Frequency response for door woofers
Nordschleife Master
Joined: Oct 2015
Posts: 5,723
Likes: 2,291
From: Zuffenhausen, Georgia
Drifting
Joined: Jun 2005
Posts: 2,391
Likes: 964
From: NJ/NY area
My experience is that you are better off leaving the door woofers in (will blend best with the mains and not overwhelm the door enclosure) and try to find a place to mount a sub elsewhere if you want to supplement the bass.
Nordschleife Master
Joined: Oct 2015
Posts: 5,723
Likes: 2,291
From: Zuffenhausen, Georgia
I wouldn't expect you to purchase a professional setup, but you can download pink noise from YouTube and run a free spectrum analyzer with your iPhone. That will give you a decent analysis that you're looking for. Another reason these systems don't sound great in these cars is because of the ambient noise these cars produce. This adds a lot challenge for the audio system to overcome.
Drifting
Joined: Oct 2009
Posts: 2,211
Likes: 436
From: yoou -tah
[QUOTE=b3freak;18090053 Another reason these systems don't sound great in these cars is because of the ambient noise these cars produce. This adds a lot challenge for the audio system to overcome.[/QUOTE]
So true. I've never had a 911 sound great while driving but they can be okay when you turn the motor off and sit. Works for me.
So true. I've never had a 911 sound great while driving but they can be okay when you turn the motor off and sit. Works for me.
Pro
Joined: Aug 2013
Posts: 527
Likes: 120
From: Cincy
Wow. Seems like you know your sound. I’ve also got a non-Bose ‘99 C2.
head unit: prior owner replaced a android Atoto A6 ( I like it and will keep)
amp: factory amp in place but bypassed by prior owner (I’m looking to up grade: 5 channel)
door speakers/woofers: originals in place (was planning on replacing-you think good?)
dash speakers: original Hertz. Seem to be degraded
rear speakers: prior owner replaced w Rockford Fosgate Punch 142s
Budget is about $1000. Have 3-D printed 4” speaker adapters ready to go. Ok w bailing on door subs for powered subwoofer if recommended. Car is very very far from original and very loud so sound quality not paramount. Thanks in advance.
head unit: prior owner replaced a android Atoto A6 ( I like it and will keep)
amp: factory amp in place but bypassed by prior owner (I’m looking to up grade: 5 channel)
door speakers/woofers: originals in place (was planning on replacing-you think good?)
dash speakers: original Hertz. Seem to be degraded
rear speakers: prior owner replaced w Rockford Fosgate Punch 142s
Budget is about $1000. Have 3-D printed 4” speaker adapters ready to go. Ok w bailing on door subs for powered subwoofer if recommended. Car is very very far from original and very loud so sound quality not paramount. Thanks in advance.
Trending Topics
Nordschleife Master
Joined: Oct 2015
Posts: 5,723
Likes: 2,291
From: Zuffenhausen, Georgia
https://en.wikipedia.org/wiki/Noise_...ng%20monitored.
Lots of people equate booming bass with a "great sound systems", but I'm of a different camp. I want clean sound across the spectrum that is best represents the type of music or vocal performance I'm playing. Sub bass, if not controlled or tuned properly can create unwanted overtones that bleed into the mid range causing it very hard to understand the voice frequencies. Some overtones are natural and appreciated, but some cause tension or dissonance. Those should be avoided.
https://en.wikipedia.org/wiki/Overtone
The original factory system in my 1997 Ford F-150 sounds cleaner than the modern BOSE system in my 987. Listening to talk radio is much easier in the F150, but the ambient noise of the 987 along with the booming BOSE subwoofer makes it hard to hear vocals driving down the road. I really don't expect much out of radios in the Porsches because the sound of a flat 6 rear engine is what it's about to me.
Ironically, my father installed Becker radios back in the 70s. He was a military trained electronics engineer. He felt Porsche had a big advantage when it came to good car stereos back then. They were among the few that had separate amplifiers to improve speaker performance. Integrated amplifiers in the head-units sucked back then in comparison. The 80s changed all that!
Rennlist Stories
The Best Porsche Posts for Porsche Enthusiasts
Porsche's Top 5 Most Questionable Naming Decisions
Verdad Gallardo
Pogea Racing's 964 Porsche 911 Reimagination Stands Out in a Crowded Field
Verdad Gallardo
6 Convertible Top MYTHS Most People Don't Understand!
Michael S. Palmer
2026 Porsche 911 Club Coupe is Spectacular, And Everything Wrong with the Porsche Market
Joe Kucinski
Talos Takes Your 991 Porsche 911 GT3 to the Next Level for a Cool $1.13 Million
Verdad Gallardo
9 Vehicles Porsche Helped Engineer that Aren't Porsches
Verdad Gallardo
9 Features and Characteristics That Only Porsche People Understand
Verdad Gallardo
I've Written 500 Rennlist Articles: Here's How Porsche Has Changed Along the Way
Joe Kucinski
10 Most Unnecessary Porsches Ever Built (And Why We Love Them)
Verdad Gallardo
Rennlist Member
Joined: Aug 2006
Posts: 9,213
Likes: 1,908
From: Chicago, IL
I’m guessing the frequency response of a 4” woofer is not below 100Hz. In-car response could be below 100Hz, because of ‘small room’ benefits, but the best thing to do with bass for a car is a real subwoofer.
As for the high end, up to 20,000Hz, the speaker system is probably not doing it. Replacement drivers of high quality probably can do that no problem.
As for the high end, up to 20,000Hz, the speaker system is probably not doing it. Replacement drivers of high quality probably can do that no problem.
Pro
Joined: Aug 2013
Posts: 527
Likes: 120
From: Cincy
"Good sound" is very subjective. However, replacing the drivers with new higher performance alternatives is the cheapest and easiest way to improve the sound in a car. If you're looking to improve the sound chamber (i.e. interior cabin of the car), then you'll need to add noise absorption material in the doors, under the carpet, and even behind the plastic panels. This will minimize a lot of the unwanted ambient noise and lower the noise floor in the interior of the car.
Nordschleife Master
Joined: Oct 2015
Posts: 5,723
Likes: 2,291
From: Zuffenhausen, Georgia
I would bet most people that go straight pipes or extremely loud exhaust systems are young. Older, wiser owners have realized that hearing is a terrible thing to lose.