| MODEL | 120186 | 120187 | 120188 | 120189 |
| Rated Power Output | 120W | 240W | 350W | 500W |
| Output | 100V or 4 - 16 ohm switchable | 100V or 4 - 16 ohm switchable | 100V or 4 - 16 ohm switchable | 100V or 4 - 16 ohm switchable |
| THD | 60 - 16,000 Hz, +/- 3dB | 60 - 16,000 Hz, +/- 3dB | 60 - 16,000 Hz, +/- 3dB | 60 - 16,000 Hz, +/- 3dB |
| Frequency Response | Less than 0.5% at 1kHz (1/3 Rated Power) | Less than 0.5% at 1kHz (1/3 Rated Power) | Less than 0.5% at 1kHz (1/3 Rated Power) | Less than 0.5% at 1kHz (1/3 Rated Power) |
| Tone Controls | Better than 80dB | Better than 80dB | Better than 80dB | Better than 80dB |
| S/N Ratio | BASS: 100 Hz (+/- 10dB), TREBLE: 10k Hz (+/- 10dB) | BASS: 100 Hz (+/- 10dB), TREBLE: 10k Hz (+/- 10dB) | BASS: 100 Hz (+/- 10dB), TREBLE: 10k Hz (+/- 10dB) | BASS: 100 Hz (+/- 10dB), TREBLE: 10k Hz (+/- 10dB) |
| Controls | All input gain, 1 treble, 1 bass, 1 mute, and power switch | All input gain, 1 treble, 1 bass, 1 mute, and power switch | All input gain, 1 treble, 1 bass, 1 mute, and power switch | All input gain, 1 treble, 1 bass, 1 mute, and power switch |
| Cooling | Internal 12VDC fan, extensive heat sinking | Internal 12VDC fan, extensive heat sinking | Internal 12VDC fan, extensive heat sinking | Internal 12VDC fan, extensive heat sinking |
| Indicators | Power indicator LED, PROT, 100V, 4-16 OHM, CLIP, SIG | Power indicator LED, PROT, 100V, 4-16 OHM, CLIP, SIG | Power indicator LED, PROT, 100V, 4-16 OHM, CLIP, SIG | Power indicator LED, PROT, 100V, 4-16 OHM, CLIP, SIG |
| Power Consumption | Current limiter, short circuit and thermal protection circuits | Current limiter, short circuit and thermal protection circuits | Current limiter, short circuit and thermal protection circuits | Current limiter, short circuit and thermal protection circuits |
| Protection | 170W | 340W | 500W | 720W |
| Power Requirments | 220-240V AC, 50/60 Hz | 220-240V AC, 50/60 Hz | 220-240V AC, 50/60 Hz | 220-240V AC, 50/60 Hz |
| Dimensions | 44.5(H) x 483(W) x 330(D) mm | 44.5(H) x 483(W) x 330(D) mm | 44.5(H) x 483(W) x 330(D) mm | 44.5(H) x 483(W) x 330(D) mm |
| Built-in Dimensions | 1 U rack 19 inch | 1 U rack 19 inch | 1 U rack 19 inch | 1 U rack 19 inch |
| Net Weight | 5.6kg | 5.6kg | 5.7kg | 5.7kg |
| Finish | Panel: Aluminium plate, black Case: steel plate, black | Panel: Aluminium plate, black Case: steel plate, black | Panel: Aluminium plate, black Case: steel plate, black | Panel: Aluminium plate, black Case: steel plate, black |
