New Patreon Tier and Early Access Content available. If you would like to support AVForums, we now have a new Patreon Tier which gives you access to selected news, reviews and articles before they are available to the public. Read more.
Any shelves from your local DIY store would work fine for all but the most massive amplifiers as long as the wall is strong enough. Bear in mind that the shelf will be coming out quite a long way so the leverage on the brackets will be higher than for "normal" shelves.