BillFitzmaurice.info

Hello all, its been a while.

I'm finally setting out to build a 2nd T48 to couple with my first 30" wide one.

The first was loaded with 2 x12s for lower impedance when running off of 12volt amps. In the end i've only used it occasionally in the 12volt setup and more often with mains power amps indoors.

I want to build my second T48 with a single 15", the recommended Kappalite 3015LF and if possible build it 29" wide instead of 30" (just a bit easier through my doors, and into the van).

Will either of these differences cause problems when coupled with my original Cab with a V-plate?

Also, is it correct that I can already lower the highpass for my subs to 35 hz when there are two of them at this size - As the mouth area is already large enough?

Nice to be back planning and building speakers

Ta,

Welcome back!

Bill will have to verify, but I seem to recall him saying that the phase response of the same cab, but with different drivers is generally okay to use together and that any mismatch in phase would be negligeable.

I'm just going from memory, but didn't we find out that the Vd of the two 12's you used in the last T48 equaled more than a 3015LF? Maybe I'm getting the memory mixed up with someone else's project.

The only issue I see with going 29" wide is easily solvable... When v-plating them you'd just have to put a spacer on one side. Otherwise, I don't see too much of an issue going an inch slimmer.

How has the one been doing for you? Obviously got you wanting more, but...