I'm thinking mr. sound symposer needs to go
12-04-2016 | 11:03 PM
#32
RL Community Team
Rennlist Member
Rennlist Member
Joined: Jan 2013
Posts: 8,937
Likes: 2,624
From: The Woodlands, TX.
So I did about 5-10 pulls in sport and normal, PSE off. Did them at low RPM and high RPM.
honestly, I couldn't tell a damn difference.
Is it more prominent in the coupe vs the cab? Or at a certain RPM?
honestly, I couldn't tell a damn difference.
Is it more prominent in the coupe vs the cab? Or at a certain RPM?
12-05-2016 | 06:48 AM
#33
Burning Brakes
Joined: Feb 2015
Posts: 799
Likes: 10
From: London
I've been playing with this recently. Have upgraded the stereo and wanted my 'Fline'-exhaust (Fabspeed headers, Kline catback) car to be a bit quieter in quiet mode so had the audio shop plug the symposer as well as putting a little sound proofing around the engine bay.
The sound proofing worked a little, which was all I needed, but I didn't like having the symposer blocked. It just made the sound less nuanced and interesting for me in Sport mode, and I like that Sport mode changes the sound in one way and PSE button (linked to valve on Kline system) does so in another. So I had the symposer unblocked again. Car is identical in normal mode but louder/better sounding to me in Sport, so best of both.
Also, whether or not one likes the intake sound, I think it's a stretch to describe it as 'drone'. Drone, in my understanding, is what happens at about 2,000 rpm under load when the exhaust note hits the resonant frequency of the car. All exhausts do it a bit, including PSE, but I don't think intake noise causes it (?) If you want no drone whatsoever, don't cruise in seventh gear with PSE or indeed any other exhaust switched on.
The sound proofing worked a little, which was all I needed, but I didn't like having the symposer blocked. It just made the sound less nuanced and interesting for me in Sport mode, and I like that Sport mode changes the sound in one way and PSE button (linked to valve on Kline system) does so in another. So I had the symposer unblocked again. Car is identical in normal mode but louder/better sounding to me in Sport, so best of both.
Also, whether or not one likes the intake sound, I think it's a stretch to describe it as 'drone'. Drone, in my understanding, is what happens at about 2,000 rpm under load when the exhaust note hits the resonant frequency of the car. All exhausts do it a bit, including PSE, but I don't think intake noise causes it (?) If you want no drone whatsoever, don't cruise in seventh gear with PSE or indeed any other exhaust switched on.