2012 FLHX Lower Fairing speakers
Road Captain
Joined: Aug 2005
Posts: 510
Likes: 78
One thing to keep in mind is speakers in the lowers generally need more power (or at least the ability to fade/adjust the level) in order to be heard with the fairing speakers. If all four speakers are run off of the same amp channels (parallel) I wonder if the lowers would be heard much at all.
To try lowers on the cheap I wonder if he could bridge the current amp to feed just the fairing speakers and get another budget amp to drive the lowers.
To try lowers on the cheap I wonder if he could bridge the current amp to feed just the fairing speakers and get another budget amp to drive the lowers.
I would lean towards adding a second amp, and a better set of speakers to the lowers.
There are better speakers than the ones you have now, but if you are happy with them, leave them in the fairing off the current amp for now.
You are going to want more volume out of your lowers so they can be balanced with the fairing speakerspeakers.You could upgrade your current amp, or just add second amp for the lowers.
I would probably a Sound Digital SD400.4 bridge it to the lowers.Maybe consider a set of Mmats coax, GZ Coax, or DB Moto G2'S for the lowers. Not everyone likes the G2's, but I like them out of the lowers. As for the GZ or Mmats coax, they would also be a great upgrade to the fairing if you decide to swap out your current fairing speakers down the road.
There are better speakers than the ones you have now, but if you are happy with them, leave them in the fairing off the current amp for now.
You are going to want more volume out of your lowers so they can be balanced with the fairing speakerspeakers.You could upgrade your current amp, or just add second amp for the lowers.
I would probably a Sound Digital SD400.4 bridge it to the lowers.Maybe consider a set of Mmats coax, GZ Coax, or DB Moto G2'S for the lowers. Not everyone likes the G2's, but I like them out of the lowers. As for the GZ or Mmats coax, they would also be a great upgrade to the fairing if you decide to swap out your current fairing speakers down the road.
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Intermediate
Joined: Jul 2014
Posts: 34
Likes: 2
From: Fredericksburg, VA
its a Jensen XDA92RB, 600w peak, 80w RMS x 2ch @ 4ohm, 240w RMS x 1ch @ 4ohm bridged. Do I know what all means, no. But the speakers had a rating of 100w RMS, so it seemed like a good combo, especially for the cost. Reading this helps me understand why this amp will not power 4 speakers in the same class. I need a beefier amp and two more 6.5 speakers (i think)... thanks guys.
Road Warrior
Joined: Feb 2016
Posts: 1,354
Likes: 399
From: Vancouver, BC
its a Jensen XDA92RB, 600w peak, 80w RMS x 2ch @ 4ohm, 240w RMS x 1ch @ 4ohm bridged. Do I know what all means, no. But the speakers had a rating of 100w RMS, so it seemed like a good combo, especially for the cost. Reading this helps me understand why this amp will not power 4 speakers in the same class. I need a beefier amp and two more 6.5 speakers (i think)... thanks guys.
I think it's probable that you will need a higher power amp but why spend more money than you need to until you have at least tried the lower-cost option?
Last edited by hamah; Oct 6, 2021 at 02:57 AM.
Grand HDF Member
Joined: Sep 2017
Posts: 3,826
Likes: 980
From: Southern Virginia
Man, that Jensen is an awfully big amp to have such a meager power output. I guess part of the selling point is bluetooth control, but unfortunately there really ain't much to control.
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Intermediate
Joined: Jul 2014
Posts: 34
Likes: 2
From: Fredericksburg, VA
How do you know your amp won't power 4 speakers? Have you read the article I linked above? Currently, you are running 2 channels at 4 ohms at 80W RMS. But this amp will also put out 120W RMS for 2 channels at 2 ohms. If you drop another pair of 4-ohm speakers into the lowers and run them in parallel with the fairing speakers, you will be offering the amp a 2-ohm load for the 4 speakers on 2 channels and getting around 50% more power output. Are you happy with the SPL (volume) you currently get with the amp and 2 speakers? If so, or if you wouldn't mind a little more oomph, then why not just try dropping the 2nd set of 4-ohm speakers into the lowers? If it all works out, great. If not, then look to putting in a bigger amp.
I think it's probable that you will need a higher power amp but why spend more money than you need to until you have at least tried the lower-cost option?
I think it's probable that you will need a higher power amp but why spend more money than you need to until you have at least tried the lower-cost option?
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Intermediate
Joined: Jul 2014
Posts: 34
Likes: 2
From: Fredericksburg, VA
Big as in size? Its actually pretty small. It was $60 at Walmart. I didnt plan on an augmdio upgrade. So it was all quick buys. I had a speaker crap out. Replaced with 5.25s 2ohms. Then 2 weeks later the HU started actin up. The Aquatic HU didnt seem loud enough or something, so I was like funk it, I need an Amp and 6.5 speakers. Sounds good... so far
Currently, you are running 2 channels at 4 ohms at 80W RMS. But this amp will also put out 120W RMS for 2 channels at 2 ohms. If you drop another pair of 4-ohm speakers into the lowers and run them in parallel with the fairing speakers, you will be offering the amp a 2-ohm load for the 4 speakers on 2 channels and getting around 50% more power output. Are you happy with the SPL (volume) you currently get with the amp and 2 speakers? If so, or if you wouldn't mind a little more oomph, then why not just try dropping the 2nd set of 4-ohm speakers into the lowers? If it all works out, great. If not, then look to putting in a bigger amp.
My personal experience says 125-150 watts per channel is the minimum a guy needs to truly enjoy tunes at 75-80 mph.
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Grand HDF Member
Joined: Sep 2017
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Likes: 980
From: Southern Virginia
Big as in size? Its actually pretty small. It was $60 at Walmart. I didnt plan on an augmdio upgrade. So it was all quick buys. I had a speaker crap out. Replaced with 5.25s 2ohms. Then 2 weeks later the HU started actin up. The Aquatic HU didnt seem loud enough or something, so I was like funk it, I need an Amp and 6.5 speakers. Sounds good... so far
The reason I said it is big for its power output is because an SD 800.4 that puts out 4 x 147 watts is a tad smaller:
800.4 EVOX
In looking at the specs Jensen claims that little stinker does 240 watts x 1 bridged. I really doubt it would do that, but let's say it would do 200. Anyone game for buying two of these for $120 total and seeing what they could do with them
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Intermediate
Joined: Jul 2014
Posts: 34
Likes: 2
From: Fredericksburg, VA
Dang, if it was that cheap do you think you could fit another one in there for the lowers? Might be a cheap experiment that would give you 80 watts for each speaker. That's not enough for GOOD sound, but it would certainly give you better sound.
The reason I said it is big for its power output is because an SD 800.4 that puts out 4 x 147 watts is a tad smaller:
800.4 EVOX
In looking at the specs Jensen claims that little stinker does 240 watts x 1 bridged. I really doubt it would do that, but let's say it would do 200. Anyone game for buying two of these for $120 total and seeing what they could do with them
The reason I said it is big for its power output is because an SD 800.4 that puts out 4 x 147 watts is a tad smaller:
800.4 EVOX
In looking at the specs Jensen claims that little stinker does 240 watts x 1 bridged. I really doubt it would do that, but let's say it would do 200. Anyone game for buying two of these for $120 total and seeing what they could do with them
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