Power and ground wiring for amp
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Road Warrior
Joined: Jan 2006
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From: Omaha
Power and ground wiring for amp
I have received a lot of help on this forum for putting together my upgrades and I have placed orders for new quality speaker, power and ground wiring. I am using 16ga twisted pair speaker wires and 4ga power and ground wire with the correct connectors. I read somewhere on this forum a while back that twisting the power and ground wires together to make them twisted pair would help with cutting FM interference from the class d amp. What are your thoughts, is it worthwhile,have a downside or a total waste of time?
Stellar HDF Member
Joined: Feb 2016
Posts: 2,171
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From: Manitowoc county
I have received a lot of help on this forum for putting together my upgrades and I have placed orders for new quality speaker, power and ground wiring. I am using 16ga twisted pair speaker wires and 4ga power and ground wire with the correct connectors. I read somewhere on this forum a while back that twisting the power and ground wires together to make them twisted pair would help with cutting FM interference from the class d amp. What are your thoughts, is it worthwhile,have a downside or a total waste of time?
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Road Warrior
Joined: Jan 2006
Posts: 1,286
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From: Omaha
The instructions for the amp said to use 4ga so I would imagine it will.
" A 4 gauge or larger wire should be used for power and ground connections."
" A 4 gauge or larger wire should be used for power and ground connections."
Last edited by Springerfan; Jul 4, 2016 at 09:59 PM.
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From: SF Bay area
That was me that used the twisted pair power & ground wires, I ran them that way all the way to the battery from the amp (BT4180)
It was the only thing that helped my FM reception.
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It was the only thing that helped my FM reception.
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Elite HDF Member
Joined: Aug 2008
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From: S. FL
a bike does not produce enough juice to warrant a 4awg wire.
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Road Warrior
Joined: Jan 2006
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From: Omaha
It's an Arc moto 600.4 which I thought was designed for motorcycles and I copied that directly from the instructions for the amp. I thought it was abit large also and I have used 8ga on other amps but I assumed that they knew what they were talking about when they wrote the manual. What do you use haze?
Ultimate HDF Member
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From: TEXAS
Originally Posted by Springerfan
It's an Arc moto 600.4 which I thought was designed for motorcycles and I copied that directly from the instructions for the amp. I thought it was abit large also and I have used 8ga on other amps but I assumed that they knew what they were talking about when they wrote the manual. What do you use haze?
T.
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From: Hawkeye state
I think if u go down into the manual a bit in the "Installation" specific section, there is text that states 8 awg minimum in parens so at least u know that 8 will be acceptable. Pretty damn interesting to see this conflicting info but I would run with the 8 since it is stated as an acceptable minimum gauge.
T.
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Stellar HDF Member
Joined: Feb 2016
Posts: 2,171
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From: Manitowoc county
i used 8 ga pwr and grnd to battery, added an aditional ground from hu chassis(14 ga), twisted all 3 together, wrapped them in copper foil tape and maintained perfect fm teception on my aquatic av/cerwin vega B54 combo. was it all the prep work or just luck? no clue but i only wanted to do it once
Last edited by yooperhog; Jul 5, 2016 at 04:58 AM. Reason: adding text
Elite HDF Member
Joined: Aug 2008
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From: S. FL
The manual in that section is still referring to automotive installation where wire length needs larger gauge due to the longer runs. The 5-6 feet ran on a bike is plenty sufficient to 50 amp draw range in 8g for power and ground. Also twisting will have zero benefit on FM reception. Placebo effect. I have the cheapest crappiest antenna for FM known to man and still pick up few stations running 2 amps and phase 7 headlamp. Run the power on the left side to battery and ground to the right. The arc is well emi shielded and you should have majority of your stations still.