Bi-amped TL question

[Hamish]

I've been thinking about making a bi-amped TL using 2 seas 8" drivers (CA21RE i think they are) and a millenium tweeter. One woofer doing below 300Hz, the other up to 3000Hz or there abouts. Now, do i model it as if it were one driver or two?

 

[GM]

Two.

GM

 

[planet10]

two.

You are driving the 0.5 8 with one amp and the other+ T with the other?

dave

 

[Hamish]

Yep. That was the plan, 100w for below 300Hx, 100w for all above (woofer + tweeter). I was thinking that it should be modeled for one driver, but i could be wrong

 

[Hamish]

OK, so two. But i would have thought you were only tuning it for the resonant frequency of one driver?

 

[planet10]

Yep. That was the plan, 100w for below 300Hx, 100w for all above (woofer + tweeter). I was thinking that it should be modeled for one driver, but i could be wrong

So it is a 3-way and not a 2.5 way? With 2 midbasses the same, 2.5 seems to make more sense.

dave

 

[GM]

>100w for below 300Hx, 100w for all above (woofer + tweeter). I was thinking that it should be modeled for one driver, but i could be wrong

====

Do what?! Are you saying that only one driver will be used below 300Hz and that the other 8" will be in its own cab? If so, then you're right, but as Dave noted, this isn't a good plan. If they're both open in the TL, i.e. a 2.5 way, then you need to double the pipe's cross sectional area to account for the extra driver.

GM