C7 General Discussion General C7 Corvette Discussion not covered in Tech
Sponsored by:
Sponsored by:

Here's my take on the C7's Bose system (10 speaker version w/subwoofer)

Thread Tools
 
Search this Thread
 
Old 03-24-2014, 03:06 AM
  #21  
Jontall
Burning Brakes
 
Jontall's Avatar
 
Member Since: Sep 2005
Posts: 1,095
Likes: 0
Received 2 Likes on 2 Posts

Default

I thought GM was coming out with a new head unit in April to replace the current unit.
Old 03-26-2014, 09:11 PM
  #22  
camaro01octane
Cruising
 
camaro01octane's Avatar
 
Member Since: Dec 2013
Posts: 13
Likes: 0
Received 0 Likes on 0 Posts
Default

I dont know what people are complaining about, i got the 2lt with the subwoofer and love the sound. I had a 2010 camaro ss and that was a crappy sound system. But with the bose system the vette sounds awesome.
Old 03-26-2014, 09:20 PM
  #23  
thedofuss
Drifting
 
thedofuss's Avatar
 
Member Since: Nov 2013
Posts: 1,348
Likes: 0
Received 1 Like on 1 Post
Default

"a good car for the money".
Old 03-26-2014, 09:40 PM
  #24  
gthal
Safety Car
 
gthal's Avatar
 
Member Since: Feb 2013
Posts: 4,937
Received 1,170 Likes on 486 Posts
Default

Originally Posted by thedofuss
"a good car for the money".
I disagree... the system is pretty good and the car, overall, is great regardless of price. Coming from 2 very expensive German cars, I don't see a difference with the C7 "for the money" yet.

Last edited by gthal; 03-26-2014 at 09:48 PM.
The following users liked this post:
Maxie2U (03-03-2020)
Old 03-26-2014, 09:43 PM
  #25  
ATX-C7
Melting Slicks
 
ATX-C7's Avatar
 
Member Since: Feb 2014
Location: Austin Texas
Posts: 2,406
Likes: 0
Received 3 Likes on 3 Posts
NCM Sinkhole Donor
Default

Car is amazing...that sound system...ehhh. But hey, maybe they'll learn and offer a real high end system and make some extra $$.
The following users liked this post:
Maxie2U (03-03-2020)
Old 03-26-2014, 09:45 PM
  #26  
Glen e
Race Director
 
Glen e's Avatar
 
Member Since: Sep 2013
Location: Ft Lauderdale
Posts: 10,470
Received 972 Likes on 506 Posts
Tech Contributor

Default

Originally Posted by gthal
I disagree... the system is pretty good and the car, overall, is great regardless of price.

I'm happy with the system, certainly enuf, that it's a mod I won't do.....
Old 03-26-2014, 09:55 PM
  #27  
KenHorse
Team Owner
Thread Starter
 
KenHorse's Avatar
 
Member Since: Aug 2007
Location: I live my life by 2 rules. 1) Never share everything you know. 2)
Posts: 136,148
Received 2,402 Likes on 1,366 Posts
St. Jude Donor '11-'12-'13, '16-'17-'18

Default

"Good" is a very subjective thing. What sounds good to me may sound crappy to the next guy and vice versa.

I started this thread trying to be empirical in my observations and not anecdotal. Apparently I failed miserably
Old 03-26-2014, 10:00 PM
  #28  
Stingray Al
Burning Brakes
 
Stingray Al's Avatar
 
Member Since: Sep 2013
Location: Mountaintop PA
Posts: 828
Received 39 Likes on 22 Posts

Default

I think the system sounds great! No complaints here.
The following users liked this post:
Sixgun95 (03-04-2020)
Old 03-26-2014, 10:04 PM
  #29  
Nyvetteguy007
Melting Slicks
Support Corvetteforum!
 
Nyvetteguy007's Avatar
 
Member Since: May 2006
Location: Westchester County New York
Posts: 2,934
Received 258 Likes on 171 Posts

Default

Originally Posted by Stingray Al
I think the system sounds great! No complaints here.
Sounds good enough to me too
Old 03-27-2014, 06:34 AM
  #30  
WKMCD
Race Director
 
WKMCD's Avatar
 
Member Since: Dec 2004
Location: Haymarket VA
Posts: 13,765
Received 73 Likes on 48 Posts

Default

Center speakers are for listening to AM radio.

Does AM even exist anymore? Or FM for that matter.
Old 03-27-2014, 06:49 AM
  #31  
Supermassive
Melting Slicks
 
Supermassive's Avatar
 
Member Since: May 2013
Location: Argyle, Texas
Posts: 2,265
Received 794 Likes on 307 Posts

Default

I am one of those people that NEEDS music in my car and NEEDS it to sound good. Don't get me wrong, I love the sound of a car's exhaust but when cruising highways I have to have my music. My other issue is I have a sensitive ear for things that don't belong in my music, a slight buzz from a panel vibrating at a specific frequency or boominess from the sub drive me absolutely nuts.

All that said my personal issues typically force me to upgrade audio components pretty quickly. When I get the C7 this year I will tool around with the stock audio system for a while and see if I can live with it, if not I'll likely do what i did to my Titan and gut the stock audio system's 10 speakers and do a simple JL Audio C5 swap for the front door speakers, JL Audio C3's in the rear, with a simple StealthBox setup whenever JL makes one. For the amp, JL's HD900/5 is amazing and is what I use in my Titan. My only concern with the stock C7 audio system is the head unit. I doubt it will be possible to replace the stock unit with aftermarket due to the screen. So hopefully with everything else done, the head unit will produce crisp signals that aren't over processed before even leaving the unit.
Old 03-27-2014, 08:03 AM
  #32  
NSC5
Safety Car
Support Corvetteforum!
 
NSC5's Avatar
 
Member Since: Aug 2012
Posts: 3,960
Received 1,100 Likes on 742 Posts

Default

Originally Posted by KenHorse
I started this thread trying to be empirical in my observations and not anecdotal. Apparently I failed miserably
Ken,

I guy who could keep an audio thread empirically based and grounded in science would be talented enough to bring about peace in the Middle East without breaking a sweat

I appreciate your specific empirical observation which is far more useful than the generic "audio sounds crappy" threads. I expect with the Bose system the inflection point and slope for crossover are set in software so it should be something easily fine tuned in coming years if not for current owners.
Old 03-27-2014, 08:48 AM
  #33  
LIStingray
Melting Slicks
 
LIStingray's Avatar
 
Member Since: Sep 2013
Location: Long Island New York
Posts: 2,299
Received 461 Likes on 284 Posts
Default

Over the years I have only had two cars with factory systems that sounded really good, and none of those were Corvettes or Bose systems.
C7 Coupes will be a tough car to do aftermarket because there isn't any place to mount 3 or 4 amps and a 12" or larger subwoofer and still keep the trunk area useable.
Old 03-27-2014, 08:51 AM
  #34  
C8Jake
Race Director
 
C8Jake's Avatar
 
Member Since: Sep 2013
Location: ►SICAMOUS◄
Posts: 10,120
Received 5,416 Likes on 2,535 Posts
Default

Wife's Dodge Caravan has a better sound system
Old 03-27-2014, 09:16 AM
  #35  
Bill17601
AIR FORCE VETERAN
Support Corvetteforum!
 
Bill17601's Avatar
 
Member Since: Nov 2009
Location: Pennsylvania
Posts: 6,223
Received 439 Likes on 196 Posts

Default

Name:  image_zpsbbfa060a.jpg
Views: 1233
Size:  26.0 KB

Somehow sound of the radio has a very low priority in my Corvette. But hey we all buy our cars for different reasons..
Old 03-27-2014, 10:32 AM
  #36  
onthebottom
Pro
 
onthebottom's Avatar
 
Member Since: Aug 2013
Posts: 698
Likes: 0
Received 5 Likes on 3 Posts
Default

Perhaps I have the benefit of hearing loss but once I set the preferences to center point and whatever bose calls their noise canceling (or is it adapting) feature the audio is pretty good. I'd think the most obvious place to make improvements would be in sound deadening to lower the road noise.

I have thousands of my favorite songs on an SD card and none of them sound as good as the V8.
Old 03-28-2014, 05:21 AM
  #37  
SBC_and_a_stick
Safety Car
 
SBC_and_a_stick's Avatar
 
Member Since: Nov 2012
Location: North California
Posts: 4,737
Received 551 Likes on 311 Posts

Default

Originally Posted by KenHorse
"Good" is a very subjective thing. What sounds good to me may sound crappy to the next guy and vice versa.

I started this thread trying to be empirical in my observations and not anecdotal. Apparently I failed miserably
I've done a lot of acoustic testing in cars, c6 included. No C7 yet. There is a room node at ~70hz in almost every car. This changes a bit depending on where your head is in the forward/backward directions. This is simply a function of the car interior size, and that's why it's not really car independent.

A popular method to create the illusion of bass is to raise the QTS and FS of the driver and create an underdamped system. This will create a kinked response. See the blue line here:

source: http://www.ht-audio.com/pages/SpeakerBasics.html

With an underdamped system excursion is severely limited, either with a weak motor, or a stiff suspension. The speaker will create the illusion of bass by having that boost in the upper bass.

Let's look at the older 10" bose which might be the same as the one in the C7, not sure, but definitely closely related:

 Re = 0.4625 ohms
 Fs = 45.6971 Hz
 Zmax = 2.0756 ohms
 Qes = 1.2681
 Qms = 4.4224
 Qts = 0.9855
 Le = 0.1834 mH (at 1 kHz)
 Diam = 215.9000 mm ( 8.5000 in )
 Sd =36609.6161 mm^2( 56.7450 in^2)
 Vas = 66.5281 L ( 2.3494 ft^3)
 BL = 1.9067 N/A
 Mms = 34.7146 g
 Cms = 349.4218 uM/N
 Kms = 2861.8704 N/M
 Rms = 2.2538 R mechanical
 Efficiency = 0.4704 %
 Sensitivity= 88.7426 dB @1W/1m
 Sensitivity= 101.1220 dB @2.83Vrms/1m
source: http://www.diymobileaudio.com/forum/...subwoofer.html

What do we see? A very high QTS of 1 and a high FS of 46hz. This driver will sound boomy even in infinite baffle. It is always underdamped and it will get even boomier the smaller the box (or door volume) is. I have no reason to believe the C7 Bose 10" is any different.


So objectively two things are going on. A sever cut at 70hz due to room nodes, and huge boost right above that due to both a weak speaker motor and a very stiff suspension. Not a good recipe for good sound but one that creates the "illusion" of bass cheaply.

Last edited by SBC_and_a_stick; 03-28-2014 at 05:24 AM.

Get notified of new replies

To Here's my take on the C7's Bose system (10 speaker version w/subwoofer)

Old 03-28-2014, 12:44 PM
  #38  
Patriot77
Drifting
Support Corvetteforum!
 
Patriot77's Avatar
 
Member Since: Aug 2013
Location: Omaha
Posts: 1,303
Received 11 Likes on 10 Posts
Default

I went with the 1LT so I guess I won't have to worry about it.
Old 03-28-2014, 03:43 PM
  #39  
VIK TOY
Melting Slicks
 
VIK TOY's Avatar
 
Member Since: Jun 2008
Location: Aurora OR
Posts: 3,477
Likes: 0
Received 10 Likes on 9 Posts

Default

Originally Posted by Bill17601


Somehow sound of the radio has a very low priority in my Corvette. But hey we all buy our cars for different reasons..
Well, if it is a "garage queen" it doesn't matter. But, those that "drive" our Vettes and they are our DD want good music!!!
Old 03-28-2014, 03:51 PM
  #40  
ATX-C7
Melting Slicks
 
ATX-C7's Avatar
 
Member Since: Feb 2014
Location: Austin Texas
Posts: 2,406
Likes: 0
Received 3 Likes on 3 Posts
NCM Sinkhole Donor
Default

Originally Posted by VIK TOY
Well, if it is a "garage queen" it doesn't matter. But, those that "drive" our Vettes and they are our DD want good music!!!


Me likey good music jamming while driving


Quick Reply: Here's my take on the C7's Bose system (10 speaker version w/subwoofer)



All times are GMT -4. The time now is 04:58 AM.