Compact Two-Way Speaker
MR8
SPEAKER
MR8
oF 6 PAGES
6
O F 6 P A G E S
Architects’ and Engineers’ Specifications
The two-way loudspeaker system shall be self-contained
and consist of the following components: (1) a low-frequency
driver; (2) a constant directivity horn driven by a dome
tweeter driver; (3) a two-way crossover network; (4) a vented
enclosure.
The low frequency transducer shall be a cone type loud-
speaker having a carbon fiber cone with a diameter of at
least 8 inches (200mm). The cone shall be fitted with a high
compliance foam surround and treated to resist moisture. It
shall have a voice coil that is at least 1.5 inch (38mm) in
diameter and present a nominal 16-ohm load impedance to
the crossover network. The loudspeaker shall be constructed
with a cast aluminum basket.
The high-frequency section shall consist of a constant
directivity horn driven by a titanium dome tweeter having a
diameter of at least 1 inch (25mm). Its voice coil shall be
treated with Ferrofluid
®
to aid in cooling. It shall present a
nominal 16-ohm load impedance to the crossover network.
The constant directivity horn shall have an integral phase
correcting, mechanical equalizer.
The system shall be crossed over by an internal, high-
level, passive network having a response of 12 dB/octave
and equalization for the constant directivity horn. The nomi-
nal crossover frequency shall be 1.6Hz. The low-pass section
of the network shall have minimum inductance in series with
the low-frequency driver. A dynamic high-frequency protec-
tion circuit based on a low-value, low-mass filament resistor
shall limit the current available to the high-frequency driver.
The crossover network shall present a nominal 8-ohm load
impedance to the power amplifier.
The enclosure shall be a vented design. It shall be con-
structed using high density polystyrene and finished with
black (or white), scratch resistant paint. It shall be trapezoidal
in shape with 45° angled sides. A full size, detachable, perfo-
rated steel grille, finished in black (or white) scratch resistant
paint shall be provided. At least 8 reinforced threaded metal
sockets (3/8" and M6) for attaching optional mounting hard-
ware shall be provided. The overall dimensions of the enclo-
sure shall not exceed (HxWxD) 16.94" x 11.42" x 10.24"
(430mm x 290mm x 260mm). The total weight of the loud-
speaker shall not exceed 21.6 lbs. (9.8 kg). Connections
to the loudspeaker shall be two color-coded, spring-loaded
push connectors.
The loudspeaker system shall have an overall frequency
response of at least 50Hz–21kHz when measured to –10 dB
and at least 70Hz–20kHz when measured to –3 dB. It shall
have a nominal average coverage pattern of at least 110°
horizontal by 90° vertical to –6 dB when measured between
800Hz and 16kHz. Calculated 1W/1m sensitivity shall be at
least 91 dB when measured in the far field between 300Hz
and 3kHz. Maximum SPL shall be at least 120 dB at 1m. The
loudspeaker shall be rated for continuous operation at 300W
IEC with 1200W peaks.
The two-way loudspeaker system shall be a model MR8
(MR8W - white) manufactured by Mackie Industrial
www.mackieindustrial.com
16220 Wood-Red Rd. NE, Woodinville, WA 98072 USA
888.337.7404, fax 425.487.4337, [email protected]
UK
+44.1268.571.212, fax +44.1268.570.809, [email protected]
ITALY
+39.0522.354.111, fax +39.0522.926.208, [email protected]
FRANCE
+33.3.8546.9160, fax +33.3.8546.9161, [email protected]
GERMANY
+49.2572.96042.0, fax +49.2572.96042.10, [email protected]
Electronic files for this product available at:
www.mackieindustrial.com
This Specification Sheet MR8.PDF
Quick-Start Manual MR8QS.PDF
Mackie Designs continually engages in research related to product improvement. New material, produc-
tion methods, and design refinements are introduced into existing products without notice as a routine
expression of that philosophy. For this reason, any current Mackie Industrial product may differ in some
respect from its published description, but will always equal or exceed the original design specifications
unless otherwise stated. ©1999-2002 Mackie Designs Inc. All rights Reserved. Mackie and the "Running
Man" figure are registered trademarks of Mackie Designs Inc. Mackie Industrial is a trademark of Mackie
Designs Inc.
part no. 910-196-10 Rev.C
(continued Architects’ & Engineers’ Specs)
SPEAKER
