Let me see if i get the setup right to add a subwoofer and amp to the RL...by all means correct me if im wrong

Since no RCA for the AMP - you would have to have something like a AudioControl LC6i to jump from the existing speakers and "normalize" the signal. Then go RCA cables from the LC6i, to the amp. Then it goes normal from there. Is this correct? Is there anything else you guys would recommend besides the LC6i?

Thanks!

 

so my setup would consist of:

GROM HON1U3, AudioControl LC6i, Alpine class D AMP, Type E 10" subwoofer.

 

If you're just trying to add a sub, you can use a line out converter just before the bose amp.

Here's the thread you need...

https://acurazine.com/forums/audio-b...signal-920907/

 

awesome! thanks for the link. That pretty much answers it. It is very similar to my other Bose system in my Aurora and Maxima.

Now for another question. Is there a noticable sound difference between just using a line converter and using a DSP between the BOSE AMP and aftermarket?

 

meh, if you're just adding a sub, no. If you really get in to SQ and swap out all the speakers, then yeah

 

I used the JBL ms-8 processor with my OEM speakers and aftermarket subwoofer. I was truly impressed with what the MS-8 was able to accomplish with factory speakers. Amazing what fine tuning and some time alignment can do for listening pleasure. Not to mention the 31 band Eq. I have been debating on selling it or hold onto it for my next daily driver.

 

NathanJax - I do want to eventually replace the speakers in the car. First is the subwoofer tho. So it may be better to just get quality equipment first and go from there.

Carbon Legend - that looks pretty awesome! So you had all your speakers and subwoofer feed off this and not the factory amp?

 

yea. it was a great system just for some beats. but i took it all out for a whole new setup and went a little over board lol

 

Is it possible to bypass bose amp entirely? It's speculated that bose amp is of low quality and degrades the signal by quite a bit.

 

Do you even thread read?

 

Yes, sorry I'm a noob in car audio! As per this thread stefce is saying that if you bypass oem amp you lose volume/bt control.... isn't a case? https://acurazine.com/forums/audio-b.../#post15407645

 

thats what he said... I dont know personally.

 

thomask - From what i understand, you may replace the current speakers while keeping the stock AMP but since the ohms are off, you lose volume with no damage to either the AMP or speaker.

These premium sound systems are a bit much to jump into if you never dealt with any type of sound system (like older cars, with no 'Bose' etc).

 

Apparently, the speakers are not a problem. They're good quality speakers. What ruins the sound is the amp and hence I would like to replace or bypass amp if possible. Also I would think sound deadening of doors may help quite a bit as they haven't been soundproofed at all.

 

I would add an amp with DSP (JBL-MS8 or similar) after the Bose amp before I would try to go around it unless you don't care about Bluetooth or ANC. If that's the case, then just take the head unit signals going into the Bose amp, and plug them into your own.

Sound deadening will always help. Use mass loaded vinyl barriers to block sound and constrained layer dampeners to reduce vibrations.

 

Would adding an amp after the Bose amp help with SQ at all? I would think that degraded sound from the Bose amp can't be fixed by adding another one...I don't care about ANC/BT at all but would miss volume controls and that's a deal breaker for me at the moment .

 

Well, I said amp with DSP for a reason. A stand alone amp will not correct any degraded sound quality. A DSP however, can recover lost signal integrity, but a stand alone DSP won't have the power you need for a car system. Hence, you need a powered DSP to fix the signal after the amp.

I am not sure where stefce got the idea that you will lose volume control if you remove the Bose amp. I won't refute his claim, but it seems unlikely to me.

 

any recommendation on speaker replacements? I see that we have component speakers, and I was curious on if any 2 way component speaker system would work in its place. Obviously will be changing the amp, but i mean depth wise, and sound wise - what would be some solid speakers.

I will already have the bass, so im looking for clarity and precision without killing my ears. I have heard some speakers that are to "high" for me and it just murders my eardrums.

 

You need to make 1" MDF adapters for 6.5" in the doors (All 4). Depends on your budget to figure out what brand you like.

 

According to the picutre in this thread https://acurazine.com/forums/audio-b...cessor-914037/ HFC and Onstar Control unit goes through OEM amp so if Onstar Control Unit controls volume control it seems like it you indeed lose it.

 

Doesn't it depend on how the signal is degraded by the amp in some way? I mean, if you have crap source signal from the start there is only so much DSP can recover. Lost information is lost. You can't recover that.

 

Not necessarily. Unless a tone is completely eliminated, you can go back and forth. I am not buying that the Bose amp degrades the head unit signal significantly. It may not be tuned the best for the speakers or the RL cabin, but it isn't going to ruin your signal. Bose is full of very cable audio engineers.

Also, there is no way that Onstar controls the stereo volume.

 

The only signal loss with bose is the low frequency, just like their slogan. All highs and no lows, it must be Bose.