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