| MK III | | | |
| Mark II | 50w, tube, mono | | |
| Mark IIIa | 60w, tube, mono, assembled | | |
| Mark VI | 100w, tube, mono | | |
| Modified ST-70 w/Welborne Labs driver board | | | |
| SCA-35 | 17w, tube, 2ch, int | | |
| Stereo 100 | 50w, tube, 2ch | | |
| Stereo 120 | 60w, solid, 2ch, kit | | |
| Stereo 140 | 70w, solid, 2ch, reissue | | |
| Stereo 150 | 75w, solid, 2ch, kit | | |
| Stereo 150a | 75w, solid, 2ch, assembled | | |
| Stereo 160 | 80w, solid, 2ch, reissue | | |
| Stereo 200 | 100w, solid, 2ch, reissue | | |
| Stereo 300 | 150w, solid, 2ch, kit | | |
| Stereo 300a | 150w, solid, 2ch, assembled | | |
| Stereo 35 | 17w, tube, 2ch | | |
| Stereo 400 mkII | 205w, solid, 2ch, reissue | | |
| Stereo 400a | 200w, solid, 2ch, assembled | | |
| Stereo 400ma | 200w, solid, 2ch, assembled | | |
| Stereo 70 | 35w, tube, 2ch, kit | | |
| Stereo 70 Mk II | | | |
| Stereo 70 mkII | 35w, tube, reissue, black | | |
| Stereo 70 mkIIc | 35w, tube, reissue, chrome | | |
| Stereo 70a | 35w, tube, 2ch, assembled | | |
| Stereo 80 mkII | 40w, tube, reissue | | |
| Stereo 80a | 40w, tube, 2ch, assembled | | |
