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upgrading highs on Bose stereo - Click HERE for Original Thread
2007Murano
Hi,

Is there a way i can just upgrade the highs on my Bose stereo?

I'm quite happy with the bottom end, but it lacks crisp highs - wondering if i could just upgrade the tweeters in the dash?

thanks
mgthe3
quote:
Originally posted by zelmosan
30 Minute, $ 3.00, Bose Tweeter Fix.....

The Bose factory 1" tweeters are assembled with a factory 4.7 uf high pass capacitor. This capacitor value is too low making a higher cutoff frequency that just sucks!!

I added, in parallel, a 47 uf capacitor ( Radio Shack 272-1027 ) to each tweeter. Remove the grilles by pulling up to release the snap locks and then pull the assembly towards the front seats to remove the vent nipple that extends below the top deck into air distribution tube. Remove two mounting screws on the tweeter bracket and unplug the connector. The Radio Shack capacitor is electrolytic and the unmarked lead needs to be soldered to white wire at the tweeter terminal. The marked lead is soldered to the remaining existing capacitor terminal. ( If you cannot handle a soldering pencil, find a friend that can ). There is no need to remove the factory capacitor. Capacitors in parallel are additive capacitance. Be sure not to short any electrical leads of the existing capacitor or the new capacitor. Replace the tweeter assembly and grilles.

The added capacitance lowers the high pass to about 1,500 Hz. It is a remarkable improvement in the factory 'mud' sound. When I can afford to I will probably replace the tweeters as other loyal Murano owners have done.

Rock on!!!!!!!!!!!!!!!

Pops
That's interesting. Thanks mgthe3!
2007Murano
Excellent!!! Thanks very much! when i take the tweeters out i will check the ohms - if they are simply 4ohm then i think i may just replace them.
2007Murano
Finished upgrading the stock Bose tweeters by addinig a 47uf capacitor. Wow - it really does make a noticable difference - well worth it for the cost.

:)
mgthe3
THAT is why this forum is here.
:D
2007Murano
Agreed!! I love this forum and i LOVE my Murano!!!

Thank you for your help!!

:2:
Bambus
quote:
Originally posted by mgthe3



Hey,
I just did this upgrade - it works like a charm. It took me longer to carefuly take the speaker covers off than to solder on the caps. This is an awesome cheap fix to any MO(with Bose). Thanx for the R&D and letting us know about it. Now Im one step closer to my perfect MO.

15 min of my labour -> $0
2 47uF/50V Capacitors -> $2
Being a member of this Murano
Forum & having nice crisp highs
on the Bose system -> PRICELESS
2007Murano
I wonder if it matter what the voltage is on the 47uf caps? Mine i think are 35V.
Eric L.
This is a great thread. I'm making it a sticky.
Bambus
quote:
Originally posted by 2007Murano
I wonder if it matter what the voltage is on the 47uf caps? Mine i think are 35V.


When I did mine, the store had only 47uf-50V caps.
There is a 4.7-50V cap on the tweeter.
2007Murano
I'm thinking it doesn't matter since mine works great.

I still can't believe the difference and why Bose/Nissan would let the system leave the factory like that with such a simple change maked such a big difference.

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