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Harman Kardon AVR 3700 7.2-channel home theater receiver with Wi-Fi® and Apple® AirPlay® at Crutchfield
DIY: Harman Kardon Software Upgrade for AVR 2600 & AVR 3600 Home | A step-by-step guide to help you upgrade the software on your Harman Kardon AVR 2600 or AVR 3600 receiver.
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