The mid-1960s (particularly 1965) saw a huge rise in the interest in guitars, with thousands of new players picking up an instrument for the first time - entry-level guitars were flying off the shelves! So it was no wonder that established brands like Gibson wanted to capture some of this market. Of course, a guitar of Gibson's quality could not be produced within this price bracket, hence the (re-)launch of the Kalamazoo brand in 1966. The Kalamazoo bass guitar, or Kalamazoo KB/KB1, was first offered in 1966. Like Gibson and Epiphone guitars, and as the name suggests, the Kalamazoo KB basses were manufactured in Kalamazoo, Michigan; but not at the main Gibson plant. You can read more about Gibson's relationship with Kalamazoo in this article about Gibson product alignment.
Gibson redesigned the Kalamazoo KB bass and KG guitars in late 1966 to the increasingly popular SG body style. The headstock shape was also slightly rounded off, but all hardware/components are unchanged. Functionally they are exactly the same, and the SG shape seems to have been more popular. Compare this Kalamazoo bass to the earlier Mustang-style KB bass.
These are very cool basses, often overlooked, except by vintage guitar collectors. True they don't have a highly polished hardwood body of a 'real' Gibson but they do have much of the tone, and a lot of the looks. The power of the Gibson EB humbucker is still there, and the neck is very comfortable. You feel like you are playing a Gibson EB-O of the same era. Gibson quality construction, and components make for a very playable bass.
The basses were shipped in moderate numbers in 1967; Glacier White instruments made up less than a quarter of that years total (see Kalamazoo KB bass shipping totals). This bass is one of 501 white KB basses shipped that year, and one of 6287 Kalamazoo basses shipped in total, 1966-1969.
The neck/fretboard were of Gibson's usual quality on these basses. The truss rod is the same as any Gibson, adjustable at the headstock end of the neck, requiring a 5/16" hex spanner to adjust.
It is interesting to note the internal body cavity contain impressions for four pots and a switch (aswell as the humbucker), suggesting the (unrealised) possibility of a two-pickup Kalamazoo bass (an equivalent to the Gibson EB-3) without the need of a different body.
In 1967, the Kalamazoo KB bass had a list price of $119.50.
$1200