Anthem STR power amplifier is the beating heart of a world-class 2-channel sound system. It delivers massive power generation, with audiophile-quality in a smart component. Designed, engineered, and crafted in Canada, the STR power amplifier delivers 400 Watts / channel into 8ohms with both channels driven, a massive 600 Watts / channel into 4ohms (both channels driven) and 800W in 2ohms, for a great performance.
Inside, the STR power amplifier uses two colossal transformers and multiple high-current output devices. Outside, its beautifully designed cosmetics, including a 7-inch graphic control display and secure, highly conductive audiophile connectors provide a great match to the STR preamplifier.
- 400W / 600W / 800W into 8 / 4 / 2ohms
- 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
- Power Amplifier: Impedance:
- 8Ω: 400W
- 4Ω: 600W
- 2Ω: 800W
- THD (400W): 0.0007% (1kHz), 0.004% (20kHz)
- IMD (300W):
- ITU-R (19kHz + 20kHz): 0.0006%
- SMPTE (60Hz + 7kHz): 0.0016%
SNR (IEC-A, ref. 400W): 121dB
Frequency Response (20Hz - 20kHz): ± 0.1dB
Power Bandwidth (-3dB at 400W into 8ohms): 91kHz
Slew Rate: 30V/μs
Damping Factor (20Hz - 1kHz): 360
Channel Separation: 101dB (100Hz), 98dB (10kHz)
Input Impedance: 10kΩ (RCA), 15kΩ (XLR)
Input Sensitivity (For 400W into 8Ω): 2.1Vrms
Voltage Gain: 29dB
120V Version: In countries where the line voltage is 120V, this product operates from a single phase AC power source that supplies between 108V and 132V at a frequency of 60Hz.
- 220-240V Version: In countries where the line voltage is 220, 230, or 240V, this product operates from a single phase AC power source that supplies between 198V and 264V at a frequency of 50Hz.
- Power Consumption:
- Standby: 310mW
- Idle: 65W
- Typical Playback Levels: 150W - 300W
- High Playback Levels: 600W - 1100W
- Dimensions: 6 3/4"h x 17"w x 18.5"d
- Weight: 60 lbs
60-Day Money-Back Guarantee
We want you to love every item you purchase from SKY by Gramophone. If you are not satisfied with your purchase, you may return items that are complete and like-new for any reason within 60 days. You may choose an exchange or a refund for the full amount of the items you purchased*. Refunds must be issued to the same credit card, debit card, gift certificate, or other form of payment used in the original transaction.
SKY by Gramophone is an authorized dealer for all products we carry, which means manufacturer warranties are valid on every product purchased from us.
In the unlikely event a television arrives damaged, we require notification of damages within 24 hours of receipt of the unit.
*Restocking fees apply for furniture and televisions, as well as for products without original packaging, missing accessories, and not in new or like-new condition.