View Full Version : 3 Amps???

06-06-2011, 06:04 PM
I'm considering putting in a third amp. The PO had a decent system installed but the tower speakers, bow speakers, and dash speakers are all on a single amp. It just doesn't sound as clear as I would like. Anyone running 3 amps on their boat?

06-06-2011, 08:58 PM
I'm running three. An Alpine PDX 4x150 (?) for the hull, the same for the four tower speakers, and a PDX 1000U for three 10" subs.

06-06-2011, 08:58 PM
I have the tower sub switched at the dash.

Cobra Rob
06-06-2011, 09:03 PM
Have 3

600x4 for the tower
600x4 for in boat
1500x1 for the subs

06-06-2011, 09:07 PM
Anyone have any pics of their setup?

06-06-2011, 09:14 PM
I will post some pics later- I have 3 wet sounds amps, 1 syn6 , 1 syn1 and 1 syn4.

I will say this: upgrade the alternator if it has not already been done. Put in two batteries with a switch, one of the batteries deep cycle for when you are hanging and anchored up somewhere.

Cobra Rob
06-06-2011, 09:15 PM
Didn't upgrade alternator but I did put in 2 Kinetik 1800s. Even then it will drain the house batt pretty quick.

06-06-2011, 10:23 PM
Got 3. Stock 2006 x-30 salt alternator

Brian B
06-07-2011, 12:24 AM

DJ 50
06-07-2011, 12:43 AM
Do a search for "Sodar's Prostar 197 Stereo Install" or something close to that nature. He has a great set up and goes into great detail about it.

06-07-2011, 12:54 AM
JL MHD 750/1 - 2x 12" Kicker ported subs
JL MHD 750/1 - 2x 10" JL M10W5 sealed marine subs
2x JL M6450 - 6x OEM cabin speakers
Arc Audio - KC 300.2 - 4x Bullet hollow point HLCD tower speakers
3x kinetic HC2000 batteries
upgraded alt - 120amp at idle

I have run this stereo wide open with the engine running for over 8hrs without issues (fingers crossed).

06-07-2011, 08:44 AM
Have 3

600x4 for the tower
600x4 for in boat
1500x1 for the subs

I have 3 as well but I ALSO have 3 batteries!

Cobra Rob's setup is very similar to mine except for the tower speakers. I only have 2 :(

06-07-2011, 10:01 AM
To avoid some dominoing issues into your charging system consider going with fullrange Class D amplifiers. You'll be operating at 60 percent greater efficiency. Depending on the size of your particular alternator this alone might keep you from the upgrade. Also, you can do an expansive battery bank but a large depleted battery bank can be a serious liability to your charging system when you are trying to get a little alternator service recharge.
Fullrange Class D amplifiers are available in a variety of sizes from a 600 watt 5-channel up to 1200 dedicated watts to the tower and 1200 dedicated watts to the subwoofer. So you are definitely not limited with your choices.

Earmark Marine

06-08-2011, 02:25 AM
Got 3.
The more you're taxing the electrical system on the boat, the more that proper wiring, connections, current draw, alt capacity, reserve capacity matter.
Here's a good reference for anything stereo.