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The dual-channel revolution
The STR power amplifier is the heart of a world-class 2-channel audio system, delivering massive power generation and quality in an intelligently designed component.
Designed and manufactured in Canada, the STR Power Amplifier delivers 400 watts per channel into 8 ohms with both channels driven, a massive 600 watts per channel into 4 ohms (both channels driven) and 800 watts into 2 ohms, delivering truly unrivaled performance.
The STR Power Amplifier features two huge transformers and multiple high-current output devices, ensuring that even the finest details and dynamic peaks are handled with equal care. Its exterior is beautifully designed, featuring a 7-inch graphic control display, and secure, highly conductive audiophile-grade connectors, creating a perfect match with the STR Preamplifier.
STR Features and Functions
400W/600W/800W into 8/4/2 ohms
Augmentable complementary feedback stage
Sixteen bipolar outputs per device channel
Dual-mono design
Massive toroidal transformers
Soft start
Four power supply on/off switching options
No rail fuses
Advanced load monitoring™ technology
Graphical front panel display for power meter, status and easy settings management
Available in silver and black
Made in Canada
POWER AMPLIFIER
Impedance: 8Ω 4Ω 2Ω
Power Output (per channel) (Continuous, 20 Hz - 20 kHz, <1% THD) 400 W 600 W 800W*
Maximum 3 seconds due to high power consumption.
THD (400 W) 0.0007% (1 kHz), 0.004% (20 kHz)
IMD (300 W) ITU-R (19 kHz + 20 kHz) 0.0006% SMPTE (60 Hz + 7 kHz) 0.0016%
SNR (IEC-A, reference 400 W) 121 dB
Frequency response (20 Hz - 20 kHz) ± 0.1 dB
Power band (-3 dB 400 W
into 8 ohms) 91 kHz
Slew Rate 30 V/μs
Damping factor (20 Hz - 1 kHz) 360
Channel separation 101 dB (100 Hz), 98 dB (10 kHz)
Input impedance 10kΩ (RCA), 15kΩ (XLR)
Input Sensitivity (400 W 8Ω) 2.1 Vrms
Voltage gain 29 dB
POWER NEED
120V version : In countries with 120V mains, this product operates from a single-phase AC power source that supplies power between 108V and 132V at 60Hz.
220-240 V version : In countries with 220, 230 or 240 V mains supply, this product operates from a single-phase AC power supply that supplies power between 198 V and 264 V at 50 Hz.
ENERGY CONSUMPTION
Standby : 310mW
Sleep mode : 65 W
Typical playback levels : 150 W - 300 W
High playback levels : 600 W - 1100 W
DIMENSIONS
Height : 6-3/4” (17.2 cm)
Width : 17” (43.2 cm)
Depth (without power cord): 18-1/2” (47 cm)
Weight (without packaging) : 60 lb (27.3 kg)
The dual-channel revolution
The STR power amplifier is the heart of a world-class 2-channel audio system, delivering massive power generation and quality in an intelligently designed component.
Designed and manufactured in Canada, the STR Power Amplifier delivers 400 watts per channel into 8 ohms with both channels driven, a massive 600 watts per channel into 4 ohms (both channels driven) and 800 watts into 2 ohms, delivering truly unrivaled performance.
The STR Power Amplifier features two huge transformers and multiple high-current output devices, ensuring that even the finest details and dynamic peaks are handled with equal care. Its exterior is beautifully designed, featuring a 7-inch graphic control display, and secure, highly conductive audiophile-grade connectors, creating a perfect match with the STR Preamplifier.
STR Features and Functions
400W/600W/800W into 8/4/2 ohms
Augmentable complementary feedback stage
Sixteen bipolar outputs per device channel
Dual-mono design
Massive toroidal transformers
Soft start
Four power supply on/off switching options
No rail fuses
Advanced load monitoring™ technology
Graphical front panel display for power meter, status and easy settings management
Available in silver and black
Made in Canada
POWER AMPLIFIER
Impedance: 8Ω 4Ω 2Ω
Power Output (per channel) (Continuous, 20 Hz - 20 kHz, <1% THD) 400 W 600 W 800W*
Maximum 3 seconds due to high power consumption.
THD (400 W) 0.0007% (1 kHz), 0.004% (20 kHz)
IMD (300 W) ITU-R (19 kHz + 20 kHz) 0.0006% SMPTE (60 Hz + 7 kHz) 0.0016%
SNR (IEC-A, reference 400 W) 121 dB
Frequency response (20 Hz - 20 kHz) ± 0.1 dB
Power band (-3 dB 400 W
into 8 ohms) 91 kHz
Slew Rate 30 V/μs
Damping factor (20 Hz - 1 kHz) 360
Channel separation 101 dB (100 Hz), 98 dB (10 kHz)
Input impedance 10kΩ (RCA), 15kΩ (XLR)
Input Sensitivity (400 W 8Ω) 2.1 Vrms
Voltage gain 29 dB
POWER NEED
120V version : In countries with 120V mains, this product operates from a single-phase AC power source that supplies power between 108V and 132V at 60Hz.
220-240 V version : In countries with 220, 230 or 240 V mains supply, this product operates from a single-phase AC power supply that supplies power between 198 V and 264 V at 50 Hz.
ENERGY CONSUMPTION
Standby : 310mW
Sleep mode : 65 W
Typical playback levels : 150 W - 300 W
High playback levels : 600 W - 1100 W
DIMENSIONS
Height : 6-3/4” (17.2 cm)
Width : 17” (43.2 cm)
Depth (without power cord): 18-1/2” (47 cm)
Weight (without packaging) : 60 lb (27.3 kg)