6 speaker connection
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Stage II
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6 speaker connection
I have 2003 ultra classic with jvc stereo ,800 watt 4 channel soundigital amp connected using rca. 4 cerwin Vega 6.5 speakers in fairing and lowers. And hog tunes in tour pack all are 4 ohm. What is the best way to connect this all together.
HDF Community Team
Joined: Jan 2020
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From: Colorado
What amp, and can it take a 2 ohm load?
Hence if you wire the two 4ohm speaker to the one channel in series, would end up 8 ohm load, while if wired parallel, then end up with the load to the amp at 2ohms isntead.
Best would be to double up the front speakers with 2 speakers per channel wired parallel (not series), then add in a 3 or 4 ohm resistor to bring the 2ohm load back to a 5 or 6 ohm load, to make the back channel single 4ohm speakers about the same volume as the fronts, without bring any resistance below 4 ohms to the amp channels.
Note, common thinking will be 2ohm resistor to front channels,but problem is with two speaker at 4ohms load back to amp, the front channel with 2 speakers per channel will be louder than the single rear channel as the same ohm load. So by adding in another ohm or two on the front channel that has the two speakers on it, should have all the speakers about the same volumes.
As for in line resistors, figure out what the amp is pushing per channel at 4ohm load, and will need that in wattage on them.
Hence if you wire the two 4ohm speaker to the one channel in series, would end up 8 ohm load, while if wired parallel, then end up with the load to the amp at 2ohms isntead.
Best would be to double up the front speakers with 2 speakers per channel wired parallel (not series), then add in a 3 or 4 ohm resistor to bring the 2ohm load back to a 5 or 6 ohm load, to make the back channel single 4ohm speakers about the same volume as the fronts, without bring any resistance below 4 ohms to the amp channels.
Note, common thinking will be 2ohm resistor to front channels,but problem is with two speaker at 4ohms load back to amp, the front channel with 2 speakers per channel will be louder than the single rear channel as the same ohm load. So by adding in another ohm or two on the front channel that has the two speakers on it, should have all the speakers about the same volumes.
As for in line resistors, figure out what the amp is pushing per channel at 4ohm load, and will need that in wattage on them.
Last edited by Dano523; Sep 9, 2024 at 12:29 PM.
HDF Community Team
Joined: Jan 2020
Posts: 1,434
Likes: 800
From: Colorado
As stated, if you do 2ohm load in front with two speaker per channel wired in parallel, and 4 ohm load in rear with single power to each channel, then front is going to be much louder than rear.
The next thing that you need to check (call them) if thinking of running 2ohm load in front, and 4 ohm load in rear, to make sure amp handle the mixed loading of the 4 channels. If push cam to shove, could add resistors to rear 4omh speakers to lower there impedance down to 2 ohms to balance the channels, but will not make the 4 ohm speaker louder in the rear.
But run this by them,since can not tell for sure off the manuals, could run the front channels as stereo at 2ohm loads, the back channels bridged to mono (3 channel set up) to run both rear speakers wired to same mono channel for 2ohm load, but as stated, don't know if the amp will be stable with 2omn load rear channel bridged (since spec manual I'm looking at, calls out for a min of 4ohm load to bridged channels, and may have to add in a 2ohm resistor to bring the impedance back up to 4hm load for the rear channel bridge to mono to run the two rear speakers off it).
Hence of all the options, this may work the best, since would be better front to rear balance, with the back mono channel put out more power than front stereo channels, to make up for extra speakers up front that put out more volume than single speaker per channel alone. (132 watts up front per channel into the pair of speakers each per channel,and 400watts into both speakers on the back side with 2ohm resistor, plus could use the built in cross over to clip the highs from the rears, to use them as woofers alone more instead.
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