Production
Matsumoku 
1984 to 1987
St. Louis Music (SLM) Korea 
1989 to 1990
Model Names & Numbers
Spectrum I |
X120
|
Spectrum IA |
WE2400 |
Spectrum II
|
XA1220
|
Spectrum III |
XA1330 |
Spectrum Basic |
X120
|
Spectrum DX |
X140 |
Spectrum FX |
X199 |
Spectrum GT |
X185
|
Spectrum LX |
X198
|
Spectrum MX |
X139 |
Spectrum S |
. |
Spectrum Special |
X120 |
Spectrum ST |
X135 |
Spectrum SX |
X188 |
Spectrum Series II |
. |
