sonoro MAESTRO Quantum Signature – High-End Streaming Receiver with Audiophile Standards
The sonoro MAESTRO Quantum Signature expands the well-known MAESTRO series with a significantly more audiophile Signature version. Developed in collaboration with audio expert Rainer Finck, the receiver combines modern streaming technology, powerful amplifier performance, and high-quality sound tuning in a compact all-in-one system.
Audiophile Sound with Signature Tuning
Compared to the regular MAESTRO Quantum, the Signature version has been extensively optimized technically. sonoro relies on a completely revised analog and digital section, selected components, and new sound tuning. The goal was an even more harmonious, spatial, and musical reproduction.
The integrated Hypex Class-D amplifier delivers:
- 2 x 180 watts at 4 ohms
- 2 x 110 watts at 8 ohms
- Support for speakers from 4 to 16 ohms
This makes the receiver suitable for both compact bookshelf speakers and demanding floor-standing speakers.
True Fidelity Mode & PureGain Volume Control
A highlight of the MAESTRO Quantum Signature is the new True Fidelity Mode. Here, unnecessary signal processing is deactivated or bypassed to create the most direct and unadulterated signal path possible. The result is a particularly transparent and natural sound character.
In addition, sonoro integrates its proprietary PureGain technology. This digital volume control reduces background noise by up to 20 dB compared to conventional solutions, according to the manufacturer, ensuring more tranquility and detail in the soundscape.
Streaming, CD and TV Sound in One Device
The MAESTRO Quantum Signature combines classic Hi-Fi functions with modern streaming convenience. Supported features include:
- Spotify Connect
- TIDAL Connect
- Qobuz Connect
- Amazon Music
- Deezer
- Apple AirPlay
- Google Cast
- Bluetooth LE Audio & Auracast Ready
- Roon Ready
Furthermore, sonoro integrates a high-quality slot-in CD player, internet radio, DAB+, and FM radio. Thanks to HDMI ARC, the receiver can be conveniently connected to a TV and easily controlled via the TV remote control.
Extensive Connectivity
The receiver offers numerous analog and digital connections:
- HDMI ARC
- USB-A & USB-C
- Phono MM input
- Optical & coaxial digital inputs
- Stereo Pre-Out
- Line-Out
- AUX-In
- LAN & WLAN
- Headphone output
This makes the MAESTRO Quantum Signature suitable as the central hub of modern Hi-Fi systems.
Dirac Live Room Correction & Multiroom
With the integrated Dirac Live license (20–500 Hz), the sound can be adjusted to the room acoustics. Especially in living rooms with challenging acoustics, this offers audible advantages in terms of precision and bass control.
In addition, the device supports the new sonoro Multiroom system. In the future, up to 32 compatible sonoro devices can be operated synchronously via the local network.
High-Quality Design "Made in Germany"
The MAESTRO Quantum Signature is developed in Neuss and combines modern Hi-Fi design with high-quality materials. The housing consists of hand-sanded wood with a lacquered surface and an aluminum front. The new volume control with "Diamond Grip" further emphasizes the premium standard.
The model is available in, among other colors:
- Matte Black
- Matte White / Silver
Differences from the Standard Version
Compared to the regular MAESTRO Quantum, the Signature version has been specifically further developed technically and acoustically. sonoro relies on selected components, a revised circuit design, and specially tuned sound tuning in cooperation with audio specialist Rainer Finck.
Key enhancements include:
-
True Fidelity Mode for a particularly direct and unadulterated signal path
-
PureGain volume control with reduced background noise
-
Optimized analog and digital section
-
Even finer spatiality and detail resolution
-
High-quality "Diamond Grip" volume control
-
Audiophile Signature sound tuning
As a result, the MAESTRO Quantum Signature performs even more controlled, quietly, and naturally than the standard version – especially with high-resolution music sources and demanding speakers.
Technical data
Technology
| Feature | Details |
|---|---|
| Amplifier Technology | Hypex Class-D Amplifier |
| Output Power | 2 x 180 Watts at 4 Ω / 2 x 110 Watts at 8 Ω @ 0.1 % THD |
| Speaker Impedance | Suitable for speakers with 4 to 16 Ω |
| Tone Control | Bass, treble, and balance adjustment |
| Volume Control | Digital PureGain volume control, developed by sonoro |
| True Fidelity Mode | Reduces signal processing to the necessary minimum for exceptionally authentic sound |
| Additional Sound Modes | Adaptive Loudness function and other modes, e.g., for 2.1 systems with high-pass filter |
| Equalizer | Optimized EQ presets for sonoro speakers + Dynamic Bass function |
| Room Correction | Dirac Live Room Correction (license included, 20–500 Hz, optional measurement microphone required) |
| Display | 4" TFT color display with high resolution, graphical representation and automatic brightness adjustment |
| Encryption | WEP, WPA2 (PSK), WPA3, WPS |
| WLAN | IEEE 802.11 a/b/g/n/ac/ax, 2.4 / 5 GHz |
| Network | LAN network port |
| Station Search | Automatic and manual station search |
| Sleep Timer | Automatic shutdown with precise minute setting (5–90 minutes) |
| Favorite Memory | 99 memory slots for all music sources, max. 20 Spotify playlists/songs/artists |
| Operation | Remote control, sonoro audio app or directly on the device |
| Roon Ready | Yes |
| Smart Home Ready | Yes |
Connections & Playback
| Feature | Details |
|---|---|
| Radio | FM, DAB+ Digital radio and Internet radio |
| Podcast Mode | Yes |
| CD Player | Slot-In CD player (CD, CD-R, CD-RW, MP3-CD, WMA) with repeat and shuffle function |
| Bluetooth | Bluetooth® (A2DP, AVRCP) |
| Bluetooth LE Audio | Auracast™ Ready |
| Bidirectional Bluetooth | For wireless Bluetooth® headphones |
| Streaming | Apple AirPlay, Google Cast |
| Streaming Services | Spotify Connect™, TIDAL Connect™, Amazon Music™, Qobuz Connect™, Deezer™* |
| Network Protocols | DLNA, UPnP |
| Phono Preamplifier | For MM cartridges |
| HDMI | HDMI ARC |
| USB | USB-A and USB-C with charging and playback function |
| AUX-In | 3.5 mm jack |
| RCA Input | Gold-plated AUX-IN (RCA) |
| Outputs | Stereo Pre-Out, Line-Out |
| Phono Input | Gold-plated MM phono input |
| Digital Connections | Optical and coaxial inputs and outputs |
| Headphone Jack | 3.5 mm jack |
| Speaker Terminals | New high-quality speaker terminals |
| Power Supply | Integrated power supply unit (AC 220–240 V~50/60 Hz, 300 Watt) with power switch |
| Power Cable | With phase marking |
*Certain content is not available in all regions due to licensing rights.
Dimensions & Weight
| Feature | Details |
|---|---|
| Dimensions (W x H x D) | Approx. 452 x 120 x 279 mm (incl. antennas, without rotary knobs) |
| Weight | Approx. 7 kg |
Design
| Feature | Details |
|---|---|
| Casing | Hand-sanded wooden casing with high-quality lacquer finish |
| Front | Laser-cut aluminum front from one piece with floating optics |
| Controls | Solid metal buttons and rotary knobs |
| Volume Control | Newly developed Diamond Grip volume control |
Scope of Delivery
| Included Accessories |
|---|
| Remote control |
| Two AAA batteries |
| Power cable (2 meters) |
| FM/DAB wire antenna |
| FM/DAB telescopic antenna |
| External WLAN antenna |
| Quick Start Guide |
| Safety instructions |