1997 - 2001 q45 speakers powered by own amp or single amp ?

[Qproject]

Hello all,

can anyone confirm if the 1997 - 2001 q45's came with a single amp to power all speakers or did each speaker have it's own amp ?

[maxnix]

All Bose systems I have seen have a single amp at each speaker with its frequency curve adapted to its paritcular installation.

[Qproject]

All Bose systems I have seen have a single amp at each speaker with its frequency curve adapted to its paritcular installation.

are you sure about this ? I'm looking at a parts book and it shows one SINGLE amp that powers all 6-8 speakers (this is only for 97 - 01 q45).

it shows this amp to be located under the package tray.

[BadQ45t]

All the bose speakers have power, isn't there some kind of sub or something behind the back seat? Either way there are a number of replacement head units that can be used with the Bose no sweat.

[Jesda]

are you sure about this ? I'm looking at a parts book and it shows one SINGLE amp that powers all 6-8 speakers (this is only for 97 - 01 q45).

it shows this amp to be located under the package tray.

Sounds like they went with the cheaper setup used in the G20. On the plus side, it makes replacing bad amps super easy.

[Qproject]

I'm not lookin to replace the stock headunit.

My stock rear speakers tend to distort when bass is pushed too hard, I'm not sure if it's blown or if it's normal. I just want to change the rears and that is why I need to know if it's self powered or if a single amp powers them all.

[QUOTE=BadQ45t]All the bose speakers have power, isn't there some kind of sub or something behind the back seat? Either way there are a number of replacement head units that can be used with the Bose no sweat.[/QUOTE
Modified by Qproject at 9:18 AM 10/13/2006

[Q_SHIP]

I think thats normal.

No highs, no lows, it must be Bose.

[Qproject]

the rear deck speakers tend to bottom out and distort alot faster than the rest of the speakers.

I don't really mind the sound sytem at all, I'd like to replace it if it is blow.

[Jesda]

The problem might not be the speakers, and may be the lack of decent amplification, causing distortion when you crank it.

You really should just throw away your entire sound system and start from scratch. Are the speaker cones damaged?

[Qproject]

it is the stock bose amp.

I doubt bose-infiniti would make it so easy to bottom out.

The problem might not be the speakers, and may be the lack of decent amplification, causing distortion when you crank it.

You really should just throw away your entire sound system and start from scratch. Are the speaker cones damaged?

[Q_SHIP]

it is the stock bose amp.

I doubt bose-infiniti would make it so easy to bottom out.

They do!! junk imo.

[Jesda]

it is the stock bose amp.

I doubt bose-infiniti would make it so easy to bottom out.

You have to describe "bottom out"

There's the type where the speaker cone is busted and cant handle the vibration and it sounds like farting, and then there's the type where the amp is too weak to drive the bass, causing it to cut out or cause distortion.

[Qproject]

so did anyone ever find out if the speakers are self powered with individual amps or if a single amp powers it all ?

the new JBL and Infinity Kappa speakers are 2 ohm and would be a direct plug n play.

there has to be someone who has changed out their y33 speakers here.

[BadQ45t]

I have to say for a stock unit I really think is excellent. The head unit is made by Clarion, BTW, and is pretty decent especially for stock. I find that turning the bass down slightly helps, but I can crank it up pretty darn high with no distortion.

Is it the same with CDs or radio...as for the "cheap way" give me a break, it would do everyone a favor by building the speakers with a cental power unit rather than powering eaach one. I have heard the units in a 92' and 94 and my 97' BLOWS AWAY by a hundred miles the units in either of the 1st gens. Keep you y33 bashing for another thread.

[Falkdesigns]

You tell 'em Jeff! I also think the stock sound system is excellent. No, it's not going to blast harder than the idiot in the Excalude next to me with 20 subs' in it, but it's plenty loud for me, could use just a little more bass, but I'd only want a single sub hidden behind the back seat and trunk carpet.

However, I will be replacing my HU with a double din DVD with Nav unit fairly shortly.

[Qproject]

yeah the sound system is nice. I like it.

however if only the rear deck speakers can handle a bit more bass.

so can anyone confirm that the speakers are NOT self amplified ?

[BadQ45t]

Excactly, I have an aftermarket setup in Z car that can thump pretty loud, but the Y33 setup is darn nice, better than anything they produced before that is for sure.

I'm with ya Kevin on the double DIN head unit with NAV. I bought a Magellan portable but I want that built in look. Which unit you got your eye on?

I thought that all Bose speakers had the built in speakers, you should call Joe at Scotsdale Infiniti, he'd probably know off the top of his head.

[Qproject]

thanks badQ45t

I'm almost sure that they are not self powered, I will varify with infiniti scotsdale.

I wonder if the JBL 2 ohm coaxials will make a huge difference.

Excactly, I have an aftermarket setup in Z car that can thump pretty loud, but the Y33 setup is darn nice, better than anything they produced before that is for sure.

I'm with ya Kevin on the double DIN head unit with NAV. I bought a Magellan portable but I want that built in look. Which unit you got your eye on?

I thought that all Bose speakers had the built in speakers, you should call Joe at Scotsdale Infiniti, he'd probably know off the top of his head.

[Falkdesigns]

Yeah, I'm fairly confident that I saw one big amp between the two 6x9's in the rear deck when we were doing the springs and struts.

Jeff, something from Kenwood, Eclipse or Pioneer. Gotta get one of them to do something for me, I have wheel sponsorship now so I gotta get this thing together to start showing next year in earnest, not just the random shows here and there.

[Qproject]

are you sure they are 6 x 9 ? infiniti parts book say it is 6.5" for the rear deck.

Yeah, I'm fairly confident that I saw one big amp between the two 6x9's in the rear deck when we were doing the springs and struts.

Jeff, something from Kenwood, Eclipse or Pioneer. Gotta get one of them to do something for me, I have wheel sponsorship now so I gotta get this thing together to start showing next year in earnest, not just the random shows here and there.

[kg03]

the rear decks have 6.5 in speakers in it. As far as the amps are concerned, I took an 05 pathy indash 6 disc mp3/cd changer and put it in my '99 Q45 and I learned in the process that there are at least two different amps. The main harness sends a low voltage signal to the rear speaker amplifiers and the front amplifiers are powered through the remote turn on from the rear amp. The only draw back is that I lost my steering wheel controls and occasionally when turning the car on I hear the rear amp before the front amp turns on.

<<------not to technical but still accurate
Modified by kg03 at 8:19 PM 10/24/2006

[Falkdesigns]

^^There you go. I wasn't sure what size the rear deck speakers were, I just assumed and we all know what happens when you assume

[Jesda]

the rear decks have 6.5 in speakers in it. As far as the amps are concerned, I took an 05 pathy indash 6 disc mp3/cd changer and put it in my '99 Q45 and I learned in the process that there are at least two different amps. The main harness sends a low voltage signal to the rear speaker amplifiers and the front amplifiers are powered through the remote turn on from the rear amp. The only draw back is that I lost my steering wheel controls and occasionally when turning the car on I hear the rear amp before the front amp turns on.

<<------not to technical but still accurate

Modified by kg03 at 8:19 PM 10/24/2006

Thats excellent information. Thank you!

[Skibane]

I have to say for a stock unit I really think is excellent.

Eh, it's merely "OK" - Barely good enough to keep you from upgrading it until something stops working!

They could have done us a big favor by including a graphic equalizer function, instead of just bass and treble adjustments. I realize that Bose thinks their built-in equalization is superior to any tweaks the user might make, but it isn't.

The emphasis on more speakers and amps (rather than on BETTER speakers and amps) is another oversight. Personally, I'll take two really clean, powerful channels with top-quality speakers and passive crossovers over 4 or 6 mediocre ones, any day of the week...

(Sorry for the thread hijack - )

[Qproject]

actually it is really good at moderate listening levels compared to other bose oem systems, but it starts to distort as you raise the volume; especially the rear deck speakers.

Eh, it's merely "OK" - Barely good enough to keep you from upgrading it until something stops working!

They could have done us a big favor by including a graphic equalizer function, instead of just bass and treble adjustments. I realize that Bose thinks their built-in equalization is superior to any tweaks the user might make, but it isn't.

The emphasis on more speakers and amps (rather than on BETTER speakers and amps) is another oversight. Personally, I'll take two really clean, powerful channels with top-quality speakers and passive crossovers over 4 or 6 mediocre ones, any day of the week...

(Sorry for the thread hijack - )

[97Q45t]

The four speakers on the doors are amplified by an amplifier mounted on the left side (driver side) underneath the rear deck.The two speakers on the rear deck: each has its own amplifying circuit attached to the speaker.

Size: Front door & rear deck: 6.5" Rear door: 5.25"

Amplifier and rear deck speakers (woofers) are pictured below.

[Qproject]

awesome thanks.

do u know if the rear deck speakers are mainly playing the low sub frequencies or are they playing full range ? and are the speakers de-tachable and replacable from the self amps ?

The four speakers on the doors are amplified by an amplifier mounted on the left side (driver side) underneath the rear deck.The two speakers on the rear deck: each has its own amplifying circuit attached to the speaker.

Size: Front door & rear deck: 6.5" Rear door: 5.25"

Amplifier and rear deck speakers (woofers) are pictured below.

[97Q45t]

do u know if the rear deck speakers are mainly playing the low sub frequencies or are they playing full range ? and are the speakers de-tachable and replacable from the self amps ?

The rear deck speakers only play the low frequency range. I'm not sure if they are replaceable or detachable because I didn't open them.

[Qproject]

ok thanks.

now this makes things more complicated, even if I can detach the speaker from the amp, I will have to find a 6.5" subwoofer that is 2 ohm and will fit inside the amp.

The rear deck speakers only play the low frequency range. I'm not sure if they are replaceable or detachable because I didn't open them.

[BadQ45t]

And just to set the record straight on the EQ issue, the head unit is made by Clarion, not Bose. The only Bose unit that has the separate EQ are the old 901s, all other Bose speakers are standard speakers, includng the car ones. I have set of the 901's, got them really cheap so you can Bose bash, they are not the greatest for music but they are amazing for home theater application, belive it or not.

As for my opinion on the unit, my statment was FOR A STOCK UNIT....I'd take my Kenwood Mask setup over the stock Bose/Clarion any day of the week. My dad has the LS430 Mark Levinson and I was expecting to be blown away by it when I finally got his car without him in it, frankly my Kenwood head unit/speakers with V12 Alpine Amp and Bazooka tube blew away his 04' LS that is a mighy expensive option on the LS, like 5k or something. Stock units are never comparable to what you can get on the aftermarket, but they are stock and fit in nicely.

Kevin, let me know which one you go with...DO you have a good place to go? I went to the Al & Eds on Lincoln for all my stuff before I left LA, the owner is Jessie, you should tell him your going to show your car and maybe he'll cut you a deal.