Bremen SL1 Plus

The Ideal HiFi Music Player for Quality-Focused and Active

Stream Freely, Stay Active, Rediscover Wireless HiFi

Silent Angel SL1 Plus builds on the success of B1 and B2, establishing the Bremen series as a benchmark for Hi-Fi streaming with exceptional media processing, sound quality, and compatibility. Designed for active music enthusiasts, the SL1 Plus combines affordability with seamless Wi-Fi streaming and decoding, delivering uncompromised audio quality for an effortless Hi-Fi experience.

Easy to Connect, Just Hit Play

Effortless Cost, Complete Experience

Lossless Music at Fingertips

Exclusive Innovative for All New Wireless Listening Experience

Flexible Connectivity Lossless Music

Wi-Fi and wired Connectivity for low latency, anti-interference listening

Versatile High-Resolution Format

Support A Large Number of High-Resolution Audio Formats for Digital Audiophiles

Hi-Res Streaming Platform Compatibility

Compatible with Most of the Major Streaming Platforms

Highest Fidelity Analog Performance

Delivers Authentic and Natural Music Reproduction

Advanced High-Frequency Filters

Effectively Reduce Noise for Unmatched Audio Quality

Seamless Operating Experience

Audio-Grade OS For interference-free playback

Wireless Streaming for a Versatile and Premium Listening Experience

Best Match for Amplifiers and Powered Speakers, With XLR balanced, RCA (single-ended), coaxial, optical, and USB audio outputs, Bremen SL1 Plus offers unmatched versatility. Easily connect to your amplifiers or powered speakers and enjoy CD-quality sound. Eliminate Bluetooth interference for better speaker performance and experience low-jitter, true Hi-Fi streaming. Integrate SL1 Plus to elevate streaming to high-end, lossless quality.

Flexible Connectivity for a Lossless Music Experience, The Bremen SL1 Plus ensures stable, jitter-free music streaming with wired and Wi-Fi connections. Minimizing latency delivers instant audio transmission for a seamless listening experience. Wired connections offer superior resistance to interference, preserving lossless audio within your network. Enjoy high-quality sound without the degradation commonly found with Bluetooth transmissions.

Advanced Wireless Streaming Player Engineering

Durable Design for Pristine Audio Performance

The SL1 Plus is engineered for lasting quality and elegance, featuring a galvanized steel chassis and a sleek aluminum alloy front panel. A meticulously polished aluminum bottom cover enhances its structural integrity and premium aesthetic, ensuring a robust foundation for superior audio creation.

Proprietary Audio Circuit Preserving Pristine Audio Fidelity

The SL1 Plus incorporates a low-power, HiFi-grade board with a six-core CPU and the VitOS operating system, perfectly integrating hardware and software for unmatched sound quality. A thick copper layer on the core board and SSD section ensures efficient heat dissipation, delivering stability, rapid cooling, and minimized interference. Advanced EMI shielding further reduces electromagnetic interference, guaranteeing a pure and immersive listening experience.

Separate DAC Board for Best Analog Output

Dedicated DAC board is housed within an aluminum enclosure to minimize power and digital circuit module interference. This design effectively separates analog and digital circuits, ensuring a cleaner and more precise sound output.

Custom Radar-Grade Switching Power Supply

The SL1 Plus incorporates a custom radar-grade switching power supply that guarantees stable, low-noise performance, essential for pristine audio playback.

Abundant Streaming Music Services.

Leading Music Streaming Platforms Embedded, Offering MQA Audio Decoding and Seamless Access to High-Quality Online Music Content through Various Sources Including Qobuz, Spotify Connect, DLNA, Airplay2 and Internet Radio.

Mobile App, VitOS Orbiter

Our robust and intuitive Streaming Platform enables users to easily locate and set up a new device, browse and stream music. Listen to all your favorite songs with details displayed including bit rate, sample rate, bit depth and format (e.g. DSD, WAV or FLAC).

Unlock Advanced Enhancements

Experience high-fidelity and stable audio transmission with the Bonn Series. Equipped with specialized anti-interference and noise reduction technology, it effectively reduces signal distortion and noise, ensuring exceptional audio quality and network performance.

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Product Specification

Color	Black
Power Input	IEC power socket (AC)
Control App	VitOS Orbite
Connections	① Wired (Gigabit Ethernet) ② Wi-Fi
Outputs	TOSLINK Optical (192KHz/24bits), Coaxial, USB Audio
Analog Outputs	XLR balanced, RCA unbalanced
USB Ports	USB 2.0 x 1, USB 3.0 x 2
SA-LINK Port	Available to connected AU and AUH devices, controlled via SA-Link.
Reset Button	Wi-Fi connection mode. Press and hold for 5 seconds to reset the Wi-Fi settings to default.
Memory	Low-noise 4GB
System storage	32GB High-speed flash storage
Processor (CPU)	Dual-core Cortex-72 at 1.8GHz + Quad-core Cortex-A53 at 1.4GHz
SSD Expansion	M.2 NVMe SSD (22*80mm), up to 4TB (not included)
Chassis	Galvanized steel with an aluminum front panel
Temperature	Operating: 32 ~ 86 °F (0 ~ 30 °C) Storage: -4 ~ 158 °F (-20 ~ 70 °C)
Humidity	Operating: 10% ~ 90% RH (non-condensing) Storage: 5% ~ 95% RH (non-condensing)
Dimension	439(W) x 50(H) x 250(D) mm (excluding antennas)
Document Download	SL1P Quick Start Guide