| Description | File |
|---|---|
| Service Manual and Schematics for Artist Reverb and Studio Models, SA15R, A20R, A12R, A15R, A10R, 520R, S10R, S12R | §464k |
| Preliminary Operating Instructions for Super Imperial and Imperial Line Solid State Amplifiers with Reverb and Vibrato | §154k |
| Standel Service Information - Circuit Description | §28k |
| Test Procedure - Imperial and Custom Models | §20k |
