BK ST140

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High Performance Stereo

BK Components ST-140 Stereo Power Amplifier B&K High Performance Stereo $550 Aug 26, 2023

Canuck Audio Mart

B&K ST 140 power amplifier, B&K CS 117 preamplifier. B&K TS 108 tuner Canuck Audio Mart CA$650 4% Mar 15, 2025

US Audio Mart

B & K ST-140 classic MOSFET power amp in near time capsule shape with original box US Audio Mart $328 Nov 9, 2025