Dash Speaker Resistance Question

[PCA4208]

Recently bought new speakers to upgrade my stock ones. I bought the Mopar mid bass speakers 77KICK 41, to replace the stock door speakers but it seems they shipped me the wrong kit. I received the 77KICK42 package along with 3 - 3.5" speakers. I recently upgraded the dash to other Kickers and have plans to put in the 4 ohm resistor as it is necessary to keep from those drowning out the other speakers.

The question, are these 3.5" speakers that came with the kit 4 ohm and need the resistor as well; or are they 8 ohm and I could swap them out for the other kickers I installed and not have to worry about such things. I don't have a multimeter to check the resistance of them, already thought of that but mine is broken.

I don't have the alpine upgrade either just basic RA3 8.4" 6 speaker system.

 

[stimpy433]

@Graygoose , he should be able to answer this question for you.

 

[mtnrider]

Pretty sure they are 4 ohm from what I remember


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[PCA4208]

Pretty sure they are 4 ohm from what I remember


.

That's what I'm thinking as well. From reading posts it seems the alpine system (for which these are for) is 4 ohm to the dash. The stock is 8 ohm for the dash.

 

[kad]

I thought all the Alpine system speakers were 2 oHm?

-K

 

[bigred90gt]

I thought all the Alpine system speakers were 2 oHm?

-K

They are. I verified it with a multimeter before I swapped them out. They all came in between 2.1-2.3 ohm

 

[Nick14]

I have a non Alpine 6-speaker system. I replaced the door speakers with 4-ohm Pioneers. I replaced the dash with Kicker 3 1/2" 4 ohm. I assumed the dash were 4 ohm also. They were 8. Over powered the others. I measured the Kickers- 3.4 ohm. I bought 3 ohm, 25 watt resistors. Toned them down. If I had to do it again, I would have purchased 4 ohm resistors. Nick

 

[PCA4208]

Yup. Put in 4ohm resistors as well as 600hz bass blockers into the dash and they sound great. Didn’t end up using the molar Kickers but the CS series kickers that I had previously bought. The mopar doors did add some bass but I need more lol. Looking into a small subwoofer and amp for the speakers. I want to keep the stock wiring if I can, honestly don’t want to re wire a whole truck.


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[Graygoose]

sorry late to the party...yes, they are 4 ohm, which you've found out by now <doh>

 

[stimpy433]

sorry late to the party...yes, they are 4 ohm, which you've found out by now <doh>

Spending too much time on the GC forums are we..... Hahaha!!!

 

[Graygoose]

Spending too much time on the GC forums are we..... Hahaha!!!

haha not really, its way slower over there. LOL

 

[78Staff]

Yup. Put in 4ohm resistors as well as 600hz bass blockers into the dash and they sound great. Didn’t end up using the molar Kickers but the CS series kickers that I had previously bought. The mopar doors did add some bass but I need more lol. Looking into a small subwoofer and amp for the speakers. I want to keep the stock wiring if I can, honestly don’t want to re wire a whole truck.


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So you put bass blockers and 4 ohm resistors inline on the 3.5 dash speakers? I'm getting ready to swap out a AX-DSP and put in a RF DSR1, and would like to tone down the front - they've always been too bright. Running Alpine r2 6x9's in the Front Doors and Kicker KS35's in the dash.

Prior to amping, I had blockers on the dash but they weren't rated high enough once I added JL Audio amps... Need to find some better ones and put them back in.

So the 4ohm resistor does what to the load for the front door/dash combo? IIUC 4ohm door + 4ohm dash equals 2ohm load. My amp will handle that, but it overpowers the rear doors running at 4ohm load, and is very bright up front as already mentioned.

 

[PCA4208]

The resistor basically is taking the load for the stock wiring and HU back to stock as the stock dash speaker is 8 ohm. I know I lose power in the resistor but honestly if I end up adding an amp I'll most likely rewire at least the dash speakers to have their own leads. I made the resistor and bass blocker one unit that is removable and didn't mess with any of the stock wiring. The resistor I could find was 20w so I figure its a total waste to keep it in there if putting in an amp.

 

[KC Cryptkeeper]

Bass Blockers, that's some funny stuff. Old people call them caps.

 

[duckman631]

Yup. Put in 4ohm resistors as well as 600hz bass blockers into the dash and they sound great. Didn’t end up using the molar Kickers but the CS series kickers that I had previously bought. The mopar doors did add some bass but I need more lol. Looking into a small subwoofer and amp for the speakers. I want to keep the stock wiring if I can, honestly don’t want to re wire a whole truck.


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I did the kicker upgrade about a year ago and did the resistors in the front dash speakers. First time I’m hearing about these bass blockers. What is that and what does it do? Thanks!

 

[crash68]

Bass Blockers, that's some funny stuff. Old people call them caps.

It's a marketing thing..
A couple of caps from the electronics store is a about a $1, a set of bass blocker $10

 

[Graygoose]

some speakers have them built in.

 

[78Staff]

That's one of the things that bothers me about the Ram, the way they wired the front speakers. If I roll off bass with EQ/DSP then it rolls off the front door spears too .

That plus the odd 8 ohm dash / 4 ohm door setup. My Kicker dash speakers have survived running full range of the RD400 so far, but since they are running at 2ohm since door/dash are wired in parallel, they are really bright.

Since there aren't really any quality mobile audio 8 ohm dash speakers, I guess the real fix is to change the wiring and putting them on there own channel(s), or switching to some sort of 2pc. component setup. Or keep fading a bit to the rear .

 

[Graygoose]

Bi-amp them to me is best, then you have control.
I used our KEY amp, then I can always add a bigger 4 channel amp, keep DSP and time alignment and use KEY as pre-amp.

 

[HTXRamExp]

[emoji106], good stuff!



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