 20 kHz), 1% THD: 4 x 40 W
*14.4V Rated Output Power (2 Ohm, 1kHz), 0.8% THD: 4 x 60 W
*14.4V Bridged Output Power (4 Ohm, 1kHz), 0.8% THD: 2 x 120 W
*14.4V Maximum Output Power (4 Ohm, Bridged): 500 W (4 x 125W)

Could someone with experience see if this will work together?
and also if you have any suggestions please feel free to tell me ,
also the Kenwood KFC-S6972 will be supplied with 2 speakers right? so if i buy 2 sets of them i should have 4 yes?

and i notice the speakers are coaxial whilst the amplifier i want to use has different speaker input, what sort of converter will i need?

many thanks
Vish

*14.4V Maximum Output Power (4 Ohm, Bridged): 500 W (4 x 125W)

This is incorrect... if amp is bridged it will have 2 x wattage combined from 2 channels.

•     CEA Rated: 40W x 4 (1.0% THD+N) (4Ohm)
•     60 Watts x 4 (2 Ohm)
•     130 Watts x 2 (4 Ohm Bridged)

*14.4V Maximum Output Power (4 Ohm, Bridged): 500 W (4 x 125W)

The output power will be rated at 2ohms per channel max output not at 4 ohms. The rating is done for lowest ohms and maximum output that the amp can handle for a load.

The amp will work since you will be using it for full range speakers. You can even block low bass out of them and then they will sound cleaner. Block speakers from seeing anything lower then 140hz and with subs playing it will sound full and clear. Playing the 6x9's this way also will lengthen their life by not trying to recreate a frequency that it will have a hard time with, especially if you will listen to hip-hop, dance, techno, house or bass music.

and i notice the speakers are coaxial whilst the amplifier i want to use has different speaker input, what sort of converter will i need?

I don't understand your question...
The speakers will wire to the amp output and the input is RCA which will be on the back of any after market head unit, if you are using a stock or factory radio then you will require to hook up line out converters which will work but you will lose SQ. I would just buy a good head unit with pre-outs dedicated for front, rear, and subwoofer so you have better control over the overall sound.

The sub configuration I would run at 2 ohm with a series parallel set up and it should sound good as long as you get the correct box size internal volume to match with it's parameters. Normally a 12" sub needs 1.25 - 1.5 cu ft. There should be instructions with sub to tell you the volume needed to sound properly. If the box is incorrect like too small it will not have the bass range and sound tinny, if the box is too big it will be too boomy. It will also affect the mechanical workings and the cooling of the voice coil.

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Do it right the first time... or I might have to fix it for ya