Adding powered sub to C4 Bose
Thread Starter
Le Mans Master
Joined: Dec 2003
Posts: 5,867
Likes: 17
From: Phoenix Arizona
Adding powered sub to C4 Bose
How do I tie into factory Blows unit in rear storage cubby to grab R & L outputs and power lead for a powered subwoofer? (1996 Vette)
Thanks!
Thanks!
Safety Car
Joined: Jan 2006
Posts: 3,566
Likes: 4
From: Mt Laurel NJ
St. Jude Donor '06-'07
Good luck
BTW, you may have to/want to run a seperate power wire from the battery for the powered sub, depending on how much power it needs.
Last edited by RandyJ75; Jan 2, 2008 at 01:50 PM.
Le Mans Master
Joined: Oct 2000
Posts: 8,897
Likes: 1,357
From: Santa Ana CA
On my '91 I got rid of the Bose amps and replaced them with a pair of nice JBLs mounted in the right rear hatch. This requires an interface unit between the existing stock Bose head unit and the JBL amps to get line level outputs. The interface that I obtained even has an adjustable 35 Hz boost for the rear speakers to compensate for the Bose equalization. (A sub amp can also be tied in here.)
I added some outboard tweeters to the existing Bose units (front and rear) as well as a 25-watt, 1 ohm resistor in series with the woofers. The existing woofers are only 1 ohm, and that is a very difficult load for any amp to push that couped up in a sealed air space to any loud level for any length of time. The 1 ohm resistors took care of this problem.
Using the system in this manner, we have not encountered the need to run a separate subwoofer. It's truly amazing how much bass the rear Bose speakers will push when properly amplified and equalized..., lots more thump than we can stand when in the car.
I added some outboard tweeters to the existing Bose units (front and rear) as well as a 25-watt, 1 ohm resistor in series with the woofers. The existing woofers are only 1 ohm, and that is a very difficult load for any amp to push that couped up in a sealed air space to any loud level for any length of time. The 1 ohm resistors took care of this problem.
Using the system in this manner, we have not encountered the need to run a separate subwoofer. It's truly amazing how much bass the rear Bose speakers will push when properly amplified and equalized..., lots more thump than we can stand when in the car.
