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MG MGF Technical - Replacement of rear speakers on TF/MK2

I am toying with the idea of replacing the rear speakers on my TF with better quality items (and adding some sound deadening material inside the boxes).

I have of course trawled through the archives but most threads appear to deal with the fitting of rear speakers on MK1 cars and/or with upgrading of the standard 4"x6" speakers to bigger ones (6"x9" and the like).

I don't want to engage in any major surgery of the speaker boxes or T-bar. I only want to replace the crappy standard speakers with better ones that will use the same holes. The ones I have in mind are the Pioneer TS-H467 (see http://www.pioneer-eur.com/eur/product_detail.jsp?product_id=2591&taxonomy_id=25-132 )

The magnet of that speaker is 47 mm deap and the speaker seems to stick out a few (7-8 ??) milimeters at the front too.

So my question is: has anyone replaced the standard speakers with better 4"x6" ones, like these Pioneers, and is there any problem with the room available?

Per
Per

As I understand it the MKII T-bar does not have speakers mounted in it, instead they are mounted behind it into the speaker boxes, so if you did any cutting then it would be invisibe.

Take a small torch and put it flush with the grill (so all light escaping goes thru the grill) at night this should light up things enough for you to get a good idea of clearance in front.

Taking the T-bar off involves removing the three screws for the tonneo, then pulling the tbar off the six studs, there are two where the door overlaps with the t-bar (obviously you have to open the doors) and the other two are in the centre where the T-bar meets the cubbyhole.

You might break these studs in removal, they clip out and can be replaced very cheeply, ask for the seatbelt recall pack for the F, it has 6 studs and some other bits but it costs pence.

Be carefull refitting, a lot of people knock the studs out or don't make sure they are pushed home properly, this lead to annoying squeeks.

HTH
Will
Will Munns

Will,

Thanks for the input, I will follow your advice regarding the T-bar and get those extra clips from my dealer!

As regards the speakers, I am aware of how they are fitted (thanks to Dieter's great website - see http://www.mgfcar.de/index.htm and then "Lautsprecher MY2000" on his MGF know-how list). What I'm specifically after is people's experience of replacing the original 4"x6" speakers with better 4"x6" ones, which will always have bigger magnets than the OE ones.

Per
Per

Mike said he had a load of these speaker boxes he might be able to tell you about magnet clearance, for tweeter clearance the torch is your best bet (remember that the tweeter won't move, but will be coupled to the speaker, so very little clearance is needed, but some clearance (2mm?) is required.

Will
Will Munns

Assuming industry standard hole location, speaker swap should be straightforward.

The question regarding speaker depth is prudent - and the answer is 'I don't know' but there should be a fair amount of space rewards, assuming that the magnet diameter is not excessive.

Will's suggestion of measuring is probably the best approach - and then let us know what you find out Per! :o)
Rob Bell

Per

Recently fitted some Kenwood custom fit 6 x 4 70W speakers to my MG, These are usually for Golfs, They sound great. I cant remember the part number right now. But I am sure your local audio dealer will be able to let you know.

Peter
Peter

Peter,

Thanks for the info. Good to know that better speakers do fit. I'll check out the Kenwood range.

Cheers,

Per
Per

Per, you might want to check this post/thread out. I've fitted full Pioneer kit to a TF; sounds fantastic too. You'll find all you need here.

http://www.xpower-mg.com/forum/showthread.php?threadid=2362

or manually navigate to...

MGR X-Power & "ZED" Car Forums > MGR Technical & Insurance Section (not Model Specific) > ICE & Electrical Systems > TF Speaker help!

Cheers

Ian

Dieter, feel free to lift / edit (only) my posts and pictures from the above onto your site. It may help other F/TF owners.

Cheers

Ian

Ian Walker

Per

These were what I fitted KFC-4625C 70W?
but there were a higher rated set which were
KFC-PSR467C I think at 100W. Both in Kenwoods custon fit range.

regards

Peter
Peter

Ian, Peter,

Thanks a lot, guys! You have inspired me now and I think I will adopt a much more drastic approach than I first intended... ;-)

Per
Per

Ian, great work with the pix and info regarding door speaker replacement :o)

I've got MY2000 door cards to fit, along with their speakers. Just wondered, when you upgraded to Infiniti speakers (that I intend to do at some point in the future), did you reuse the existing wiring harness?

How are the tweeters wired to the main speakers - I'm guessing that they are in parallel?

Lots of jobs need doing on the car - so little time: shame about the inclement weather!
Rob Bell

Ian,

Having read your contributions to the other thread, I have one question: you say you tested the phasing of the speakers with a battery. How do you do that? What king of battery did you use?

I thought I would do that test as well, in case MG Rover has corrected the apparently faulty wiring you had on your car, on later cars like mine.

Thanks for your help!

Per
Per

>How do you do that?
Connect battery to the wireing at the head unit and ensure that all speakers move in the same direction (they should all move in or all out, a mix is wrong) this will not work with tweeters, for a start they should filter out the DC and secondly they shouldn't move very much, this doesn't matter though because phaze doesn't matter at their frequencys.

> What king of battery did you use?
The speakers should be able to cope with a 9 volt battery for a short time (a touch is good enough to tell) don't go for much longer or you might cause some dammage, smaller batterys will work but the effect will be less marked.

Will
Will Munns

Per "I will adopt a much more drastic approach than I first intended... ;-)" Thought you might!


Rob "did you reuse the existing wiring harness?"

Yep, seems just about OK The only think I intend to do in the summer is put dynomat on the doors.

"How are the tweeters wired to the main speakers - I'm guessing that they are in parallel?"

Yep on the pioneer's they are. The crossover is a capacitor in the wiring loom supplied with the speakers.

Per "... tested the phasing of the speakers with a battery. How do you do that? What king of battery did you use?"

It's an old trick and as described above but I used a 1.5v AA batery. Briefly touch the terminals/wiring and observe the movement of the cone either in or out; do it and you'll get the idea. No harm will come to the speaker.

Finally I used an audio test CD (phillips classic(!) CD with test frequency and phasing check tracks on it) to check it all out.
Ian Walker

Rob, to clearer, I used MGR wiring from head unit to main speakers and used the wires supplied (with in-line capacitor) to connect main and tweeter together in parallel.
Ian Walker

Thanks Ian :o)

Bet the combo sounds good! :o)
Rob Bell

Replaced my rear speakers the other day: on my car (TF 160) the wiring seemed to be ok as standard (no phasing problem), so it would appear that at least later cars have been wired correctly.

Per
Per

This thread was discussed between 07/02/2003 and 19/02/2003

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