• Sign Up! To view all forums and unlock additional cool features

    Welcome to the #1 Dodge, Jeep and RAM Forum dedicated to FCA owners and enthusiasts. Register for an account, it's free and it's easy, so don't hesitate to join the SRT Forum today!


Audio upgrade questions

Member ID
#20177
Messages
14
Reactions
12
Likes
2
City
Navarre
State
FL
Country
United States
Vehicle
2023 Challanger
#61
Sometimes it's cheaper to pay more for something better in the beginning.
Covidcommander, absolutely, I agree with that! I actually was ready to spend even more on the JL Audio Stealth box but after in depth research, many issues surface in my application due to the Bilstein adaptive suspension module mounted where the Stealth box would reside and all of the issues that creates, otherwise I probably would have spent even more. Back to the HK twin sub oem box versus the JL Audio powered sub. The question I had to consider is does one actually sound or perform better, or last longer than the other regardless of price? When it comes to the powered JL, it seems to have a pretty good record, and it is all new with a warranty. The HK even new would have to be modified, still no warranty and would it actually perform any better? Just alot of unknowns there with each choice. Hopefully I made the best decision. Will see here soon!
 


Diboblo

5000 Posts Club
Founding Member
Wiki Contributor
Member ID
#1044
Messages
5,286
Reactions
28,043
Likes
352
City
Riverside
State
CA
Country
United States
Vehicle
2015 Dodge Charger Hellcat!
#62
I went down that rabbit hole.

Bought, modified and installed the HK dual sub box. Ran it for a little while. Rated at about 75 watts RMS, it does a good job of delivering what I call "fill" bass. It won't wow you. It just fixes that low end imaging that some systems need.

I am retarded, however. A long time bass head. So... it wasn't long before I gave the entire box the beans. New 10" low profile subs, gutted the OEM wiring, inside the box (including connector) wired the new dvc subs in parallel, then series, for a 2 ohm total load. Pushed it with a Kicker 400.1 Class D amp and walked away.

Man... what a raging animal that system is, now. Not obnoxious, but it is exactly what I wanted.

I recently upgraded to a more efficient Class D Mosfet amp. Still in the tuning stages, but the imaging is already much better

I've had it both ways and was very happy with the first iteration. However, as most here know, I'm the resident mad scientist and can't keep my hands off anything electronic, for long. LOL

Looking forward to seeing the OP installation and always glad to see constrictive conversations, here.
 


Member ID
#20177
Messages
14
Reactions
12
Likes
2
City
Navarre
State
FL
Country
United States
Vehicle
2023 Challanger
#63
I went down that rabbit hole.

Bought, modified and installed the HK dual sub box. Ran it for a little while. Rated at about 75 watts RMS, it does a good job of delivering what I call "fill" bass. It won't wow you. It just fixes that low end imaging that some systems need.

I am retarded, however. A long time bass head. So... it wasn't long before I gave the entire box the beans. New 10" low profile subs, gutted the OEM wiring, inside the box (including connector) wired the new dvc subs in parallel, then series, for a 2 ohm total load. Pushed it with a Kicker 400.1 Class D amp and walked away.

Man... what a raging animal that system is, now. Not obnoxious, but it is exactly what I wanted.

I recently upgraded to a more efficient Class D Mosfet amp. Still in the tuning stages, but the imaging is already much better

I've had it both ways and was very happy with the first iteration. However, as most here know, I'm the resident mad scientist and can't keep my hands off anything electronic, for long. LOL

Looking forward to seeing the OP installation and always glad to see constrictive conversations, here.
Hello Diboblo,
Very interesting! Wishing I could have heard all iterations of your HK system. All I can go by is what the entire HK system sounded like in my first 2023 Challenger. Honestly I wasn't wanting for any changes in it. I couldn't find another Scat Pack last call Challenger with the different equipment I wanted and also with the HK stereo. If I could have I wouldn't be changing or adding a thing. That's the way it goes. Hoping the 10 speaker Alpine with this JL Audio ACS110LG-TW1 will give me comparable sound. If I may, would you care to comment on the patch connection to the 8 inch free air dual voice coil wiring in the rear deck. Some say leave the 8 inch sub disconnected. Others say leave it connected. Some say connect one voice call positive and negative to left channel input of JL amp and other voice coil positive and negative to right channel input of JL amp. How would you do it? Have you ever checked the voltage output available to the sub at high volume levels with the oem HK or Alpine system in the Charger or Challenger? One person mentioned with this specialized JL amp and very low ohm sub is designed to run on max 5.4 volts connected to high level signal. This was a specification I've never considered or thought about before.
 


covidcommander

500 Posts Club
Member ID
#7706
Messages
910
Reactions
1,356
Likes
132
City
Clementon
State
NJ
Country
United States
Vehicle
2018 Charger
#64
Hello Diboblo,
Very interesting! Wishing I could have heard all iterations of your HK system. All I can go by is what the entire HK system sounded like in my first 2023 Challenger. Honestly I wasn't wanting for any changes in it. I couldn't find another Scat Pack last call Challenger with the different equipment I wanted and also with the HK stereo. If I could have I wouldn't be changing or adding a thing. That's the way it goes. Hoping the 10 speaker Alpine with this JL Audio ACS110LG-TW1 will give me comparable sound. If I may, would you care to comment on the patch connection to the 8 inch free air dual voice coil wiring in the rear deck. Some say leave the 8 inch sub disconnected. Others say leave it connected. Some say connect one voice call positive and negative to left channel input of JL amp and other voice coil positive and negative to right channel input of JL amp. How would you do it? Have you ever checked the voltage output available to the sub at high volume levels with the oem HK or Alpine system in the Charger or Challenger? One person mentioned with this specialized JL amp and very low ohm sub is designed to run on max 5.4 volts connected to high level signal. This was a specification I've never considered or thought about before.
I saw directions for using the powered sub on here with a separate amp. Seems like that would be the way to go. Was thinking about adding it to my 6 speaker charger. Sounds horrible stock compared to the hk.
 


GNBRETT

1000 Posts Club
Member ID
#9039
Messages
1,040
Reactions
1,423
Likes
162
City
Kingsport
State
TN
Country
United States
Vehicle
Trackhawk, RS3 Swapped Golf R, Turbo Stang, Golf R
#65
Um.... no. I had the Diablosoprt suspension module. It doesnt interfere or get in the way at all IDN who's telling u that but thats complete BS. The Stealth Box for one isnt HARD mounted and unremovable. One screw and it comes out, pull the carpet back and there is ur suspension controller.

What issue is it supposed to be creating? The suspenion controller doesnt stop working cause the car has bass now. If that was the case then ANY decent bass would do that. Bass isnt specific to one area bro the whole car feels it and so do u YOU sitting in the drivers seat it makes ZERO difference where the sub is located.

I never had one issue ever worked flawlessly...... Not to mention that suspension controller doesnt do shit anyway unless u get the DSC version which is adjustable unlike the Diablosport version.

With a decent amp the Stealbox will out perform ANY of the JL sub boxes with built in amps. ANY..... Ive tried many over several years the Stealbox is just the best for this application when wanting to still have a trunk. Its REALLY small and out of the way and puts out REALLY good bass.

Covidcommander, absolutely, I agree with that! I actually was ready to spend even more on the JL Audio Stealth box but after in depth research, many issues surface in my application due to the Bilstein adaptive suspension module mounted where the Stealth box would reside and all of the issues that creates, otherwise I probably would have spent even more. Back to the HK twin sub oem box versus the JL Audio powered sub. The question I had to consider is does one actually sound or perform better, or last longer than the other regardless of price? When it comes to the powered JL, it seems to have a pretty good record, and it is all new with a warranty. The HK even new would have to be modified, still no warranty and would it actually perform any better? Just alot of unknowns there with each choice. Hopefully I made the best decision. Will see here soon!
 


Member ID
#20177
Messages
14
Reactions
12
Likes
2
City
Navarre
State
FL
Country
United States
Vehicle
2023 Challanger
#66
Um.... no. I had the Diablosoprt suspension module. It doesnt interfere or get in the way at all IDN who's telling u that but thats complete BS. The Stealth Box for one isnt HARD mounted and unremovable. One screw and it comes out, pull the carpet back and there is ur suspension controller.

What issue is it supposed to be creating? The suspenion controller doesnt stop working cause the car has bass now. If that was the case then ANY decent bass would do that. Bass isnt specific to one area bro the whole car feels it and so do u YOU sitting in the drivers seat it makes ZERO difference where the sub is located.

I never had one issue ever worked flawlessly...... Not to mention that suspension controller doesnt do shit anyway unless u get the DSC version which is adjustable unlike the Diablosport version.

With a decent amp the Stealbox will out perform ANY of the JL sub boxes with built in amps. ANY..... Ive tried many over several years the Stealbox is just the best for this application when wanting to still have a trunk. Its REALLY small and out of the way and puts out REALLY good bass.
Hello GNBRETT,
Well, that's good information but here's what I based my decision on. The Stealth box being a 12 inch and JL designed just for the Challenger (I don't recall, do you have a Challenger or Charger?) that it might perform the best. The Charger Stealth box it a different sub from JL. I don't have a Diablo sport suspension module although my understanding it mounts in the same location and is smaller than the oem module. My Challenger 1320 has the oem module and is tuned much differently than most of the others for drag racing. I'm told same as the Demon. The JL Audio install instructions for the Stealbox box claims it must be seated and bolted in its location for not only proper performance. I called JL Audio inquiring about fitment with the suspension module and they sent me a pictures of module relocation required for proper fitment per install instructions. I know many aftermarket subs like the Stealthbox are not hard mounted and just relying on a friction slip wedge fit so that didn't scare me away completely. Due to possible future warranty concerns I do not want to relocate the suspension module. In searching many pictures and comments of installs with the Stealth box in late Challengers with the module it seemed clear that the Stealth box wouldn't fully seat against the carpet and module in the fenderwell corner. Some said they had to trim the carpet floor to be able to open and close the floor lid without removing the Stealth box. I appreciate your opinion on the Stealth box performance compared to all others as this is the first verifiable comment to confirm that. I purchased the JL Audio powered sub ACS110LG-TW1 from Crutchfield so I still have time to exchange if after the install I'm disappointed with it. I could go with the Stealthbox in the future but with the information I've collected so far I'm hoping this ACS110LG-TW1 will simply give me the bass fill my system is lacking and since I don't have immediate plans to modify the rest of the system I didn't want to be overpowered with bass, if that's possible, lol!
Thanks again for your opinions and feedback.
 


Diboblo

5000 Posts Club
Founding Member
Wiki Contributor
Member ID
#1044
Messages
5,286
Reactions
28,043
Likes
352
City
Riverside
State
CA
Country
United States
Vehicle
2015 Dodge Charger Hellcat!
#67
Hello Diboblo,
Very interesting! Wishing I could have heard all iterations of your HK system. All I can go by is what the entire HK system sounded like in my first 2023 Challenger. Honestly I wasn't wanting for any changes in it. I couldn't find another Scat Pack last call Challenger with the different equipment I wanted and also with the HK stereo. If I could have I wouldn't be changing or adding a thing. That's the way it goes. Hoping the 10 speaker Alpine with this JL Audio ACS110LG-TW1 will give me comparable sound. If I may, would you care to comment on the patch connection to the 8 inch free air dual voice coil wiring in the rear deck. Some say leave the 8 inch sub disconnected. Others say leave it connected. Some say connect one voice call positive and negative to left channel input of JL amp and other voice coil positive and negative to right channel input of JL amp. How would you do it? Have you ever checked the voltage output available to the sub at high volume levels with the oem HK or Alpine system in the Charger or Challenger? One person mentioned with this specialized JL amp and very low ohm sub is designed to run on max 5.4 volts connected to high level signal. This was a specification I've never considered or thought about before.
Mine is an Alpine system. It's okay. Mostly I keep it low, so I can listen to the engine. LOL.

Any time you connect two speakers together, you are modifying the impedance. Unless you understand how that impacts the specific channel, on your amp, I would disconnect the OEM woofer. Replace one, with another.

Around volume level 26 your system is designed to defeat the dedicated bass output, on specific channels (3, 2, or 1). You can mitigate this roll off, through tuning. This is the stage I'm at, right now.
 


OP
Av8ing1

Av8ing1

500 Posts Club
Founding Member
Donating Member
Member ID
#1018
Messages
672
Reactions
2,620
Likes
132
City
San Marcos
State
CA
Country
United States
Vehicle
2019 Charger Hellcat
Thread Starter #68
AV8ing1,
I realize this is a almost four year old post but I am ready to do this same install with the JL Audio ACS110LG-TW1 in my 2023 Challenger Scat Pack with Alpine 10 speaker system. It's seemingly a very similar issue as the Charger HK set up with the 8 inch sub in rear deck that just doesn't do it for bass.
Question I have is the JL fits really tight in the Styrofoam liner. I noticed they all superceed to 05030175AF but this latest looks slightly different than your pictures. I still think it's doable but could use some advice on the amounts and locations you shaved, cut, deleted the foam in your install to obtain that below level clearance would be very much appreciated.
So sorry for the slow response. Its been awhile but as I recall I did not go all the way through the foam. Its paper thin though at the back. I figured if and when I sold the car I would just get a new foam insert for it. Never looked into the availability or cost of that though. IMG_0641.JPG
IMG_0640.JPG
 


Member ID
#20177
Messages
14
Reactions
12
Likes
2
City
Navarre
State
FL
Country
United States
Vehicle
2023 Challanger
#69
So sorry for the slow response. Its been awhile but as I recall I did not go all the way through the foam. Its paper thin though at the back. I figured if and when I sold the car I would just get a new foam insert for it. Never looked into the availability or cost of that though. View attachment 138916
View attachment 138917
Av8ing1,
Hello and thanks for responding and with pictures!
We have mine completed and installed. Where your foam is paper thin, mine was just completely cut out. Still plenty of material left to maintain the integrity of the foam liner and the JL sub fits down in there at about the same level all the way around. The passenger side has an area cut out like yours to access all of the adjustments and plug ins. The foam and sub can easily be removed and installed together as an assembly. The sub sounds great and provides the adequate bass the 10 speaker Alpine system in the Challenger was missing.
I'll post some pictures soon.
Thanks again!
 


OP
Av8ing1

Av8ing1

500 Posts Club
Founding Member
Donating Member
Member ID
#1018
Messages
672
Reactions
2,620
Likes
132
City
San Marcos
State
CA
Country
United States
Vehicle
2019 Charger Hellcat
Thread Starter #70
Awesome, glad it worked out well for you!
 


Member ID
#20177
Messages
14
Reactions
12
Likes
2
City
Navarre
State
FL
Country
United States
Vehicle
2023 Challanger
#71
Here are some pics for everyone to see. I really like how clean this looks and performs without any loss of trunk space.
 


Attachments

Member ID
#20177
Messages
14
Reactions
12
Likes
2
City
Navarre
State
FL
Country
United States
Vehicle
2023 Challanger
#72
I'd like to also add, I have a premium WeatherTech trunk floor liner from my previous Challenger. In the previous Challenger with the HK OEM trunk floor sub I noticed no reduction of bass into the cabin with the WT trunk floor liner installed. Same goes for this JL Audio sub in the trunk floor foam insert, no noticable loss of bass performance with the WT trunk floor liner installed.
 


Taxinator

Active Member
Member ID
#1447
Messages
267
Reactions
516
Likes
67
City
SANTA CLARITA
State
CA
Country
United States
Vehicle
2017 Charger SRT
#73
Here are some pics for everyone to see. I really like how clean this looks and performs without any loss of trunk space.
Looks nice and clean!
 


fubar569

1000 Posts Club
Founding Member
9 Second Best E/T
Member ID
#1073
Messages
1,190
Reactions
1,670
Likes
162
City
Bradford
State
PA
Country
United States
Vehicle
2018 Charger Hellcat
#74
I'm glad others keep finding ways to make it look just a little cleaner every time.

Version 1.0 here. Still going strong after 5 years.
 


Member ID
#20177
Messages
14
Reactions
12
Likes
2
City
Navarre
State
FL
Country
United States
Vehicle
2023 Challanger
#75
Again, I appreciate everyones help and feedback along the way and am really glad you guys came up with this mod and install years ago. It helped give me additional direction, motivation, and a great final product.
Yeah fubar569, I think JL Audio builds some really great products and yours is another example. I have a JL Audio XD-400/4 amp in my Ram thats got to be going on 13 plus years old. Been in and out of two vehicles driving a 10 inch behind the seat Kicker sub (wore out one subwoofer) and its still going strong!
 


Member ID
#21210
Messages
16
Reactions
9
Likes
2
City
Charlotte
State
NC
Country
United States
Vehicle
2011 Challenger SRT
#76
Lots of great info here. Thanks for posting the sub box pictures!
 


Member ID
#20177
Messages
14
Reactions
12
Likes
2
City
Navarre
State
FL
Country
United States
Vehicle
2023 Challanger
#77
Hello All,
It's been almost two months since my JL Audio ACS110LG-TW1 upgrade to the oem 10 speaker Alpine system in my Challenger. So far so good, but I have continued experimenting in search for a little more, and higher quality bass response.
It's been discussed and recommended by many, when upgrading the subwoofer system, to disconnect the oem 8 inch free air sub in the rear shelf package tray. This applies to both the Harman Kardon system in the Charger and the 10 speaker Alpine system in the Challenger.
I've spent weeks listening to many different types of music and from different sources into the head unit, with the free air sub connected and disconnected. In my opinion, the bass quality is much improved by disconnecting the oem free air sub and letting the new sub system take complete care of the bass fill from the rear. The bass sound and feel is cleaner and tighter especially if you start cranking the volume up.
Another old trick I discovered many years ago in another vehicle, and I guess the thought of it hadn't crossed my mind to try in a Challenger until recently.
It's simple, free, and makes a surprising difference in a vehicle with a high degree of sound proofing or sealing between the cabin and the trunk. Especially so if the bass source is coming from inside the trunk. Providing the rear seat back or backs are split or foldable, the trick is to simply unlatch and crack one or both seat backs just slightly open. They don't even have to be opened completely or laying down. This small thing yields a good additional improvement in bass feel and volume.
One other thing about this trick however, you will also hear a slightly louder engine exhaust note when driving as well. In a Hemi Challenger or Charger I don't consider that to be a negative. LOL!
 




Top