3rd cab: volume gain?

[coyoteboy]

Skimmed the FAQ's and sticks, so if I missed the answer there, apologies.

If I read correctly, the second identical cab, presuming wattage about doubling, nets about 6db, yes?

What of the third identical speaker? Is it 3db, or even less?

Yes, I have a 2ohm capable amplifier.

Thanks in advance!

[billfitzmaurice]

Originally Posted by coyoteboy

What of the third identical speaker?

Roughly 4dB.