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amp short protection, power issues?


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wayne_eyez 
Member - Posts: 2
Member spacespace
Joined: November 07, 2008
Posted: November 07, 2008 at 9:12 AM / IP Logged  

Hey guys... firstly im from south africa, so the brand might not be fimiliar, but i shall explain to the best of my ability....

i bought a 3600watt(PEAK) Star Sound (SSA 3600.2) and a 5200watt(PEAK) Star Sound Digital monoblock (SSA-S1D-5200) amplifiers. With the 3600w (2ohm stereo stable) when connected with a 2Ohm stereo load.. as the volume is turned up the amp cuts off...? any suggestions?

With the 5200watt (1ohm stable) - a 2ohm or 4ohm load the amplifier goes onto "short protection" at higher volumes.(Amp cuts off)
could it be that there is insufficient power form the car battery, coz the battery is relatively small.

Battery636C
20 hour Cap ( Cn )40
Reserve Cap ( Cr,n)55
Cold Cranking ( Is)195
Hold DownsB0

Please any suggestions would be greatly apprieciated.

Oh and i have checked the load with a multimeter.
iv also checked the charging when the car is idling... the voltage neva drops bellow 13.8v before the amp cuts off.
The Auto electrician that checked the charging for me tol me that although the alternator charge is correct, the amount of current that the amp needs is too much for the battery and i should replace the battery with a bigger one... the problem is i got a 96 Toyo Corrolla and the is NO space for a bigger battery inda the front....

I am not sure if clipping can cause the amp to cut off, but theres NO distorsion b4 the amp cuts off

Any suggestions pleeeeeease and Thank you

4 gauge cabling for power/ground,  

wayne_eyez 
Member - Posts: 2
Member spacespace
Joined: November 07, 2008
Posted: November 07, 2008 at 9:13 AM / IP Logged  
sorry bout the formatting guys... i copied the info from another site.
joselmartinez 
Member - Posts: 8
Member spacespace
Joined: October 22, 2008
Location: New York, United States
Posted: November 07, 2008 at 9:29 AM / IP Logged  
well with those amps you need a constant 14.4 volts, first you need to upgrade the alternator, the big 3 and add a second battery. then you have to use 0 gauge wire to power and the same to ground. make sure you use tha appropiate fuse for the system.
DYohn 
Moderator - Posts: 10,741
Moderator spaceThis member has made a donation to the12volt.com. Click here for more info.spaceThis member has been recognized as an authority in Electrical Theory. Click here for more info.spaceThis member has been recognized as an authority in Mobile Audio and Video. Click here for more info.spacespace
Joined: April 22, 2003
Location: Arizona, United States
Posted: November 07, 2008 at 10:57 AM / IP Logged  
Your voltage at 13.8 is normal so it doesn't sound like a power issue.  I suggest reading the "how to set your gain" sticky and following those directions, and also read the "what is a proper ground" sticky and measure your ground return resistance, and improve it if necessary.
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