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FLAW in test!! Subwoofer direction

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Nousaine

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FLAW in test!! Subwoofer direction

Eddie Runner wrote:

AGAIN!
Your using the CORVETTE as a reference!!

FLAW FLAW FLAW

Nousaine wrote:

EWe can't have an intelligent discussion Eddie because you don't understand
the
acoustics in the car.

In a vehicle with the interior volume of a C4 or C5 Corvetter the standing
wave
there is cabin gain (pressure zone reinforcement) below 60 Hz @ 12 dB per
octave as frequency falls because that is the frequency of the lowest axial
mode.

The standing wave region occurs between 60 and 600 Hz. Above that the
wavelengths are short enough that standing waves are statistically dense.

Why is that a flaw. It's merely an example of a small car. But I've done
transfer function measurements of a Taurus, Chevy X-Cab, Aerostar, Integra,
Bonneville, Spirit, Camaro, Saab which have been used for magazine speaker
tests.

The c5 Corvette Coupe is acoustically quite typical of compact and subcompact
vehicles and has more aggressive cabin gain than the larger vehicles (30+ dB @
10 Hz.) It also has these wonderful large holes with planty of rear space in
the front doors where the Bose systems go.

The Z06 has a fixed roof which doesn't change the interior space but makes it
too difficult to get subwoofer boxes in and out.

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