JBL Upgrade w/o Amp

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📛 Founding Member
Sep 22, 2024
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42
Piedmont Triad, NC
Vehicles
2024 Toyota Land Cruiser; 2021 Jeep Gladiator Rubicon
I was not fully pleased with the JBL system in my LC LC. I've had worse, but I've had much better, such as in my 17 Golf R. Considering this LC is my first venture into what I consider luxury territory, I was expecting much more. Aside from the sound quality being muddy and lackluster, I was really surprised how much the doors rattled even at neutral bass. So, I decided to upgrade the speakers and add sound-deadening. I also was not really interested in adding amps and thankfully now I won't need to do so. Here is what I used:
  • JL Audio C2-350x 3.5" in the dash corners
  • Kenwood Excelon KFC-X3C 3.5" in the dash center (there wasn't enough depth for another C2 and I had the Kenwood on hand from a previous Jeep project)
  • Front doors
    • JL Audio C2-690tx 6"x9"
    • Metra 82-8246 mounting brackets (they work by drilling two new holes to match the OEM locations)
    • Stinger Roadkill RKFR69 FAST Rings (baffles)
    • I had tried a mid/woofer at first, but then realized a full signal is going to the door. Aside from how much sound was lost with that first attempt, one of the forum members had posted a document from Toyota Japan that showed a full signal to the doors. The JL Audio speakers I ultimately used, really help improve the overall sound quality when combined with the new dash speakers.
  • Back doors
    • JL Audio C2-650x 6.5"
    • Metra 82-8148 mounting brackets
    • Stinger Roadkill RKFR6 FAST Rings (baffles)
  • Metra 72-8109 speaker wiring adapters for all locations
  • Dynamat Xtreme
  • Dynamat Dynaliner 1/4"
I'm not an audio expert, but I selected the JL Audio speakers based on:
  • Previous experience
  • Warm sound and great sound quality
  • High sensitivity for working off the stock amp
I took my time over a few weekends and I'm really impressed with the results. It was my first foray in using sound deadening to this extent. I would estimate around up to 25% coverage with the Xtreme and around 30-40 with the Dynaliner. I did not want to remove the vapor liner (in the back doors) or go crazy inside the doors. Here are my key subjective results:
  • Significantly clearer sound played with a reduced need for volume. Prior to the upgrade, I listened in the range of 35 to 55. Now I can listen easily from 25 to 45.
  • The bass is impressive. I'm still not sure how much the subwoofer in the hatch is doing, but the new speakers in the front doors throw appreciable and solid bass.
  • Much quieter while cruising, such that I mainly hear wind noise by the A-pillars.
  • I use the surround function enabled now. It sounded harsh/irritating with the OEM speakers, but really fills the space with the improved speakers.
Some other random notes:
  • I listen to a wide range of music, including alternative, indie, rock, electronic, industrial, etc. and it all sounds great.
  • I bought Kicker 3.5" speakers for the hatch, but there is remarkably little depth for aftermarket speakers and reinstalled the OEM ones. I added sound deadening, while I was in there.
  • Taking off door panels in new vehicles always freaks me out the first time. The front and rear doors were fine. The hatch, however, made me feel as though I was going to break something in some areas.
  • I didn't bother doing anything with the subwoofer in the hatch. I'm not sure it's doing much, so it wasn't worth upgrading at the moment.
  • I did not touch the small tweeters in the pillar or upper back door.
  • The OEM speakers look weird (except for the back door ones that seem fairly normal). The front door and dash speakers have a lot of plastic framing in front of the cones. I suppose it keeps them rigid, but seems as though they would block the emission of sound.
All items were purchased from www.crutchfield.com
 
Last edited:
If interested, here are the resulting equalizer settings that worked for me.
 

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Just used those same JL Audio in the dash of my 1958. Big big improvement over the feather lite stock speakers. Glad you had luck with the JL Audio in the doors also, that was my thought on selection also as a next move.
 
I was not fully pleased with the JBL system in my LC LC. I've had worse, but I've had much better, such as in my 17 Golf R. Considering this LC is my first venture into what I consider luxury territory, I was expecting much more. Aside from the sound quality being muddy and lackluster, I was really surprised how much the doors rattled even at neutral bass. So, I decided to upgrade the speakers and add sound-deadening. I also was not really interested in adding amps and thankfully now I won't need to do so. Here is what I used:
  • JL Audio C2-350x 3.5" in the dash corners
  • Kenwood Excelon KFC-X3C 3.5" in the dash center (there wasn't enough depth for another C2 and I had the Kenwood on hand from a previous Jeep project)
  • Front doors
    • JL Audio C2-690tx 6"x9"
    • Metra 82-8246 mounting brackets (they work by drilling two new holes to match the OEM locations)
    • Stinger Roadkill RKFR69 FAST Rings (baffles)
    • I had tried a mid/woofer at first, but then realized a full signal is going to the door. Aside from how much sound was lost with that first attempt, one of the forum members had posted a document from Toyota Japan that showed a full signal to the doors. The JL Audio speakers I ultimately used, really help improve the overall sound quality when combined with the new dash speakers.
  • Back doors
    • JL Audio C2-650x 6.5"
    • Metra 82-8148 mounting brackets
    • Stinger Roadkill RKFR6 FAST Rings (baffles)
  • Metra 72-8109 speaker wiring adapters for all locations
  • Dynamat Xtreme
  • Dynamat Dynaliner 1/4"
I'm not an audio expert, but I selected the JL Audio speakers based on:
  • Previous experience
  • Warm sound and great sound quality
  • High sensitivity for working off the stock amp
I took my time over a few weekends and I'm really impressed with the results. It was my first foray in using sound deadening to this extent. I would estimate around up to 25% coverage with the Xtreme and around 30-40 with the Dynaliner. I did not want to remove the vapor liner (in the back doors) or go crazy inside the doors. Here are my key subjective results:
  • Significantly clearer sound played with a reduced need for volume. Prior to the upgrade, I listened in the range of 35 to 55. Now I can listen easily from 25 to 45.
  • The bass is impressive. I'm still not sure how much the subwoofer in the hatch is doing, but the new speakers in the front doors throw appreciable and solid bass.
  • Much quieter while cruising, such that I mainly hear wind noise by the A-pillars.
  • I use the surround function enabled now. It sounded harsh/irritating with the OEM speakers, but really fills the space with the improved speakers.
Some other random notes:
  • I listen to a wide range of music, including alternative, indie, rock, electronic, industrial, etc. and it all sounds great.
  • I bought Kicker 3.5" speakers for the hatch, but there is remarkably little depth for aftermarket speakers and reinstalled the OEM ones. I added sound deadening, while I was in there.
  • Taking off door panels in new vehicles always freaks me out the first time. The front and rear doors were fine. The hatch, however, made me feel as though I was going to break something in some areas.
  • I didn't bother doing anything with the subwoofer in the hatch. I'm not sure it's doing much, so it wasn't worth upgrading at the moment.
  • I did not touch the small tweeters in the pillar or upper back door.
  • The OEM speakers look weird (except for the back door ones that seem fairly normal). The front door and dash speakers have a lot of plastic framing in front of the cones. I suppose it keeps them rigid, but seems as though they would block the emission of sound.
All items were purchased from www.crutchfield.com
Did you run into any issue in the back door with the C2-650x and it fitting properly with the door panel back on? Crutchfield is telling me I may need to shave some off the back of the grill, but high I took to mean the door panel.
 
Did you run into any issue in the back door with the C2-650x and it fitting properly with the door panel back on? Crutchfield is telling me I may need to shave some off the back of the grill, but high I took to mean the door panel.
I know they had a warning regarding the height of the speaker, but it wasn’t an issue for me. It didn’t appear to have the tweeter in contact with the back of the grill (that is molded into the door panel).
 
I'm taking the leap and upgrading the JBL system on my FE. I like music, and getting better sound is a priority. The real reason is to add sound dampening to the doors and under my floor mat. Not that the vehicle is loud, but it'll definitely improve the interior quality, noise-wise. I'm trying to make it more like the Lexus without having to buy that god-awful looking vehicle.

I had printed out your list of JL speakers. Got talked into Focal 165AS3 (front) and Focal 165AS (back). I'm not touching the center speaker for now. Curious as to whether they have issues with the dash speaker. I've seen reports the Focal isn't a straight drop-in.

Might mess with the sub in the future. Adding an amp pretty much doubled the cost of the project, so I nixed that idea.

Getting it professionally done. Not that I couldn't do it, but it's peace of mind.
 
Can’t speak for that model of Focal’s, but my try with the Focal ACX100 would not fit the dash on the driver side. It was just too tall and sat about 3/8” proud and couldn’t be screwed in placed and have the dash grill installed on top of it.
 
I was not fully pleased with the JBL system in my LC LC. I've had worse, but I've had much better, such as in my 17 Golf R. Considering this LC is my first venture into what I consider luxury territory, I was expecting much more. Aside from the sound quality being muddy and lackluster, I was really surprised how much the doors rattled even at neutral bass. So, I decided to upgrade the speakers and add sound-deadening. I also was not really interested in adding amps and thankfully now I won't need to do so. Here is what I used:
  • JL Audio C2-350x 3.5" in the dash corners
  • Kenwood Excelon KFC-X3C 3.5" in the dash center (there wasn't enough depth for another C2 and I had the Kenwood on hand from a previous Jeep project)
  • Front doors
    • JL Audio C2-690tx 6"x9"
    • Metra 82-8246 mounting brackets (they work by drilling two new holes to match the OEM locations)
    • Stinger Roadkill RKFR69 FAST Rings (baffles)
    • I had tried a mid/woofer at first, but then realized a full signal is going to the door. Aside from how much sound was lost with that first attempt, one of the forum members had posted a document from Toyota Japan that showed a full signal to the doors. The JL Audio speakers I ultimately used, really help improve the overall sound quality when combined with the new dash speakers.
  • Back doors
    • JL Audio C2-650x 6.5"
    • Metra 82-8148 mounting brackets
    • Stinger Roadkill RKFR6 FAST Rings (baffles)
  • Metra 72-8109 speaker wiring adapters for all locations
  • Dynamat Xtreme
  • Dynamat Dynaliner 1/4"
I'm not an audio expert, but I selected the JL Audio speakers based on:
  • Previous experience
  • Warm sound and great sound quality
  • High sensitivity for working off the stock amp
I took my time over a few weekends and I'm really impressed with the results. It was my first foray in using sound deadening to this extent. I would estimate around up to 25% coverage with the Xtreme and around 30-40 with the Dynaliner. I did not want to remove the vapor liner (in the back doors) or go crazy inside the doors. Here are my key subjective results:
  • Significantly clearer sound played with a reduced need for volume. Prior to the upgrade, I listened in the range of 35 to 55. Now I can listen easily from 25 to 45.
  • The bass is impressive. I'm still not sure how much the subwoofer in the hatch is doing, but the new speakers in the front doors throw appreciable and solid bass.
  • Much quieter while cruising, such that I mainly hear wind noise by the A-pillars.
  • I use the surround function enabled now. It sounded harsh/irritating with the OEM speakers, but really fills the space with the improved speakers.
Some other random notes:
  • I listen to a wide range of music, including alternative, indie, rock, electronic, industrial, etc. and it all sounds great.
  • I bought Kicker 3.5" speakers for the hatch, but there is remarkably little depth for aftermarket speakers and reinstalled the OEM ones. I added sound deadening, while I was in there.
  • Taking off door panels in new vehicles always freaks me out the first time. The front and rear doors were fine. The hatch, however, made me feel as though I was going to break something in some areas.
  • I didn't bother doing anything with the subwoofer in the hatch. I'm not sure it's doing much, so it wasn't worth upgrading at the moment.
  • I did not touch the small tweeters in the pillar or upper back door.
  • The OEM speakers look weird (except for the back door ones that seem fairly normal). The front door and dash speakers have a lot of plastic framing in front of the cones. I suppose it keeps them rigid, but seems as though they would block the emission of sound.
All items were purchased from www.crutchfield.com
Thanks for taking the time to post that. Will serve as a great reference. (y)
 
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