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Old 10-06-2011, 10:28 AM
agarabaghi agarabaghi is offline
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Running 2 amp off 1 breaker?

So i have 120amp breaker which goes to the SYN 6 in my boat... how bad would it be to attach another amp to that 120 amp breaker?
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Old 10-06-2011, 10:34 AM
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What is the fuse size in the SYN 6?
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Old 10-06-2011, 11:00 AM
agarabaghi agarabaghi is offline
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4x 30amps on the syn6

the other amp is a Cadence A7HC which has no internal fues, but usually we run an 80 - 100amp inline fuse from the battery to it
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Old 10-06-2011, 11:00 AM
agarabaghi agarabaghi is offline
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also, the breaker is actually 150amps, not 120amps
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Old 10-06-2011, 11:10 AM
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Quote:
Originally Posted by agarabaghi View Post
So i have 120amp breaker which goes to the SYN 6 in my boat... how bad would it be to attach another amp to that 120 amp breaker?
Where is the breaker- at the battery? If that's the case, you're fine doing this. The fuse on am amp is only to protect the amp but the one at the battery is there to protect you and your boat. As long as the devices don't launch the fuse or breaker on a regular basis or the power cable is adequate for the load, you'll be fine. The cable issue is capable of causing the breaker to pop and if the two amps take their power from the same cables, use a distribution block for positive and negative. Power and ground are absolutely the most important connections and if the cable is too small or the connections cause the voltage to drop, you'll have alternator whine and your amps won't last long because they'll run hot.
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Old 10-06-2011, 11:47 AM
agarabaghi agarabaghi is offline
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They are all 4 gauge... so basically it will be:

4awg from battery to 150amp breaker, then (2) 4awg wires going to the syn6 and to the Cadence A7HC.
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Old 10-06-2011, 12:14 PM
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Originally Posted by agarabaghi View Post
They are all 4 gauge... so basically it will be:

4awg from battery to 150amp breaker, then (2) 4awg wires going to the syn6 and to the Cadence A7HC.
How far from the battery to the amps? 4ga is only good for about 60A at 8'. You would be better off using 2ga or 1/0 from the battery to the distribution block if it's more than about 10'. One 4ga won't be enough.

Do the math for your fuses. Worst case is the actual total but average use will be about 1/2, unless the amps are Class D, which WetSounds aren't.
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Old 10-06-2011, 12:31 PM
agarabaghi agarabaghi is offline
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The syn6 is not, but it is Class H and G/H hybrid, so sitll pretty efficient. the Cadence is Calss D.

The battery is maybe 1ft from the amps.
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Old 10-06-2011, 12:34 PM
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Originally Posted by agarabaghi View Post
The syn6 is not, but it is Class H and G/H hybrid, so sitll pretty efficient. the Cadence is Calss D.

The battery is maybe 1ft from the amps.
Your battery is under the spotter's seat? That should be OK.
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Old 10-06-2011, 02:34 PM
agarabaghi agarabaghi is offline
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Yea, both of them are.
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