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Old September 20th 08, 01:32 PM posted to uk.rec.audio
Don Pearce
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Default Bassreflex design: port diameter is larger than speaker, willit work?

TTT wrote:
"Stephen McLuckie" wrote in message
et...
TT wrote:
Hi

I'm building a 1x12" speaker cabinet to use with my guitar amp head. I
have all the thiele/small parameters for my speaker, and have used a
program called BandBox Pro to design the speaker cabinet. I have also
used a program called WinIsd to check and both programs give me similiar
results.

What's the speaker model and what are the basic parameters?


It's Eminence Cannabis Rex

fs: 96Hz
6.56
Le: 0.44mH
Qms: 9.28
Qes: 0.69
Qts: 0.64
Vas: 50.0 litres
Vd: 45cc
Cms: 0.11mm/N
BL: 11.8 T-M
Mms: 24 grams
EBP: 139
Xmax: 0.8mm
Sd: 558.6cm2

8ohm, 50W, sensitivity 102.

TTT



With an Xmax of only 0.8mm, you really do need to keep the bass out of
this speaker. I haven't come across it before - being from the UK,
Celestion has always been the first choice.

d