Wake 101
Home   Articles   Pics/Video   Gear   Wake 101   Events   Community   Forums   Classifieds   Contests   Shop   Search
WakeWorld Home
Email Password
Go Back   WakeWorld > >> Boats, Accessories & Tow Vehicles Archive > Archive through August 01, 2004

Thread Tools Display Modes
Old    sonicr1            07-25-2004, 9:20 PM Reply   
OK, so I got three Sony 1200 watt amps. I have one 1000cca battery.

I am going with a fused distribution block for positive and a distribution block for negative. The manual says to put the fuse no more than 18 inches from battery. Since I have a fused distribution block, where do I put it? Do I put it near the batteries, or can I put it near the amps?

If I get another battery, can I put it in under the dash by the amps, or should I leave it near the other one (if I get a second battery I will get an isolator too).

Will I need a Cap? I read on another post that it wouldn't be necesary for a system that wasn't that big (which this isn't).

I'll have more questions later, I'm sure... :-)
Old     (mikeski)      Join Date: Aug 2003       07-25-2004, 11:07 PM Reply   
Fuse at the battery in case the wire gets a short to protect from a fire. Fuse at the distribution block to protect the downstream wire and the amp, you need both. Talk to Grant about the cap.
Old    sonicr1            07-26-2004, 5:09 AM Reply   
What size fuse will I need at the battery then??? if they all require 80 amps each, then should I use 240 amp fuse at the batter, do they make one that big?
Old    sonicr1            07-26-2004, 6:07 AM Reply   
Oh yeah, and should I go to a second battery, or am I ok with the one (if I do, it will be the same 1000cca battery I already have).
Old     (gundogg)      Join Date: Feb 2004       07-26-2004, 7:13 AM Reply   
YOu could put a circuit breaker at the battery.
Old    sonicr1            07-26-2004, 7:18 AM Reply   
I figure I'll go with the circuit breaker, but what amperage? do I need a 240 amp breaker, or can I use something else since the amps won't be pulling 80 amps all the time?
Old    bigd            07-26-2004, 10:14 AM Reply   
Don't go bigger than 200 amps on 0 gauge wire.
Old    sonicr1            07-26-2004, 12:22 PM Reply   
k, will that be enough?
Old    bigd            07-26-2004, 1:37 PM Reply   
Your fuses will blow at 80 amps. The power your amps will draw on a regular basis is a lot less. I'm no guru (see Grant for that), but I believe the rule of thumb would be no bigger than 200 amp fuse on 0 gauge and no bigger than 100 amp fuse on 4 gauge. If your amps are fuesed at 80 amps then run 4 gauge wire to each of them.
Old    sonicr1            07-26-2004, 2:19 PM Reply   
yeah, I figure I would have a power cable run to a fused dist block then 4 guage to the amps... I guess I can run two 2 guage to the block, and use 120 amp fuses.
Old     (mikeski)      Join Date: Aug 2003       07-26-2004, 10:53 PM Reply   
What you should probably be more concerned with is where are you mounting those amps? I have heard those Sony amps run very hot, like frying pan hot.

Back to the wiring, I would run 3 individual #8 thhn reds with 50 amp fuses at the battery and 3 #8 thhn black grounds from the battery. In a boat the grounds are just as important as the hots. Start low and increase if necessary I am guessing that the 50 amp fuses will hold unless you let your voltage get too low.

Keep in mind that every junction point is a source of problems. All those junctions for your power and grounds provide lots of junctions points to get loose,corrode, or otherwise cause problems.
Old    sonicr1            07-27-2004, 9:42 AM Reply   
OK, went to a stereo shop yesterday, they do a lot of boats... my buddy got his done there... anyhoo, I ended up with 0/1 guage wiring from battery with a 300 amp fuse at the battery, to a fused distribution block, then 4 guage wiring to amps... the same with the ground side. The guy at the shop said that would even be overkill, but with this setup I could always go bigger in the future.

And as for the amps, my last sony ran hot, they will be in the storage area under seat, and I am working on a vent/fan setup... just above the amps, there is a vent, so it shouldn't be a problem getting cool air in there.

My concern is the battery... I figure it won't be long before I go to two and a HO alternator... man this hobby keeps costing me a ton of money!!!

My dad bought a powered bazooka bass tube about4 years ago for his old boat... now every time he looks in my boat, he asks, "wheres the tube I bought?" Just for giggles, I'm putting it in the front of the boat... :-)

Old     (mikeski)      Join Date: Aug 2003       07-27-2004, 4:32 PM Reply   
Run 2 6v golf cart batteries if you plan to listen to it with the engine off for very long.

I bet your dad thinks that bazooka tube rocks...

(Message edited by mikeski on July 27, 2004)
Old    sonicr1            07-27-2004, 8:38 PM Reply   
lol... yes he does!!!! how did you know???


Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On

All times are GMT -7. The time now is 12:48 PM.

Home   Articles   Pics/Video   Gear   Wake 101   Events   Community   Forums   Classifieds   Contests   Shop   Search
Wake World Home


© 2016 eWake, Inc.    
Advertise    |    Contact    |    Terms of Use    |    Privacy Policy    |    Report Abuse    |    Conduct    |    About Us