Quick view Denon 32401000800AD Receiver Audyssey Calibrating Microphone Originally Supplied with Models: AVR-1613 AVR-1713 AVR-1913 AVR-2113CI AVR-2313CI AVR-3313CI AVR-4520CI AVR-E300 AVR-E400 AVR-S640H AVR-S700W AVR-S710W AVR-S720W AVR-S730H AVR-S740H AVR-S900W AVR-S910W AVR-S920W AVR-S930H AVR-S940H AVR-X1000... $36.95 Out of stock Compare