Essentially identical in performance, the SX-7730 was the European-market version with a distinctive black faceplate, while the SX-737 was aimed at the US Market, featuring the classic silver finish.
Specifications
Tuning range: FM, MW
Power output: 35 watts per channel into 8Ω (stereo)
Frequency response: 15Hz to 40kHz
Total harmonic distortion: 0.5%
Damping factor: 40
Input sensitivity: 2.5mV (mic), 2.5mV (MM), 150mV (DIN), 150mV (line)
Signal to noise ratio: 65dB (mic), 70dB (MM), 95dB (line)
Output: 150mV (line), 30mV (DIN)
Speaker load impedance: 4Ω (minimum)
Semiconductors: 1 x FET, 3 x IC, 46 x Transistors, 22 x Diodes
Dimensions: 500 x 158 x 410mm
Weight: 13.2kg
Accessories: FM T-type antenna
Year: 1974
Design & Build Quality
Both receivers impress with their robust build and elegant retro aesthetics. The combination of brushed aluminum front panels, solid metal knobs, and rich wood veneer cabinets exudes vintage charm. These units are heavy, well-built, and made to last decades.
Sound Performance
Sound-wise, the SX-7730 and SX-737 deliver the warm, rich, and musical tone that vintage audio enthusiasts seek. With around 35-40 watts per channel into 8 ohms, they are more than capable of driving most vintage and modern speakers with clarity, punch, and smooth dynamics. The FM/AM tuner section is also outstanding, known for its excellent sensitivity and selectivity, ensuring strong and stable radio reception even today.
In My Opinion...
The Pioneer SX-7730 and SX-737 are Masterpieces of 1970s Hi-Fi Engineering.
If you love Vintage and want a well-made item with an Attractive Design, these are the right Radio Stereo Receiver.
