YAMAHA RBX A2-5
This might well be the bass that you've been looking for a long time. This instrument is the 5 string version of the highly acclaimed RBXA2 ultralight bass.
Features and specs are the same as in the 4 string version, but of course with an added low B (which performs quite impressively for the price, actually) and a very comfortable 600mm radius fingerboard.
If you play in long sessions, you will have thought of a light bass many times. The problem is that if you are used to the sustain of a heavy bass, you'll probably find light basses lack the punch and power you like.
Yamaha engineers have come up with an advanced technology called Alternative Internal Resonance, or A.I.R. This technology combines lightweight and resonant softwoods sandwiched between harder tonewoods creating an instrument loaded with sustain and tone while maintaining an ultra lightweight construction
With a traditional 34" scale and a nice 600mm radius, the maple neck feels really comfortable under your hand, and the rosewood fingerboard adds a natural touch to this High Tech looking instrument.
Two single coil pickups have been chosen to give this bass a clear tone. Controls are 2 Volume + 1 Tone. Turning up the neck pickup makes green L.E.D.'s around the pot light up, and so does the bridge pickup, except this time it is blue L.E.D.'s . This is again a nice cosmetic touch that really suits an innovative bass.
Note: this instruments weighs in at just 3,5kg.