On 10/26/2010 7:49 AM, Brendan Minish wrote: > Surplus Motorola 2 way radio speakers work great with the K3 > > they are Cheap at hamfests, Efficient and they are well optimised for > voice communications, look for 2 or 4 Ohm ones
Yes. In general, what you want in a speaker for ham gear is very SMOOTH (flat) response in the speech range (300 Hz to 5 kHz), and fairly high voltage sensitivity (at least 90 dB at 1 meter for 2.8 volts). In general, the larger the loudspeaker, the less power it requires. Thus, small loudspeakers tend to have fairly low voltage sensitivity. Small cheap speakers also tend to have lousy frequency response -- very bumpy response curves that degrade speech intelligibility. The Radio Shack Minimus 7s have long been well thought of in the audio world. The TOA 22-ME-AV is even better, and there was a company called Triad that made some great compact loudspeakers. All of them are long discontinued, but you might find them on EBay. 73, Jim Brown K9YC ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
