ICOM SP-23 EXTENSION SPEAKER ICOM SP-23 EXTENSION SPEAKER ICOM SP-23 EXTENSION SPEAKER USED ITEM £149.95 Quantity: at £149.95 each Add To Basket SP-23 speaker in good working order, light scratch along one side see picture. Complete with original box. The SP-23 external speaker has been designed for use with Icom base station transceivers and receivers. The SP-23 is the successor to the SP-21 and has been upgraded to include built in high and low pass filters to obtain the maximum audio characteristics of received signals. Key Features/Specifications: Rated input power 2W Max input power 4W Impedance 8 Ohm Size 145 x 111 x 282.5mm Weight 1.65kg (approx) Headphone jack Includes speaker cable and filter cut-off frequency label High Pass Filter 1: Cuts off audio output frequencies of 300Hz or less. High Pass Filter 2: Cuts off audio output frequencies of 600Hz or less Low Pass Filter 1: Cuts off audio output frequencies of 2.4kHz or more. Low Pass Filter 2: Cuts off audio frequencies of 800Hz or more Two audio input jacks allows connection of two transceivers/receivers. Similar height & depth as IC-7600 etc.