where are the subs?

Parrotguy · 03-16-2010, 03:39 PM

I haven't gotten my car yet, but is it possible the foam helps the sound deadening? There have been posts saying that the roaster is more quiet than the coupe because in the roadster the trunk is enclosed. I don't know if the foam you are talking about is in a place where it might help sound deadening. Just a thought.

John Bradley · 03-16-2010, 07:44 PM

I think it's just the design of roadster
since there is no open back it hides the noise
better.. Mine is alot quieter than the coupes
I have been in

Ishtim · 03-18-2010, 02:54 PM

Thanksn for posting the pic... My wife had just asked me "where is the microphone?" last night...

Rasengan · 03-18-2010, 05:06 PM

i did some more investigating yesterday and the "subs" are in the trunk right behind the liner facing the area that houses the tonneau cover...i'm not sure how good this placement is since it has to pass through that entire section and i know for a fact these subs aren't strong enough to do that

just thinking of options to upgrade the sound system of the Roadster

Parrotguy · 03-19-2010, 03:38 PM

What do the sound waves have to pass through before entering the cabin?

If the seats are all the way back, are they up against the speakers?

Rasengan · 03-19-2010, 04:40 PM

it has to pass through the space where the top folds into...i think it might have sounded better had it been placed right behind the seats being that those woofers are 6.5" (i believe), really thin, not sealed, and severely underpowered...with the top down, i'm sure it's impossible to hear

Parrotguy · 03-20-2010, 02:48 PM

Are their adequate air spaces in the plastic panel behind the seat to let the sound waves through?
Would it help to add more air holes?

Is there room to install a bigger speaker? Which brings up the next question, I assume we get an amp - do they tell us what its watt output is?

John Bradley · 03-20-2010, 08:57 PM

Quote:

Originally Posted by Rasengan

it has to pass through the space where the top folds into...i think it might have sounded better had it been placed right behind the seats being that those woofers are 6.5" (i believe), really thin, not sealed, and severely underpowered...with the top down, i'm sure it's impossible to hear

I have yet to have a problem hearing mine with the top down. Drove all day with top down today even at 70 mph mine sounds great.. XM sounds the best though, My Ipod does NOT sound good at all though.

ZeeYouLater · 04-09-2010, 12:37 PM

Quote:

Originally Posted by Rasengan

i did some more investigating yesterday and the "subs" are in the trunk right behind the liner facing the area that houses the tonneau cover...i'm not sure how good this placement is since it has to pass through that entire section and i know for a fact these subs aren't strong enough to do that

just thinking of options to upgrade the sound system of the Roadster

Yes the speakers are no subs at all.."subs" = normal poor midrange speakers..

you can check it with your fader 100% in rear position.

the sound is diffuse without any high fidelity

may there is a better update speaker or its a problem of the compressed air channel from the rear (seats infront and the mounting location behind)

Rasengan · 04-09-2010, 01:39 PM

Quote:

Originally Posted by John Bradley

I have yet to have a problem hearing mine with the top down. Drove all day with top down today even at 70 mph mine sounds great.. XM sounds the best though, My Ipod does NOT sound good at all though.

really? that's strange, my iPod sounds just as good as XM...what bitrate are you getting your MP3s at? i only get 192kbps and higher and they sound great in the car...not quite CD quality but very very close

Parrotguy · 04-10-2010, 03:13 PM

I'm still waiting for delivery of my car so I can't be of much help, but I think the first step is to figure out how much power the amp Nissan put in there is putting out. If the amp is large enough there may be a simple fix by swapping out the speakers for ones which can handle high output without distortion.

If the amp is weak then its a bigger problem. That would mean replacing the amp and the speakers.

I am driving an '07 Z4 (7 days left on the lease) which also has two subs, mounted directly behind the seats. They are also not large, I think they are probably 6.5", but they will blow you out of the car at half volume with zero distortion. The amp is 440 watts, so if the amp is big enough and the speakers are built to take high output, you can get great bass even with small speakers.

Please let us know anything you find out. Thanks.

Rasengan · 04-10-2010, 09:14 PM

well ZeeYouLater is definitely right, i faded the sound to the rears and heard practically nothing in terms of bass...you would assume that you would have the same amount of bass fading all front or all rear because the subs should be a separate channel but nope, nothing if you fade all to the back...i believe most, if not all the bass you hear is actually coming from your front speakers

simply switching out the speakers isn't an option, not with the bose...you also cannot just add an amp as our experts here on the boards (bigaudiofan) have determined that bose systems automatically cut out certain frequencies at high volumes to limit distortion and prevent you from blowing out your speakers...what has been suggested is getting the MTX ReQ5 to take the signal and "clean" the digital processing the bose is doing if you want to install an aftermarket amp

i didn't know it was going to be such a headache getting better sounding system with the "premium" audio but i really wanted the NAV system and i really don't want to lose the integration with it by installing a completely new aftermarket system...at this point i'm going to put the audio on hold and work on other things for the time being

Parrotguy · 04-25-2010, 12:02 AM

Rasengan,
Any further thoughts on how to improve the audio? Is relocating the "subs" an option?

xTIMMYxCOREx · 06-29-2010, 10:58 AM

I feel like I get more bass from the door speakers than the subwoofers, is there any way to test them??

FuszNissan · 06-29-2010, 11:32 AM

Try switching the fade to rear, that will at least let you hear the difference. From Front fade/rear fade.

03-18-2010, 05:06 PM	#19 (permalink)
Rasengan Base Member Join Date: Jan 2010 Location: Chicago Age: 47 Posts: 128 Drives: '10 Roadster T/S 6MT Rep Power: 15	i did some more investigating yesterday and the "subs" are in the trunk right behind the liner facing the area that houses the tonneau cover...i'm not sure how good this placement is since it has to pass through that entire section and i know for a fact these subs aren't strong enough to do that just thinking of options to upgrade the sound system of the Roadster __________________ 2010 Platinum Graphite 370Z Roadster 6MT Touring/Sport

03-19-2010, 04:40 PM	#21 (permalink)
Rasengan Base Member Join Date: Jan 2010 Location: Chicago Age: 47 Posts: 128 Drives: '10 Roadster T/S 6MT Rep Power: 15	it has to pass through the space where the top folds into...i think it might have sounded better had it been placed right behind the seats being that those woofers are 6.5" (i believe), really thin, not sealed, and severely underpowered...with the top down, i'm sure it's impossible to hear __________________ 2010 Platinum Graphite 370Z Roadster 6MT Touring/Sport

04-10-2010, 09:14 PM	#27 (permalink)
Rasengan Base Member Join Date: Jan 2010 Location: Chicago Age: 47 Posts: 128 Drives: '10 Roadster T/S 6MT Rep Power: 15	well ZeeYouLater is definitely right, i faded the sound to the rears and heard practically nothing in terms of bass...you would assume that you would have the same amount of bass fading all front or all rear because the subs should be a separate channel but nope, nothing if you fade all to the back...i believe most, if not all the bass you hear is actually coming from your front speakers simply switching out the speakers isn't an option, not with the bose...you also cannot just add an amp as our experts here on the boards (bigaudiofan) have determined that bose systems automatically cut out certain frequencies at high volumes to limit distortion and prevent you from blowing out your speakers...what has been suggested is getting the MTX ReQ5 to take the signal and "clean" the digital processing the bose is doing if you want to install an aftermarket amp i didn't know it was going to be such a headache getting better sounding system with the "premium" audio but i really wanted the NAV system and i really don't want to lose the integration with it by installing a completely new aftermarket system...at this point i'm going to put the audio on hold and work on other things for the time being __________________ 2010 Platinum Graphite 370Z Roadster 6MT Touring/Sport

06-29-2010, 11:32 AM	#30 (permalink)
FuszNissan A True Z Fanatic Join Date: May 2009 Location: St. Louis Posts: 14,275 Drives: Pure Sex Rep Power: 542	Try switching the fade to rear, that will at least let you hear the difference. From Front fade/rear fade. __________________ Mods: Too Many to list! LouFuszNissan ZDAYZ 2012

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03-16-2010, 03:39 PM	#16 (permalink)
Parrotguy Base Member Join Date: Oct 2009 Location: San Diego Posts: 51 Drives: '10 Roadster Touring Rep Power: 16	I haven't gotten my car yet, but is it possible the foam helps the sound deadening? There have been posts saying that the roaster is more quiet than the coupe because in the roadster the trunk is enclosed. I don't know if the foam you are talking about is in a place where it might help sound deadening. Just a thought.

03-16-2010, 07:44 PM	#17 (permalink)
John Bradley Enthusiast Member Join Date: Aug 2009 Location: Athens, Georgia Posts: 419 Drives: 2010 Silver RDZTER Rep Power: 16	I think it's just the design of roadster since there is no open back it hides the noise better.. Mine is alot quieter than the coupes I have been in

03-18-2010, 02:54 PM	#18 (permalink)
Ishtim Base Member Join Date: Jan 2010 Location: N.Alabama Posts: 19 Drives: 10-370zBlkChry-7spd Rep Power: 15	Thanksn for posting the pic... My wife had just asked me "where is the microphone?" last night...

03-19-2010, 03:38 PM	#20 (permalink)
Parrotguy Base Member Join Date: Oct 2009 Location: San Diego Posts: 51 Drives: '10 Roadster Touring Rep Power: 16	What do the sound waves have to pass through before entering the cabin? If the seats are all the way back, are they up against the speakers?

03-20-2010, 02:48 PM	#22 (permalink)
Parrotguy Base Member Join Date: Oct 2009 Location: San Diego Posts: 51 Drives: '10 Roadster Touring Rep Power: 16	Are their adequate air spaces in the plastic panel behind the seat to let the sound waves through? Would it help to add more air holes? Is there room to install a bigger speaker? Which brings up the next question, I assume we get an amp - do they tell us what its watt output is?

04-10-2010, 03:13 PM	#26 (permalink)
Parrotguy Base Member Join Date: Oct 2009 Location: San Diego Posts: 51 Drives: '10 Roadster Touring Rep Power: 16	I'm still waiting for delivery of my car so I can't be of much help, but I think the first step is to figure out how much power the amp Nissan put in there is putting out. If the amp is large enough there may be a simple fix by swapping out the speakers for ones which can handle high output without distortion. If the amp is weak then its a bigger problem. That would mean replacing the amp and the speakers. I am driving an '07 Z4 (7 days left on the lease) which also has two subs, mounted directly behind the seats. They are also not large, I think they are probably 6.5", but they will blow you out of the car at half volume with zero distortion. The amp is 440 watts, so if the amp is big enough and the speakers are built to take high output, you can get great bass even with small speakers. Please let us know anything you find out. Thanks.

04-25-2010, 12:02 AM	#28 (permalink)
Parrotguy Base Member Join Date: Oct 2009 Location: San Diego Posts: 51 Drives: '10 Roadster Touring Rep Power: 16	Rasengan, Any further thoughts on how to improve the audio? Is relocating the "subs" an option?

06-29-2010, 10:58 AM	#29 (permalink)
xTIMMYxCOREx Base Member Join Date: Feb 2010 Location: Burbank, CA Posts: 152 Drives: 2010 370Z Roadster Rep Power: 15	I feel like I get more bass from the door speakers than the subwoofers, is there any way to test them??