No you can set the gain...is this the amp where you cant set the gain?
i had a mrd series and i had to buy the digital remote to adjust the gain.
I've had this and the MRD-M605. Excellent amps, especially the latter. //content.invisioncic.com/y282845/emoticons/veryhappy.gif.fec4fed33b4a1279cf10bdd45a039dae.gif****, on my mrd you COULD NOT, lol
I had to download the owner's manual from Crutchfield to even figure out how to adjust anything. //content.invisioncic.com/y282845/emoticons/laugh.gif.48439b2acf2cfca21620f01e7f77d1e4.gifi had the mrd 500