Stereo Plans
Cruiser
Joined: Apr 2005
Posts: 216
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From: Michigan
Ultra, I just pulled the trigger on 4 Polk mm651's from Amazon for my fairing and lower installation. I am planning on tracking down the RF PBR300x2. Will the speakers need to be wired in "series" or "parallel"? Not sure what the diff is but it sounds important. Thanks!
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Joined: Jan 2013
Posts: 75
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From: Jacksonville, FL
Ultra, I just pulled the trigger on 4 Polk mm651's from Amazon for my fairing and lower installation. I am planning on tracking down the RF PBR300x2. Will the speakers need to be wired in "series" or "parallel"? Not sure what the diff is but it sounds important. Thanks!
Extreme HDF Member
Joined: Nov 2007
Posts: 14,670
Likes: 139
From: East of the Sun, West of the Moon
Ultra, I just pulled the trigger on 4 Polk mm651's from Amazon for my fairing and lower installation. I am planning on tracking down the RF PBR300x2. Will the speakers need to be wired in "series" or "parallel"? Not sure what the diff is but it sounds important. Thanks!
"The amp is stable at 2 ohms so you want to find 2 pair of speakers that you like that are 4 ohm."
If you want to use the PBR300x2 amp, then you'll need to find 2 pair of good 4 ohms speakers such as Hertz, Focal, Titan II, etc. This way you can wire them in parallel to create a 2 ohm load the amp will see. This is your best option for the RF amp.
If you want to move over to the SS amp, then you would use the MM651 speakers and wire each speaker individually to each of the 4 channels of the amp. Because the SGs don't come with the harness for the rear speaker outputs of the radio you can either buy the connector/pins and create your own output harness, buy the HD overlay or iPod module harness, or you can simply use a PAC SNI-35 speaker wire to RCA adapter with 2 rca Y adapters, 2 short RCA cables and plug all 4 of the RCAs into the amp. IMO this is the lesser expensive/time consuming route. If you want to be able to fade from fairing to lowers then you'll need to either create the 35 pin plug for the outputs, buy the overlay or iPod harness + you'll need to have the fader activated at your local dealer.
Extreme HDF Member
Joined: Nov 2007
Posts: 14,670
Likes: 139
From: East of the Sun, West of the Moon
1.) yes sir no problem there. but here's what I would do which would be a better setup IMO.
- front and rear high level outputs (speaker wires) from radio to amp high level inputs front and rear. Leave your rear speaker wires connected to the headunit.
- This will provide for fader control from fairing speakers to lowers which I feel you'll need.
- Make sure you put some sort of insulating connector on the rear speaker wires so when you take your tourpak off, the wires don't short.
I was looking at one other option and just wanted to verify my understanding. If I decided to do Polk MM651's in the fairing and in the lowers I could still use the rear output on the stereo to drive the rear speakers for when the tour pak is still installed, correct?
My other question is with regard to the wiring diagram previously posted. To make it work where the fairing speakers and the lowers are both run off what the HD radio considers the front, would it require me splicing the front output wires from the head unit to both inputs on the amp?
Thanks for all the help UltraNutZ! Between your posts here and Google image searches for the amp, I think I've got a pretty solid idea of what the wiring will need to look like. I just want to make sure that when I do start splicing I wire it all up in the most optimal way and not just a way that will work thanks to electric theory, but might not be the best setup.
My other question is with regard to the wiring diagram previously posted. To make it work where the fairing speakers and the lowers are both run off what the HD radio considers the front, would it require me splicing the front output wires from the head unit to both inputs on the amp?
Thanks for all the help UltraNutZ! Between your posts here and Google image searches for the amp, I think I've got a pretty solid idea of what the wiring will need to look like. I just want to make sure that when I do start splicing I wire it all up in the most optimal way and not just a way that will work thanks to electric theory, but might not be the best setup.
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Joined: Jan 2013
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From: Jacksonville, FL
Alright, just ordered the adapter from Amazon. Now I've just got to get everything else. I'm still kicking around the original plan with the DB651's up front and the MM651 in the back as it would realistically cost about the same and upgrade the tour pak as well for when it's on, just indecisive at the moment.
Cruiser
Joined: Apr 2005
Posts: 216
Likes: 37
From: Michigan
Ultra,
Now you have me way nervous. The PBR300x2 is on its way and so are the four Polk MM651's. Is this beyond redemption??? Thanks so much for helping out those of us that have a hard time spelling "radio"!
Now you have me way nervous. The PBR300x2 is on its way and so are the four Polk MM651's. Is this beyond redemption??? Thanks so much for helping out those of us that have a hard time spelling "radio"!
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Joined: Jan 2013
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From: Jacksonville, FL
Your resistance when in series will be about 5 ohms though, which means you're losing at least half the amps power capability. That's why Ultra recommended the 4 ohm speakers wired in parallel or the SS amp.