Sub Woofer Installation, Tried to get better Audio without carving up the car |
|
Porsche, and the Porsche crest are registered trademarks of Dr. Ing. h.c. F. Porsche AG.
This site is not affiliated with Porsche in any way. Its only purpose is to provide an online forum for car enthusiasts. All other trademarks are property of their respective owners. |
|
Sub Woofer Installation, Tried to get better Audio without carving up the car |
r_towle |
Apr 24 2022, 01:03 PM
Post
#141
|
Custom Member Group: Members Posts: 24,560 Joined: 9-January 03 From: Taxachusetts Member No.: 124 Region Association: North East States |
Seems to be some great Knowledge here, so I’m hoping I can learn something.
I am planning to build a box, or two separate boxes, to place two 8 inch subwoofers behind the front seats, on the floor of my 1984 911. I have seen an older fiberglass box that is no longer produced, and a few other pictures. This is for subs. 8 inch pair One behind each seat Separate amp for the subs 1) does a sub box need to be ported for air to escape? 2) size of enclosure for 8 inch? What if it’s too small? 3) same amp fir two subs? 4) same box fir two subs, or separate? I have another amp that powers both door speakers, both tweeters, and rear speakers I currently have a single 12 in sub in the front trunk I want to remove so I actually use the front trunk. Advice? |
Chris914n6 |
Apr 24 2022, 02:22 PM
Post
#142
|
Jackstands are my life. Group: Members Posts: 3,302 Joined: 14-March 03 From: Las Vegas, NV Member No.: 431 Region Association: Southwest Region |
Watch youtube. This guy in particular. CarAudioFabrication
Too much to try to explain here. Seems to be some great Knowledge here, so I’m hoping I can learn something. I am planning to build a box, or two separate boxes, to place two 8 inch subwoofers behind the front seats, on the floor of my 1984 911. I have seen an older fiberglass box that is no longer produced, and a few other pictures. This is for subs. 8 inch pair One behind each seat Separate amp for the subs 1) does a sub box need to be ported for air to escape? 2) size of enclosure for 8 inch? What if it’s too small? 3) same amp fir two subs? 4) same box fir two subs, or separate? I have another amp that powers both door speakers, both tweeters, and rear speakers I currently have a single 12 in sub in the front trunk I want to remove so I actually use the front trunk. Advice? |
bbrock |
May 21 2022, 10:37 PM
Post
#143
|
914 Guru Group: Members Posts: 5,269 Joined: 17-February 17 From: Montana Member No.: 20,845 Region Association: Rocky Mountains |
@Mikey914 any progress on the subwoofer boxes?
|
FlacaProductions |
May 22 2022, 09:20 AM
Post
#144
|
Senior Member Group: Members Posts: 1,550 Joined: 24-November 17 From: LA Member No.: 21,628 Region Association: Southern California |
(IMG:style_emoticons/default/agree.gif)
Brent - I did "your" stereo install - same amp and location/method as well as some new Alpine 6-1/2's replacing the older Blau's. Sounds good but holding off on a sub even tho I have George's pre-cut panel ready to go. I'm thinking a sealed box would be best.... |
bbrock |
May 22 2022, 09:45 AM
Post
#145
|
914 Guru Group: Members Posts: 5,269 Joined: 17-February 17 From: Montana Member No.: 20,845 Region Association: Rocky Mountains |
(IMG:style_emoticons/default/agree.gif) Brent - I did "your" stereo install - same amp and location/method as well as some new Alpine 6-1/2's replacing the older Blau's. Sounds good but holding off on a sub even tho I have George's pre-cut panel ready to go. I'm thinking a sealed box would be best.... Good plan. I made a panel to mount the sub in as a temporary measure. To be honest, I think the bass is worse with that setup than if I had no sub at all. I'm going to see if I can figure out a way to make the panel seal tightly against the bulkhead to form a sealed compartment. If that doesn't work, I may just disconnect my sub until a 914R box is available or I have time and $ to make one myself. To do it right will require making a mold so I'd need to make enough to sell a few to recoup costs. Doesn't make much sense to do that with a 914R unit in the works. I need to do something though. I need my tunes! (IMG:style_emoticons/default/tunez.gif) |
mb911 |
May 22 2022, 10:03 AM
Post
#146
|
914 Guru Group: Members Posts: 6,798 Joined: 2-January 09 From: Burlington wi Member No.: 9,892 Region Association: Upper MidWest |
Couldn't a small sub box be made to fit where the foam kick panel is in the passenger foot well?
|
FlacaProductions |
May 22 2022, 10:24 AM
Post
#147
|
Senior Member Group: Members Posts: 1,550 Joined: 24-November 17 From: LA Member No.: 21,628 Region Association: Southern California |
Yup - that's exactly what we're talking about....it just needs to be made!
|
bbrock |
May 22 2022, 10:35 AM
Post
#148
|
914 Guru Group: Members Posts: 5,269 Joined: 17-February 17 From: Montana Member No.: 20,845 Region Association: Rocky Mountains |
Yup - that's exactly what we're talking about....it just needs to be made! They have been about "six weeks out" for over two years now. (IMG:style_emoticons/default/sad.gif) |
Mikey914 |
May 22 2022, 11:10 AM
Post
#149
|
The rubber man Group: Members Posts: 12,638 Joined: 27-December 04 From: Hillsboro, OR Member No.: 3,348 Region Association: None |
Honestly I had been pushing forward an the door panels, the dash tops the side front pillars and the exhaust. The resins cost has spiked and is actually starting to stabilize. I have the fiberglass bumper top in front of them and they are about to be released. Mark |
FlacaProductions |
May 22 2022, 11:12 AM
Post
#150
|
Senior Member Group: Members Posts: 1,550 Joined: 24-November 17 From: LA Member No.: 21,628 Region Association: Southern California |
Thanks Mark - we know you're busy and always bringing something new to the market - just keeping this in line! (IMG:style_emoticons/default/aktion035.gif)
|
bbrock |
May 22 2022, 03:24 PM
Post
#151
|
914 Guru Group: Members Posts: 5,269 Joined: 17-February 17 From: Montana Member No.: 20,845 Region Association: Rocky Mountains |
Thanks Mark - we know you're busy and always bringing something new to the market - just keeping this in line! (IMG:style_emoticons/default/aktion035.gif) (IMG:style_emoticons/default/agree.gif) Thanks for the update Mark. We do appreciate the furious pace you've been developing products at. And just as a reminder, I believe most of us waiting on these agreed that unported boxes would be best and easier to produce. Since ideal port size varies by speaker, probably best to leave that for the customers to modify as needed. |
mb911 |
May 22 2022, 06:46 PM
Post
#152
|
914 Guru Group: Members Posts: 6,798 Joined: 2-January 09 From: Burlington wi Member No.: 9,892 Region Association: Upper MidWest |
Let's just all do high quality wood ones. If nothing else I could do them . Let me know
|
bbrock |
May 22 2022, 10:48 PM
Post
#153
|
914 Guru Group: Members Posts: 5,269 Joined: 17-February 17 From: Montana Member No.: 20,845 Region Association: Rocky Mountains |
Let's just all do high quality wood ones. If nothing else I could do them . Let me know The challenge is that the foot well space has a very complicated contour. You need to use pretty much all of that space to get enough volume for a decent sub enclosure so it doesn't lend itself to wood. I'm a woodworker myself and have contemplated whether it could be done. The only way I come up with is to cut a front and end piece that is sealed to the metal bulkhead to create a sealed air volume. If I had a spare footwell foam, I'd lop off the inner end to get a good template for a cut. |
mgp4591 |
May 22 2022, 11:48 PM
Post
#154
|
914 Guru Group: Members Posts: 5,363 Joined: 1-August 12 From: Salt Lake City Ut Member No.: 14,748 Region Association: Intermountain Region |
There's a design in the works to maximize the forward part of the console to fit a sub box with a 6" sub and a labyrinth baffle to have in drop into the 60hz range which should be enough with the cabin gain to provide a good bump. Possibly even 2 6s...
|
Mikey914 |
May 23 2022, 02:51 AM
Post
#155
|
The rubber man Group: Members Posts: 12,638 Joined: 27-December 04 From: Hillsboro, OR Member No.: 3,348 Region Association: None |
Actually, it's not that I'm not doing anything here. I have some tooling partially completed, and once I can complete it, it will make these fit well and will make these easy to mass produce. I appreciate the patience.
Mark |
Nexage |
Apr 1 2024, 03:10 PM
Post
#156
|
Newbie Group: Members Posts: 4 Joined: 30-May 22 From: Georgia Member No.: 26,582 Region Association: None |
The Kenwood KFC-4675C speakers sound like a solid choice, especially with the built-in midrange and high-range components. Using a passive crossover along with an original Blaupunkt tuner and an '80s power amp sounds like a smart way to maintain the authenticity of a car restoration while maintaining the desired sound quality.
Installing sound deadening materials throughout the vehicle was a smart move to reduce noise and improve the overall driving experience. And I must say, your son’s idea of installing a subwoofer on the center console is quite brilliant! This is a creative solution that preserves the original appearance of the car and gives the audio system additional expressiveness. I would also recommend that you create personal software for high-quality stereo system setup. The professionals of the https://www.cogniteq.com/ team can help with this; they will do everything in the best possible way. |
ctc911ctc |
Apr 1 2024, 03:15 PM
Post
#157
|
Senior Member Group: Members Posts: 890 Joined: 9-June 18 From: boston Member No.: 22,206 Region Association: North East States |
Thank you for the nice complement - he is in Engineering school now, we both would like to do a 2.0 version - we learned a great deal......
The Kenwood KFC-4675C speakers sound like a solid choice, especially with the built-in midrange and high-range components. Using a passive crossover along with an original Blaupunkt tuner and an '80s power amp sounds like a smart way to maintain the authenticity of a car restoration while maintaining the desired sound quality. Installing sound deadening materials throughout the vehicle was a smart move to reduce noise and improve the overall driving experience. And I must say, your son’s idea of installing a subwoofer on the center console is quite brilliant! This is a creative solution that preserves the original appearance of the car and gives the audio system additional expressiveness. |
Freezin 914 |
Apr 1 2024, 05:39 PM
Post
#158
|
Senior Member Group: Members Posts: 834 Joined: 27-July 14 From: Wisconsin Member No.: 17,687 Region Association: Upper MidWest |
Do the Kenwood KFC 4675C speakers fit factory grills with no mods? Just looking at this….anyone install them recently?
|
JmuRiz |
Apr 1 2024, 07:50 PM
Post
#159
|
914 Guru Group: Members Posts: 5,421 Joined: 30-December 02 From: NoVA Member No.: 50 Region Association: MidAtlantic Region |
They should, most 4x6 or 4x6 plate speakers fit w/o mods.
I had infinity kappa 4x6 plates (separate 4” and tweeter) worked like a charm. |
Lo-Fi Version | Time is now: 18th April 2024 - 02:44 AM |
All rights reserved 914World.com © since 2002 |
914World.com is the fastest growing online 914 community! We have it all, classifieds, events, forums, vendors, parts, autocross, racing, technical articles, events calendar, newsletter, restoration, gallery, archives, history and more for your Porsche 914 ... |