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Magneto Dinamic Loudspeakers

There are 4 type of Magneto Dinamic Loudspeakers tecnology:
1 - Ribbon
        used in the range 150-40000Hz
        high dinamic efficiency about 86db
        schema

2 - Planar
        used in the range 10-300Hz
        efficiency about 86db
        schema

 3 - Ribbon Push Pull
        used in the range 300-40000Hz
        very low THD
        schema

4 - Stage Accompany
        used in the range 2K-40000Hz
        very low THD
        high efficiency 95db
        schema 1 schema 2 schema 3

The best membrane are in kapton 5-12micron, cooking paper or mylar

Stage Accompany SA8520

photo
specifications
diaphram design
diaphram photo

Stage Accompany home page

SKY 1 project

This is a ribbon
 
  • size (only the ribbon)
  • response (only the ribbon)
  • specifications (only the ribbon)
  • costruction 1 (inside the ribbon)
  • costruction 2 (inside the ribbon)
  • electric connections (only 3 intead 6)
  • flux - flusso
  • note to build it You need for each loudspeakers 102 magnets with this size 75x16x11 mm magnetized on the 11 mm. The diaphram is alluminium 8 micron + polipropilene 12 micron 1275x19 mm

    CARVER

    This is a ribbon

  • FEATURES and SPECIFICATIONS
  • Technical Details on Carver's Line Source Dipole
  • Carver Amazing Platinum IV Ribbon Driver
  • Carver Amazing Platinum IV Crossover
  • Ribbon smoothing - 1
  • Ribbon smoothing - 2

    STRATHEARN MRHF

    This is a push pull with low resistence

     

  • Technical Details
  • Specifications
  • Some measures
  • I have more materials as crossover suggestion

    FOSTEX

    FS41-RP (band 200-1000Hz) & FS21-RP (band 1KHz-10KHz) are push pull FS7-RP is a ribbon (ft=38KHz)

    GZ2001 Fostex loudspeakers (use all this drives)
     

  • FS41-RP internal specification
  • ACR project with Fostex FS21-RP & FT7-RP

    Where buy full range Fostex Loudspeakers:     EIFL export

    THE LA FOLIA COLLECTIVE DEVELOPMENT PROJECT by Mogens Gallardo

    This is a ribbon + planar

     

    MAKE YOUR OWN MAGNETOSTATIC HIGH-END LOUDSPEAKER! La folia project mirror here look here - laFolia site!

    help to build it at home

    The best diaphram is the kapton 5-12 micron
  • Where to buy kapton DuPont Italiana (only for ITALY) tel. 02-253022332/2326 (Sig. Bonacina / Signora Calzoni). Dupont home page Kapton Dupont home page

    Cool Link on this type of loudspeakers

  • Planar Mid/tweeter design page
  • mirror on my pages This is a push pull
  • LFT Design Concept This is a push pull