Anthem
Anthem STR Series 2 Channel Power Amplifier
Best premium amplifier for discerning audiophiles seeking exceptional sound.
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.
$6499.99
Owner Satisfaction
4.5
/ 5
Category Rank
1677
/ 2552
#1677 in Power Amplifiers
Price vs Category Average
-21%
Below average
Dimensions
634171812
/ -/”h x ”w x -/”d
Who it's for
- Discerning audiophiles prioritizing transparent and accurate audio reproduction.
- Listeners with power-hungry speakers or large listening environments.
- Home audio enthusiasts aiming for acoustically optimized sound in any room.
Who should skip it
- Budget-conscious consumers or those new to high-fidelity audio.
- Apartment dwellers or users with limited space for audio components.
- Users seeking an all-in-one integrated solution for their audio setup.
Performance breakdown
Power Delivery
Massive headroom ensures effortless dynamics even with the most demanding speakers.
Signal Clarity
Ultra-low distortion levels provide a pristine, transparent window into your music.
Build Integrity
Heavy-duty Canadian craftsmanship built to last for decades of daily use.
Load Stability
Handles low-impedance speakers with ease, maintaining composure under heavy current demands.
Interface Utility
The front display offers intuitive monitoring and control in a sleek package.
Thermal Management
Advanced monitoring keeps internal temperatures stable during intense, high-volume listening sessions.
Key Specs
Dimensions
6-3/4”h x 17”w x 18-1/2”d
Weight
60 lb (27.3 kg)
Impedance
2; 4; 8 Ohms
Channels
2
Manufacturer Warranty
5 Year Limited
Product Weight (lbs.)
60
THD (400 W)
0.0007% (1 kHz), 0.004% (20 kHz)
SNR (IEC-A, ref. 400 W)
121 dB
Features
- Massive Power Output
- Dual Mono Design
- Advanced Load Monitoring
- Audiophile Binding Posts
- Soft Turn-On
- Multiple Power On/Off Options
- Graphic Front Panel Display
- Crafted in Canada
What customers say
Customers consistently praise this amplifier for its exceptional sound quality and robust build. Reviewers frequently highlight its ability to deliver a powerful yet refined audio experience, noting impressive clarity and dynamic range across diverse music. The perceived reliability and premium construction are often mentioned, reinforcing its status as a high end audio component. Users appreciate the consistent performance and the significant upgrade it brings to their audio systems, often describing it as a foundational piece for serious listeners.
Know before you buy
This amplifier is designed to handle demanding loads with ease, delivering 400 watts into 8 ohms, 600 watts into 4 ohms, and 800 watts into 2 ohms. Its robust power supply and dual mono design ensure it can drive almost any high-end speaker system with stability and precision.
While it is engineered to be the perfect aesthetic and technical match for the Anthem STR Preamplifier, it features both RCA and XLR inputs, making it compatible with any high-quality preamplifier that offers matching output connections.
Advanced Load Monitoring (ALM) continuously monitors the amplifier's internal temperature, current, and voltage to ensure optimal performance. It protects the circuitry from potential damage without interfering with the audio signal, even during high-demand playback.
The 7-inch graphic display provides real-time status updates, including power output levels and system health monitoring. It offers a clear, at-a-glance view of your amplifier's performance without needing to access external software.
Given its significant weight of 60 pounds and dimensions of 6-3/4”h x 17”w x 18-1/2”d, you will need a sturdy, well-ventilated shelf or rack. Ensure your furniture can support the weight and allow for adequate airflow, as the unit requires space to dissipate heat during operation.
The STR Power Amplifier offers multiple power-on options, including manual control, a 12V trigger, and an auto-sensing feature that detects an input signal. This allows you to integrate the amplifier seamlessly into your existing system's power-up sequence.
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$6500