I can't see anywhere in the site scope, help or meta posts that specifically covers 'audio-visual' hardware - receivers, amps, speakers etc.
I mentioned in comments under A/V receiver that can increase the level of LFE channel mixed into front left and right channels output in case when no subwoofer is used that not only did I think it too broad, but also off-topic as being 'not connected to a computer.'
Now, of course, we're all aware that in these days of HTPC, certainly one of the things that's going to be connected to an AVR [audio-visual receiver/amp] is going to be a computer.
Does this make AVRs on topic? …and more broadly, home theatre speakers or similar peripherals?
I think not, personally. I think it's too large a Pandora's box to open. I also don't think we are ever going to be competition for such as AVForums who have had this topic covered for decades.
We have many questions on televisions; I see crossover in this as TVs can be monitors too, but only a couple of questions specifically on AVR - A/V receiver for HDMI, optical audio in and AVR + Hi-Fi speakers? which I see I've already commented on, yet remains open. [Should have been closed as too broad anyway, imo.]