For a portable jazz sound, the Zeta Crossover occupies a unique niche. Worth your time to consider.
Model Year: 2000
Price: $2100.00 (new)
Where Obtained: Pioneer Music
The Zeta Crossover is a combination between an upright fretless and an over-the-shoulder fretless. Unique feature is that the fingerboard is curved like and upright - I can actually apply a bow to this instrument for a rumbling sub-floor drone.
Another great thing is that the peg unscrews, the "bout" comes off the back, and the whole thing fits into a gig bag small enough to fit in the overhead bin of an airplane.
The Zeta Crossover uses a piezo-electric in the bridge - through the right amp, you get a nice upright sound.
If you're a travelling stand-up bassist - this is a great option.
The neck is narrow, but playable. This is a Jazz instrument. You're not going to be able to pop-ala-wooten - try slapping, and you're going to be replacing the finger board. But for a nice warm jazz line - it's great.
I'm noticing that it tends to break up at lower frequencies when I'm pulling on the strings - but that may be a result of my crappy amplifier.
I've dropped this off the stage, which broke the bout and cracked the neck - but I was able to play it anyways. It's been great.