These models are the ”long excursion” versions of types
SP1500/1510. They are dedicated to being used when applications
require low-midrange extension capability together with high SPL.
Their particular design ensures that they perform without any
compromise in sound quality, making these models optimum for
sound reinforcement systems as well as studio monitoring.
Their preferred frequency domain starts from 400Hz (single unit)
or 300Hz (dual driver) in direct radiation, while 200Hz is possible
when horn is mounted.
PROGRESSIVE WAVE DIAPHRAGM optimized for low-midrange
extended frequency domain.
The M17/E17 Series design is based on the PROGRESSIVE WAVE
mechanical behavior of the radiating area.
In this principle, the membrane is considered as a mechanical
transmission line which should receive a constant given velocity
together with critical damping properties to work properly.
This leading edge technology offers substantial sonic advantages.
Among them : very low mechanical energy storage in the cone
(avoiding standing waves) which ensures coherent sound, fast
transients, stable sound imaging, high sensitivity, wide frequency
range and very-low directivity pattern.
VENTED COMPACT MAGNET SYSTEM. It has been carefully
optimized to obtain maximum transducing efficiency while
avoiding unlinear behavior such as coil inductance variation with
position, flux modulation, harmonic distortion, rest position offset,
air compression and off-axis voice-coil pushing.
Its design incorporates a T-shaped and vented pole piece,
and a flux stabilization ring. It also takes into consideration
demagnetization at cold temperatures.
INTERCOOLER SYSTEM (patented). Entirely integrated into the
loudspeaker itself, the
INTERCOOLER SYSTEM extracts the heat
produced by Joule effect in the voice-coil by the means of an air
flow directed through the heatsink rims of the basket by the
motion of the dust-cap and the spider.
The gain brought about by this technology is over 20 % of extra
power, so for example, a 3”coil according to this design has
the same power handling capacity as a classical 4”one.
6.5” Midrange Extended Drivers
High Sound Pressure Level
High Sounding Quality
Power handling capacity 250 W AES
Reference efficiency(1W @ 1m) 97 dB SPL
SPL max (continuous) 117 dB SPL
Usable frequency range 300-5000 Hz
Environmental withstanding Outdoor
NOMINAL DIAMETER : 166 mm.
FRAME : High tensile alloy pressure
die-cast basket with patented
MAGNET SYSTEM : 2”highly energized,
heat extracting design with vented
pole piece and flux stabilizing ring.
VOICE COIL : High-temperature
stabilized, copper-clad aluminum
ribbon wound on vented high-strength
glass polyimide former.
CONE ASSEMBLY : High-strength
cellulose fiber cone impregnated and
coated on both sides with damped
resins, fitted with central carbon-fiber
dome, high-speed flat damped
surround and acoustacally damped
SPEAKER MASS : 2.15 Kg.