Notices

Bose upgrade/replacement

Old 05-06-2013, 11:57 PM
  #1  
Registered
Thread Starter
 
Join Date: Sep 2010
Location: Estero, FL
Posts: 25
Likes: 0
Liked 0 Times in 0 Posts
FL Bose upgrade/replacement

Ok ive searched and searched till i couldnt anymore. i think i just dont know what key words to go with. When i upgraded my system with a d-din radio i wanted to keep the bose in order. I just now want to know if there is any way to control the amount of base going to the door speakers. Is it just something that got hooked up wrong. i pulled the system and ran a rca to speaker wire cord for the bose but im not hearing any change in base when i mess with the settings. I figured it would do it job but idk. Also with the wires running to the bose amp. IF(idk for sure) the bose amp is supplying the tweeters, if the cossover "relay" i guess is the right way to put it going to keep my tweets from overloading or do i need to just pull the system back out and hook up my old 10" subs form my old car??? i swear ive read every post i could but just cant figure it out. First time ive hooked up a system with Bose.
Jett2009 is offline  
Old 05-07-2013, 12:06 AM
  #2  
Yank My Wankel
iTrader: (4)
 
Carbon8's Avatar
 
Join Date: Nov 2009
Location: Buffalo, NY
Posts: 2,216
Likes: 0
Liked 1 Time in 1 Post
Firstly idk what you have done, but your thought process and fundamental knowledge on car audio is non existent. Cross overs are not relays they are an RL/RC filter blocking a range of frequencies, they do not control or limit amplitude. So if you blow them it's because your tuning was crap.

Metra kit is all you need, why are you hooking up RCA's? Those are only for aftermarket amps.

Bose amp utilize high output inputs via the factory wiring harness. As such all tuning is done on the head unit via the equalizer there is no way to tune the bose amp itself

Last edited by Carbon8; 05-07-2013 at 12:11 AM.
Carbon8 is offline  
Old 05-07-2013, 08:51 PM
  #3  
Registered
iTrader: (1)
 
Join Date: May 2011
Posts: 135
Likes: 0
Liked 0 Times in 0 Posts
Originally Posted by Carbon8 View Post
Metra kit is all you need, why are you hooking up RCA's? Those are only for aftermarket amps.
That is actually incorrect. With the bose system and and aftermarket head unit you have to use the RCA plugs rather than the speaker wire connections.
Stars25 is offline  
Old 05-07-2013, 09:45 PM
  #4  
Yank My Wankel
iTrader: (4)
 
Carbon8's Avatar
 
Join Date: Nov 2009
Location: Buffalo, NY
Posts: 2,216
Likes: 0
Liked 1 Time in 1 Post
Originally Posted by Stars25 View Post
That is actually incorrect. With the bose system and and aftermarket head unit you have to use the RCA plugs rather than the speaker wire connections.
Maybe next buy the proper Metra kit that has the bose amp interface. Also enlighten us as to how you connected RCA's up to the bose amp when LOC's will only convert a high level signal to low level. LOC's will not convert a low level to a high level.
Carbon8 is offline  
Old 05-08-2013, 01:14 AM
  #5  
Registered
Thread Starter
 
Join Date: Sep 2010
Location: Estero, FL
Posts: 25
Likes: 0
Liked 0 Times in 0 Posts
I know its not a relay, i just dont know what to call it. Ive never hooked up a full blow out the azz system. Ive only done small little things which was i posted this lol. Everything ive read has said to get RCA cables to run to the Bose amp. If there is a better system i didnt/dont know about it. I just would much rather have this done properly and i know the audio places around here dont know jack about it ( ive asked n got looked at stupid). and the best buy here blew up my friends radio and his wire harness melted so i dont trust them for anything. Like i said though, i just feel like something isnt right. my bose subs do nothing with the equ on the radio.
Jett2009 is offline  
Old 05-08-2013, 03:31 AM
  #6  
Yank My Wankel
iTrader: (4)
 
Carbon8's Avatar
 
Join Date: Nov 2009
Location: Buffalo, NY
Posts: 2,216
Likes: 0
Liked 1 Time in 1 Post
Still wondering where you all are getting at saying you can hook up RCA's to the Bose amp. Also the Bose system does not have factory subs. It has 9" free air door drivers that cover a completely different frequency range than subs do. Like I said buy the metra kit, read the instructions. It is one of the most complicated kits to install due to the HVAC and OBD interface. I would highly reccomend you take it to a shop.
Carbon8 is offline  
Old 05-10-2013, 01:27 AM
  #7  
Registered
 
Join Date: Aug 2011
Location: Palm beach gardens Florida
Posts: 12
Likes: 0
Liked 0 Times in 0 Posts
I have to agree if you don't know what your doing the metra kit is great but extremely complicated and if you don't know what your doing get someone who does to do it for you worth the money as it can be a headache
Molloy9874 is offline  
Old 05-10-2013, 08:47 AM
  #8  
User and Abuser
iTrader: (3)
 
firebirdude's Avatar
 
Join Date: Nov 2006
Location: Sunshine State
Posts: 3,099
Likes: 0
Liked 0 Times in 0 Posts
The factory Bose headunit outputs a very low-level signal to the Bose amp. Though it uses regular speaker wire connections, the amplitude is very low. Installing an aftermarket headunit with built-in amplifier can create some problems. Instead of sending a signal of 0.5-3W/channel to the Bose amp, you're sending 10-12W. As many have found out, this leads to extremely high volume levels with the aftermarket headunit volume set very low. Increasing the volume further leads to heavy distortion. The two solutions we have come up with is to use a resistor padding method for connection OR use the low-level RCA outputs from the aftermarket headunit. I'm not sure why you're getting so bent out of shape over this. This is nothing out of the ordinary or anything specific to the RX8. This is the case with many factory amplified systems, regardless of make/model. Metra makes several harnesses with RCA built right in. Here's one for a Toyota amplified system.

An RCA connection is nothing special. It's still just a positive and negative AC signal.


In regards to your comments about low RCA output voltage, I'll certainly agree that manufacturers have been moving the wrong direction on this. 2V has been the standard recently. Whereas 4V was common on even mid-range headunits ~8 years ago. Very odd. But as I said above, the factory Bose headunit outputs a very low-level signal to the Bose amp. Though 4+V RCA outputs would certainly be beneficial from a noise rejection standpoint, they're not absolutely vital to get you up and running in this case.

Last edited by firebirdude; 05-10-2013 at 09:01 AM.
firebirdude is offline  
Old 06-07-2013, 03:21 AM
  #9  
Braaaping to the future
 
k_9virus's Avatar
 
Join Date: Sep 2012
Location: Sunland, CA
Posts: 49
Likes: 0
Liked 0 Times in 0 Posts
Originally Posted by firebirdude View Post
The factory Bose headunit outputs a very low-level signal to the Bose amp. Though it uses regular speaker wire connections, the amplitude is very low. Installing an aftermarket headunit with built-in amplifier can create some problems. Instead of sending a signal of 0.5-3W/channel to the Bose amp, you're sending 10-12W. As many have found out, this leads to extremely high volume levels with the aftermarket headunit volume set very low. Increasing the volume further leads to heavy distortion. The two solutions we have come up with is to use a resistor padding method for connection OR use the low-level RCA outputs from the aftermarket headunit. I'm not sure why you're getting so bent out of shape over this. This is nothing out of the ordinary or anything specific to the RX8. This is the case with many factory amplified systems, regardless of make/model. Metra makes several harnesses with RCA built right in. Here's one for a Toyota amplified system.
I agree...after setting up my deh-4500bt with my BOSE system I've noticed that the door handles rattles even at low volume...Even if I fine tune the built-in equalizer and some tweaking in the headunit Im still not satisfied with the sound quality that came out of BOSE amp ... but overall it's clean output maybe im just gonna put some dynamat as solution to rattling issue
k_9virus is offline  
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Jst4fun
RX-8 Parts For Sale/Wanted
4
09-01-2016 04:53 PM
crimson809
RX-8's For Sale/Wanted
1
08-14-2016 10:03 PM
jasonrxeight
RX-8's For Sale/Wanted
2
09-30-2015 01:53 PM
Learners_Permit
Series I Interior, Audio, and Electronics
8
09-27-2015 07:38 PM
nivong
Europe For Sale/Wanted
0
09-02-2015 07:54 AM


Thread Tools
Search this Thread
Rate This Thread
Rate This Thread:

Quick Reply: Bose upgrade/replacement


Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.