Aria Pro II Avante 6-String Fretless

Made - 1995, the model I have is the AVB-SB-06FL bass which is a 6-string Fretless. It has an Ash body, Maple neck and an ebony fingerboard. It has with 2 Seymour Duncan Baselines pickups, active electronics, A BTR-05 Tailpiece. The Bass is 3 Tone Starburst with Black Hardware. Being 6 string, the neck is fairly wide but very very comfortable. Volume, Tone, cut & boost are all controlled by 2 pots, each with a center and outer control(total of 4 knobs).

This is an all around bass, Rock/Funk/Jazz etc. Being fretless does require more accuracy when playing specific songs in order to keep that unique fretless sound hidden. And being 6 stringed means slapping, thumping, plucking whatever you choose to call it, requires good aim, or you'll wind up hitting the wrong string (Some very interesting - how'd he do that errors can occur too) :)
I mostly use Hartke amps, but the actives in the bass make up for most shortcomings in any amp. Those Seymour's real move air on the other end.
There is an annoying hum depending on the amp's grounding, but I have also noticed it in headphones, until I touch the strings, then I become ground, only shocked once though, bad house wiring.
I really can't pigeon-hole the bass on sound, it covers the full spectrum, but my MM Sterling appears to be a tad brighter - might be the strings though.
The bass is comfortably on stage and in the studio.
I love this bass!

Factory setup was great, but then I custom ordered the bass, Not many bassist seem to want a 6 string fretless.
Everything about the bass was fine, except.....it seemed to detune a lot. After the first month (and several him-bare-assing moments), I returned the bass to the dealer, who advised they would check the instrument out, they ended up sending it back to Aria, who said there was nothing wrong with the bass. It never detuned after that, hmmmmm.
I still love this bass

I have heard, I play very agressively, and many bassists seem to want to avoid letting me play their instruments. The say I torture a bass. I'll seek help soon, really. This bass is very tough, but I'm not sure it will last at the rate in which I play it. The Ebony neck has string impressions on it and the pickups have some chipping too. I have the action very, very low and the pickups may need to be lowered to get them out of my way. Maybe tomorrow I'll do it. But then again, the neck on any guitar is a consumable an replacing pickups is not unheard of either. Everything else is in mint condition except for the outer-ring of the bottom pot, it slips.
The bass is very dependable, but IT EATS BATTERYS, always keep an extra with any active instrument.
I have never played a gig without a back-up, pooh occurs.

I have never spoken to customer support, but they sent my bass back quickly when I first complained about a problem with the tuners. And I haven't had another problem with it.

I have been playing about 24 years, and have more equipment than I can remember, but I do have, a 1980's Fender Jazz, a very old Rick 4001, a 1985 Ibanez RoadStar II, one custom made Shelton bass, a MusicMan Sterling and the Aria. I have owned a host of other basses, one in particular holds a special memory, an 1970 Fender P-bass which was stolen during a gig. Remember, always have a backup instrument. It's not always your instrument that fails, sometimes it's someone else's integrity and decency.
I first played the fretted version of the Aria, and requested a fretless version, I wanted to expand my abilities, it will make you a better (more precise) bassist IMHO (In My Humble Opinion)
I love everything about this bass, only my Sterling gets equal play now. One wish though, that there was a way to turn the active pickup-off. Someone offered to put in a switch, but I declined, I'd rather leave the bass stock, if it's not broke, don't fix it.