mbl 321e mbl 300e mbl 31 1e monitor speakers by
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monitor speaker mbl 300 e mbl 311 e mbl 321 e · 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 mbl 300 e 311 e · soft dome tweeter with excellent linearity ±0.5 db · midrange driver utilizes a lightweight stiff kevlar membrane for fast pulse response · 2 woofer drivers with black anodized aluminum cones in separate chambers mbl 300 e · newly developed crossovers made from top-class materials air coils metal-oxide resistors · crossover design for bi-wiring bi-amping mbl 300 e mbl 311 e · wiring with top-quality low oxygen single crystal occ/ofc copper cables · low-resonance 22 mm mdf cabinet · 60 mm driver panel thickness mbl 300 e · unique exterior asymmetric panel face with curved edgesreduces edge defraction · prefabricated cabinet base for mounting to mbl custom designed acoustically correct stands mbl 311 e mbl 321 e an
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mbl 300 e this model is a 31/2-way 4 ohm 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 provides unshakeable stability the mbl 300 e 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 whereupon the other drivers can build their free spatial sound spectrum with absolute reproduction of the original sound stage mbl 311 e this model is a 21/2-way 4 ohm bookshelf speaker in common with the mbl 300 e the cabinet utilizes a 170 mm kevlar cone now as a woofer/midrange driver a 28 mm soft dome tweeter and the magnetostatic super tweeter the sound blooms from the speaker rich in nuances with high resolu
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technical layout the unique bass drivers used in the mbl 300 e 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 spea 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 such as kevlar midrange 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
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super tweeter over the 28 mm dome a new magnetostatic driver is used as a super tweeter the decision to use this design is the result of some fundamental physical considerations for the representation of frequencies exceeding 30 khz in an authentic way only a ribbon tweeter electrostatic or as in this case a magnetostatic transducer can be considered ribbons and electrostats have disadvantages compared to a genuine magnetostat for example an electrostat requires a separate high voltage power supply to the transducer and has a smaller dynamic range as compared to a magnetostat a ribbon tweeter does not offer the longterm stability and has a very narrow sound dispersion only the magnetostat comprises all the advantages such as extremely low mass resulting in a perfect transient response high dynamics transparency and fidelity in detail no partial oscillation good radiation characteristics linear frequency range up to over 50 khz accustically neutral foil no sonic signature
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mbl · einemstrasse 20 a d -10785 berlin · phone +49 30 851 80 74 · fax +49 30 851 80 62 · e-mail mbl_hifi_germany@csi.com · www.mbl-hifi.com
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