Anthem STR Preamplifier

Overview

The Anthem STR Preamplifier serves as a masterfully engineered nerve center for elite two-channel audio systems, brilliantly pairing the raw fidelity of a high-end analog preamplifier with the modern precision of a leading-edge digital processor. Designed, engineered, and crafted entirely in Canada, it provides a flawless, uncompromised signal path for any traditional or digital source. At its foundation is a premium internal digital-to-analog converter stage that intelligently up-samples lower-resolution files to 32-bit/192kHz while handling ultra-high-resolution files over asynchronous USB up to 32-bit/384kHz PCM and native DSD. Housed in a beautifully finished chassis featuring a prominent front-panel Thin-Film Transistor (TFT) display, this reference piece reveals the absolute finest acoustic nuances hidden within your music library.

Simcoe Audio Video Insight

For our clients across Central Ontario who refuse to compromise on two-channel playback but still want a single, unified main living space, the Anthem STR Preamplifier is a revolutionary asset. It completely eliminates the historic dividing line between pure audiophile listening and multi-channel home theater layouts. Its customizable Home Theater Bypass mode passes signals directly to your surround processor even when the unit is powered off, meaning your primary high-end tower speakers handle both movie duties and vinyl sessions effortlessly. By managing digital jitter, room anomalies, and complex subwoofer crossovers in the digital domain while maintaining an Analog Direct path for pure vinyl listening, it achieves an astonishing standard of structural flexibility.

Best for the Anthem STR Preamplifier: implement the onboard ARC Genesis room calibration tool to map out your room's natural acoustic reflections using the included laboratory-grade microphone. Running this software corrects muddy bass resonances without altering the organic signature of your loudspeakers, keeping your sound tightly focused and lifelike.

More Details

Why It Wins

  • Anthem Room Correction (ARC Genesis): Leverages advanced proprietary digital signal processing to analyze your room geometry, eliminating harsh peaks and dips to optimize your system's frequency response.
  • Advanced Subwoofer Control & Bass Management: Offers unprecedented structural configuration for up to two independent subwoofers, providing tailored options for stereo or mono low-frequency blending.
  • Asynchronous USB Input Architecture: Delivers native decoding for bit-perfect high-resolution digital playback, supporting up to 32-bit/384kHz PCM and complex DSD tracking up to 5.6 MHz.

What Makes It Different

Unlike standard preamplifiers that treat phono inputs as an afterthought, the STR includes two completely separate, heavily shielded phono stages specifically tailored for Moving Magnet (MM) and Moving Coil (MC) cartridges. Vinyl enthusiasts can even customize historical equalization curves (such as AES, CCIR, NAB, or Columbia LP presets) directly inside the setup menu, adjusting the playback to match the exact era a record was pressed. Additionally, rather than limiting you to factory input configurations, the software architecture lets you build up to 30 custom virtual inputs. This lets you assign the same physical connection to different customizable profiles, such as one setting with full digital room correction for streaming and another running complete Analog Direct bypass for pure analog tracking.

Technical Highlights

  • Analog Direct Mode: Allows pure analog signals to completely bypass digital sampling circuitry, preserving a completely untouched signal path for purist listening sessions.
  • Comprehensive Digital Inputs: Outfitted with a complete suite of professional connections, including balanced AES/EBU, dual coaxial, and dual optical inputs supporting up to 24-bit/192kHz resolution.
  • Premium Analog Interconnects: Features balanced XLR and single-ended RCA inputs and outputs alongside dedicated subwoofer terminals to isolate noise over long cable runs.
  • Smart Integration Infrastructure: Full IP control over Ethernet, RS-232 serial control, and 12-volt triggers allow seamless execution alongside home automation arrays.

Buyers Guide

Who This Is For

  • The No-Compromise Audiophile: Dedicated listeners who demand pristine signal clarity and studio-master detail from both physical vinyl media and high-res digital streams.
  • The Multi-Subwoofer Enthusiast: System designers looking to deploy two independent subwoofers to achieve flawless low-end balance throughout a listening space.
  • The System Unifier: Homeowners who want a single world-class stereo presentation that drops seamlessly into a broader home theater layout.

Ideal Use Case

  • Dedicated Two-Channel Music Rooms: Optimizes speaker performance by correcting the acoustic issues caused by hard window treatments, bare walls, or glass surfaces.
  • Integrated Living/Media Layouts: Acts as a pure high-end stereo setup while instantly passing front-channel controls to a surround sound processor for movie nights.
  • High-Resolution Digital Playback: Links directly to a Mac or PC to serve as an ultra-low-noise external DAC architecture for digital files.

What To Pair It With

  • Anthem STR Power Amplifier: Pair with the matching, Canadian-crafted Anthem STR Power Amplifier to form a symbiotic system designed for absolute current stability and immense power delivery.
  • High-End Turntables: Connect a reference turntable utilizing a delicate low-output moving coil cartridge to leverage the preamp's dedicated, highly isolated MC phono section.
  • Architectural Room Solutions: Combine with custom-mapped acoustic treatments and premium cabling to fully unlock the spatial detailing provided by the internal 32-bit DAC architecture.

Alternative Options

The Anthem STR Preamplifier is an absolute benchmark for reference stereo separation and digital control. However, if your target is an all-in-one chassis that combines processing and internal amplification without moving to separate components, the Anthem STR Integrated Amplifier delivers a closely related feature set in a single cabinet. For those clients looking to build out multi-room audio zones across an entire property or cottage, exploring our flexible Residential Audio Solutions will help identify the perfect network streaming layout for your property.

Anthem STR Preamplifier Specifications

General Information
Series STR Series
Brand Anthem
Product Type High-Resolution Stereo Preamplifier
DAC Platform 32-bit / 384 kHz (Supports PCM and DSD)
Manufacturing Designed, Engineered, and Crafted in Canada
Audio Performance
Frequency Response (Analog) 10 Hz – 80 kHz (+0, -0.1 dB)
THD+N (Analog) 0.0006% (1 kHz)
S/N Ratio 120 dB (Ad-weighted, ref 2V Vrms)
Maximum Output 3.3 Vrms (RCA), 6.6 Vrms (XLR)
Connectivity & Inputs
Digital Inputs 1 x USB Audio, 1 x AES/EBU, 2 x Coaxial, 2 x Optical
Analog Inputs 2 x XLR Pairs, 4 x RCA Pairs
Phono Inputs Dedicated MM (Moving Magnet) and MC (Moving Coil)
Outputs XLR & RCA Main Outs, 2 x Independent Subwoofer Outs (XLR & RCA)
Advanced Features
Room Correction ARC Genesis (Software, Calibrated Mic, and Tripod included)
Display Type Graphic Thin Film Transistor (TFT) Display
Home Theater Bypass Available on all Analog and Phono Inputs
Control Integration RS-232, IP Control, 12V Trigger, IR Input
Dimensions & Power
Dimensions (H x W x D) 3.875" x 17" x 14.875" (9.9 x 43.2 x 37.8 cm)
Weight 16.8 lbs (7.6 kg)
Power Supply Low-Noise Toroidal Transformer
Standby Power < 0.38 Watts

Anthem STR Preamplifier FAQs

What are the key features of the Anthem STR Preamplifier?

The Anthem STR Preamplifier offers a high-resolution preamplifier and digital section, supporting asynchronous USB up to 32-bit/384 kHz PCM and DSD 2.8/5.6 MHz sources. It includes Anthem's ARC Genesis room correction technology, bass management for up to two subwoofers, and a comprehensive set of analog and digital inputs.

How does the Anthem STR Preamplifier enhance audio performance?

The STR Preamplifier utilizes Anthem's ARC Genesis room correction to optimize speaker performance based on your room's acoustics, ensuring accurate and balanced sound reproduction. Its high-quality DAC and phono stage further enhance audio fidelity, delivering a natural and detailed listening experience.

What connectivity options are available on the Anthem STR Preamplifier?

The preamplifier provides multiple connectivity options, including four unbalanced RCA inputs, four balanced XLR inputs, two optical digital inputs, two coaxial digital inputs, and a USB-B input supporting high-resolution audio. It also features moving coil and moving magnet phono inputs, accommodating a wide range of audio sources.

What is the build quality of the Anthem STR Preamplifier?

The Anthem STR Preamplifier is constructed with high-quality materials, featuring a solid chassis and premium components. Its robust build ensures durability and longevity, while its sleek design complements any audio setup.