I bought an L322 2008 2 years ago

All sound system is in very poor condition and is crackling

Is there a store where you can buy the whole kit to replace speakers , twitters , woofers aka the whole kit ?

Thanks !

you can buy the speakers direct from JLR at not too bad a price - just double check which system you have as there are different connections depending what system you have! https://parts.jaguarlandroverclassic.com 2011 L322 Autobography - a lot of bells and some of the whistles...owner with no idea!

IMHO the originals are not that well made, if I were you I'd source some locally....  Pete
I now have permission from the boss to use Y.O.L.O. Enjoy life
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2014 L405 Autobiography SDV8 4.4 Loire Blue Ebony interior
2011 L322 Vogue SE 4.4 TDV8 Baltic Blue. Sold
2012 L322 Autobiography 5.0 Supercharged Ipanema Sand Sold
2002 L322 Vogue 4.4 V8 Epson Green (Fatty Offroader) Sold
-Click for Project Fatty off roader-

Look for Harman Kardon not Hartman Kardon.  Ron B. VK2OTC
2003 L322 V8 Auto
2007 Yamaha XJR1300
Previous: 1983, 1986 RRC; 1995, 1996 P38A; 1995 Disco1; 1984 V8 County 110; Series IIA

It isn't too expensive to make a big difference, so you're in luck.

First thing is that the Land Rover (Alpine system I think) DSP isn't the best at segregating the levels. The speakers perform way way way better by using your own DSP amp or by replacing the head unit. I have stock speakers and changed my head unit to an Android one. On the android head unit, I can customise the levels at different frequencies and the sound system is so much clearer and now really packs a punch. In short, you can isolate which sounds are handled by which speaker to get the best out of the system. There is a vast improvement.

Second thing is that the low range speakers in this car are what let it down really. Some good quality low ranges mean you can reduce the reliance on bass levels and therefore bring through more clarity from the rest of the system. GAS PS3M62 PRO SPL are exact retrofits for the mid range speakers in the doors and are only slightly more expensive than the Land Rover (Harmon Kardon) ones. They're reportedly very good. These speakers can be changed without the need to remove the door card (you remove the screws and level open the bottom of the door card). 2015 Range Rover Autobiography 4.4 SDV8

Another vote for changing out the factory speakers with aftermarket. FYI - The 2012 factory system uses 2 ohm speakers, not sure about the 2008, but be mindful of the impedance, especially if you are not going to add amplification.

I replaced mine with 2 way and 3-way component speakers from CDT Audio. I noticed a world of difference in clarity, especially on the low end after swapping mine out. I cant say I am a fan of the Logic 7 system at all, especially after swapping the speakers out, the music is so much clearer with Logic 7 disabled.