Daily Archives: January 2, 2016

BoseĀ® 901 Series IV Active Equalizer #219533 Overhaul

From the Rain City Audio Repair Blog: This BoseĀ® 901 Series IV Active Equalizer, serial #219533, came through the shop for an overhaul. The owner was reporting the left channel went out, so it’s clearly time for an overhaul! A … Continue reading

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