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File:HDMI ARC connectors (audio return channel) on Harman Kardon AVR 370 AV receiver (cropped).jpg - Wikimedia Commons
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Harman Kardon AVR 370 | 7.2-Channel Wireless Network Connected AV Receiver | South Africa | AudicoOnline.co.za
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File:Harman Kardon AVR 370 AV receiver (2013) front top view, switched on, with remote control.jpg - Wikimedia Commons
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Harman Kardon AVR 3700 7.2-channel home theater receiver with Wi-Fi® and Apple® AirPlay® at Crutchfield
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