Bluesound Professional

CS1 Endpoint Network Streamer

The CS1 Endpoint Network Streamer supports the most popular network streaming and casting protocols, including Bluetooth, Apple AirPlay 2 and Google Chromecast, so users can stream directly from devices like smartphones, tablets and computers. The CS1 can play high-resolution audio, up to 24-bit/192kHz, with MQA pass-through support for both digital outputs, enabling full decoding and rendering by a compatible external DAC for playing Master Quality Authenticated music.

Features & Details

  • Bluetooth 5.0
  • Dual-band Wi-Fi
  • Gigabit Ethernet port
  • Stereo analog, optical digital, and coaxial digital outputs
  • Premium differential DAC design based on Texas Instruments PCM5141 DAC, with support for 24-bit/192kHz high-resolution audio
  • MQA decoding and rendering capability for high-resolution music streaming from Tidal
  • Support for Apple AirPlay 2 allows for streaming from any audio app on an iPhone, iPad, or Mac
  • Google Chromecast support allows playback at up to 24-bit/96kHz resolution from any Cast-enabled app on a smartphone, tablet, or personal computer
  • Spotify Connect and Tidal Connect support lets users cue up music on a smart device, then transfer playback to the CS1
  • DLNA support allows streaming at up to 24-bit/192kHz resolution from any DLNA-capable music app



THD + N (20 Hz – 20 kHz)

<0.03% 20-20 kHz -1dBFS output

Signal-to-Noise ratio

-94dB (ref 2V)

Frequency response

20-20 kHz +/-0.3dB; 50 kHz -3dB

Native sampling rate

Up to 192 kHz

Bit depth


Supported audio file format

LPCM, MP3, AAC/AAC+, AC3, Ogg Vorbis, HE-AAC, WMA decode capability

Supported 3rd party service provider

Spotify Connect, Tidal Connect, Apple AirPlay 2, Google Chromecast, DLNA, Roon


TI PCM5254


ARM® Cortex™ -A53, Quad-Core, 1.5GHz per core



AC adapter
Input: 100-240V AC 0.3A
Output: 5V DC 1A

Network connectivity

Ethernet RJ45 100 Mbps
Wi-Fi 5 (802.11ac 2.4GHz/5 GHz)


Bluetooth 5.0
BT Profiles: A2DP 1.2, AVRCP 1.3, SPP, HFP, HSP, HOGP


NFC for easy Bluetooth connection

12V Trigger Out

3.5mm Mini-jack x 1

Analog Out

RCA x 1

Coaxial Out

RCA 75 ohms

Optical Out



USB C for AC adapter

* Certification in progress as of publishing date


Status Indicator

Front Panel LED

Function Button

Front Panel Function Button

Power Consumption

0.5W Network Standby




Gross dimensions (W x H x D) **

140 x 140 x 55 mm (5.5 x 5.5 x 2.16 in)

Net weight

1.5 kg / 3.3lbs

Shipping weight

1.7 kg/ 3.8lbs

** Gross dimension includes feet and other extended front and rear panel terminals.


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