Part Number SRM 450 12 having (CAGE Code 0X654) and FSC 5965 Headsets, Handsets, Microphones and Speakers in stock with ready to ship. Get an instant quote for SRM 450 12 Loudspeaker Electro by Mackie Designs Inc. Fill the form below with your desired order quantity, targeted price and the expected order-fulfilment date. Our dedicated account manager will get back to you within 15 minutes.