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Reviews (1)
Jan 23, 2018
Well-made radio, muffled audio is its biggest weakness
3 of 3 found this helpful The Sony ICF-SW7600GR is a radio of high quality. It is well designed and well made, solid to handle, and I find it easy to use. The PLL tuning and station memory system are convenient. The synchronous detector works well though will lose lock when the signal is weak. For a short-wave listener this should be a good radio to travel with. It is versatile and you won't easily break it.
My interest is mostly in AM medium-wave DXing. The ICF-SW7600GR is not the best receiver for this use. Its RF input stages are wide-band which means strong stations (for both AM and FM) tend to cause images. The images can be suppressed by using its RF attenuator to reduce the RF gain. On AM MW, by itself it is less sensitive than the GE Superadios, but when used with a tuned passive loop antenna such as the Terk Advantage it becomes about as sensitive as a well aligned GE Superadio 2.
Its biggest weakness for program listening is its audio frequency response which is sharply limited by the ceramic filter in the AM second IF stage. The audio has weak bass and almost no treble: the two positions of the tone switch give the choice of muffled sound or more-muffled sound. The audio can be brightened somewhat by turning on synchronous detection and tuning one or two kHz off the carrier frequency but is still sharply limited. This makes speech less intelligible than with the GE Superadio 2 especially on weak stations with a lot of noise.