Silver ST-757

The ST-757 is a rather uncommon boombox from Shin-Shirasuna, measuring 475mm wide (including the tuner knob). The tuner has 4 bands divided in half with 2 tuner needles. It also has an analog signal strength meter and twin LED output meters. Inside, it has 12cm woofers and 5cm tweeters (all 8 ohm). For amplifiers it uses a pair of Panasonic AN7145L chips. Maximum output is allegedly 2x6 watts. Frequency response is allegedly 60 to 15,000 Hz when using chrome tapes.

There are two re-branded versions of this model: Montgomery Ward GEN-3990 and Harman Kardon ST-767.