1998 to 1999

FM7

The FM7 is designed to capture the true spirit of the transmitted material with the least amount of alteration to the original signal.  The sensitive, low distortion front-end design of the FM7 enables this product to enjoy wide dynamic range and highly linear characteristics, reducing intermodulation artefacts that can be harmful down the line in the demodulation process. The generous front-end Power gain assists in achieving low noise operation at low signal levels.

The triple stage IF strip of the Cyrus FM7 is a highly linear design which is substantially responsible for the low distortion behaviour of the tuner as a whole. Complex ground plane design and Power supply topology are key elements in achieving the superior performance of the FM7.

Close tolerance quartz crystal together with a precision phase-locked-loop (PLL) circuitry is designed to enable stable and accurate tuning to the radio station. The centre frequency adjustment of the tuning system is achieved by computer controlled calibration during the manufacturing phase of the FM7 through the MC-BUS. Stereo decoding and output filtering of the FM7 is achieved through a unique blend of both passive and active design. This scheme ensures a more linear phase response and achieves effective rejection of the pilot tone and the sub-band frequencies. This largely accounts for the very natural reproduction quality of this product.

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