So we at Secrets do our own bench tests that provide you an independent verification of the amplifiers' performance. With the advent of multi-channel amps, many manufacturers make performance claims that are not always consistent with the FTC standards for amplifier ratings.
A quality professional loudspeaker can handle transient peaks. And you can find amps that have anywhere from one to seven channels or more. For a stereo pair of speakers, the amplifier should be rated at 700 watts per channel into 8 ohms. Now there are many new amplifier classes on the market – Class D, Class G and Class H are a few of the solid state choices. Of course, different amps from various manufacturers would sound unique and they varied in terms of their power output and other measured performance (such as maximum power, THD, IMD, etc.) That pretty much summed up the possibilities.
For solid state, your choices were typically limited to either Class A or Class A/B. The versatile PX series power amplifiers lineup combines intelligent processing with high output power to meet the requirements of a vast range of sound reinforcement environments. If choosing tube amps, you could select single ended or push-pull and then refine your choice based on the tube complement. You had mono and stereo amps that were either tube or solid state. Shop Reverbs selection of new, used and vintage home audio amps, from contemporary integrated amplifiers to old-school. Power Amps Rotel RKB-850 Rotel RKB-8100 Rotel RB-1552 MKII Stereo Class A/B Power Amplifier Marantz MM8077 7-Channel Power Amplifier Marantz MM7055 5. The amplifier in a home audio setup acts as the muscle of your system, taking the lower-level signal from your preamp or player and juicing it up to be pumped through your speakers. There was a time when there weren't that many choices to be made when purchasing power amplifiers. Home Audio Amplifiers For Sale on Reverb.