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M1 ACTIVE REFERENCE MANUAL 35
Customers outside the USA and Canada:
Contact your local Alesis distributor for any warranty assistance. The Alesis Limited
Warranty applies only to products sold to users in the USA and Canada. Customers
outside of the USA and Canada are not covered by this Limited Warranty and may
or may not be covered by an independent distributor warranty in the country of sale.
Do not return products to the factory unless you have been given specific instruc-
tions to do so.
S
PECIFICATIONS
Enclosure
Materials and Construction
Front baffle painted in metallic charcoal-gray, one inch (1”) thick MDF with radiused
edges to minimize diffraction. Sides and rear baffle covered in metallic charcoal-gray
vinyl laminate, over five-eighths inch (0.625”) thick MDF.
Multiple, internal, random spaced and length edge boundary cleats break up and
elevate common frequency mode aberrations.
Dual ports with 45° inlet and flared, front baffle outlet allow precise, phase accurate
woofer-to-port frequency transition. Ports also aid in cooling internally mounted
primary amplifier heat sink.
Flush mount, rubber woofer trim ring allows consistent power response
characteristic at wide off-axis angles. Flush-mount tweeter plate and Alesis M1
Active logo/pilot light plate also assure smooth off-axis response.
UL-approved fiberglass acoustical damping material damps internal mid-frequency
reflections from rear of woofer cone before entering port, lessening IM distortion.
Transducers
Low frequency driver:
6.5” (165mm) diameter dynamic driver with proprietary non-woven carbon fiber
(NWCF) cone and 1.5” diameter, long-wind voice coil.
Santoprene surround with moderate internal damping and constant linear
displacement Nomex spider. ±5 mm X-max excursion capability.
Dual magnet structure uses top magnet in opposed (“bucking”) configuration for
magnetic shielding (≈10 gauss at outside edge of cabinet).
High frequency driver:
1” Japanese-silk-dome tweeter.