M1Active 520 & 620
2-WAY 75–WATT AND 95–WATT ACTIVE REFERENCE MONITORS
The M1Active 520 and 620 are the third generation of the acclaimed Alesis M1 Active Series. Both 520 and 620 models offer incredible bass and midrange definition and flat frequency response from their high-precision drivers and professionally–crafted crossovers.
With a bold new look, redesigned drivers, bass density control and EQ, these affordable, high-precision active reference monitors deliver superb sonic clarity.
_5" (520) and 6.5" (620) low frequency woofer for clear bass and midrange
_1" silk dome tweeter for smooth, detailed highs without harshness
_Bi-amplified design / tweeter – 25W (520) and 30W (620), woofer – 50W (520) and 65W (620)
_High-precision drivers offer lower distortion and smoother frequency response
_Acoustical waveguide for superior imaging with minimal diffraction
_1" thick front baffle virtually eliminates speaker resonance
_Magnetically shielded for close placement to video monitors in computer-based music production studios
_XLR and 1/4" TRS input connectors with volume control
_Low frequency density switch for acoustic space adjustment of the monitors
_Rear port design provides deep bass extension and increased SPL
_Hi, mid and low frequency EQ switches to accommodate user preference and sub-woofers
_Top mounted, integrated power switch/clip light bar
520:
Bi-amplified Design / Tweeter – 25W, woofer – 50W
Woofer. 5” lightweight, magnetically-shielded, ultra-stiff polypropylene cone with rubber surround and high power handling voice coil.
Tweeter. 1/4” silk dome with magnetic shielding.
Frequency Response. 56 Hz – 20 kHz.
Crossover Frequency. 2.8 kHz
Signal-to-Noise Ratio. >100 dB below full output, unweighted.
Inputs. XLR and 1/4” supporting both balanced and unbalanced cabling.
Polarity. Positive signal on “+” pin creates forward cone displacement.
Input Impedance. 20k ohms balanced or 10k ohms unbalanced.
Input Sensitivity. 85 mV noise (pink) produces 90 dB(A) output SPL at 1 meter. Gain knob turned fully clockwise (maximum).
Dimensions (W x H x D). 6.5” x 10.5” x 7.75” / 16.5 cm x 26.7 cm x 19.7 cm
Net Weight (each speaker). 13.0 lbs / 6.0 kg.
620:
Bi-amplified Design / Tweeter – 30W, woofer – 65W
Woofer. 6 1/4” lightweight, magnetically-shielded, ultra-stiff polypropylene cone with rubber surround and high power handling voice coil.
Tweeter. 1” silk dome with magnetic shielding
Frequency Response. 49 Hz – 20 kHz
Crossover Frequency. 2.8 kHz.
Signal-to-Noise Ratio. >100 dB below full output, unweighted.
Inputs. XLR and 1/4” supporting
both balanced and unbalanced cabling.
Polarity. Positive signal on “+” pin creates forward cone displacement.
Input Impedance. 20k ohms balanced or 10k ohms unbalanced.
Input Sensitivity. 85 mV noise (pink) produces 90 dB(A) output SPL at 1 meter. Gain knob turned fully clockwise (maximum).
Dimensions (W x H x D). 8.5” x 15.0” x 10.25” / 21.6 cm x 38.0 cm x 26.0cm.
Net Weight (each speaker). 21 lbs / 9.6 kg.
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