Tag Archives: overhaul

BoseĀ® 901 Series IV Active Equalizer #221114 Repaired

From the Rain City Audio Repair Blog: Another BoseĀ® 901 Series IV Active Equalizer came through the shop, this one serial #221114. It’s owner reported that it had lost one channel, so it was clearly due for an overhaul. It … Continue reading

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1974 Sony STR-6200F Receiver Overhaul and Alignment

From the Rain City Audio Repair Blog: I recently got to work on a pretty big, fairly rare Sony receiver from 1973-74: the STR-6200F. It’s a powerful receiver featuring 60W per channel of power available, with quite a few inputs … Continue reading

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Sony TA-5650 VFET Integrated Stereo Amplifier Overhaul

Cross-posted from the Rain City Audio Repair Blog: I recently got to work on a very interesting piece of vintage stereo gear from the golden age of hi-fi in the ’70s, the Sony TA-5650 VFET Integrated Stereo Amplifier. It’s a … Continue reading

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