Replacing std speakers, not bose, to better ones?

MikkiJayne · #1 6th April 2020, 01:37 PM

It looks like an ordinary speaker screwed in to a bespoke bracket from pictures on Google images. Did you remove the speaker from the door card or just look at the back of it?

It also looks like Audison do a direct drop-in replacement: https://srotas24.co.uk/car-parts/aud...872993648.html

NightOwl · #2 6th April 2020, 06:03 PM

Thanks for the link and comment, MikkiJayne.

I removed the speaker completely from the door, and the bracket and the speaker housing is made out of one piece of plastic. Although, looking closer at the BOSE speakers, it looks like they are screwed into at separate bracket like those in the Audison link.

In the afternoon I received a message from Prestige Motor, that the BOSE speaker will fit directly and will work. He confirmed that they have done it for a customer. Obviously it won't be like a complete BOSE system without the proper amplifier and also the BOSE system has to two speakers in the parcel shelf (and a center treble in the front) that the std sound system doesn't have.

I feel tempted to go on with this...

dangerdred · #3 14th April 2020, 04:30 PM

Not meaning to send the thread OT but does anyone know why the standard door speakers have two input connections and the sound is the same from each?

NightOwl · #4 15th April 2020, 07:11 PM

Quote:

Originally Posted by dangerdred

Not meaning to send the thread OT but does anyone know why the standard door speakers have two input connections and the sound is the same from each?

Good question! My initial thought was that Audi used the same speaker in more models and may have two together and use the second connection to connect the other speaker. It would lower the impedance and the amp wouldn't be too happy with that though. Also, doing a search on 4E0035411M, gives only A8 D3 fitment, so maybe it's not used in any other models? On the other hand, a lot of speaker elements do have dual terminals for plus and minus.

Talking about speakers, the BOSE set is on the way and have expected arrival on Friday.

MikkiJayne · #5 15th April 2020, 07:33 PM

Is one connection the input from the amp and the other the output to the tweeter?

NightOwl · #6 16th April 2020, 06:56 AM

Not for the front doors at least.

NightOwl · #7 18th April 2020, 08:53 PM

Quick update.

The BOSE speakers arrived on friday, and I've done all the doors so far. The swap was as easy as it could be, rip off the door panel, unhook and unscrew the speaker, then screw back on the new speaker, hook it up and attach the door panel. Done in 15 minutes on each door.

The tweeters on top of the dash gave me a little bit more work, as the connection plug doesn't fit. Also, I see on the std tweeter there is a 4,7 µF to take away the bass, but there is non on the BOSE speaker. Making med think it could be a crossover hidden somewhere where the cables to the door woofer and the tweeter separates for the BOSE speakers? Well, if so, sending full range to the woofer doesn't matter much but I'm not feeling good about doing the same with the tweeter. There isn't much power in the std amp, but a tweeter is not built to play bass. Another surprise is that using a 4,7 µF together with a 4 ohm tweeter means it will start rolling off at 8k Hz. That is very high roll-off in my opinion, so I think I will use a 10 µF with the BOSE tweeter and see how it sounds. Luckily I have some good quality caps laying around from earlier speaker jobs.

And, haven't done anything with the subwoofer yet. Need to see some videos on how to gain access first.