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The goal: accurate, absolutely uncolored sound
Kelin & Hummel's aim with the O 300 D was to strive for nothing less than perfection in developing the best compact active reference monitor possible, with accurate, uncolored sound, superb transient response, and ideally shaped waveguides. The O 300 D is a monitor which draws upon all of Klein & Hummel’s years of experience in monitor design, which has been fine-tuned through extensive computer simulations and countless listening tests. It is indeed unique in its class, for it does in fact deliver superlative sound absent of colorations, precise bass response, picture-perfect dispersion patterns, and a stunningly real soundstage with remarkable image focus and depth.
The advantages of the three-way system
To authentically re-create the sound captured in a recording-particularly a recording of the human voice-an active three-way system was chosen. In comparison with two-way monitors, the 300 D offers clear advantages that have been discussed in detail earlier in this catalog. The sophisticated three-way design employed in the O 300 D makes this loudspeaker system extremely precise and revealing of detail, and it enables the mixing engineer to make critical judgments with supreme confidence.
Exact localization and extraordinary sense of space
By utilising a dense, new, extremely low-resonance material called LRIM, we were able to mould the waveguides required for optimal dispersion directly into the baffle. The elliptical shape of the high-frequency horn makes the dispersion angle in the vertical plane more narrow thus reducing the amount of early reflections off the console surface which would otherwise interfere with the direct sound from the speakers (comb-filter effects), thereby improving spatial definition. At the same time, the effective horizontal listening area is made wider, giving the recording engineer greater freedom of movement in front of the console. The use of LRIM has also made it possible to align the acoustic centers of the two drivers exactly on one plane, parallel to the baffle, thereby preventing time and phase coherency problems at the crossover frequencies. This allows the individual drivers to work together perfectly to produce a precisely detailed soundstage.
Superb sonic qualities
For a loudspeaker system to achieve extremely flat frequency response and create an authentic reproduction of the original sound, its components need to be of very high quality, carefully manufactured, and selected for their compatibility with one another.
The 8¼” (210 mm) cone woofer is made of a special lightweight polypropylene material that has excellent self-damping properties. Its long-excursion voice coil enables this driver to produce very low frequencies at high sound pressure levels with practically no distortion. In contrast to common bass-reflex systems, which tend to blur the low end, the acoustic suspension system of the O 300 D delivers tight, articulate bass which is strikingly clear, detailed, and natural, particularly in transients.
The midrange is handled by a treated fabric dome with a dia-phragm/voice coil of 3" (76 mm) in diameter. Since its mass is much lower than that of cone drivers, it has the advantage of being able to achieve superior impulse response and extremely uniform amplitude response. As a result, midrange reproduction is impressively true-to-life, especially with the human voice.
The high-frequency driver is equipped with a titanium/fabric dome that combines the transparency of a titanium dome with the low distortion of a fabric dome. This driver has been finely matched to its elliptical waveguide, ensuring exceptional directivity.
All three drivers are magnetically shielded, allowing you to place the speakers directly next to video monitors or computers.
|Active or Passive||Active|
|Number of Speakers||Single|
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