Audio Optimum MS62E

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The interaction between professional audio and audiophile music reproduction at home frequently leads to cross-pollination between the two areas. Initially, it was the compact near-field monitors MS6 and MS8 that inspired the powerful floor-standing speakers FS62 and FS82 (with initially internal electronics); now, the further developed FS62E floor-standing speaker with external electronics has led to a new monitor that meets the highest demands in the recording studio even more effectively.

The MS62E monitors, which can be used in both near-field and mid-field, combine maximum compactness, high sound pressure capability, and fundamental deep bass reproduction with an unprecedented level of precision and musicality, previously unheard of in a studio environment.

Maximum compactness automatically leads to a cubic form, which offers the largest internal volume with the smallest external dimensions. With a wall thickness of 22 mm and internal cross-bracing, an external edge length of 40 cm is sufficient to achieve the same internal volume as the over-one-meter-high floor-standing speakers. The choice of speakers is the same, as is the forward-facing and aerodynamically optimized bass reflex port at both ends. Due to the special arrangement of the individual speakers, which are mirror-symmetrical for left and right, in combination with the low crossover frequency and the precisely phase-parallel coupling of the 30mm silk dome tweeter to the top-mounted mid-woofer, the MS62E behave like ideal point sources with homogeneous radiation, providing unparalleled spatial imaging precision.

As with the previous M-6 to M-10 series, the entire electronics with phase-parallel active crossovers and six SINCOS full-bridge amplifiers have again been externalized in the new MS62E monitors. Adjustment options, which are mostly handled on the mixing console anyway, have been omitted, but the separate 19-inch 2U metal housing now contains two separate power supplies for the left and right stereo channels, as well as doubled storage capacity. Furthermore, the miniaturized multichannel amplifier, pushed to the limits of technical feasibility, can be upgraded with analog 6-band parametric equalizers for individual room calibration.

The current monitor series MS6 to MS10 can be retrofitted with adapter plates for external electronics. Externalizing the electronics has the advantage of eliminating microphonic effects. Although the entire electronics have been designed to be relatively insensitive to mechanical vibrations, the difference is audible at this high sound quality level. In direct comparison, active multi-way speakers with external electronics sound more open, calm, authoritative, and relaxed, while spatial imaging precision, neutrality, and detail resolution are significantly enhanced.

However, this only holds true if the 6-core connection cables from the power amplifiers to the individual speakers are of high quality. If, for example, such multi-core cables are used as typically found in professional PA systems, sound quality is degraded to such an extent that it is overall better to integrate the electronics into the speaker boxes and keep the connections as short as possible. This is partly because cables designed for PA systems are not twisted in pairs, which minimizes electromagnetic interference between the tweeter, midrange, and bass. Furthermore, such cables, to be as flexible and robust as possible, have rubber-like sheaths that negatively impact sound quality. Why this happens cannot yet be fully explained physically, nor can it be adequately measured using standard methods. However, what is clearly audible and reproducible, independent of time and place, should no longer be relegated to the "voodoo" corner, especially in professional studio settings.

As standard, the MS62E monitor system includes two 3.3m long special cables with 6 x 2.5mm² copper cross-section, where each pair of wires is twisted together. The three twisted pairs are enclosed by a braided cotton sleeve, a natural material that prevents static charge and remains acoustically neutral.

Sound quality can be further enhanced if each twisted pair is individually encased in a basalt fiber braided sleeve, and all three twisted pairs are enclosed by a larger basalt sleeve. The basalt contains a certain amount of iron oxide, minimizing both mutual electromagnetic interference between the three twisted pairs and external interference from high-frequency magnetic fields, without dampening high-frequency reproduction in the audible audio range. Due to the complex manufacturing process, the 6-core basalt cable HS4-SO8-TTP250-BA is only available at an additional cost. However, for previously unmatched precision, speed, and relaxed working conditions in the studio, the extra investment in the basalt cable is highly recommended.

Technical Data MS62E

Speaker cabinet dimensions: (40cm)³
Wall thickness: 22 mm MDF with continuous 13 mm radius
Internal volume: 44 liters
Weight: 19 kg
Standard finish: Textured lacquer in white
Tweeter: 30mm silk dome
Mid-woofer: 2 x 18cm cone with fiberglass-reinforced paper membrane
Design: Phase-parallel 2½-way system, bass reflex
Crossover frequencies: 120 Hz and 1.3 kHz
Lower cutoff frequency: 30 Hz (-3dB)

Amplifier housing: 19-inch / 2U
Weight: 8.5 kg
Output power: 200 Wsin per channel