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Bossa Bass Club

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Just got this wonderful Bossa 6 string in a trade.. It sounds huge (bigger & beefier than my previous Bossa 5'ers)
Maybe the added mass contributes to the tone- regardless , this thing kills!
 
i just picked up a bossa UJB-5E with either spalted or burled maple top..and not sure how old it is but it sounds and plays awesome. i have been looking for one for years.. the plain ones come up every now and then a few times a year but i haven't seen any fancy ones come up until this one..

i heard someone mention a mid toggle switch in the electronics cavity but i don't see it when i open it up. i see three little blue things that might be some kind of dial but not sure.. does anyone one know if one of these is the mid freq toggle? the dial has a tinny arrow but looks like it has a a whole range it can possibly be turned to? haven't tampered with it though..

If you sell this please lmk
 
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I just stumbled across this thread. Here is, to my knowledge the 1st Bossa to come into the US. I purchased it in 91 (I think) at The Bass Centre in LA. There were 2 of them, this one and a white one. The guys at The Bass Centre said the Japanese luthier was trying his product in the USA to see if there was any interest. I went there with the sole intent of buying an F Bass. But after playing every guitar in the place 2 or 3 times, I kept coming back to this one. You'll notice this one does not have any pickup switch and has the original Urban Jungle Bass headstock logo. Also, no serial number. I'm not sure if they started numbering them later. There is some minor finish chipping on the bridge pickup screw holes. It took about 25+ years of playing to get that. I am curious if anyone else has some of the issues I've noticed. The pickup output seems very low. If I go to an open mic and plug in to the house amp, I have to turn it up considerably to get the same level the last person had. A good friend of mine I'll call Baba bought one a few months after I got mine and said the company had reworked the preamp to address low G string output and some other things. Also, the balance of the body seems a little off in that it's not as easy to play in the upper register as some other basses. Anyway, I'm pretty sure this one
Bossa 1.JPG
Bossa Body.JPG
Bossa Headstock.JPG
is the 1st here in the states and I wanted to share a couple photos of it / her.
 
Does anyone have the pinout for the Bossa preamp's 5-pin and 8-pin connectors?

At some point on my bass, someone soldered several wires together into the preamp's IDC/JST connectors. These connectors aren't meant to have the wires soldered as you just push the wire into connector without stripping it (hence Insulation Displacement Contact). However, these connectors also don't like multiple wires per termination. The bass worked fine... I just wanted it to look better and less mangled! So I replaced them with screw terminal connectors, but stupidly forgot to make a wiring diagram before I removed the original connectors. I believe I have the 8-pin connector figured out with which wires are for the jack's tip, ring, & sleeve and the two battery leads. But I could use some clarification on which terminals on the 5-pin connector are for the pickups' hot signals, grounds, shields, and wires from the switch.

If someone has the Bossa proprietary circuit board style preamp, could you possibly post pics of the the connectors and which wire goes where?!? Thanks in advance!
 
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If it's easier than uploading a pic of the wires landing on your Bossa's pre, could someone fill in the blanks for me?

According to my pic below, which pin (1-5) has the:
- Neck p/up Shield: Pin #
- Neck p/up Green: Pin #
- Neck p/up White: Pin #
- Neck p/up Red: Pin #
- Neck p/up Black: (spliced to Switch Black)
- Bridge p/up Shield: Pin #
- Bridge p/up Green: Pin #
- Bridge p/up White: Pin #
- Bridge p/up Red: Pin #
- Bridge p/up Black: (spliced to Switch Red)
- Switch Shield: Pin #
- Switch Green: Pin #
- Switch White: Pin #
- Switch Red: (spliced to Bridge p/up Black)
- Switch Black: (spliced to Neck p/up Black)

Bossa Pre - labeled.jpg
 
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FYI - Every Bossa preamp that I have seen has multiple soldered wires to the five pin connector. This is the way they came from the factory. Also on the preamps I have seen, the connectors and the trimpots are on the component side of the board. Yours must be a newer preamp.

Since AFAIK Bossa purchased the preamps from Tune. Tune might be able to give you the correct connections.
 
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FYI - Every Bossa preamp that I have seen has multiple soldered wires to the five pin connector. This is the way they came from the factory. Also on the preamps I have seen, the connectors and the trimpots are on the component side of the board. Yours must be a newer preamp.

Since AFAIK Bossa purchased the preamps from Tune. Tune might be able to give you the correct connections.

On these other Bossa preamps with the trim pots on the component side of the PCB, how are they accessible without removing the pre? Or are the components on one side, and the main pots on the other, leaving the trim pots exposed?

I search the Googles for Bossa and Tune preamps and can't up with no info that helps me wire these pickups to the pre. Anyone have an email address or contact at Tune Japan that works?
 
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