A power amplifier drives passive speakers — those without a built-in amplifier. The correct choice starts with two numbers: power (in watts) and the impedance of the speakers (in ohms). The amplifier must deliver the appropriate power for the connected speakers at their impedance — an undersized amplifier distorts the sound and can damage the speakers, while an oversized one is just a waste of money if you don't use it to capacity.
Stereo amplifiers drive two channels (two speakers) independently — the standard option for simple sound reinforcement. The 'bridge' mode combines the two channels into a single, more powerful one for a subwoofer or a large speaker. Class D is the modern choice for efficiency and low weight — a Class D amplifier is much easier to transport than a Class AB of the same power, with much lower heat loss.
For sound reinforcement and fixed installations, Studiomaster is the brand with the widest coverage in our portfolio, from compact 2-channel amplifiers to high-power variants for line speakers. We offer over 100 models of active audio amplifiers from Studiomaster, Wharfedale Pro, Dynacord, and Yamaha.
Rack Stands and Steel Racks47 products 
Cables for Passive Speakers154 products 
Rack Adapters46 products 
Power Distribution Units80 products