Ok technical stuff:
Dish signals are digital, they always have been, the receiver picks a carrier, (Transponder) like a FM radio tunes in a station then it transfers the signal to a device called a demodulator (in radios it may be called "Detector stage") (Note I have skipped a bunch of stages here getting it from the antenna to the Demod) this feeds it to a digital decoder/demodulator which separates out the audio and video and passes those signals on to the proper drivers for your TV.
Since the same Demodulators are used for ALL stations, They must decode say a 20 DB audio signal the same no matter what channel it is on.
Thus, the problem is at DISH's end since this is the only place where one (or more) channels can get their volume reduced.
One other thing though.. there is VOLUME and there is LOUDNESS, not the same thing.
I recall in the old days in Detroit I liked to listen to 105.1 WQRS, home of the best music (Classical) ever, music that has stood the test of time, not hear today and gone tomorrow.. Stuff like Fantasia on Greensleeves. Beethove, The Red Priest, Phillip Green. and more. Well, they did not use a compressor so it took a bit of effort to tune them in and you had to crank up the volume (Easier once radios went digital tuning).
Other stations had a dynamic range of as little as FOUR dB, but this station had a very wide dynamic range, Thus they were not as LOUD as the stations that had an OPTI-MOD with an elephant sitting on it.
On the other stations a Whisper was nearly as loud as a SHOUT, on WQRS a (whisper) was a (whisper) and a SHOUT was a SHOUT!!!
Your local stations may have gone for quality instead of LOUD.
Home was where I park it. but alas the.
2005 Damon Intruder 377 Alas declared a total loss
after a semi "nicked" it. Still have the radios
Kenwood TS-2000, ICOM ID-5100, ID-51A+2, ID-880 REF030C most times