sonoro MAESTRO Quantum Signature
SRP: £2299
Our most versatile high-resolution audio internet receiver. Pure audiophile sound thanks to True Fidelity Mode. Smart Home ready.
At a glance: What MAESTRO Quantum offers you
Outstanding sound
The targeted optimization of components and a complete overhaul of the circuit design make the MAESTRO Quantum our most musical and harmonious hi-fi amplifier.
True Fidelity Mode
Reduces signal processing to what is necessary to create the most authentic sound possible. Only the current source is processed further in the signal path.
Innovative volume control
Our newly developed PureGain digital technology reduces background noise by 20dB compared to conventional digital volume controls. For absolute silence in the sound image.
Perfectly matched
Optimized presets for sonoro speakers, including Dynamic Bass. Adaptive Loudness function. Equalizer for treble, bass, and balance. Advanced bass management for 2.1 and 2.2 systems.
sonoro Multiroom
Our wired Audio-over-IP solution delivers the highest sound quality in every room. Run up to 32* of the latest-generation sonoro music systems simultaneously. Available starting in Q3 2026.
Smart Home
Thanks to compatibility with leading smart home system providers, you can control the volume, sources, favorites, and integrate your audio system into automated scenes.
Numerous connection options
You can choose between phono MM-In, optical and coaxial digital inputs, HDMI (ARC), USB-C, stereo pre-out, line-out, and many more.
music streaming
Access a wide range of streaming services, including Spotify Connect (+Lossless), Qobuz Connect, Amazon Music, Deezer, and TIDAL Connect. Use Apple AirPlay or Google Cast to stream your favorite songs wirelessly to one or multiple audio systems at the same time. Auracast and Roon ready.
German Audio Design
Brought into a compact format with a lot of passion and expertise and put together from the best components. SOUND. DESIGNED in Neuss, Germany.
"With the Signature Line, we have given ourselves a gift. Hi-fi at sonoro has never sounded so good. I am incredibly proud of the entire team and the journey we have mastered together."
Marcell Faller CEO & Founder
The MAESTRO Quantum is based on the proven MAESTRO Quantum platformQuantum has been fundamentally redesigned in collaboration with industry icon Rainer Finck. Through the targeted optimization of key components and a completely revised circuit design, overall performance has been significantly improved. This means that it fits perfectly into sonoro's new sound philosophy in terms of sound quality, offering the best bass-rich and spatial sound.
Music throughout the house
Thanks to our specially developed sonoro multiroom technology, you can enjoy your favorite music wherever you want. Up to 32* rooms can be played simultaneously, divided into zones or individually. Our wired Audio-over-IP solution, which can be operated via a local network, ensures optimal sound distribution discreetly in the background. All new-generation sonoro music systems can be combined according to your preferences. Optionally, you can use Apple AirPlay, Google Cast, or the new Bluetooth LE audio function Auracast.
*The operation of up to 32 sonoro multiroom-capable music systems depends on the respective network infrastructure. Available with the release of the corresponding software update in the second half of 2026.
**Auracast ready. The full range of Bluetooth LE Audio functions will be made available at a later date via a software update.
SOUND. DESIGNED
The MAESTRO Quantum has been equipped with special software and hardware modifications to deliver sound in its purest form yet. A clear highlight is the True Fidelity mode, which deactivates or bypasses all non-essential components to enable a completely interference-free signal path. Enjoy your favorite music the way it should be: clear, unadulterated, and just as the artist intended.
The high-quality body the Signature Line lettering on the front and the newly developed volume control with Diamond Grip give the MAESTRO Quantum an elegant design that combines classic elements with modern aesthetics. The speaker terminals have also been redesigned and are identical to those used on our ORCHESTRA Shaped Signature .
HiFi of the next level
sonoro has designed the Signature Line in collaboration with industry icons Rainer Finck and Karl-Heinz Fink. In addition to the MAESTRO Quantum , this line includes the ORCHESTRA Shaped Signature and, in the future, a turntable (PLATINUM ). With the Signature Line, sonoro is taking the next step. The goal: to be represented in the high-end sector with products that offer high sound quality and unique design, while remaining affordable for a broader target group.
TV sound in hi-fi quality
Thanks to the HDMI connection with CEC function, you can use MAESTRO Quantum conveniently and easily in conjunction with your TV. Switching on and off, turning the volume up and down—everything can be controlled conveniently and comfortably using the TV remote control (HDMI ARC or eARC output on the TV required). Alternatively, you can use the optical or coaxial input.
Technical information
- Hypex Class-D amplifier
- 2 x 180 watts at 4 Ω / 2 x 110 watts at 8 Ω @ 0.1 %THD
- Operation of external loudspeakers with an impedance of 4 to 16 Ω
- Adjusting bass, treble & balance
- Digital volume control (PureGain) – developed in-house by sonoro
- True Fidelity Mode: reduces signal processing to the minimum necessary to create the most authentic sound possible
- Adaptive loudness function and other modes, e.g. 2.1 systems with high-pass filter
- Optimum equalizer presets for sonoro speakers + Dynamic Bass function (for optimized bass reproduction)
- Dirac Live room correction app (license included - 20 to 500 Hertz, optional measurement microphone required).
- 4" TFT color display: high-resolution; graphic & automatic brightness adjustment
- WEP, WPA2 (PSK), WPA3, WPS encryption
- WiFiIEEE 802.11 a/b/g/n/ac/ax, 2.4/5 GHz
- LAN network connection
- Automatic and manual station search
- Automatic switch-off (sleep timer) with minute-precise setting (5-90 min.)
- A total of 99 favorite memory locations for all music sources max. 20 Spotify playlists/tracks/artists possible
- Operation via remote control, control via the sonoro audio app or directly on the device
- Roon Ready
- Smart Home Ready
- FM & DAB+ digital radio, Internet radio
- Podcast mode
- Slot-in CD player (CD, CD-R, CD-RW, MP3-CD, WMA) with repeat and shuffle function
- Bluetooth® (A2DP, AVRCP)
- Bluetooth® LE audio technology, Auracast™ ready
- Bidirectional Bluetooth® connection for wireless Bluetooth® headphones
- Apple AirPlay, Google Cast
- Spotify Connect™, TIDAL Connect™, Amazon Music™, Qobuz Connect™, Deezer™*
- DLNA, UPnP
- Phono preamplifier for MM cartridges
- HDMI (ARC)
- USB-A, USB-C (charging and playback function)
- AUX-In (3.5mm jack)
- Gold-plated AUX-IN (RCA input)
- Stereo pre out, line out
- Gold-plated phono input (for MM cartridges)
- Digital optical and coaxial inputs and outputs
- Headphone connection (3.5mm jack)
- New high-quality speaker connections
- Built-in power supply (AC 220-240 V~50/60 Hz 300 watts) with power switch
- Mains cable with phase marking
- Dimensions (W/H/D) including antennas but without rotary control: approx. 452 x 120 x 279 mm
- Weight: approx. 7 kg
- Hand-sanded wooden housing finished with high-quality lacquer
- Laser-cut, one-piece aluminum front with a floating look and iconic design
- Buttons and rotary knobs in full metal
- Newly developed volume control with Diamond Grip
Our MAESTRO Quantum comes with the following accessories included:
- Remote control
- Two batteries (AAA)
- Power cable (2 M length)
- FM/DAB Throw Antenna
- FM/DAB telescopic antenna
- External WiFi antenna
- Quick Start Guide
- Safety instructions
sonoro audio GmbH, Hammer Landstraße 45, 41460 Neuss, Germany
sonoro MAESTRO Quantum Signature
Black