Symposer behaviour
Symposer behaviour
(OP)
Does anyone have any idea how the "Symposer" (new gadget from Mann & Hummel) behaves acoustically? Their press releases don't really give much away - just colormaps of interior noise with & without. I was wondering if someone had actually tested one in isolation.





RE: Symposer behaviour
The symposer transfers engine-generated pulsations from the air intake into the passenger compartment, thus recreating the engine noise. Similar sound-design components have been available for some time on top-line roadsters but Mann+Hummel believes its version is the first that could be economical for more mainstream vehicles.
I believe this may be used on some Jagwars.
Could be a tube. For all I know.
Cheers
Greg Locock
Please see FAQ731-376 for tips on how to make the best use of Eng-Tips.
RE: Symposer behaviour
RE: Symposer behaviour
Big hint, for setting the knock sensor up the calibration beards use a piece of brake pipe and a coffee cup. You stick one end of the brake pipe near the head, and the other end somewhere near your ear, using the coffee cup as a resonator..
Works a treat in cars and dynos.
Cheers
Greg Locock
Please see FAQ731-376 for tips on how to make the best use of Eng-Tips.