Product code: APR158ANTPREBL
Anthem STR Preamplifier
High Performance Preamplifier
£4,525.00

























-
Push the Power of Audio Control
”Simply put, it’s one of the best sounding two-channel preamplifiers I’ve ever heard.” – ‘Home Theater Review – 5/5’.
STR Preamplifier includes a high-resolution preamplifier and a digital section, with support for asynchronous USB up to 32-bit/384 kHz PCM and DSD 2.8/5.6 MHz sources. This high-quality USB audio input transforms digitally stored audio from your Windows or Mac computer into warm, natural analog sound.
Reference stereo sound from the AV pros
The Canadian company that’s world renowned for making some of the best AV equipment in the world, also produces stereo amps and, as you’d expect, they’re something special. The STR Preamplifier combines a high-resolution analogue pre-amp with built-in DAC (Digital to Analogue Convertor) for reference sound quality. Thanks to Anthem’s acclaimed ARC room correction system, perfect results are guaranteed in all spaces.High-resolution sound
Handmade circuits, featuring top quality components ensure a clear, dynamic sound. For the best possible sound with your analogue sources, Analogue Direct bypasses auxiliary circuits for the ultimate in detail.Anthem Room Correction for professional results in any room
Designed in conjunction with the National Research Council of Canada, ARC (Anthem Room Correction) provides a sonic output that’s ideal for your particular room. Using the supplied mic and stand, 5-10 placement measurements are made. Next, use the supplied software on your PC to determine the optimal settings on the amp to suit your room. The result is a sound closer to the original – in any room. (Professional set-up recommended).Connect your digital sources
Featuring a built-in 32-bit DAC, the STR Preamplifier connects directly with your digital sources. With no fewer than two optical and two coaxial inputs, there are enough inputs for a CD, TV, streamer and set-top TV box. For the best sound from your home computer or laptop, there’s also an Asynchronous USB input – ideal for steaming hi-res music files right up to 384kHz/32-bit and DSD 5.6 MHz.Up-sampling to 192kHz-32-bit
Even if you don’t have access to Hi-res music files, you can get much of the benefit from your existing digital sources. Thanks to digital up-sampling, all digital inputs can be upsampled to 192 kHz/32-bit resolution for enhanced clarity and detail.MM and MC phono inputs to suit most turntables
Making the STR Pre-amp suitable for all types of turntable, the built-in phonostage accepts both MM (Moving Magnet) and MC (Moving Coil) cartridges. The phonostage also offers six pre-RIAA curves plus adjustable settings to get the best sound from your cartridge and records.Bass management for two subwoofers
The STR Preamplifier gives you far more subwoofer options than most stereo pre-amps. Twin outputs let you use one or two subs. If you decide on two, they can be configured for left and right or dual-mono – whatever you feel sounds best. Used in conjunction with Anthem’s ARC, bass management gives seamless blending for smooth, ‘thump-free’ sound.Professional XLR, balanced interface
More usually found in studios, XLR balanced sockets offer excellent noise resistance and a ‘locked in’ connection for the lowest distortion and most secure connection. The STR Pre-amplifier offers a class-leading four inputs, four outputs for the analogue stage and a further digital XLR input.Make the most of all your digital and analogue sources, with the Anthem STR Preamplifier at the heart of your system.
Moving Coil and Moving Magnet Phono
Anthem has also taken into consideration the resurgent popularity of vinyl records, and has included separate inputs for moving magnet and moving coil cartridges, with the phono section completely shielded to maintain a clean signal. The transparency and refinement of the STR Preamplifier reveals the hidden magic of classic media.
In addition, the phono curve is continuously adjustable for proper playback of any record that predates the RIAA equalization standard.STR Features & Functions
- High-resolution preamplifier section
- Anthem Room Correction (ARC®) optimizes in-room response for perfect sound
- Bass management for two subwoofers, in mono or stereo
- Up-sampling of lower-resolution sources to 32-bit/192kHz
- Asynchronous USB Audio Input supports 32-bit/384kHz PCM, and DSD 2.8 / 5.6 MHz sources
- Coaxial, optical, and AES/EBU inputs up to 192kHz
- MM and MC phono, balanced XLR, and single-ended analog inputs
- Six pre-RIAA curves plus adjustable settings for playing older records accurately
- Analog Direct mode
- Adjustable analog input levels to match sources, minimize noise and prevent distortion
- Graphic front panel display for easy setup and navigation
- Balanced output for all channels including the two subs
- Home Theater Bypass Mode works without having to turn power on and includes RCA/XLR input for two subs
- Create up to 30 virtual inputs for setup flexibility
- Controllable via Ethernet, RS-232, or supplied IR remote
- Available in Silver and Black Finishes
- Crafted in Canada
-
Specification Data Sheet
PHONO PREAMPLIFIER
Input Impedance 100 Ω (MC), 47 kΩ || 270 pF (MM)
RIAA Response (20 Hz to 20 kHz) ± 0.1 dB
Gain (1 kHz, volume set to 0 dB) 61 dB (MC), 41 dB (MM)
DSP Mode
Maximum Input (at 1 kHz for < 0,01% THD 20 Hz - 20 kHz) 3.6 mV (MC), 38 mV (MM)
THD+N (at 1 kHz 20 Hz - 20 kHz BW, 2 Vrms output) < 0.02% (MC), < 0.003% (MM)
THD (at 1 kHz 20 Hz - 20 kHz BW, 2 Vrms output) 0.002% (MC), < 0.0015% (MM)
SNR (IEC-A, 2 Vrms output) 84 dB (MC), 102 dB (MM)
Direct Mode
Maximum Input Direct Mode (at 1 kHz for < 0,01% THD 20 Hz - 20 kHz) 11.8 mV (MC), 129 mV (MM)
THD+N (at 1 kHz 20 Hz - 20 kHz BW, 2 Vrms output) < 0.008% (MC), < 0.003% (MM)
THD (at 1 kHz 20 Hz - 20 kHz BW, 2 Vrms output) 0.002% (MC), < 0.0015% (MM)
SNR (IEC-A, 2 Vrms output) 92 dB (MC), 110 dB (MM)PREAMPLIFIER
Frequency Response
digital-in, 192 kHz 10 Hz - 50 kHz (+0.00, -0.50 dB)
digital-in, 96 kHz 10 Hz - 45 kHz (+0.00, -0.50 dB)
digital-in, 44.1 kHz 10 Hz - 20 kHz (+0.00)
analog-in, DSP mode 10 Hz - 40 kHz (+0.02, -0.20 dB)
analog-in, direct mode 10 Hz - 80 kHz (+0.00, -0.10 dB)
THD+N (at 1 kHz, 20 Hz - 20 kHz BW, 2 Vrms output)
DSP Mode 0.001% Digital in, 0.0016% Analog in
Analog Direct Mode 0.0016%
SNR (at 1 kHz, IEC-A, 2 Vrms output)
DSP Mode 113 dB (digital-in), 108 dB (analog-in)
Analog Direct Mode 120 dB
Maximum Output ( <0.1% THD )
RCA connectors (direct and DSP modes) 3.3 Vrms
XLR connectors (direct and DSP modes) 6.6 Vrms
XLR Configuration Pin 1: Ground, Pin 2: Normal, Pin 3: Inverted
POWER REQUIREMENT
This product operates from a single phase AC power source that supplies between 90V and 264V at a frequency of 50 or 60 Hz.
POWER CONSUMPTION
Standby 0.38 W (120V), 0.45 W (240V)
Standby + Network 1.1 W (120V), 1.2 W (240V)
Typical Use 10 W
DIMENSIONS
Height 3-8/9” (9.93 cm)
Width 17” (43.2 cm)
Depth (not including power cord)
14-5/6” (37.69 cm)
Weight (unpacked)
16.8 lb (7.6 kg) -
Anthem AV
Anthem AV have a distinction for their Premium Audio Video Receivers and Powered Amplifiers in bespoke HiFi and home cinema designs. Anthem products provide an unprecedented level of reliability and functionality; they deliver one of the industry’s highest performance-to-value equation.
Anthem products are consistently a brand of choice for entertainment and music, knowledgeable audiophiles, professional musicians and engineers with easy to use tools and the ability to connect, control and optimise the Anthem AV range of products.
Anthem AV outstanding engineering team create hand-designed circuit boards and huge, precision-wound toroidal transformers.
Featured Products
-
Featured
Bluesound POWERNODE
The Bluesound POWERNODE is the hifi amp reinvented for the streaming age, combining audiophile-grade componentry and multi-room music capabilities to create an intuitive "just add speakers" hi-res sound system for modern music lovers.
£849.00 -
Featured
Bluesound PULSE FLEX 2i
Portable Wireless Multi-Room Music Streaming Speaker The PULSE FLEX 2i makes portable high-fidelity possible with its innovative driver design and compatibility with today’s leading lossless music streaming services.
£249.00 -
Featured
Bluesound PULSE SOUNDBAR+
Wireless Streaming Sound System The Bluesound PULSE SOUNDBAR+ is the ultimate audiophile-grade soundbar for all your home entertainment needs.
£899.00 -
Featured
300W Portable Bluetooth Party Speaker with LED Light Show & Karaoke
Bring big sound, booming bass and a built-in light show to any party with the Hisense Party Storm — the ultimate portable speaker for home, garden or beach.
£249.00 -
Featured
LG OLED83G54LW 83" OLED Smart Television, 4K Ultra HD, Silver, G Rated
OLED HDR 4K Ultra HD Smart TV, 83 inch with Dolby Atmos & One Wall Design, Light Satin Silver
£6,499.00 -
Featured
Marantz CINEMA 70 Dolby Atmos and DTS:X AV Receiver only
Slimline 7.2 Channel AV Receiver with 50W, 8K 6 x HDMI, Dolby Atmos, DTS:X & 8K Ultra HD
£639.00 -
Featured
Marantz Grand Horizon Wireless Speaker with 360° Hi-Fi Sound – Available in Midnight Sky, Champagne or Moon Ray
Immerse yourself in a new era of luxury wireless audio with the Marantz Grand Horizon – a statement speaker with wide dispersion, audiophile-grade clarity and premium design.
£5,249.00 -
Featured
Marantz Horizon Hi-Fi Wireless Smart Speaker with Voice Control & Multi-Room Audio
Experience legendary Marantz sound in a compact wireless speaker. The Horizon delivers hi-resolution audio, built-in voice assistants, HEOS multi-room streaming, and elegant design — available in Midnight Sky, Champagne and Lunar White.
£3,249.00 -
Featured
Monitor Audio Bronze 300 7G 5.1 AV System – Immersive Home Cinema Sound
Step into cinematic sound with the Bronze 300 7G 5.1 system — precision-built for dynamic home entertainment with room-filling clarity and power.
£2,450.00 -
Featured
Monitor Audio Bronze 300 7G 7.1.2 Dolby AV System – Immersive Home Cinema Audio
7.1.2 Dolby Atmos AV bundle with Bronze 300 towers, C150 centre, FX surrounds, AMS Atmos speakers and V12 subwoofer – full surround sound, one package.
£3,450.00 -
Featured
Monitor Audio Bronze 50 7G 5.1 AV System Bundle – Bronze 50, Centre 7G, On‑Wall & Vestra Sub
Experience immersive surround sound with Bronze 50 7G, Centre 7G, On‑Wall surrounds and Vestra subwoofer — compact design, premium performance, perfect for modern home cinemas.
£1,850.00 -
Featured
Monitor Audio Silver 300 7G Dolby Atmos Cinema 7.1.2 – Premium Immersive Surround Sound
Experience true home cinema with the Monitor Audio Silver 300 7G Dolby Atmos 7.1.2 system – powerful, elegant, and built for immersive precision.
£5,150.00 -
Featured
Onkyo TX-RZ70 11.2-Channel THX Certified AV Receiver
Onkyo TX-RZ70 Flagship 11.2-Channel THX Certified AV Receiver with Dirac Live, 8K HDMI and Multiroom
£2,499.00 -
Featured
Onkyo TX-RZ50 Premium THX Certified 9.2-Channel AV Receiver
Onkyo TX-RZ50 Premium 9.2-Channel THX Certified AV Receiver with Dirac, 8K, Multiroom and premium streaming.
£1,379.00 -
Featured
Trinnov Altitude 32 Reference Immersive Audio Processor
The Ultimate Experience in Immersive Audio
£28,600.00