1.450,00 1.900,00 

A pair of full range CL-02 concrete speakers

Additionally: High-End Amplifier

SKU: CL-02 RAUBEIN Categories: , Tags: ,


CL–02 RAUBEIN concrete speaker

Our full range speaker drivers in the concrete CL-02 are able to reproduce the complete audible frequency spectrum. The benefits of using full range drivers are many, especially when used in small speaker systems. Without the need to transition between differing specialised drivers, they are perfect for reproducing clear vocals. In addition, the selected internal components result in balanced and linear sound, perfect for desktops as well as for the living room. Given their dimensions, the CL-02 concrete speakers are surprisingly powerful.



A rigid speaker box that does not vibrate is ideal, concrete is a perfect material for that and in fact gives a great advantage. A speaker box should only reproduce sound given by its source and it should only be the speaker components’ membrane that vibrates.

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As it is sourced from close to a single point, our conctrete speakers allow for perfect spatial depiction.


Concrete speaker setup

The RAUBEIN concrete speakers can be used for both a capturing music experience in stereo mode (two speakers) as well as for vivid sound landscapes in home theatre applications (five or more speakers). Our speakers are compatible with any common audio amplifier.


Technical data

  • Frequency range (-3dB): 60-20.000Hz
  • Power handling: 50W RMS, 80W Music
  • Impedance: 6Ω
  • Sound pressure (2,83V/1m): 82dB
  • Dimensions: (HxWxD): 26,8 x 15,5 x 17,2cm
  • Weight: 5,9kg (per speaker)




Additionally to the concrete speaker:

Despite its size, the recommended digital amplifier from Pro-Ject when combined with our speakers performs very well, providing a lot of power and excellent sound quality. It offers nearly all possible input variations where a total number of nine different sound sources can be connected, including a phono pre-amp for a vinyl player as well as Bluetooth. The small unit even contains a USB socket to connect with its inbuilt sound card so that high-resolution media can be played directly from a PC, such as FLAC.

Its input channels and volume can also be selected remotely, and when the volume is increased via the remote control, the knob on the high-end amplifier, which is motor driven, turns automatically.

Stereo High-End Amplifier

High-quality phono MM preamp  

3 analogue line level inputs  

XMOS asynchronous USB 24bit/192kHz input for computer audio  

Digital coax input  

2 Toslink inputs  

Wireless Bluetooth streaming (aptX capable) input with dedicated antenna  

  • 2x 25W / 37W @ 8 / 4 Ohms
  • 2 ohms drive capability
  • Dual mono design principle
  • Inputs: 3x stereo line, 1x phono (RCA), 1x Bluetooth (aptX), 2x dig opt, 1x dig coax, 1x USB
  • XMOS asynchronous USB 24bit/192kHz
  • 24bit/192kHz D/A converter
  • 4th generation Bluetooth with aptX capability & antenna
  • Phono input with MM capability
  • Volume control with motor driven potentiometer
  • Headphone output
  • Variable output for subwoofer or second zone amp
  • IR remote included
  • Full metal casing, silver or black faceplate
  • Dimensions: (HxWxD): 20,6 x 3,6 x 20cm
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