The Truth About Porsche Interior Sound | Sound Symposer and Soundaktor

Did you know your Porsche likely has some sort of sound enhancement in the cabin? In this episode we explore the Soundaktor and Sound Symposer - finding out how and when they are working. Is it something you want to disable? Be sure to watch and I'll show you how!
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Chapters:
Intro: 00:00
About the Soundaktor: 01:40
Disabling Soundaktor: 02:55
Testing the Soundaktor: 04:15
Sound Symposer - how it works: 06:48
Will it help with drone?: 08:30
Testing the Sound Symposer: 09:04
Deactivating the Sound Symposer: 13:13
Conclusion: 14:08
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Useful reading:
Porsche Press Article about Cabin Sound Design:
www.porsche.com/usa/aboutpors...
Car and Driver article about the Sound Symposer:
www.caranddriver.com/features...
718 Forums Post about the Sound Symposer:
www.718forum.com/threads/how-...
718 Forums Post about the Soundaktor:
www.718forum.com/threads/soun...
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Videos about the Track Nanny - the GPS enabled exhaust valve controller:
About: • Porsche too loud for t...
Install: • GT4 Detailed Exhaust V...
Testing: • Will the Track Nanny S...
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Want to buy a Sound Symposer delete kit, even though you only need to clog the outlet hole?
Soul Performance Delete Kit: soulpp.com/product/porsche-71...
Fabspeed Motorsports Delete Kit:
www.fabspeed.com/fabspeed-por...
Some images in this video are from Porsche Press and used for commentary purposes. I do not own those images.
Jet Fuel only is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to amazon.com
All information is presented in good faith and with no representations or warranties regarding its accuracy, completeness, reliability, safety, effectiveness or any other matter whatsoever. To the fullest extent permitted by law, Jet Fuel Only (and its members and agents) shall have no liability whatsoever, under any theory of law, and anyone using or accessing this information assumes any and all associated risks. Always follow factory safety precautions and seek the help of a professional if you do not have the training, tools, skills, or knowledge to safely accomplish automotive work.

[@colinslye4814]

I'm not only here for the sound symposer but you get a like for putting that time stamp in and not wasting peoples time because most big youtubers dont do that

[@JetFuelOnly]

Only those smart enough to look for it get the prize! Thanks for watching. A view is only 30 a but I welcome your stay for the rest!

[@tet2mor282]

A lot of people waste their time just by watching KZbin in general anyway... maybe you should go read a book instead! 😂😂😂

[@mpp9964]

Best explanation I’ve seen on symposer operation. Thanks for the diligence, you just helped me decide to leave it alone

[@MauroFire]

Great content! I got a gt4 coming soon and your videos are really helpful. Keep them coming

[@gentianmedia3814]

Great video, really appreciate all the overlays and the editing that goes into it!

[@JetFuelOnly]

Thanks!

[@HLinHD]

good info thanks man.

[@docmartin6348]

I really appreciate the unique information in this video! Have not seen anyone else cover these items before! Thank you!

[@user-lt7xe2gt2k]

Excellent, thank you.

[@TRSCobra]

Thanks for the informative video! I gotta get the ejection seat button for mine 😅

[@mregfx5308]

thanks for this, just plugged it behind the seats in my GT4 - mad difference much better

[@brucebermann8771]

Would also like just plug the hole in my 718GT4. Is there a link to the process required to access the hole from the cabin?

[@JetFuelOnly]

This video includes what you need to know. Remove plastic trip near one of the upper seatbelt connections. You may be able to slide the carpet out. But if not you will need to take the steps to remove the cross bar.

[@brucebermann8771]

@@JetFuelOnly Thank you!

[@stevosd60]

Just taken delivery of 992 Carrera and sounds like a bag of spanners on the motorway. Test drove 4S and Carrera T and drove Base 992 at Silverstone and took that car on the road on the day before I ordered my car and they were quiet by comparison Both test drive cars had only done a few hundred miles. So will do a few 100 more miles in my 992 and see how it sounds.

[@Hind135]

Thank you for these videos. I have the Soul caps but never installed them yet, I only care to remove drone under 3k rpm, so I wont be doing this mod anymore. You are awesome. ALSO - where did you get the shirt?

[@JetFuelOnly]

Glad it saved you some time and energy. Here’s the shirt. oloiinc.com/products/livery-tee

[@nodrogkam]

Great video! Would have been nicer if Porsche mimiced VW/Audi and put the soundaktor at the front windshield. Although that would make it seem extra fake since no sound should come from the front. On VW/Audi it can be coded at 10% increments, and I found 30% to be nice.

[@JetFuelOnly]

I hear the 2019 718 caymans and Boxters can also be coded.

[@danbourne11]

Pulled my fuse. Made it much nicer in every drive mode imo

[@Tweevest]

on a 981?

[@danbourne11]

@@Tweevest718s and 718gts like in the vid. Still 100% sold on the removal. Tried it again once. Lasted 10 mins, pulled it again. So much nicer. I wish every 718 owner knew it!

[@Tweevest]

@@danbourne11 I do not know if it's the same on the 981 GTS, becasue I'm about to pull it out lol but do not want to fk it up. Did you pull it out battery removed?

[@997turbo2]

Bravo 👍🏻 thank you man, your videos are very informative, helpful and enjoyable, the final video is amazing, I wanted to know the name of the background music I liked it but couldn’t find it in the description but I found a transcript 👍🏻 links to all related information mentioned in the video, which is an indicator of level of quality you put in your work 👍🏻 thank you again, please if you can share the background music track name i will appreciate it 💐

[@997turbo2]

Found it on shazam 👍🏻

[@JetFuelOnly]

Thanks! Yeah I need to be better at posting the music name in the description.

[@997turbo2]

@@JetFuelOnly your videos are great 💯/ 💯

[@JetFuelOnly]

Thanks!

[@vgaustin1506]

Thanks for the great video. I have a question about the Sound Symposer, if it is Vacuum activated, could you not just clip that small vacuum hose shut and it would prevent the valve from opening?

[@JetFuelOnly]

Probably? But the other method of stuffing the hole is just simpler and less destructive.

[@vgaustin1506]

@@JetFuelOnly Thanks so much for replying, it’s great to be able to interact with someone who puts such effort into amazing videos and is knowledgeable about the subject! Just to make sure I’m not getting this wrong, I meant that tiny rubber hose hooked to that vacuum actuated valve, not the whole big plastic hose. I’m still waiting for my car to get here from European Delivery so it’s hard not to be able to actually go out and look at this. Ps. Great review for the ultimate cup holder, I saw pair come on eBay the other day and jumped on them based on your review.

[@JetFuelOnly]

@vgaustin1506 thanks! Yeah I know what you meant. I can’t say I know for sure that is how it’s actuated but it’s a fair assessment. Congrats on your car. Drove it awhile and see what you think before messing with it!

[@vgaustin1506]

@@JetFuelOnly Great point, will definitely drive around more on a daily basis before doing anything. Will report back. Keep up the great work!

[@tobiashemberle8539]

Has it something to do with an valve control for example from cargraphic?

[@JetFuelOnly]

No it doesn’t. The sound symposer continues to operate normally with a valve controller.

[@darrylgarcia9147]

Do the new Cayman 718 base have the soundaktor?

[@JetFuelOnly]

Yes

[@porschestories409]

what is the solution to drone between 2-3k. i have a Fabspeed lightweight pipe...resonators the answer?

[@JetFuelOnly]

Is it valved? I think that’s the key. Everything I hear replacing the stock muffler is going to make some noise.

[@user-yx8up5rr6y]

why do people keep saying it sounds like a Subaru, when Subaru based its design on the Porsche engine? The SUBARU sounds like a Porsche, not the other way around.

[@geoff.graham]

If you want one of the weirdest sounds you can make with the Spyder, it’s possible to use just enough throttle to keep the engine in the wild bass drone of cylinder deactivation, but also to activate the sound symposer. 🤣 Both at once is a unique experience. 🤣

[@JetFuelOnly]

What!? Lol. Need details to make this happen

[@geoff.graham]

@@JetFuelOnly just go out on the freeway and turn off the auto start/stop… make sure to hit the PSE button. Then keep a steady enough throttle for it to get into cyclometer deactivation and the crazy drone that goes with it. Then add just enough throttle slowly to get the sound symposer to open a little. I’ve mostly noticed it when going up a little grade but not as much on flat ground.

[@TheBucketOfTruth]

This was excellent info. Came here from rennlist.

[@JetFuelOnly]

Thanks for watching!

[@FreestylerAlbert]

the GT4RS have Sound Symposer too?

[@JetFuelOnly]

Seriously doubt it!

[@Marc-ty5sz]

pretty sure you done need it as the intake is literally behind your head.

[@johnob1824]

i dont notice much change with pse button pressed, pulled fused, stil did not notice much difference

[@JetFuelOnly]

Do you think it was working in the first place?

[@ralfulrich6254]

for your drone problem: get a base cayman. it does not make much sound at all. 😀

[@JetFuelOnly]

😴

[@Tweevest]

But why not removing the fuse instead it's even easier?

[@JetFuelOnly]

The Symposer isn’t electric. There’s no fuse to remove. The Sound Aktor has a fuse though.

[@Tweevest]

@@JetFuelOnly are you sure, the 718 seems to have this fuse, the 7.5a fuse that stop the sounds symposer valve from opening.

[@JetFuelOnly]

@Tweevest on a 4.0 engine car?

[@Tweevest]

@@JetFuelOnly Seems so yes, so was wondering if for the 981 GTS it was the same

[@Gungaganoonga]

Porsche screwed up with 4 cyl

[@DaRkJ4ck]

the intro sound / transition sound is WAY to loud compared to you talking. nice vid otherwise.

[@JetFuelOnly]

Thanks for the input. You’d be amazed how different it comes across depending on your audio setup. I try to listen on a few devices before publishing but cant do them all. Can I ask what you watched/listened on?

[@DaRkJ4ck]

​@@JetFuelOnly PC with headphones

[@callelindstrom4789]

Cant get enough of this channel…🫶🏻 😊 Thx for excellent videos and information 🙏🏻

[@JetFuelOnly]

Thanks!

[@callelindstrom4789]

@@JetFuelOnly You welcome!, now Im looking up that PPF stealth wrap, awesome. I own 718 GTS 2.5, same black color as your GT4 but with GT3 992 Neodyme gold satin color on my 20’ wheels. Im totaly blowned away for how your car look 👍🏻