Specifications

M&K Sales Training Outline
page 7
May 98
http://www.mksound.com
Amplifiers are designed as
integrated system with driver
and cabinet
The amplifier found in each M&K Powered Subwoofer is specifically
designed for that model's cabinet and driver. It is designed to drive
the specific load of the driver(s) used and to provide the desired re-
sponse for that driver in its cabinet. By designing the subwoofer and
its amplifier and driver components as a complete integrated system,
we get extremely flat frequency response; optimized transient re-
sponse; very deep bass response for the cabinet's size; maximum
amplifier efficiency by optimizing the amplifier to its driver's imped-
ance; and control of the system "Q" to deliver tight, musical bass.
M&K Deep Bass amplifiers electronically combine both inputs. Their
low-level "FROM PREAMP" inputs have a 15 K ohm impedance, and
their speaker-level "FROM AMPLIFIER" inputs have a 200 ohm im-
pedance. This means that the subwoofer will present virtually no load
to the amplifier driving the customer’s main speakers. Paralleled with
a Satellite speaker's 4 or 8 ohm impedance, 200 ohms is invisible to
that amplifier.
When we design a subwoofer, we start with a driver design opti-
mized for excellent transient characteristics, with low distortion and
high output capability. Once it is mounted in its cabinet, we can then
tailor the response of its amplifier to make the system's response per-
fectly flat to any frequency we desire, typically well below 20 Hz, even
in small cabinet enclosures. With a standard external amplifier, this
would not be possible.
M&K power amplifiers are optimized for the load presented by the
specific driver(s) used for that model. The amplifier is simply designed
for maximum performance when driving the load it sees from those
driver(s).
Deep Bass Subwoofer Drivers & Amplifiers
Present no load to the
main amplifier
Extremely flat frequency
response
Very deep bass response
from small cabinets
Maximum amplifier
efficiency by optimizing
for the driver's impedance
All M&K subwoofer drivers are designed by and manufactured ex-
clusively for M&K. Our designers take full advantage of the fact that
these drivers are used to reproduce only the lowest bass frequen-
cies, thereby allowing the drivers to be optimized for the best low fre-
quency transient response and lowest distortion.
For reduced distortion and improved definition, all of these drivers
have an undercut core, an asymmetrical voice coil mounting, and an
extremely linear magnetic motor design. Voice coil and magnet sizes
are matched to the sensitivity and power handling requirements for
each model's amplifier and cabinet.
Our best drivers (MX-5000 and M2C) add an aluminum shorting
ring, which substantially lowers distortion and increases linear cone
travel by further linearizing the driver's magnetic field forces.
M&K proprietary
high-performance
subwoofer drivers