Need Gauss spec

[audiorep2]

A friend of mine is building a bass guitar cab for me , using 2 Gauss 5842 15" speakers.
He needs to know the " x max ", or maximum cone excursion. Can any of you fellows help ?
Stuart in Nova Scotia

[Earl K]

The 5842 is an old Gauss model number .

By 1979 Gauss had changed their numbering system redesignating the 5842 as the 4582 model .

My later info for the 4582 shows that it's meant for horn loading ( this designation is mentioned in the old literature ) .

It had high efficiency at @ 100 db ( at a meter ) .

As a consequence of it's design parameters ( short coil - most of it in the gap ), its Xmax is very low at only .040 " ( 1.02 mm ) .

Other TL parameters are ;

Qms = 2.1
Qes = .24
Qts = .21
Vas = 8.8 cu'

- It's not going to model well due to the extrememly limited Xmax figure .
- I'd model it for reasonable FL extension ( say down to 50 hz ) realizing that this size box will allow cone travel to easily exceed xmax figures, therefore driving the woofer into distortion . For bass guitar this might sound fine .

<> cheers

PS : At this point in time, theres a good possibility that the woofer has been reconed into something else / one can't tell by looking at the cone since Gauss used a similar looking ribbed cone on 3 different models .