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The Harman Kardon 730 Twin Power is a solid state AM/FM stereo receiver from circa 1976, featuring a unique dual mono power supply design with separate transformers and amplifier boards for each channel. It delivers 40 watts per channel into 8 ohms, with a frequency response from 4Hz to 130kHz and very low total harmonic distortion of 0.1%. The receiver is praised for its warm yet accurate sound, strong stereo imaging, and ability to drive 8-16 ohm speakers, including some 4-ohm models. It includes a phono stage and tuner, making it a versatile vintage unit. The 730 is regarded as superior in sound quality to many contemporary receivers of its era, with a damping factor of 30 and signal-to-noise ratios of 72dB (MM) and 77dB (line). It measures 432 x 368 x 140 mm and weighs 13.7 kg. Common upgrades include capacitor replacements and LED lighting retrofits to improve reliability and sound quality. The unit is no longer manufactured but remains highly regarded among vintage audio enthusiasts.
Amplification power output and characteristics
Analog signal output specifications
Input and output connections
Size, weight, and appearance
Specifications are community-contributed and may not be accurate or complete. Verify all details with the manufacturer before making purchasing decisions. Terms & Conditions
Estimated price (community-sourced)
Around — community and catalog average, updates slowly
Components that show up alongside the Citation 730 Twin Power in real systems. A verdict means the pair has been checked for compatibility and headroom — open it to see how the two get along.
The closest alternatives on specs, description and the systems they turn up in, with the specs they share set side by side.
The 2230's power @ 8ω is 30W against the Citation 730 Twin Power's 40W, its signal-to-noise 83 dB against 72 dB, its damping factor 45 against 30, and its thd 0.500% against 0.100%.
Both turn up in the same documented systems.
The A-5's power @ 8ω is 45W against the Citation 730 Twin Power's 40W, its signal-to-noise 90 dB against 72 dB, its thd 0.080% against 0.100%, and its damping factor 50 against 30.
The A-9110's power @ 8ω is 50W against the Citation 730 Twin Power's 40W, its signal-to-noise 78 dB against 72 dB, its thd 0.050% against 0.100%, and its damping factor 95 against 30.
Both turn up in the same documented systems.
The AXR100's power @ 8ω is 100W against the Citation 730 Twin Power's 40W, its signal-to-noise 82 dB against 72 dB, its damping factor 50 against 30, and its thd 0.010% against 0.100%.
Both turn up in the same documented systems.
Marantz 2225
Marantz 2220B
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