"Stephen McLuckie" wrote in message
...
TTT wrote:
"Stephen McLuckie" wrote in message
What's the speaker model and what are the basic parameters?

It's Eminence Cannabis Rex

That particular driver has quite a good reputation.

Apart from the fact that virtually nobody builds reflex cabs for electric
guitar, a Qts of .64 does not really lend itself to a reflex design. It's
too high. Putting this driver in a 150 litre box will give you a flat
response down to 60Hz, which you really don't need - or want.

I put the parameters through Eminence's own box design software and it
suggests anything between 15 and 50 litres for a sealed cab. 25 litres
looked quite good with a Qtc of .82. It's certainly quite forgiving in
terms of box size.

Eminence says it is suitable for both sealed and open back cabinets.
Here's a guitar amp that uses one:
http://www.carramps.com/hammerheadmk2.html#specs.
The site contains a sound sample (which is quite impressive) and the
dimensions of their 1 x 12 cabinet using that driver. You could do a lot
worse than simply copying that particular box.

So if I put a driver like this in a 150 litre box, what problems do I
encounter? Why are guitar speakers put into small boxes? To control the
amount of bass they produce?
How will my 150 litre box sound? It's already nearly finished, what kind of
results are you predicting I will get? If it is too bassy I will remove the
bass reflex holes and then I will have a 150 litre sealed cab. How do you
think it will work that way?

From my experience, normal guitar cabs sound like they lack in bass
response. They are tight, and clear, I want something with a bit more bass.
What should I go for?

Many thanks for the good discussion and helpful answers in this group

TTT