Anthem STR Power amplifier silver

Power and Build Quality

The Anthem STR amplifier is a true powerhouse. Rated at 400 watts/ch (8 ohms, 2 channels driven) and 600 watts/ch (4 ohms, 2 channels driven), it can deliver up to 800 watts/ch (2 ohms) of conditional power for several minutes. Equipped with a 600VA dual toroidal transformer linear power supply, this amplifier provides stable power and low distortion.

The internal construction of the Anthem STR amplifier is equally impressive. With two independent banks of capacitors, each channel has 4 x 8,200 uF (32,800uF total) of power supply capacitance. Additionally, the amplifier uses a bridged-load configuration to double the output power. It features a cascaded complementary feedback input stage for linear, accurate sound reproduction. The amplifier also employs advanced load monitoring technology to protect the outputs under fault or high-temperature conditions.

Quality Construction

The Anthem STR Amplifier is built with high-quality materials to ensure durability and optimal performance. Its solid chassis and superior-grade components guarantee faithful, distortion-free sound reproduction. Moreover, its sleek, streamlined design seamlessly integrates into any audio environment.

Technical Specifications

Audio Performance

• Output power (per channel, continuous, 20 Hz - 20 kHz, < 1% THD)
  • 400 W (8 Ω)
  • 600 W (4 Ω)
  • 800 W (2 Ω)
• Voltage gain: 29 dB
• Input sensitivity (for 400 W at 8 Ω): 2.1 Vrms
• Channel separation: 101 dB (100 Hz), 98 dB (10 kHz)
• Damping factor (20 Hz - 1 kHz): 360
• Frequency response (20 Hz - 20 kHz): ± 0.1 dB

Technologies

• Oversized toroidal transformers
• Advanced load monitoring technology

Connectivity

• Chassis ground terminal
• Mains power connector (IEC C18)
• Channel protection fuses
• Inputs: Unbalanced RCA, Balanced XLR
• Speaker terminals
• Trigger: 5-24 V AC/DC input, output for daisy-chaining
• USB port for firmware updates

Control

• Automatic signal detection for power on/off
• Trigger control for power on/off

Physical Characteristics

• Power consumption
  • In operation: 600 W - 1100 W
  • In standby: 65 W
• Dimensions (W × H × D): 432 × 172 × 470 mm
• Net weight: 27.3 kg