Conversion kit Beolab 4000 to Sonos electronics with Trueplay

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Home Forums For Sale & Wanted Private Sales Conversion kit Beolab 4000 to Sonos electronics with Trueplay

Viewing 19 posts - 1 through 19 (of 19 total)
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  • #47292
    carljh
    GOLD Member
      • Stockholm
      • Topics Started 3
      • Total Posts 29

      Convert your old and maybe broken Beolab 4000 speakers to a Sonos speaker Gen2 with Trueplay for optimal sound and keeping the nice B&O design. The kit include a complete Sonos electronics with special brackets for the Sonos mainboard, antennas, keypad, power supply and damping foam. Just disassemble the old Beolab electronics and install the new Sonos electronics, instructions included. Keypad, LED, network and 230 VAC will be located at back of the speaker, see picture. The original on/off button is replaced by a plug. You will keep the two speakers and the complete casing from the original Beolab 4000, the rest will be new.

      Price is 290€ per speaker including freight within EU. I am located in Sweden and ship with Schenker inside EU.

      For order or questions please contact me at carlj.hakansson@gmail.com or +46730257474

      Regards,

      Carl Hakansson

      IMG_0996

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      #47293
      Leosgonewild
      BRONZE Member
        • Topics Started 9
        • Total Posts 45

        Very impressive!

        how do they sound?

        #47294
        Stereomensch
        BRONZE Member
          • Topics Started 27
          • Total Posts 113

          This is a very interesting project.

          But what kind of amplifier do you use? Do you use the original B&O soundprofil?

          #47295
          carljh
          GOLD Member
            • Stockholm
            • Topics Started 3
            • Total Posts 29

            They sound extremely good, I will try to make a comparison with the original and come back. With the Sonos trueplay calibration, the frequency range will be flat.

            #47296
            carljh
            GOLD Member
              • Stockholm
              • Topics Started 3
              • Total Posts 29

              The kit include an Ikea Symfonisk amplifier and electronics (which is made by Sonos). This consist of a very powerful DSP which will calibrate the Beolab 4000 speakers to a flat frequency spectrum and a multiroom wifi active two way speaker.

              #47297
              matador
              Moderator
                • Paris France
                • Topics Started 47
                • Total Posts 730

                So it’s basically an 130€ Ikea Symphonisk shelf speaker guts connected to the Beolab 4000 drivers?

                I think I’ve seen the same mod with a Beovox C100 somewhere.

                #47298
                carljh
                GOLD Member
                  • Stockholm
                  • Topics Started 3
                  • Total Posts 29

                  Just to be clear, no Beolab 4000 drivers are present. The Beolab 4000 speaker elements are direct connected to the Sonos amplifier and all is 100% integrated in the Beolab 4000 cabinet.

                  #47299
                  Millemissen
                  BRONZE Member
                    • Flensborg————Danmark
                    • Topics Started 21
                    • Total Posts 1,045

                    The kit include an Ikea Symfonisk amplifier and electronics (which is made by Sonos). This consist of a very powerful DSP which will calibrate the Beolab 4000 speakers to a flat frequency spectrum and a multiroom wifi active two way speaker.

                    Did you test that?
                    As far as I understand DSP processing, you must know the characteristics of the used drivers/speaker units in order to let the DSP do it’s job.

                    MM

                    #47300
                    trackbeo
                    BRONZE Member
                      • Topics Started 7
                      • Total Posts 248

                      Really?  I thought it just listened to the output and calculated a boost as a percentage of the input, i.e. you could be driving cardboard (or flax!) with tubes, for all the DSP algorithm cared.  This is how Dirac Live can work inside a MiniDSP DDRC-24 (e.g.): Dirac knows nothing about the speakers or the amp, only what it hears from its microphone input when it sends out a known signal sweep.

                      And “speaker elements” == “drivers” colloquially so yes, s/he is indeed hooking up the inexpensive Symfonisk amp to the 4000’s drivers and bypassing or removing the electronics.  BeoWorld description claims 35 watt x 2 (ICEpower version mk.2), and supposedly the amplifier on the Symfonisk speaker is the TI TPA3116D2, a two channels x 30 watts per — so it could work OK unless you crank the volume up, maybe? [Edit: the DSP will take some headroom too.]

                      P.S. @carljh, kindly use your first sale to buy a gold membership here, in order to post to sell stuff.

                      #47301
                      carljh
                      GOLD Member
                        • Stockholm
                        • Topics Started 3
                        • Total Posts 29

                        You calibrate the rebuild speaker with Sonos Trueplay which is included in the Sonos app for Iphone and Android. The speaker play a frequency sweep which the phone pick up and adjust the speaker for a flat frequency response.

                        #47302
                        carljh
                        GOLD Member
                          • Stockholm
                          • Topics Started 3
                          • Total Posts 29

                          I have now made an initial sound test between the original Beolab4000 and the rebuild version with the Sonos built in amplifier. The result is very positive! It is a dramatically improvement with the Sonos amp! The sound is much more open, this is specially present with the voices. The bass is more precise and nuanced in the rebuilded speakers.

                          #47303
                          Millemissen
                          BRONZE Member
                            • Flensborg————Danmark
                            • Topics Started 21
                            • Total Posts 1,045

                            Questions?

                            Did you pair two rebuild speakers?

                            Which source did you use with the original BL4000’s?

                            MM

                            #47304
                            carljh
                            GOLD Member
                              • Stockholm
                              • Topics Started 3
                              • Total Posts 29

                              Yes, I rebuild two speakers and got two more as original.

                              I used Sonos Connect via the RCA input for the original Beolab4000  in order to make it as equal as possible.

                              #47305
                              carljh
                              GOLD Member
                                • Stockholm
                                • Topics Started 3
                                • Total Posts 29

                                You can read more about this BL4000 to Sonos upgrade at http://www.speakersuits.com

                                #47306
                                Steve at Sounds Heavenly
                                Moderator
                                  • Topics Started 53
                                  • Total Posts 368
                                  P.S. @carljh, kindly use your first sale to buy a gold membership here, in order to post to sell stuff.


                                  @carljh
                                  We do normally ask you to pay for gold membership before offering items for sale, in particular in this case it looks as though you are offering to sell this item commercially. Would you please be so kind as to purchase gold membership on the site so that you are helping to give something back to our community? Many thanks!

                                  #47307
                                  carljh
                                  GOLD Member
                                    • Stockholm
                                    • Topics Started 3
                                    • Total Posts 29

                                    Hi Steve,

                                    I wasn’t aware that you had these requirements you mention above. I have looked everywhere and can’t find how to upgrade to a gold membership nor how much it cost and how to pay?

                                    Regards,

                                    Carl

                                    #47308
                                    Guy
                                    Moderator
                                      • Warwickshire, UK
                                      • Topics Started 14
                                      • Total Posts 1,239

                                      Click the ‘Main Web Site’ link above (or under the Menu button if using a phone), then look to the right hand side below the LOGOUT button – you should see a link to ‘Upgrade/Renew Membership’.

                                      #47309
                                      carljh
                                      GOLD Member
                                        • Stockholm
                                        • Topics Started 3
                                        • Total Posts 29

                                        I am now a gold member and my main site profile state that but not on this forum? What its wrong?

                                        #47310
                                        Keith Saunders
                                        BRONZE Member
                                          • Hampshire, England
                                          • Topics Started 23
                                          • Total Posts 154

                                          I am now a gold member and my main site profile state that but not on this forum? What its wrong?

                                          Nothings wrong. Thank you for becoming a gold member

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