Liquid_force
Petty Officer 1st Class
- Joined
- May 7, 2003
- Messages
- 318
Hi -
We have a pair of tower speakers and an amp capable of 300-400w rms at full output -- of course it is rarely driven at full output. It has a pair of 15A fuses.
The concern is I am planning to add a couple subs in the foot well area along with a 2nd amp. Total theoretical power would be approaching 1000w rms. Again, most of the time running at 1/2 volume or less.
In a car I've always been told alternators are sized w/about 40% head room. It is common to run 1000w rms sound systems w/o significant impact on the charging system. I'm wondering if the same principle would apply in a boat?
I'm not sure what size the stock alt is. I want to think I saw 51A somewhere. DB electrical sells 65A replacements.
Basically I'd just like to accumulate some info on my current alt's specs, and the average current draw of the boat's standard electrical system.
We have a pair of tower speakers and an amp capable of 300-400w rms at full output -- of course it is rarely driven at full output. It has a pair of 15A fuses.
The concern is I am planning to add a couple subs in the foot well area along with a 2nd amp. Total theoretical power would be approaching 1000w rms. Again, most of the time running at 1/2 volume or less.
In a car I've always been told alternators are sized w/about 40% head room. It is common to run 1000w rms sound systems w/o significant impact on the charging system. I'm wondering if the same principle would apply in a boat?
I'm not sure what size the stock alt is. I want to think I saw 51A somewhere. DB electrical sells 65A replacements.
Basically I'd just like to accumulate some info on my current alt's specs, and the average current draw of the boat's standard electrical system.