I have played electric bass for over 20 years. A few years ago I started getting the itch to have an upright but I did not want to plunk down a lot of money on something I wasn't even sure I would enjoy.
One day I was walking around in a flea market and saw a brand new Cremona upright bass and to my horror the price tag said something like $575 dollars (with gig bag) so I felt the need to bring it home with me before someone else saw it.
Once I got it home and tuned up I tried playing it a bit and realized that the factory setup was terrible. I swear the strings were over an inch and a half off the neck at the bridge end.
As far as I can tell the neck and fingerboard are one solid carved piece of wood, the nut is also carved out of the same piece of wood and is not a separate piece. (It starts to become obvious how the bass was so much cheaper than any I had seen before.)
First order of business was to get the string height at the nut down to a humane level, the G slot was almost a quarter of an inch from the surface of the neck!
Thank god for dremel tools and model files! I lowered the slots until the strings sat about a business card or two's width from the fingerboard.
Just that bit of change made it immensely easier to play.
Then I went to work on the bridge, unfortunately instead of cutting the bridge down some I just cut these long slots in under each string to lower the action there and managed to make the action too low.
So, having ruined the bridge in my over-confidence, I set to searching the internet for another bridge, I found Bob Gollihur's place:
http://www.gollihur.com/kkbass/index.html
and ordered a new adjustable bridge and a nice set of strings.
By the way, while I was on the net I came across all these people talking about how terrible Cremona basses were, but I honestly can only guess that they had the same factory setup problems as I had, but not the nerve (or craziness?) to try to fix the problems themselves.
I installed the new bridge when it came and got the action right. Then I put on the new strings and that probably made the major difference in the sound.
So fast forward a few years....
I have been pretty happy with my bass and playing lots of gigs with it, but there were always some buzzes halfway up the neck on the G string, so once again I got this crazy urge to try to fix it myself, after spending a while checking the neck with a straight edge I found where the problem was and went to work with a long piece of belt sander belt nailed to a flat board and various knives and pointy things.
The buzzing problem seemed to mainly be related to the thickness of the "ebonized" paint on the fingerboard. Once I scraped down to bare wood the buzzing went away.
In retrospect this mass produced chinese Cremona really was a piece of crap when I got it and I would not recommend that anyone buy one unless they have 1. A good luthier nearby that can set it up correctly 2. Feel they can set it up themselves.
I don't think that the Cremona basses deserve the reputation they seem to have, but it is obvious that the factory setup guys should be punished by spending eternity trying to play one right off the assembly line...
Once set up, this bass makes a great bang around bluegrass/folk/rock bass.