Post by
Rogue One »
https://forums.nicoclub.com/rogue-one-u185971.html
Thu May 28, 2020 5:55 am
There's so much to cover that I'll just give you the Cliff notes for now. Technically due to the inferiority of the HU, amp, and speakers, you would want to replace all of them, but it's not necessary (as long as you're willing to accept some limitations).
1) BOSE designed the way the sound system sounds and works, BUT few if any of the components are made by BOSE (that's been covered in this and other forums here on NICO).
2) Upgrading the entire BOSE system rather than replacing a part is a sales gimmick that shops will use in an attempt to sell more product. I'd avoid that shop and find a reputable place to have the work done.
3) You can improve the overall sound by simply replacing the speakers. This will cost much less than replacing the HU and will improve the output from the HU. You'll find that most everyone recommends that if you're on a budget you replace the speakers first (not to mention it's an easier DIY than replacing the HU).
NOTE: Most BOSE speakers are one or two ohm. Aftermarket speakers are generally four ohm.