Designed for continuous high power operation in a correctly constructed acoustic space, the M3 represents the fruit of a research and development program aimed at elevating main monitors above the realm of modified PA speakers. A pair of 300mm bass drivers are perfectly complemented by two 150mm piston midrange drivers employing massive 75mm coils. High frequencies are accommodated by a high power version of the 28mm ESOTAR T-330 DA dome tweeter, which enjoys a reputation as the finest dome tweeter available. All drivers are ferrofluid cooled, a benefit only made possible on low frequency drivers by the use of custom designed ferrofluid compounds applied to very tightly tolerated voice coil gaps – a feature absolutely unique to Dynaudio Acoustics.
The result is a very clean, dynamic and powerful speaker in which common problems, such as cone break up, thermal compression and phase misalignment have been almost eliminated. Frequency response is full and flat, and the overall transparency of sound leaves no doubt that the M3 truly advances the art of monitoring at high levels without sacrificing quality at more relaxing volume.
Levels from 85 to 120dBA exhibit essentially identical timbre allowing total confidence in mix decisions regardless of monitoring level.
Passive or Active
The M3 Main Monitor is available in both Passive and Active versions. Both versions employ the same sophisticated impedance corrected passive crossovers between midrange drivers and tweeter. The Passive version has internal links for simple adjustment of low frequency levels, and is primarily intended for user installation on rigid stands within a control room, although soffit mounting is entirely feasible. The bi-amped Active system uses an active external crossover offering full equalization capabilities together with dual-band electronic driver protection.
- Unique linear phase and frequency response.
- Every monitor matched to any other monitor within ą 1.5dB.
- 28mm ESOTAR soft dome tweeter with aluminum voice coil.
- Dual 150mm magnesium silicate impregnated polypropylene (MSP) midrange drivers with
75mm voice coils.
- Dual 300mm polypropylene bass drivers with exceptionally large 100mm aluminum voice coils,
offering dramatic improvements in power handling, bass response and distortion figures over conventional systems.
- Gold plated professional binding posts accepting heavy-gauge speaker cable.
- Heavy internal damping for minimum cabinet resonance.
- Thermal protection of the tweeter.
System 3-way Passive Main Monitor
(+/- 3 dB) 30 Hz - 20 kHz
Peak SPL 1m, pair
(IEC Short Term) > 129 dB peak
Peak SPL 2m, 5.1
(IEC Short Term) > 130.5 dB peak
Amplifier minimum 100 W (> 140 dB SPL @ 2.5m)
Sensitivity (2.83 V/1m) 90 dB
Impedance, Nominal 4 ohm
Impedance, HF (200 kHz) 5.9 ohm
Resonance Frequency 38 Hz
Internal Cabinet Volume 145 liters
Bass Principle Bass reflex
Crossover Frequencies 600/3700 Hz
Crossover Slope Woofer 12 dB/oct; Midrange 12 dB/oct; Tweeter 18 dB/oct
Tweeter Esotec 28 mm soft dome Magnetic fluid, Rear chamber, Pure alu wire voice coil, 4 mm die-cast alu front
Midrange 15 cm with 75 mm pure alu wire voice coil, One-piece molded polypropylene cone
Woofer 30 cm with 100 mm pure alu wire voice coil, One-piece molded polypropylene cone
Weight 55 kg
Dimensions (WxHxL) 555 x 775 x 505 mm
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