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Old 01-05-2008, 02:39 AM
swatguy's Avatar
swatguy swatguy is offline
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Join Date: Mar 2007
Boat: Nautique
Location: Midwest, Chicago
Posts: 3,077
Some tower speaker and amp questions

Well wasn't sure where to exactly post this whether it's electrical or not, so if it is I apologize.
Well I was able to acquire 2 Kicker KB6000 speakers which I am going to run on the tower. I know they aren't pro audio by any means but I can honestly say I wouldn't use them enough to justify pro audio and heck they were free. They are rated like this.
150W Peak power.
75W RMS Power.
4 Ohms impedance.
Frequency response 55-21,000.
Dimensions 28x21x21

I am not sure if the 2 are going to be able to do the job as I have yet to only hear a boat with just 2.....though I have been behind boats with 4 and it was no problem hearing the music. If anyone has ran these or knows someone who has only used 2 I would love to hear your thoughts on if I "WILL BE" going with 4.
I need to pick up an amp. I am going to go Kicker as that is what I am already running in my boat (1)for my sub and (1) for my 4 Polks (call me OCD but all the same kinda looks cool ). I have had great experiences and have heard nothing but great things about these amps for the $$. I just don't want to get stuck if I end up deciding on running 4 speakers and have to buy another amp. I would rather pay a few more bucks up front and be prepared for what may happen than have to shell out more in the end. So me being not to stereo inclined with all the ohms and wiring in series/parallel would think if I got a 2 channel amp with enough rated RMS if I wanted to add 2 more speakers I could just wire 2 off the front and 2 off the rear. I figure I could turn the gain down if I end up staying with just 2. Think that will damage the speakers or hurt the sound? Here's the 2 ch amps I am eying Kicker ZX350.2 or ZX450.2

The 350
110 Watts RMS x 2 at 4 ohms
175 Watts x 2 RMS 2 ohms
350 Watts x 1 RMS @ 4 ohms

The 450
RMS Power
205 watts x 2 at 4 ohms
275 watts x 2 at 2 ohms
550 watts x 1 in bridged mode

So I am thinking that the 350 would work for 2 no problem, but would it do the trick if I wanted to go with 4 speakers up there? Or would I be better off going with the 450? I am sure the 450 will do the trick for 4 speakers j, but would it be too much for 2 and cause damage? Kicker as well as Monster Tower who run these speakers recommend an amp that runs 100watt RMS to each. Any pros going with a 4 channel amp or should I just stick to the 2 channel? Again I am not too stereo inclined so if anyone has any other suggestions on a way to go let me know, or if I am totally wrong on this please let me know. This is just what I came up with. Reason I want to add another amp is so I can turn the tower speakers on off separate from the cockpit and the sub.

Thanks in advance and Happy New Year to all

2000 Mastercraft Xstar
2004,2005 Ski Centurion Avalanche C4
2003, Ski Centurion Cyclone
99,2000,2001, 2002 Ski Centurion Elite V/Hurricane/lightning
88 2001 Nautique
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Old 01-05-2008, 02:16 PM
rwoznock's Avatar
rwoznock rwoznock is offline
TT Regular
Join Date: Jul 2007
Boat: 1996 Mastercraft Maristar VRS 225
Location: Northeast
Posts: 69
Hey there,

I have 2 polk MOMO's on my tower driven by a Rockford Fosgate 160 II amp and they play loud. My nephew wakeboards behind my boat all the time and brings his cd's to listen to. He says they are loud and sound great! There is a few things you should look into before you buy though. When you go to buy an amp you have to be careful whith the amount of speakers you hook to it. I would say you could use the 350 with 2 speakers cause it puts out close to the same power output I have. But if you go with 4 speakers you probably want to wire them in parallel to get more from your amp. That that will drop you to 2 ohms if you use 4 ohm speakers (which most are). That will make your amp run much harder than it would with a 4 ohm load. (or just 2 speakers) I know amps are all designed and state the will run down to 2 ohms, this will certainly make the amp run hot and will eventually shorten its life depending on how much you use it. IMHO if you think you might want 4 speakers someday, buy a 4 channel amp now and and bridge the channels until you can afford the other speakers. Then when you get the other speakers you can hook them all up and still only have the 4 ohm load which is good. Remember also don't worry about buying the amp too big, it's not power that kills speakers , it's distortion from having an underpowered amp. Hope this helps!
1996 Mastercraft Maristar 225 VRS
2006 Kawasaki STX-15F
2006 Mustang GT

Last edited by rwoznock; 01-05-2008 at 02:30 PM.
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Old 01-05-2008, 05:06 PM
TT Enthusiast
Join Date: Jan 2006
Boat: 2000 mastercraft x-star 330hp
Location: The Bat Cave
Posts: 178
iv had only 2 speakerss on my tower and i could here them but im putting 4 on this year to make it louder so if i were u i would go for 4 rite of way oh an also when you r picking out ur amp always go off of the rms of the amp and speakers can handle never go off the watts
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