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strophlex

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  5. SOLD: MB6582 expansion box PSU,VCF,VCA

    in Fleamarket

    Posted · Edited by strophlex

    Update: The box is now sold.

    Hello!

    I have sold my MB6582 and thus have no use for my 1U rack mounted eight channel PSU/VCF/VCA expansion box.

    It contains :

    PSU: 230V input. Powers all Components in the box plus the MB6582 via a cable that fits the MB6582 power input connector.

    DA-converters: Four nicely soldered AOUT_NG boards control the filters and VCAs. They are controlled from the MB6582 via the expansion port.

    Analog filters: Four SSM2044 boards fitted with eight SSM2044 chips, relays and styroflex capacitors. Audio is fed into the filters from the MB6582 via audio jacks.

    VCA: Two SSM2154 boards for amplitude control of all eight audio channels. VCF output is fed into VCA input.

    I haven't used the box for a few years. Last time I used it everything worked well but because of all wiring, the box is sold as is. You should be able to trouble shoot if needed. I can guarantee that all boards are good though!

    Based on historical prices for the individual boards, I am asking $800 / €700 plus shipping and if lack of interest I will sell individual parts of the build. Any suggestions are welcome.

    All the best, Johan

     

    031716synth.thumb.jpg.9241d5f6a4bb122445

    031716synth_1.thumb.jpg.1b35b3082e327dc8

  6. Fågelsträck

    in Songs & Sounds

    Posted · Edited by strophlex

    I got a bit nostalgic and listened to some of my old songs.

    This song was made five years ago semi live with my at the time newly built MB-SEQ v4 controlling software synths.

    I didn't post this before but now got surprised how complex and polished it sounds.

  11. FS: MB6582 allmost complete

    in Fleamarket

    Posted

    The board worked fine with my PSU so all I know is that there must be some problems with graantjes psu. Either it was too weak, it was broken or the was some trouble with the pinout but I am pretty sure he ruled that out.

    The PSU on ebay is probobly strong enough and probobly noisy as Hawkeye says. I have only used linear PSUs with my MB6582 and they have all worked fine.

  12. FS: MB6582 allmost complete

    in Fleamarket

    Posted

    He used to live in Begium, but has now relocated to Germany. I helped him with trouble shooting, first in the forums and pm and then when he hat tried all my ideas he sent me the base pcb and I concluded that the device worked like it should using my psu. All soldering looked good.

  15. Encoder accuracy (bourns) MB-6582?

    in MIDIbox SID

    Posted

    I have the same problem with my encoders on the mb6582. Never realy tried to trouble shoot it though as i thought it was just the way it worked. But i agree it is anoying. I have the encoders from voti.nl so i doubt it has anything to do with specific encoder types except for configuration.

  24. Filter and PSU box for MB6582

    in MIDIbox SID

    Posted · Edited by strophlex

    AOUT_NG

    Each core is connected to AOUT_NG via J6.

    +/-12V is supplied from PSU.

    VCF

    Audio from the SID is connected to audio in of SSM2044 board

    CV 1&3 is connected to cutoff of SSM2044 board (bipolar mode)

    CV 2&4 is connected to resonance of SSM2044 board (unipolar mode)

    +/-12V and gnd is supplied from PSU.

    Bypass relay connected to pin 1 of J5.

    VCA

    Audio from the filter is connected to audio in of the SSM2164 board.

    CV 5&6 of AOUT_NG module is connected to CV in of the SSM2164 board (unipolar mode)

    +/-12V and gnd is supplied from PSU.

    Audio out from here.

    Then a lot of calibration... Good luck!

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