You can transmit quality HIFI audio from the dirt to the light but will they hear it?
That is what it comes down to.
Even commercial AM broadcast radio suffers this today with new radio manufactures designing radios with narrow IF filters and what you get is limited treble and bass. You get a pass band that is only acceptable for speech which is fine for talk radio, and which is EXACTLY what broadcast commercial AM radio has become!
Believe it or not at one time AM radio used to carry music in HIFI with a limit at 15kHz like FM radio. Only drawback was that it was in monotone, but even they solved that with stereo AM.
Of course that all failed as FM became popular but that is far outside the point here...
You can drive a CB PA stage with series modulation and can drive that sucker from DC to dog ear top end and unless the person on the other end has a radio with the bandwidth to receive it you are wasting your time.
Second of all we are talking two way radios. What we mostly do with these is TALK. So that whole opened up audio bandwidth... does it make any difference? NO. Unless you are broadcasting music no one will notice the opened ends. In fact that openness can be detrimental to long distance talk as it opens up audio bandwidth it also opens up RF bandwidth which has a negating effect on range per watt.
You may sound damn good to you but 99% of the other CB rigs will not hear it with their shitty built in speakers.
If you want fidelity and LOUDNESS you need to concentrate on the audio going in. You should run that microphone into a 8 pole all pass filter, compressor, limiter, clipper to get maximum voice power. It is the effect of brick walling your voice so that every damn thing you say is peaked instead of highly dynamic audio that a normal mic has.
NO RADIO has the ability to do this by itself that I am aware of.
Plug that mic jack into an outboard processor, leave the radio itself UNTOUCHED. All those mods you hear about are myths spread around by people who do not know better.
Increasing your average modulation percentage can give you much wider range than increasing your RF output.
This is a fact!
Before you decide to replace your final transistor or run a linear, think logically why you sound soft and distant. It has little to do with RF and most everything to do with modulation.
Push the radio to 100% modulation, 125% maximum and DO NOT push it past 95 negative% modulation or you just splatter on other channels and decrease range.
What radios do this well (as OP requested)...?
None of them. It really does require more than a microphone and a basic AMC built into the radio.
Nothing else will fix his, increasing the RF will not fix it, using a power mic will not fix it. All those things will do is piss off your neighbors and people 3 channels up or down
