Genz STL 12, mated with which ext speaker?

[suraci]

I auditioned a MBass F1 head, a Streamliner 900 and a GB shuttle max through a Single Shuttle 12" cab. It sounded so good through them all, I bought it, without any research!
To make it bigger/ deeper/ louder.... add another of the same kind?
Would a set of two, either on top or spread out so drummer can have one extra close, not deepen the bass response?

OR match it to a deep cab? Many here say the same cabs are best. If a deeper ext cab, wouldn't bi amping be best?

[agedhorse]

A second identical cabinet would increase the sensitivity as well as the low frequency extension and the amount of power delivered by the amp. In general, adding an identical cabinet will give the most predictable results.

[suraci]

My knowledge of things like impedance, and sensitivity are lacking! What is increased sensitivity ( other than to annoying singers and bandleaders ! )?
OT Are you aware of Paul Jackson from Herbie Hancock's Headhunter band... he told me that he uses Genz Benz stuff exclusively. He said he doesn't waste time looking for this amp and that, GB works for him.

[agedhorse]

Increased sensitivity essentially means more sound volume per watt of input.

Paul Jackson is indeed a great player.