Impedance (Z)(O) : 5
Resonance Frequency (Fs)(Hz) : 630
Nominal Power Handling (Pnom)(W) : 80
Sensitivity (2.83v/1m)(dB) : 92
Weight (M)(Kg) : 1.6
VC Diameter (mm) : 50
DC (Re)(O) : 4.3
Former : CCAW
VC Frame : Aluminum
VC Layers : 2
Magnet System : Shielded
Magnet Former : Ferrite
Recommended Crossover Frequency (Hz) : >800 <6000
command for DMA by US authorized magazine :
"DMA obviously is of top field."
"Do China really just can manufacture low-end loudspeaker?
Please reconsider that DMA midrange is as good as the competitors
from Europe. Swans headquarter is in Canada, but the production
base is in China.
-Vance Dickason US Pro V.C Magazine Dec, 1995.
HI-end reference grade midrange loudspeaker is the new improvement
DMA-A new low-distortion leading resonance style structure
midrange loudspeaker applied natural fiber knit special damp of
50mm ball top midrange film membrane with natural and accurate
sound. High power aluminum framework voice coil match with
aluminum surrounded line packed with copper can increase power
output and leading resonance structure, reduce Q value of unit
resonance and distortion, widen frequency response scale.
Special Swans double alnico full symmetry magnetic circuit system
and low-distortion leading resonance style structure have high
sensitivity and lowest distortion. There is a vent at low
distortion leading resonance style structure on the back of
midrange loudspeaker film membrane; the exit of vent is a big
volume strong sound absorption non-resonance sealed back cavity.
The vibration system includes: film membrane, voice coil, small
quantity of air volume on the back of film membrane, and a reflex
acoustics resonance system.
Because the mostly distortions of midrange loudspeaker occur at
resonance frequency phrase, it can reduce phrase distortion
through several of low distortion leading resonance structure, and
makes the whole working frequency response are in the working
situation of low distortion. Otherwise, even if the filtered but
unclean low frequency signals are input, but no noise with
DMA-A suit for advanced monitor system for midrange units.