Mackie MR8 User manual

Monitor Series Compact Full-Range Speaker
MR8
SPEAKER
 The MR8 is the result of extensive research in
the development of new transducers and crossover
design. The result is a product with exceptional
del-ity, the ability to produce deep controlled bass
and extended high frequencies without sacricing
efciency.
 The low-frequency 8" driver's low-mass, carbon
ber diaphragm remains extremely rigid at high power
levels, producing a more linear response and lower
distortion. The cone is tted with a durable foam
surround and treated to resist moisture. The high-
frequency section features a constant directivity horn
with a built-in mechanical phase equalizer. The horn
is driven by a Ferrouid® cooled, 1" titanium dome
tweeter.
 The system is nominally crossed over at 1.6kHz by
a 12 dB/octave network, which uses markedly lower
(than conventional) inductance values in series with
the woofer. This design reduces sound delays associ-
ated with high inductance values and provides excel-
lent low frequency transient response.
 All components are housed in a vented enclosure
formed from semi-expanded polystyrene foam that is
extremely strong, lightweight and weather resistant.
Threaded metal sockets are molded into the cabinet
to facilitate quick, safe deployment of the MR8, as
a single unit or in arrays, using specially designed
accessory mounting hardware. The speaker system
is available in black or white (MR8W).
 The MR8 is a part of Mackie Industrial’s Monitor
Series, which includes two-way constant directivity,
compact speakers in easily installed enclosures.
 This Mackie Industrial product is covered by an
exclusive, one-time, NO FAULT repair policy in addition
to a ve year limited warranty.
Features
 8" cast aluminum basket, high-efciency carbon
ber woofer
 110° x 90° constant directivity horn with Ferrouid®
cooled, 1" titanium dome tweeter
 Built-in, LICC low inductance passive crossover with
high frequency dynamic protection
 Lightweight, UV/weather resistant, high density
polystyrene, trapezoidal shaped enclosure for multiple
applications and minimum visual intrusion
 Integrated mounting points for use with optional
mounting hardware
 Exclusive Mackie Industrial — one-time, NO FAULT
repair policy
 Five year limited warranty
oF 6 PAGES
1OF 6 PAGES
MR8
A P PL I C AT I O NS
 Foreground/Background Music
 Distributed Speech Reinforcement
 AV Production/Playback
 Near-eld Monitoring
MR8W

oF 6 PAGES
2OF 6 PAGES
Compact Two-Way Speaker
MR8
SPEAKER
MR8
oF 6 PAGES
2OF 6 PAGES
Specications
System
Freq. Range (–10dB): 50Hz–21kHz
Freq. Response (–3dB): 70Hz–20kHz
Horz. Coverage Angle (–6dB): 110° averaged
800Hz to 16kHz
Vert. Coverage Angle (–6dB): 90° averaged
800Hz to 16kHz
Directivity Factor; Q (DI): 6.5 (8.2) averaged
800Hz to 16kHz
System Sensitivity1: 91 dB, 1W @ 1m
Rated Maximum SPL: 120 dB, @ 1m
System Input Power Rating2: 300W IEC; 1200W Peak
System Nominal Impedance: 8Ω
Recommended Amplier3: 450W
HF Protection: Dynamic
Crossover: 1.6kHz, 12 dB/octave
Transducers
Low-Frequency: 8" (200mm) carbon ber
woofer with 1.5" (38mm) coil
High-Frequency: Horn loaded 1" (25mm)
titanium dome tweeter, Ferrouid cooled
Physical
Enclosure: 45° back angles, high
density polystyrene
Attachment Inserts: 2 points M6 threaded on back
2 points 3/8" threaded on top and bottom
Color: Matte black, white (MR8W),
scratch resistant paint,
Grille: Matching perforated
steel grille
Input Connectors: Push connector plate
Dimensions (HxWxD): 16.94" x 11.42" x 10.24"
(430mm x 290mm x 260mm)
Net Weight: 21.6 lb. (9.8 kg)
Options
MA 8-3, MA 8-3W U-bracket, black (W-white)
MA 8-7 Hardware for suspending
and tilting 4 clustered speakers, black
1Measured on axis in the far eld with 1 watt (2.83V RMS, 8) input and referenced to 1 meter
distance using the inverse square law. Listed sound pressure represents an average from 300Hz to 3kHz.
2IEC Spectrum, Peak for 2 hours with +4.5 dB crest factor.
3Recommended Amplier is a power capability value that should be taken as a guide.

oF 6 PAGES
3OF 6 PAGES
Compact Two-Way Speaker
MR8
oF 6 PAGES
3OF 6 PAGES
0˚
200Hz
250Hz
315Hz
400Hz
Monitor 8
Vertical Polars
0˚
500Hz
630Hz
800Hz
1kHz
0˚
1.25kHz
1.6kHz
2kHz
2.5kHz
0˚
3.15kHz
4kHz
5kHz
6.3kHz
0˚
8kHz
10kHz
12.5kHz
16kHz
Vertical Off-Axis Frequency Response (UP)
Vertical Off-Axis Frequency Response (DOWN)

Compact Two-Way Speaker
MR8
oF 6 PAGES
4OF 6 PAGES
0˚
200Hz
250Hz
315Hz
400Hz
Monitor 8
Horizontal Polars
0˚
500Hz
630Hz
800Hz
1kHz
0˚
1.25kHz
1.6kHz
2kHz
2.5kHz
0˚
3.15kHz
4kHz
5kHz
6.3kHz
0˚
8kHz
10kHz
12.5kHz
16kHz
Horizontal Off-Axis Frequency Response

oF 6 PAGES
5OF 6 PAGES
Compact Two-Way Speaker
MR8
oF 6 PAGES
5OF 6 PAGES
Frequency response is measured on-axis at a distance referenced back to
1m at 1-watt drive. Shown as a half space (2π) environment.
Directivity Index
Beamwidth vs. Frequency
10.24" (260mm)
TOP
2.48" (32mm)
5.70" (145mm)
5.62" (143mm)
2.91" (74mm)
10.24" (260mm)
SIDE
11.42" (290mm)
FRONT REAR
4.25" (108mm)
8.46" (215mm)
6.45" (164mm)
16.94" (430mm) 2.00" (51mm)

Compact Two-Way Speaker
MR8
SPEAKER
MR8
oF 6 PAGES
6OF 6 PAGES
Architects’ and Engineers’ Specications
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 ber cone with a diameter of at
least 8 inches (200mm). The cone shall be tted 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 Ferrouid® 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 lament 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 amplier.
The enclosure shall be a vented design. It shall be con-
structed using high density polystyrene and nished 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, nished 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 eld 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 [phone], [e-mail]
UK +44.1268.571.212, fax [phone], [e-mail]
ITALY +39.0522.354.111, fax [phone], [e-mail]
FRANCE +33.3.8546.9160, fax [phone], [e-mail]
GERMANY +49.2572.96042.0, fax [phone], [e-mail]
Electronic les for this product available at:
www.mackieindustrial.com
This Specication 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 renements 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 specications
unless otherwise stated. ©1999-2002 Mackie Designs Inc. All rights Reserved. Mackie and the "Running
Man" gure 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