I came across a little Bass made by Goldtone called a Microbass
This one happens to be the Fretted ME-Bass (Solid Body Electric Model w/ a 23 inch Scale) & this has Special Strings called Thunderblacks (Black Thunder guts) which produce a really special sound that's reminiscent of a Double Bass but w/ more sustain. The bridge on this one slides back & forth (I think the Acoustic Microbass needs an upgrade to feature that) so you can get it to play in tune with the Steel Core Flatwound Strings that they make model MBLS.
This one happens to be the Fretted ME-Bass (Solid Body Electric Model w/ a 23 inch Scale) & this has Special Strings called Thunderblacks (Black Thunder guts) which produce a really special sound that's reminiscent of a Double Bass but w/ more sustain. The bridge on this one slides back & forth (I think the Acoustic Microbass needs an upgrade to feature that) so you can get it to play in tune with the Steel Core Flatwound Strings that they make model MBLS.