Hiline Nav - Sound quality improvements. I've found something interesting! - Page 4

DMGRS · 2nd December 2013, 10:57

Glad this has helped someone - I'm still loving mine! Brilliant upgrade, and I've had zero issues with it since fitted.

Quote:

Originally Posted by Avulon

Hi DMGRS, Can you tell me what is the amplifier chip being used in the standard radio please?

With that info I can do a search to see if there's a possible replacement.

Here you go:

It's a TDA7375.

Chas2008 · 28th December 2013, 18:59

Quote:

Originally Posted by Avulon

Hi DMGRS, Can you tell me what is the amplifier chip being used in the standard radio please?

With that info I can do a search to see if there's a possible replacement.

Hi Avulon, Did you have any luck sourcing a replacement amplifier chip for the TDA7375 ?

Charles

pollymol · 2nd January 2014, 12:42

Hi
Ive bought Becker BM24 module after reading posts as upgrade on my Highline HK system.
Any advice on fitting this - and what do I have to be careful about.
Thanks
David

Avulon · 2nd January 2014, 12:48

Quote:

Originally Posted by Chas2008

Hi Avulon, Did you have any luck sourcing a replacement amplifier chip for the TDA7375 ?

Charles

No, the problem is finding a suitable replacement, with better specs and the same pin layout, it just doesn't exist: the pin layout on on all these amplifier ICs is different. I think it would be easier to remove the power amp, take the line signal from the pre-amp to an external aftermarket power amp. But that is a lot of hassle, I actually hit quite lucky on Ebay and picked up a 1999 BM24 for not too much money. The sound is better, not sure that I'd say light years better, but a bit less woolly / muddy sounding. I may get around to the speakers as well, only time will tell.

Avulon · 2nd January 2014, 12:52

Quote:

Originally Posted by pollymol

Hi
Ive bought Becker BM24 module after reading posts as upgrade on my Highline HK system.
Any advice on fitting this - and what do I have to be careful about.
Thanks
David

Ignition off and boot open, just slide the radio unit out of the bracket, swear for a few minutes trying to get the plug off (lift the sliding part ALL the way) and then plug in the new unit, wonder why the new unit doesn't just drop in to the bracket, (it's a tight fit on both units) and persuade it into position. Put everything back (covers & trim) and you should be good to go.

pollymol · 2nd January 2014, 15:24

Hi Avulon
Thanks for advice.
David

Avulon · 3rd January 2014, 12:40

wrong thread

HarryM1BYT · 3rd January 2014, 13:03

My experience of going from hi-line nav system with HK, to DD then DD with HK system working, is this...

As original and all working, the audio was absolutely pathetic - very disappointing indeed for what it cost.

Moving to just the bare DD, no HK amp, but the DD feeding all of the speakers except sub, made a dramatic difference. Once I got the DD working via the HK amp and sub, it became a very good system indeed.

My conclusion therefore is that the original radio / amp was the weak part of the equation.

pollymol · 8th January 2014, 12:33

Hi
Im in process of removing hi line tuner in boot and fitting bm24.
do I need to unscrew bolts of support bracket from boot and remove bracket and tuner complete or should tuner just slide up out of brackets.
Thanks
David

Neil Coupland · 8th January 2014, 12:45

No need to remove the bracket, the tuner will slide out, but it can be a bit tight.

3rd January 2014, 12:40	#37
Avulon This is my second home 1.8t Tourer Join Date: Oct 2011 Location: Tanelorn Posts: 4,830 Thanks: 956 Thanked 1,148 Times in 916 Posts	wrong thread __________________ Need a T4 ?: T4 Owners Map thanks to Stevestrat ( use at your own risk) Where?: https://en.wikipedia.org/wiki/Tanelorn Mods/Retrofits: PCV vortex 'filter'; bluetooth; inline thermostat; reversing sensors; plenum spyhole ; headlamp washers ; Diy mp3 player replacing CD multichanger; FBH with remote; Headlamp washers; black/chrome front grille, rear blind; Xenon projectors To do: puddle lights; 2 Din cd/nav to fit; boot release button Last edited by Avulon; 3rd January 2014 at 15:41.. Reason: oops wrong thread

3rd January 2014, 13:03	#38
HarryM1BYT This is my second home 75 Contemporary SE Mk II 2004 Man. Sal. CDTi 135ps, FBH on red diesel, WinCE6 DD Join Date: May 2010 Location: Leeds Posts: 17,274 Thanks: 2,160 Thanked 2,061 Times in 1,586 Posts	My experience of going from hi-line nav system with HK, to DD then DD with HK system working, is this... As original and all working, the audio was absolutely pathetic - very disappointing indeed for what it cost. Moving to just the bare DD, no HK amp, but the DD feeding all of the speakers except sub, made a dramatic difference. Once I got the DD working via the HK amp and sub, it became a very good system indeed. My conclusion therefore is that the original radio / amp was the weak part of the equation. __________________ Harry How To's and items I offer for free, or just to cover the cost of my expenses... http://www.the75andztclub.co.uk/foru...40#post1764540 Fix a poor handbrake; DIY ABS diagnostic unit; Loan of the spanner needed to change the CDT belts; free OBD diagnostics +MAF; Correct Bosch MAF cheap; DVB-T install in an ex-hi-line system; DD install with a HK amp; FBH servicing. I've taken a vow of poverty. To annoy me, send money.

2nd January 2014, 12:42	#33
pollymol Avid contributor Rover 75 Join Date: Dec 2011 Location: Folkestone Posts: 124 Thanks: 2 Thanked 0 Times in 0 Posts	Hi Ive bought Becker BM24 module after reading posts as upgrade on my Highline HK system. Any advice on fitting this - and what do I have to be careful about. Thanks David

2nd January 2014, 15:24	#36
pollymol Avid contributor Rover 75 Join Date: Dec 2011 Location: Folkestone Posts: 124 Thanks: 2 Thanked 0 Times in 0 Posts	Hi Avulon Thanks for advice. David

8th January 2014, 12:33	#39
pollymol Avid contributor Rover 75 Join Date: Dec 2011 Location: Folkestone Posts: 124 Thanks: 2 Thanked 0 Times in 0 Posts	Hi Im in process of removing hi line tuner in boot and fitting bm24. do I need to unscrew bolts of support bracket from boot and remove bracket and tuner complete or should tuner just slide up out of brackets. Thanks David

8th January 2014, 12:45	#40
Neil Coupland Gets stuck in Range Rover Sport, MG TF 160 Aubergine Join Date: Nov 2006 Location: Nottingham Posts: 693 Thanks: 21 Thanked 20 Times in 17 Posts	No need to remove the bracket, the tuner will slide out, but it can be a bit tight.