McIntosh MHT300 20Hz-20kHz Frequency Response

I think I should have stopped at the power rating and realized it's not what I need. They don't follow FTC standards consistently on all their products, nor do other brands.

@faustuss Below 20Hz, it's about feeling it, not hearing it.

@bartsw 

@faustuss Below 20Hz, it’s about feeling it, not hearing it.

All types of audio amplification have a much wider frequency range than is specified in the McIntosh documentation. Essentially, the frequency response below 20Hz rolls off a specific rate for that amplifier of say 3 dB per octave meaning the response would be down 3 dB at 10 Hz. Likewise, the high frequency response being a wide band amplifier which the MCH300 is, the high frequency response is likely down by 3 dB at 100Khz which is ultrasonic and out of the range of human hearing.

The Mc’s bass can be boosted or cut 10 dB which will ameliorate or increase the -3 dB natural roll off in the amplifier’s frequency response. In addition, you can choose up to ten different hinge points between 40 Hz and 250 Hz to optimize your main speaker’s low frequency roll off to your subwoofer’s optimum crossover frequency. There are also main speaker settings for size including your front and satellite speakers, so they better integrate with your subwoofer’s crossover. There also LFE and digital signal processing that can be incorporated as well. 

No simple rationalization as to the quality of products capabilities is really appropriate.

I forgot to add that the two subwoofer output channels are preamp level and the main amplifiers frequency response has no bearing on the subwoofer output preamps frequency response which isn't specified anyway.

A person can indeed drown in a glass of water. 

For a more detailed reply, re-read @ghdprentice 's posts.

@faustuss 

20Hz rolls off a specific rate for that amplifier of say 3 dB per octave meaning the response would be down 3 dB at 10 Hz

Thanks for the info but that's what I wanted McIntosh to confirm but they didn't.

The Mc’s bass can be boosted

I know but if the rolloff is steep, boosting in by 12dB won't do much if anything. That's also the limitation I run into above 15Hz when I measure the room. Although it can't be heard, I wanted to test the speakers but the AVR was the weak link. Boosting 16kHz doesn't really do much if anything.

the two subwoofer output channels are preamp level and the main amplifiers frequency response has no bearing on the subwoofer output preamps frequency response

Good point if true. I use speaker level because 1. it's a lot easier to calibrate every speaker as full range and 2. I don't have to waste $1200 for archaic bass management software and processes, not to mention the hardware.