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New Member
Posts: 2
Registered: ‎01-23-2018

Subwoofer installation help

I have two JBL 300 RMS rated 10” subs and a 1200W Max Kicker amp that is rated for 600 continuous RMS power. It’s 300 watts per channel at 4ohms and 600 watts per channel at 2ohm.

I want to know if the Metra R5AK8 600watt, 8 AWG (8 guage) amp kit with RCA cable pro series will work better than their 4 guage kit (1500watt, 4awg) considering my sub setup is 600w together.

Which kit is more likely to blow my subs and what should I have my amp set at?

Planning on having Best Buy auto install system, thanks for the help!
Posts: 2,367
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Registered: ‎04-18-2017

Re: Subwoofer installation help

[ Edited ]

Greetings SethCarlisle-

 

I LOVED HOW MUCH INFORMATION YOU PROVIDED ME....*cough*  

 

Excuse me for shouting, the excitement got the best of me.   Welcome to the Best Buy forums!  Resting right at the 600W, you're on the cuff of 8AWG or 4AWG wiring.  My opinion with the Truconnex and the Kicker wire that we carry you'd be safe bumping up to the 4 AWG kits.  

 

Electrically speaking, you would want to allow the current to flow as easily as possible, and should you ever upgrade in the future, you're safe up to 1000W, when we would recommend our 0AWG kits.  You wouldn't necessarily do much harm right away, but if you can up to the 4AWG kit, I think you'll be able to have the peace of mind you're looking for!  

 

Our Kicker 600W amplifier, recommends using the 4AWG kicker wire, just to provide some of my reasonings.  I do hope this helps you out, and your local Geek Squad Autotechs are always there also.  Please let me know if I can answer any other questions or concerns you may have, and I'd be happy to help.  

 

Schedule Your Appointment!

JJ|Social Media Specialist | Best Buy® Corporate
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New Member
Posts: 2
Registered: ‎01-23-2018

Re: Subwoofer installation help

So if I’m not planning on upgrading my subs will the 8awg be fine? I’m worried the 4awg could potentially blow my subs. Plus the 8awg are a good bit cheaper and I’m on a budget. For the record, my subs are 4ohm. Thanks for the reply, it was very informative!
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Posts: 2,367
Topics: 53
Kudos: 195
Blog Posts: 3
Solutions: 113
Registered: ‎04-18-2017

Re: Subwoofer installation help

Hello Again SethCarlise-

 

Wising I were able to provide you with better news, the determination to recommend 4awg wiring was not based on anything besides amperage and length of the wire run.  Normally, the average amperage of a 600 watt amp will be around 60-65A, and a 10-15 foot run from the battery to the trunk, after you tuck it and hide it behind the bends and panels.  With this in mind, the eletrical guage chart would determine that you could run 8AWG, but its efficiency would be lacking with this small of guage.  

 

When you increase the number, the guage size shrinks, effectively shrinking the amount of strands the energy can travel on top of, but the guage of the wiring wouldn't have anything to do with damaging the subwoofers unless you were going smaller than 8awg, then we need to have a serious talk about fire hazards! 

 

Ultimately, the choice is yours on what you decide, but the manual does suggest using 4awg wiring, and the electrical chart backs this also.   Let me know if you have any other questions, and I'd be happy to help!

 

Truly, 

JJ|Social Media Specialist | Best Buy® Corporate
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