Anthem STR Power Amplifier

Two-Channel Revolution. The STR Power Amplifier is the beating heart of a world-class 2-channel sound system. It delivers massive power generation, with audiophile-quality output in a smartly designed component.


Designed, engineered, and Crafted in Canada, the STR Power Amplifier delivers 400 Watts/channel into 8 ohms with both channels driven, a massive 600 Watts/channel into 4 ohms (both channels driven) and 800W in 2 ohms, for true no-holds-barred performance.

Inside, the STR Power Amplifier uses two colossal transformers and multiple high-current output devices so the most subtle details and dynamic peaks are handled equally well. Outside, its beautifully designed cosmetics, including a 7-inch graphic control display and secure, highly conductive audiophile connectors provide a perfect match to the STR Preamplifier.

STR Features & Functions
400W/600W/800W into 8/4/2 ohms
Cascoded complementary feedback input stage
Sixteen bipolar output devices per channel
Dual Mono Design
Massive toroidal transformers
Soft turn-on
Four power on/off options
No rail fuses
Advanced Load Monitoring™ Technology
Graphic front panel display for the power meter, status, and easy setup navigation
Available in Silver and Black Finishes
Crafted in Canada

Standby: 310 mW
Idle: 65 W
Typical Playback Levels: 150 W – 300 W
High Playback Levels: 600 W – 1100 W

Height: 6-3/4” (17.2 cm)
Width: 17” (43.2 cm)
Depth (not including power cord): 18-1/2” (47 cm)
Weight (unpacked): 60 lb (27.3 kg)