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WakeWorld Discussion Board » >> Boats, Accessories & Tow Vehicles Archive » Archive through April 01, 2004 » Anyone have this Amp (Kicker KX700.5) « Previous Next »
By Tom Adrian (tommyadrian5) on Wednesday, March 03, 2004 - 5:27 am:    Edit Post Delete Post
untitled.bmp (75.1 k)

It's 40Wx4 + 200Wx1 at 4 ohms. I would really like to have one amp power my whole sub/tower setup, but i'm wondering if 40W per tower speaker will be enough (tower speakers will be 4 6 1/2 inch coaxials). They don't recommend bridging the multi-channel output and running at 2 ohms. Does anyone have this amp or have any experience with it.

here's some more detailed info on it

(Message edited by tommyadrian5 on March 03, 2004)

By Monster Tower (monstertower) on Wednesday, March 03, 2004 - 5:56 am:    Edit Post Delete Post
I have it and am running the Kicker 10" L5 Solobaric with the amp output (and the remote Bass power control is nice) and then three pairs of K60 marine speakers inside the boat with the 40Wx4. I added a second amp (800x4) for the tower speakers. It's overkill so if your going to use the 40Wx4 for just the tower speakers you may have enough. If your going to split that between the boat and the tower it seem a little light unless your using real efficent speakers.
By Tom Adrian (tommyadrian5) on Wednesday, March 03, 2004 - 6:05 am:    Edit Post Delete Post
No the 40Wx4 would be running the tower speakers only, so each tower speaker would be getting 40W. Is this enough.

Also, if I use Y splitters to split the signal from the RCA preout to the amps inputs, will it hurt the amps performance.

By cabalisticfire (cabalisticfire) on Wednesday, March 03, 2004 - 7:01 am:    Edit Post Delete Post
You're going to be a little close on power trying to run the K60s at 40W each. The K60s are rated for 65 Watts. Since tower speakers are usually played at high volume and pushing speakers at high volume with insufficient power is really bad I would tend to steer you towards a different solution. I would recommend a KX350.2 for the tower and a KX400.1 for the sub. Or, if you want to push your interior speakers with the amp too, run a KX650.4 to power both the tower and interior speakers. All recommendations are considering running at 2 ohms.
By Monster Tower (monstertower) on Wednesday, March 03, 2004 - 10:07 am:    Edit Post Delete Post
Good point, underpowering speakers I've been told is what blows them, not overpowering. The main reason I did a second amp just for the tower speakers is that several people who are far smarter than I in the Audio relm recommended it as the only way to go.
By Tom Adrian (tommyadrian5) on Wednesday, March 03, 2004 - 10:16 am:    Edit Post Delete Post
yea i'm starting to get that feeling

By Bob (bob) on Monday, March 08, 2004 - 6:20 pm:    Edit Post Delete Post
well, really three amps is the best way to go. One for the towers, one for the sub(s), and one for the boat speakers.
By Grant (whitechocolate) on Monday, March 08, 2004 - 8:01 pm:    Edit Post Delete Post
I was looking at the Kicker Amp's for a System for my brothers truck I never realy thought about running one. I looked at the Tec sheet. It said the the KX.800.2 run 01.5 THD distortion. if you wer goin to run it as a bass amp It might work ok but IMO that amp has to much THD distortion just to give you a Idea what amps run

Kicker 1.5 THD
Rockford Fosgate 0.9 THD
JL Audio 0.5 THD
Orion 0.3 THD
Zapco 0.2 THD
Mcintosh Less than 0.1 THD
*THD= Total Harmonic Distortion

(Message edited by whitechocolate on March 08, 2004)

By Tom Adrian (tommyadrian5) on Tuesday, March 09, 2004 - 5:45 am:    Edit Post Delete Post
The KX350.2 is .9%, so although it isn't the best, i think it will be ok, i'm not looking for audiophile stuff here, so i'm not too worried about it.
By Matt Heil (matt_h) on Tuesday, March 09, 2004 - 6:17 am:    Edit Post Delete Post
This may post wrong. Here are the stats from kickes pdf

Model KX300.2 KX400.2 KX500.2 KX800.2
RMS Power
In Watts, All Channels Driven
@ 13.8, 4Ohms Stereo, 0.085% THD 75 x 2 100 x 2 125 x 2 200 x 2
@ 13.8V, 2Ohms Stereo, 0.2% THD 150 x 2 200 x 2 250 x 2 400 x 2
@ 13.8V, 4Ohms Mono, 0.4% THD 300 400 500 800

(Message edited by matt_h on March 09, 2004)

By Steve Autry (whitevlx) on Tuesday, March 09, 2004 - 6:30 am:    Edit Post Delete Post
I just finished an install for a customer using a MTX Thunder 502, it really pumps out the juice. And yes definitely design your tower speaker system to be overpowered. Underpowering and driving to clipping is wht will kill any speaker.

RMS Power 12.5 VDC Input
2 Ohm Load 180 w x 2
4 Ohm Load 90 w x 2
Bridged 4 Ohm Load 360 w

Dynamic Power 14.4 VDC
2 Ohm Load 250 w x 2
4 Ohm Load 125 w x 2
Bridged 4 Ohm Load 500 w

(Message edited by whitevlx on March 09, 2004)

By Tom Adrian (tommyadrian5) on Tuesday, March 09, 2004 - 7:28 am:    Edit Post Delete Post
Steve, thanks for the info, i like those 502's, maybe i'll get one for the tower speakers.

I like that they are a smaller footprint than the kicker amps, if i get the 502 and a MTX class D amp for my sub i can probably fit them both on the inside of my walkway wall.

By Grant (whitechocolate) on Tuesday, March 09, 2004 - 9:22 am:    Edit Post Delete Post

13.8 Volts that's a non regulated power supply, Rockford Fosgate amps are the same. I have a HO alternator and 4 blue top batterys I dont see 13.8 volts, so as soon as the volts drop so does the power and the THD goes up as well as when you drop the Ohm's

By Dominic Tatro (domtatro) on Wednesday, March 10, 2004 - 5:40 pm:    Edit Post Delete Post
I got that running everything on my nautique. (B-530's, 4 Pioneer speakers in boat, and a 10' bazokaa tube sub) I thought it wouldnt be enough but due to the ammount of money i was limited to i was stuck with just one amp. I even managed to blow out my Sub with it. I havnt found any need to upgrade!

By MIKE O (batman) on Wednesday, March 10, 2004 - 8:57 pm:    Edit Post Delete Post
Is that my imagination or is your amp mounted under a drain? Just my observation!
By Jeff (socalwakepunk) on Wednesday, March 10, 2004 - 9:32 pm:    Edit Post Delete Post
Drain from the glove box. Have yet to ice it up.
By Robert (ag4ever) on Thursday, March 11, 2004 - 12:02 pm:    Edit Post Delete Post
Yup, the only time there is water in that drain is when you pull the plug on the glovebox icechest. I would be more worried about water spilling out the top side below the top dash area. The glove box is not fully sealed to the top deck, so during aggresive driving tehw ater can sling out over the side and get everything wet in the claimshell storage.
By Dominic Tatro (domtatro) on Thursday, March 11, 2004 - 6:39 pm:    Edit Post Delete Post
Yah, but we never use the glove box ice chest it is our junk stash!
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