The idea was to put in a header that meet the same specifications: lightness, efficiency and robustness.
I put a 9 to 4 º due / 600w, but one does not count extend its stack, it is rather an advantage: it is said that "every watt going" ...
After testing in a MarkBass SA450 head, whose qualities are highly versatile and neutral sound, I could appreciate its pure sound quality: pretty neutral, maybe a little less clear that Mark Bass, and an adjustable tweet. The 12-inch speakers provide good sound spectrum and diffuse well. I finally sold the MB to get me a TB closest genre I play, which has a saturation lamps.
Vents complete this device very well and make this a very cabinet. A good distance from the wall, slightly raised, we do not need to play hard to be heard, which makes less strenuous rehearsals with a single 15-inch one is forced to push to distinguish notes.
The nice surprise came from his response to the game: with saturation, and depending on how low the strings are attacked, there is a real response in the sound. Playing gently with a "heavy" amp (Orange, Ampeg), it has a really sharp in sound, great bass present but at the same time distinct.
I used 3 years. My group when I was bassist stopped, and the cabinet is now under a sheet (I passed on the guitar). But I do not resell, it is a valuable tool which I do not separate myself. Previously, I tested the Mark Bass (more expensive and neutral rare finally 2x12) and Ashdown, friendly, cheap and colorful (but seemed very effective, "ate" sound), and the Hartke (which removes the saturation).
For rock / punk-rock, with a game in Entwistle, that is to say, harmonic and varied, it is ideal. For not very expensive and not very heavy, hyper-efficient cabinet, sensitive game, a very versatile tone, you get the equivalent of a much more expensive ride, heavy and bulky.
So I put 10 ...