The PM450 features:

• Bass, Mid, Treble slider controls.
• Balance control integrated with volume button.
• Speakers selector switches: System 1 or 2.
• Subsonic Filter, Loudness, Tape 1 Monitor switches.
• Phono 1 - Phono 2 Fader, Mixing Source/Mic controls.
• Input selector: Tuner, Phono, AUX/Tape 2/Copy 21.
• Power Level Meter (Watts): 0.01-160 (4 Ohm) - 0.005-80 (8 Ohm).
• Dimensions: Width = 41.7 cm Height = 12.3 cm Depth = 33.5 cm.
• Weight: 6.5kg

• Output power 1kHz:
4 ohm DIN 65 w
4 ohm RMS 60 W
8 ohm DIN 57 W
8 ohm RMS 51 W
• THD with 8 Ohm load: 0.05%.
• Intermodulation distortion: 0.05%.
• Damping factor: 75.
• AUX input:
Bandwidth (-3dB) 10-50000Hz
Signal/Noise Ratio 96dB
Impedance 28kOhm
Sensitivity 150mV
• Mic preamp input:
Impedance 9kOhm
Sensitivity 2.3mV