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Home > Modifications & Maintenance (L663) > Front + rear speaker upgrade D90 + sound deadening mod
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Defendit..



Member Since: 09 Aug 2020
Location: 's-Hertogenbosch
Posts: 421

Netherlands 
Front + rear speaker upgrade D90 + sound deadening mod
My 90 came with the basic 6 speaker configuration. So after my round trip Wales and Scotland, 3000mls I was not satisfied anymore with the sound.
First things first, sound deadening for the doors. Bought a package with 3 kind of materials for a four door car.
( Doors are big on a 90, everything is applied ) STP doorkit silver
Dismantle the door trim/cards ( Powerful video )
Wireloom complete disconnect from card and panel.



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Started with the heavy material full covered followed by the layer of dense innerfoam.



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After a lot of reseach I went for the 2ohm Blam 2way composet, first choice was the Live 165A , but after some more searching I found a higher spec set Blam Signature 165.80 for the same price.



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Did some more sound deadening inside door and panels.
The deadening is the most time consuming part of your front speaker upgrade.
Spend arround £ 85,- /€ 100,- on the deadening materials



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Bought some 6,5" speaker rings, ( Ford C max/S max ≥2006, EAN 4026724336818 / arround £ 17,-/€ 20,- )
applied inside and outside the ring also dampening material.
Connected the new woofer for now to the existing speaker cable.
( Tested the provided crossover, but it did not add any extra sound improvement for now, Future mod new cables direct to DSP )


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Glued in the new tweeters, connected with the existing tweeter cable with inline resistor . ( Future mod new cables)


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So with the stock amplifying the sound seriously improved, it's a full warm rich sound with smooth deep bass.
But first they need to run in ( 40hrs) to perform optimum.

​​​​​​Future upgrades will involve adding midrange speakers front, coaxial speakers rear (subwoofer) DSP 10ch and amplifier.

So my write-up for now, any questions let me know. No Mud flaps for my 90.!
-----------------------------------------
P300 S MY21 on air, adv.+ offroad pack, DRL+fog, Dinamica Suedecloth + Ebony headliner/Cross Beam- Many Mods..


Last edited by Defendit.. on 13th Aug 2022 9:36am. Edited 2 times in total
Post #956100 21st Jun 2022 11:08am
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Will.I.AM



Member Since: 16 May 2013
Location: Hertfordshire
Posts: 411

United Kingdom 2005 Defender 130 Td5 HCPU Kaikoura Stone
very interested in this - did the soundproofing make a big difference?
Post #960401 3rd Aug 2022 9:30am
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Defendit..



Member Since: 09 Aug 2020
Location: 's-Hertogenbosch
Posts: 421

Netherlands 
Yes, it did make all the difference !
Time consuming to apply, but fully worth . STP doorkit silver

Search for some nice 2ohm speakers ( Blam / Focal ). You'll be blown away No Mud flaps for my 90.!
-----------------------------------------
P300 S MY21 on air, adv.+ offroad pack, DRL+fog, Dinamica Suedecloth + Ebony headliner/Cross Beam- Many Mods..
Post #960416 3rd Aug 2022 12:23pm
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Defendit..



Member Since: 09 Aug 2020
Location: 's-Hertogenbosch
Posts: 421

Netherlands 
So after my sound deadening of the front doors and replacing the speakers and tweeters, now it is time for the rear speakers.
I did know the speaker size is the same as front 6'5", I choose an coaxial 2ohm speaker ( Blam Signature 165.80c )

Sidepanel removed, speaker out. Oh.. we have a problem. The speaker is mounted in a bracket which is direct mounted on/to the inside panel.


Click image to enlarge


What was Landrover thinking, this cabinet is leaking at 3 sides, impossible to build up any pressure / Bass .
My second problem with the new speakers was the depth, not sufficent.
But what is that Aluminium triangle there ?



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Behind that aluminium butyl deadening material is a great space, So with some measuring I figured out to take away some of the material.
( Very easy to drill, soft aluminium, easy to finish also)



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Next step was the sound deadening of the new discovered cabinet , at least there was more room to reach al the corners.
At the end of this cabinet, on top of the inner wheelwell I did put isolation and foam to close it up.



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I did not have the right speakerrings, so decided to use them from the old speakers, all the cheap **** removed and finished the inside smooth round ,
sound dampening applied inside and outside, I could connect the pins inside to the new speaker. So no cutting in the original wireloom.


Click image to enlarge


First testing, wow there is serieus Bass now, covered up some holes which where leaking air and some more finetuning beside the ring.

​​​​​​Sidepanel back, despite the new speakers are 5mm higher I could put it all back, very tight, as result no resolution from the speakergrill anymore.



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So, a lot of work and research, worth the effort.. that's up to you. For me it is
I will have to run them in first for my final conclusion on the sound. No Mud flaps for my 90.!
-----------------------------------------
P300 S MY21 on air, adv.+ offroad pack, DRL+fog, Dinamica Suedecloth + Ebony headliner/Cross Beam- Many Mods..


Last edited by Defendit.. on 6th May 2024 7:31am. Edited 1 time in total
Post #961508 13th Aug 2022 9:52am
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Lightwater



Member Since: 28 Jun 2020
Location: Sydney NB
Posts: 71

Australia 
I have stuck acoustic insulation in every conceivable space in my Freelander. Pulled the car apart many times. There maybe some ideas you can use on your Defenders.

https://www.freel2.com/forum/topic33026.html Visitor - Freelander owner
Post #962823 25th Aug 2022 7:48am
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widger



Member Since: 14 May 2023
Location: Adelaide
Posts: 3

Australia 
Mate this is great.

Did you have any luck in replacing the factory AMP? This is where I am stuck with the wiring inputs for the standard sound system, any help would be great..

Cheers,
Aaron
Post #992533 14th May 2023 2:04am
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starbai



Member Since: 20 Jun 2023
Location: Orlando, FL
Posts: 19

United States 
Any chance you could provide some more information on the sound deadening material you used? If there is one thing the Defender leaves to be desired is noise at highway speed. I'm not expecting a vault as its a brick on wheels, but its noticeably louder than my X5 for example. I like exhaust/engine noise. I dont like wind noise. lol
Post #1013680 2nd Nov 2023 6:06pm
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Defendit..



Member Since: 09 Aug 2020
Location: 's-Hertogenbosch
Posts: 421

Netherlands 
Just go to a good autoparts store or car hifi shop, they can advise and or sell you.

1st.layer heavy butyl selfadhesive
2.nd layer medium density foam selfadhesive

Doorpanel inside, butyl and foam.

It's not difficult, just time consuming.. No Mud flaps for my 90.!
-----------------------------------------
P300 S MY21 on air, adv.+ offroad pack, DRL+fog, Dinamica Suedecloth + Ebony headliner/Cross Beam- Many Mods..
Post #1013700 2nd Nov 2023 8:34pm
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grantmcarthur



Member Since: 01 Nov 2022
Location: Glasgow
Posts: 1

United Kingdom 
Hello! Im half way though this, have already taken the doors apaert and done all the soundproofing. How did you connect the new speakers to the LR plugs? I see you have cut the tweeters, what about the larger ones?
Post #1034326 9th May 2024 5:43pm
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Defendit..



Member Since: 09 Aug 2020
Location: 's-Hertogenbosch
Posts: 421

Netherlands 
I did buy new speaker rings in the front, just connect to the new speakers with some kind of 2 pin connector.
Watch polarity !! both are black.

But if you don't want to cut in the original loom, just remove/cut the old speaker from the integrated speaker ring and solder the pins to the new speaker. See picture on what I did with the rear speakers.


Click image to enlarge
 No Mud flaps for my 90.!
-----------------------------------------
P300 S MY21 on air, adv.+ offroad pack, DRL+fog, Dinamica Suedecloth + Ebony headliner/Cross Beam- Many Mods..
Post #1034390 10th May 2024 9:56am
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lightning



Member Since: 23 Apr 2009
Location: High Peak, Derbyshire
Posts: 2734

United Kingdom 
My 2022 Defender seems pretty quiet at highway speed, certainly no need to complain. However there's always room for improvement l guess. Would adding extra soundproofing to the doors make a noticeable difference on its own?
Post #1034402 10th May 2024 11:43am
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Defendit..



Member Since: 09 Aug 2020
Location: 's-Hertogenbosch
Posts: 421

Netherlands 
The sound deadening of the doors makes the car a little more silent.

The real benefits are:
if you close the doors it sounds very good, high quality now.
The door is now an isolated cabinet for the bass speakers, even with the standard speakers it sounds much better. No Mud flaps for my 90.!
-----------------------------------------
P300 S MY21 on air, adv.+ offroad pack, DRL+fog, Dinamica Suedecloth + Ebony headliner/Cross Beam- Many Mods..
Post #1034468 11th May 2024 2:23pm
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Lightwater



Member Since: 28 Jun 2020
Location: Sydney NB
Posts: 71

Australia 
In my above post #5 in this thread, on the Freelander (which I did research on the Defender acoustic insulation before I got going on the subject).

I would start with the doors. But if you read down my posts, doing the ceiling was a surprise to me. Never actually intended to do the ceiling.

I will add, that a bit of butyl on the roof, which I didn't do, will more than likely reduce rain noise. Probably I am being a bit over the top, but I am still surprised today how quite the the car is, very noticeable when opening a window in city traffic. Even other half has said how noisy it is outside & then quickly closes the window.

Stuff acoustic foam wherever you can to the limit.

I have probably spent about 3 weeks (120 hours) of stuffing acoustic material in the car. If I had to repeat the job it would be a lot easier second time round, so about 40 hours work I feel.

But stuff foam wherever you can filling spaces to maximum capacity. Visitor - Freelander owner
Post #1035509 23rd May 2024 6:41pm
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