| 1525201 | STK4192II | AF Power Amplifier (Split Power Supply) (50W + 50W min, THD = 0.4%) | SANYO |
| 1525202 | STK4192V | Features of the IMST Hybird ICs | etc |
| 1525203 | STK4194MK2 | Features of the IMST Hybird ICs | etc |
| 1525204 | STK4194MK5 | Features of the IMST Hybird ICs | etc |
| 1525205 | STK4195MK2 | Features of the IMST Hybird ICs | etc |
| 1525206 | STK4195MK2 | STK Audio Power Amplifier | etc |
| 1525207 | STK4195MK5 | Features of the IMST Hybird ICs | etc |
| 1525208 | STK4196X | Features of the IMST Hybird ICs | etc |
| 1525209 | STK4199MK2 | 3-channel AF Power Amplifier (+- Dual Power Supply) 25W+50W+25W | SANYO |
| 1525210 | STK4200K5 | 60W x 2-channel power amplifier | SANYO |
| 1525211 | STK4200MK2 | 2ch./1packge, +- Power Supply 6W/ch. ~ 100W/ch. THD=0.4% | SANYO |
| 1525212 | STK4200MK5 | 2ch./1packge, +- Power Supply 6W/ch. ~ 100W/ch. THD=0.08% | SANYO |
| 1525213 | STK4201 | 2ch AF Power Amplifier (Split Power Supply) (60W + 60W min, THD = 0.4%) | SANYO |
| 1525214 | STK4201 | 2ch./1packge, +- Power Supply Built-in Muting Circuit 25W/ch. ~ 70W/ch. THD=0.02% | SANYO |
| 1525215 | STK4201II | 2ch AF Power Amplifier (Split Power Supply) (60W + 60W min, THD = 0.4%) | SANYO |
| 1525216 | STK4201V | AF Power Amplifier (Split Power Supply) (60W + 60W min, THD = 0.08%) | SANYO |
| 1525217 | STK4201X | 2ch./1packge, +- Power Supply Built-in Muting Circuit 25W/ch. ~ 70W/ch. THD=0.02% | SANYO |
| 1525218 | STK4204MK2 | Features of the IMST Hybird ICs | etc |
| 1525219 | STK4204MK5 | Features of the IMST Hybird ICs | etc |
|
| 1525220 | STK4205MK2 | Features of the IMST Hybird ICs | etc |
| 1525221 | STK4205MK2 | STK Audio Power Amplifier | etc |
| 1525222 | STK4205MK5 | Features of the IMST Hybird ICs | etc |
| 1525223 | STK4209MK2 | STK4159MK2 | Unknow |
| 1525224 | STK4210K5 | 70W x 2-channel power amplifier | SANYO |
| 1525225 | STK4210MK2 | 2ch./1packge, +- Power Supply 6W/ch. ~ 100W/ch. THD=0.4% | SANYO |
| 1525226 | STK4210MK5 | 2ch./1packge, +- Power Supply 6W/ch. ~ 100W/ch. THD=0.08% | SANYO |
| 1525227 | STK4211 | 2-Channel 70 W min AF Power Amplifier (Split Power Supply) | SANYO |
| 1525228 | STK4211 | 2ch./1packge, +- Power Supply Built-in Muting Circuit 25W/ch. ~ 70W/ch. THD=0.02% | SANYO |
| 1525229 | STK4211 | 2ch AF Power Amplifier (Split Power Supply) (70W + 70W min, THD = 0.4%) | SANYO |
| 1525230 | STK4211II | 2ch AF Power Amplifier (Split Power Supply) (70W + 70W min, THD = 0.4%) | SANYO |
| 1525231 | STK4211V | 2-Channel 70 W min AF Power Amplifier (Split Power Supply) | SANYO |
| 1525232 | STK4211X | 2ch./1packge, +- Power Supply Built-in Muting Circuit 25W/ch. ~ 70W/ch. THD=0.02% | SANYO |
| 1525233 | STK4214MK2 | Features of the IMST Hybird ICs | etc |
| 1525234 | STK4214MK5 | Features of the IMST Hybird ICs | etc |
| 1525235 | STK4215MK2 | Features of the IMST Hybird ICs | etc |
| 1525236 | STK4215MK2 | STK Audio Power Amplifier | etc |
| 1525237 | STK4215MK5 | Features of the IMST Hybird ICs | etc |
| 1525238 | STK4216X | Features of the IMST Hybird ICs | etc |
| 1525239 | STK4219MK2 | STK4159MK2 | Unknow |
| 1525240 | STK4220K5 | 80W x 2-channel power amplifier | SANYO |
