This model is a 3½-way 4 Ω floor standing speaker. For the
reproduction of low-bass two very stiff aluminum drivers are used. The other
frequencies are reproduced via a 170 mm midrange speaker with Kevlar membrane,
a 28 mm soft dome tweeter and a magnetostatic super tweeter. The 60 mm sound
panel made of laminated MDF, providesunshakeable stability.
The mbl 300E
produces a bass that practically :lives" in the room and maintains a flat
response to the lowest ranges. Even at extremely high volume levels there are
no signs of stress. Thus, a sound basis is created whwereupo the other drivers
can build their free, spatial sound spectrum with absolute reproduction of the
original sound stage.
Features:
Magnetostatic
super tweeter, for ultra high frequency bandwidth features a 4 mm aluminum
mounting plate with sound dispersion grooves
Super
tweeter housed in a separate closed chamber to avoid air compression
Soft
dome tweeter with excellent linearity ±0,5 dB
Midrange
driver utilizes a lightweight stiff Kevlar membrane for fast pulse response
Two woofer
drivers with black anodized aluminum cones in separate chambers
Newly
developed crossovers made from top-class materials (air coils, metal-oxide
resistors, etc.)
Crossover
design for bi-wiring, bi-amping
Wiring with
top-quality low oxygen single crystal OCC/OFC copper cables
Low-resonance
22 mm MDF cabinet
60 mm driver
panel thickness
Unique
exterior asymmetric panel face with curved edges-reduces edge defraction
Prefabricated
cabinet base for mounting to MBL custom designed acoustically correct stands
The unique
bass drivers used in the mbl 300E are equipped with newly developed, high
quality, black anodized, aluminum cones which constitute a significant
breakthrough in performance. Never before have drivers of this size been able
to produce such prodigious bass response. We have succeeded in silencing
secondary vibrations by adding magnesium to the cone material. Over and above
there are two woofers in each speakers, the work load is reduced. As a
consequence, bass reproduction is fast, powerful and very deep.
The cone is
the most critical factor to the sound of a modern midrange driver. Overlooking
certain aspects of a cone's structure and design, especially maximizing
stiffness without regard for good selfdamping, results in less than musical
sounding drivers. Colorations created within the material of the cone cannot be
eliminated by fancy crossovers. Because the sound of the cone so directly
dictates the sonic signature of the loudspeaker, great attention was spent
researching the ultimate cone material.
The result
of our effort is the Kevlar material that we believe sets a new reference in
reproduction. The Kevlar material combines the precision and transparency of
hard cones with the smoothness and
musicality of softer materials.
The
benchmark 170 mm driver with the lightweight and extremely stiff Kevlar
membrane is part of the mbl 300 E midrange. Its response is extremely precise
and fast. Open construction eliminates compression effects allowing for the
very finest nuances to be reproduced in a dynamic and genuine way. Having this
extremely rigid and lightweight membrane allows a higher crossover frequency,
optimal to the tweeter.
The
extraordinary 28 mm dome tweeter can be operated in a frequency range of 450 Hz
to 27 kHz with a linearity of ±0,5
dB. This ismade possible by innovative engineering that avoids air compression
behind the dome. A large volume of copper surrounds the magnet center pole
absorbing heat. Ferro fluid, normally used as the cooling medium for the voice
coil is fuly avoided. Thus the moving
coil is fully avoided. Thus the moving coil responds to the smallest current
impulses and converts themn immediately into movement. Inn our speaker design
this driver is used from 2,5 kHz far above the low-end cutoff frequency.
Specifications:
Frequency
Range: 31 Hz - 50,000 Hz
Crossover
Frequencies: 140 / 2500 / 30,000 Hz
Enclosure
Type: 32 Hz, B4
Power
handling: 100 W / 160 W
Impedance: 4 Ω
Sound
Pressure Level (SPL): 86 dB / 1W/1m at
2V, 4π
Linear max. : 112 dB / 4π/ 570 W/4 Ω
Dimensions
(W x H x D): 10 x 47,5 x 17 inch
Weight: 99 lbs
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