The Bass model number pages

R. Jones' Conn model number site doesn't give a bass model number index. This is an attempt to construct one. I have included an extra column to indicate the year(s) when the instrument was (at least) in use. If both the "Year Introduced" and "Year Discontinued" column is filled in, the "Years Used" column is left blank (no need stating the obvious). Italics indicates "educated guess".

The following list is by no means complete or even correct. If you find an error, or have a bass produced before roughly 1970 (see serial number index) with a model number that doesn't appear on this list or is produced outside the years indicated on this list, please let me know (see main page for e-mail).

The sousaphone model number index has been split off. You can now find it here.

Conn Basses
Model Number Model Name Year Introduced Years Used Year Discontinued
- #? Bore BBb American Model Bass - three valve front action bell up - 1899 -
- #? Bore Eb American Model Bass - 1902 -
- #? Bore Eb New Wonder Model Bass - 1902 -
- #? Bore Eb Bass Bell up Four valve top acion - 1909 -
- #? Bore New Invention Eb Standard Bass Bell Up Four valve top action - 1913 -
- #? Bore New Invention Eb Standard Bass Bell Up Four valve front action - 1913 -
- #? Bore New Invention Eb Professional Bass Bell Up Four valve top action - 1913 -
- #? Bore New Invention Eb Professional Bass Bell Up Four valve front action - 1913 -
- #? Bore New Invention Eb Giant Bass Bell Up Four valve top action - 1913 -
- #? Bore New Invention Eb Giant Bass Bell Up Four valve front action - 1913 -
- #? Bore New Invention BBb Monster Bass Bell Up Four valve top action - 1913 -
- #? Bore New Invention BBb Monster Bass Bell Up Four valve front action - 1913 -
- #? Bore New Invention CC Orchestra Grand Bass Bell Up Four valve front action - 1913 -
- #? Bore New Invention BBb Orchestra Grand Bass Bell Up Four valve front action - 1913 -
- #? Bore Perfected Wonderphone Eb Standard Bass Bell front three valve top action - 1913 -
- #? Bore Perfected Wonderphone Eb Standard Bass Bell front four valve top action - 1913 -
- #? Bore Perfected Wonderphone Eb Standard Bass Bell front three valve front action - 1913 -
- #? Bore Perfected Wonderphone Eb Standard Bass Bell front four valve front action - 1913 -
- #? Bore Perfected Wonderphone Eb Giant Bass Bell front three valve front action - 1913 -
- #? Bore Perfected Wonderphone Eb Giant Bass Bell front four valve front action - 1913 -
- #? Bore Perfected Wonderphone BBb Monster Bass Bell front three valve front action - 1913 -
- #? Bore Perfected Wonderphone BBb Monster Bass Bell front four valve front action - 1913 -
- #? Bore Eb Bass Bell Up Four valve top action (Gov't model) - 1918 -
- #? Bore BBb Bass Bell Up Four valve top action (Gov't model) - 1918 -
2J #? Bore Eb Standard Top Action Upright Bass Bell Up (three valves) - Low Pitch - 1919-1931 -
2J #8 Bore CC Tuba - 1973 -
3J #? Bore Eb Standard Top Action Upright Bass Bell Up (three valves) - High & Low Pitch - 1919-1927 1929
4J #? Bore Eb Standard Front Action Upright Bass Bell Up (three valves) - Low Pitch - 1919-1934 -
5J #? Bore Eb Standard Front Action Upright Bass Bell Up (three valves) - High & Low Pitch - 1919-1927 1929
6J #? Bore BBb Junior Bass Upright Bell (three valves) (LP) 1926 1926-1934 -
7J #? Bore BBb Junior Bass Upright Bell (three valves) (HP) 1926 1927 1929
10J #? Bore Eb Top Action Bell Up (three valve) - Low Pitch - 1924-1927 1929
10J #9 Bore BBb Upright Tuba - 1962-1971 -
11J #? Bore Eb Top Action Bell Up (three valve) - High & Low Pitch - 1924-1927 1929
11J #7¾ Bore BBb Front action Bell Up (three valves) - 1958-1960 -
12J #? Bore Eb Front Action Bell Up (three valve) - Low Pitch 1921 (reinstated 1947) 1924-1926, 1955-1957 1926 (reinstated to 1957)
13J #? Bore Eb Front Action Bell Up (three valve) - High & Low Pitch - 1924-1926 1926
14J #7 Bore Director Eb Bass - 1955-1964 1965
16J ? Bore Bell Front (three valve front action) EEb Recording Bass - 1937-1939 -
18J #? Bore Eb Giant Top Action Bell Up (three valve) - Low Pitch - 1919-1926 1926
19J #? Bore Eb Giant Top Action Bell Up (three valve) - High & Low Pitch - 1919-1926 1926
20J #? Bore Eb Giant Front Action Bell Up (three valve) - Low Pitch - 1919-1927 1929
20J #11 Bore Artist Bell Front (three valve top action) BBb Recording Bass - 1934-1980's -
21J #? Bore Eb Giant Front Action Bell Up (three valve) - High & Low Pitch - 1919-1927 1929
21J #11 Bore Artist Bell Up BBb Recording Bass - 1958-1971 -
22J #11 Bore Artist Bell Front (three valve front action) BBb Recording Bass - 1934-1941 -
24J #? Bore Eb Giant Front Action Bell Up (four valve) - Low Pitch - 1924-1926 1926
24J #11 Bore Artist Bell Front BBb Recording Bass (four valve top action) - 1937-1971 -
25J #? Bore Eb Giant Front Action Bell Up (four valve) - High & Low Pitch - 1924-1926 1926
25J #11 Bore Artist Bell Up BBb Recording Bass (four valve) - 1957-1971 -
26J #10½ Bore BBb Monster Top Action Bass Bell Up (three valves) - Low Pitch - 1919-1931 -
26J #11 Bore Artist Bell Front BBb Recording Bass (four valve front action) - 1937-1941 -
27J #10½ Bore BBb Monster Top Action Bass Bell Up (three valves) - High & Low Pitch - 1919-1927 1929
28J #10½ Bore BBb Monster Front Action Bass Bell Up (three valves) - Low Pitch - 1919-1927 1929
29J #10½ Bore BBb Monster Front Action Bass Bell Up (three valves) - High & Low Pitch - 1919-1927 1929
30J #? Bore BBb DeLuxe Recording Bass Bell Front (three valves top action) 1932 1934 -
32J #10½ Bore BBb Monster Front Action Bass Bell Up (four valves) - Low Pitch - 1924-1927 1929
32J #? Bore BBb DeLuxe Recording Bass Bell Front (three valves front action) 1932 1934 -
33J #10½ Bore BBb Monster Front Action Bass Bell Up (four valves) - High & Low Pitch - 1924-1927 1929
34J #? Bore BBb DeLuxe Recording Bass Bell Front (four valves top action) 1929 1929-1934 -
36J #? Bore BBb DeLuxe Recording Bass Bell Front (four valves front action) 1929 1929-1938 -
44J #? Bore Bb New Wonder Top Action Upright Bass Bell Up (three valves) - Low Pitch - 1924 1926
45J #? Bore Bb New Wonder Top Action Upright Bass Bell Up (three valves) - High & Low Pitch - 1924 1926
46J #? Bore Bb New Wonder Front Action Upright Bass Bell Up (three valves) - Low Pitch - 1926 -
47J #? Bore Bb New Wonder Front Action Upright Bass Bell Up (three valves) - High & Low Pitch - 1926 -
48J #? Bore CC New Wonder Phonograph Bass Bell Front (four valves) - Low Pitch - 1924-1926 1926
80J #? Bore BBb Wonderphone Recording Bass Bell Front (three valve) - Low Pitch - 1924-1934 -
81J #? Bore BBb Wonderphone Recording Bass Bell Front (three valve) - High & Low Pitch - 1924-1927 1929
82J #? Bore BBb Wonderphone Recording Bass Bell Front (four valve) - Low Pitch - 1924-1927 1929
83J #? Bore BBb Wonderphone Recording Bass Bell Front (four valve) - High & Low Pitch - 1924-1927 1929
84J #? Bore CC Symphony Bass Bell Up (four valve) - Low Pitch - 1926 -
85J #? Bore CC Symphony Bass Bell Up (four valve) - High & Low Pitch - 1926 -
86J #? Bore CC Symphony Grand Bass Bell Front (four valve) - Low Pitch - 1926 -
87J #? Bore CC Symphony Grand Bass Bell Front (four valve) - High & Low Pitch - 1926 -