| Model | Description | Introduced | Discontinued |
| JC-1 | Cartridge Preamplifier | 1972 | 1975 |
| JC-2 | Preamplifier | 1974 | 1977 |
| LNP-2 | Preamplifier with Level Meters | 1975 | 1982 |
| JC-1DC | Battery operated Preamplifier | 1976 | 1977 |
| JC-1AC | Cartridge Preamplifier | ||
| LNC-2 | Modular Electronic Crossover | 1976 | 1993 |
| ML-1 | Preamplifier | 1977 | 1980 |
| ML-2 | 25 Watt Monophonic Power Amplifier | 1977 | 1986 |
| ML-3 | 200 Watt/Channel Dual Monaural Power Amplifier | 1979 | 1987 |
| ML-6 | Monophonic Preamplifier | 1979 | 1980 |
| ML-7 | Modular Preamplifier, L2, L3 and L3A versions | 1980 | 1985 |
| ML-5 | Open Reel Tape Deck | 1981 | 1986 |
| ML-5A | Master Open Reel Tape Deck | 1981 | 1986 |
| ML-6A | Modular, Mono Preamplifier, L2, L3 and L3A versions | 1981 | 1985 |
| ML-10 | Preamplifier with Internal Power Supply | 1981 | 1984 |
| ML-9 | 100 Watt/Channel Stereo Power Amplifier | 1981 | 1988 |
| ML-12 | Basic Preamplifier with 2 Volume Controls, no Balance | 1982 | 1984 |
| ML-11 | 50 Watt/Channel Stereo Power Amplifier | 1982 | 1989 |
| ML-10A | Preamplifier (Update of ML-10) | 1984 | 1988 |
| ML-12A | Preamplifier (Update of ML-12) w/ PLS-124 Power Supply | 1984 | 1989 |
| ML-7A | Preamplifier (Update of ML-7) | 1985 | 1989 |
| ML-6B | Preamplifier (Update of ML-6A) | 1985 | 1989 |