The Pioneer SX-450 is a 15 watt FM/MW stereo receiver featuring FM muting, tape monitor switch and provision for 2 pairs of speakers.
The unit employs a direct-coupled OCL circuit in the power amplifier with a first-stage differential amplifier.
High FM sensitivity is ensured by a low noise FET in the front end with a frequency linear 3-gang variable capacitor.
Tuning range: FM, MW
Power output: 15 watts per channel into 8Ω (stereo)
Frequency response: 20Hz to 60kHz
Total harmonic distortion: 0.5%
Damping factor: 25
Input sensitivity: 7.5mV (mic), 2.5mV (MM), 150mV (line)
Signal to noise ratio: 70dB (MM), 90dB (line)
Output: 150mV (line), 30mV (DIN)
Speaker load impedance: 4Ω (minimum)
Semiconductors: 1 x FET, 3 x IC, 28 x transistors, 15 x diodes
Dimensions: 448 x 141 x 307mm
Accessories: FM T-type antenna