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-   -   4 speakers on 2 channel amp (https://www.hdforums.com/forum/audio-systems/1248249-4-speakers-on-2-channel-amp.html)

shaneballance 08-12-2018 09:29 PM

4 speakers on 2 channel amp
 
Have a ARC Audio 2 channel amp that's 70x2 at 4ohm and 125x2 at 2ohm...I have 4 4ohm 6.5 speakers..can I run all 4 on this amp?

Moto Mike 08-12-2018 10:23 PM


Originally Posted by shaneballance (Post 17590187)
Have a ARC Audio 2 channel amp that's 70x2 at 4ohm and 125x2 at 2ohm...I have 4 4ohm 6.5 speakers..can I run all 4 on this amp?

Yes you can...wire 2 speakers on each channel in parallel. google parallel wiring... easier to see a diagram then explain!

shaneballance 08-12-2018 10:41 PM

So is it 125 each speaker? Or will it be 60 to each after parallel? .. I just want to make sure it's not going to blow the bike up.

Dsm Limited 08-13-2018 04:12 AM

It will essentially be 60w per speaker.

Juice 08-13-2018 07:12 AM

https://cimg1.ibsrv.net/gimg/www.hdf...e55672c385.png
Easy stuff, you got this

shaneballance 08-13-2018 09:06 AM

Got to be better then to 20w my radio puts out.im running a hd1bt Jensen radio.2 nvx 6.5 in fairing. 2 db+ 6.5 in tour pods.and hogtunes Tweeter pod..

mrmagloo 08-13-2018 10:15 AM

Just a quick question. If the ARC 125.2 is 2 ohm stable, and we are dealing with 4 ohm speakers, wouldn't it be better to run them in series instead of parallel? That is currently how the installer did my 125.2? Just wondering if I should try switching this??

Juice 08-13-2018 10:18 AM

series would increase the ohms and cut back on the power output of the amp. More resistance.

mrmagloo 08-13-2018 10:38 AM


Originally Posted by Juice (Post 17591126)
series would increase the ohms and cut back on the power output of the amp. More resistance.

Thanks Juice - Gosh, I'm really confused now. I thought that if you had 2 pairs of 4 ohm speakers and ran them in series, they then end up at 2 ohm?

Then with the ARC 125.2, this amp spec's at 70w @ 4 ohm or 125w @ 2 ohm, so when you go to series ending up with 2 ohm, you end up with more watt output, and overall better performance?

So you are saying that is all nonsense, and I should switch this to parallel? I was actually getting ready to upgrade to PN4.1000D to give a separate channel to each of the fairing and lowers. I wonder if changing from series to parallel is going to offer any improvement?

Thanks for your insight!

SBates08 08-13-2018 10:44 AM


Originally Posted by mrmagloo
Thanks Juice - Gosh, I'm really confused now. I thought that if you had 2 pairs of 4 ohm speakers and ran them in series, they then end up at 2 ohm?

Then with the ARC 125.2, this amp spec's at 70w @ 4 ohm or 125w @ 2 ohm, so when you go to series ending up with 2 ohm, you end up with more watt output, and overall better performance?

So you are saying that is all nonsense, and I should switch this to parallel? I was actually getting ready to upgrade to PN4.1000D to give a separate channel to each of the fairing and lowers. I wonder if changing from series to parallel is going to offer any improvement?

Thanks for your insight!

2 4ohm speakers ran in series gets you 8ohms.
2 4ohm speakers ran in parallel gets you 2ohms.


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