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Re: [AMRadio] Microphone recomendation

I used about 15 megs of grid-leak with a D-104 in the early 70s, and I was picking up a strong 9 Hz rumble that was probably from a nearby main road. The D-104 is a good choice for super-high Z inputs because it has a strong response peak around 3 KHz. This makes brighter, clearer audio,

Re: [AMRadio] Hallicrafters R-12 speaker

In speaker system design, there are optimum combinations of driver and enclosure. This may or may not be the optimum driver for this enclosure. There are complex driver parameters that can allow an analysis to determine the optimum enclosure characteristics. The basic issue is the acoustic