#1
I've got a 450 watt 4-ohm head that is currently putting half it;s rated power into a 400W 8-ohm cab, and it;s been working out, but I'm lacking in the low end. I'm looking to add a 1x15 cab, which has raised a few questions:

1. when i add another 8 ohm cab (dropping the total resistance to 4 ohms, making the head put out 450w) is the 4x10 gonna explode?

2. any1 have suggestions on a 1x15 that will handle 450w, sound good, and not bankrupt me (i.e 300-400 bucks)?

2b. Is the Behringer head actually putting out 450w or is it over listed?

3. will the lows go to the 1x15 and mids-highs to the 4x10 by magic, or will i need some sort of external crossover?

3b. if so, what's a good one and where can i get it?
Traben Array
2x Tech21 Sansamp RBI Bass preamps
450w Power Amp
2x Gallien-Krueger 410
-
Handmade nylon-string classical guitar
-
Jackson DXMG Dinky
Line 6 Spider 2 250w combo
-
Various Lee Oskar and Honer harmonicas
-
Yamaha YPT-310
#2
1) You only need each of the cabs to handle half of the 450 watts. The power is split between them
2) No
b) Its probably putting out about 300-350 watts.
3) Not by magic, you would need a crossover. However most people don't even get one. It still sounds fine if you have the full signal going into each cabinet and some say even better.
#5
Ok, so the head Isn;t a danger to the speakers, and the crossover isn't necessary. Any good 1x15's in the 300-400 range?

P.S. I'll be able to test exactly what the amp puts out in september (i have the equipment for that at work @ school) and I'll post the Bull $#*^ -to-wattage ratio of Behringer's advertising
Traben Array
2x Tech21 Sansamp RBI Bass preamps
450w Power Amp
2x Gallien-Krueger 410
-
Handmade nylon-string classical guitar
-
Jackson DXMG Dinky
Line 6 Spider 2 250w combo
-
Various Lee Oskar and Honer harmonicas
-
Yamaha YPT-310