Mackie HR624 User manual

HR624
Active 2-Way Studio Monitor
SPEAKER
HR624
Features
 Flat frequency response (±1.5 dB, 52 Hz to 20 kHz)
 1" ferro-uid cooled aluminum alloy dome tweeter
 6.7" mineral-lled polypropylene cone woofer
 Proprietary, acoustically non-resonant high-frequency
exponential waveguide
 6" x 9" elliptical passive radiator for enhanced bass
performance
 40 watt HF and 100 watt LF power ampliers
 Servo-loop architecture for improved low-frequency
overload detection
 Independent high and low frequency overload detection
 High-strength cabinet constructed with 5/8" MDF
composite and 1" front board with radiused edges
 Internal H-brace for extra rigidity
 High-density adiabatic foam absorbs internal reections
 Full magnetic shielding
 Balanced XLR and 1/4" TRS, and unbalanced RCA
input connectors, downward facing
 Modied Linkwitz-Riley 24 dB/octave crossover
 Recessed adjustable sensitivity control
 Acoustic Space switch for selecting whole space,
half space, or quarter space placement
 Low-Frequency switch for bandwidth limiting the
low-frequency response
 High-Frequency switch boosts or cuts high frequencies
 Power Mode switch includes AUTO mode
 Front panel mute switch with indicating LED
 Front panel overload indicating LED
HR Series
 The HR624 studio monitors are high-resolution, two-
way, bi-amplied, active monitors employing a 6th-order
Butterworth system with a built-in rear-ring mass-loaded
passive radiator. They feature a 1-inch aluminum-alloy
high-frequency transducer, a high-precision 6.7-inch die-
cast magnesium frame low-frequency transducer, and a
6-inch x 9-inch elliptical at piston passive radiator in the
back. The system is composed of a single, compact cabinet
with built-in control and amplier electronics.
 The high-frequency driver is mounted on a massive,
acoustically non-resonant die-cast zinc exponential
waveguide, which results in wide, controlled dispersion
for high-frequency sounds. The unique passive radiator
design provides smooth response down to 52 Hz.
 The ampliers found in the HR624 cabinet are an
example of application-specic amplier design that can
be exercised when designing active speaker systems. The
low-frequency amplier is rated at 100 watts rms continu-
ous output, and the high-frequency amplier is rated at
40 watts rms continuous.
 The input panel on the back accepts a line-level input
with balanced 1/4" TRS, XLR, and unbalanced RCA connec-
tors. The connectors face downward so the monitor can be
placed ush against a wall. There is an input sensitivity
control to trim the gain from input to output and adjust for
various input levels. An acoustic space switch adjusts the
bass response to compensate for corner (quarter space) or
wall (half space) placement. A low-frequency switch selects
a high-pass cutoff frequency of 80 Hz, and a high-frequency
switch provides either 2 dB of boost or cut above 10 kHz.
The power mode switch can be used to turn the monitor on
and off, a function that is duplicated with the front panel
switch, or to put the monitor into auto mode, where the
ampliers revert to standby when no signal is present for
several minutes. The instant a signal appears at the input, the
ampliers seamlessly come back to life and produce sound.
 The cabinet is constructed using 5/8-inch (16 mm)
thick MDF with a 1-inch (25 mm) thick MDF front panel. An
internal H-brace provides additional cabinet stiffness, and
open cell adiabatic "foam ll" acoustic damping material
absorbs internal reections.
RELATED PRODUCTS
HR824 Active 2-Way Studio Monitor, HR626 Active 2-Way
Studio Monitor, HRS120 Active Subwoofer, HRS150 Active
Subwoofer
Applications
 Near-eld studio monitors
 Home Theater surround sound

SPEAKER
HR624
HR624 Active 2-Way Studio Monitor
www.mackie.com
16220 Wood-Red Road NE, Woodinville, WA 98072 USA
800.898.3211, fax [phone], [e-mail]
UK +44.1268.570.808, fax [phone], [e-mail]
HR624 Technical Specications
Acoustic Performance
Free Field Frequency Response: 52 Hz–20 kHz, ±1.5 dB
Lower Cutoff Frequency: –3 dB @ 49 Hz
Upper Cutoff Frequency: –3 dB @ 22 Hz
Sound Pressure Level @ 1 meter,
7.5 dBu into Balanced Input: 100 dB SPL @ 1m
Max SPL Peak Per Pair: 115 dB SPL @ 1m
Transducers
Low Frequency: 6.7" (170 mm) with die-cast
magnesium frame, mineral-lled polypropylene cone
High Frequency: 1" (25 mm) viscous edge-damped
aluminum alloy dome with ferrouid cooled voice coil
Passive Radiator: 6" x 9" (152 mm x 228 mm) mass-loaded
elliptical at piston composed of aluminum composite
with variable thickness lleted edge rubber surround
Ampliers
Low Frequency Power: 100 watts, 4Ω load
High Frequency Power: 40 watts, 8Ω load
Slew Rate: >15V/µs
Distortion (THD, SMPTE IMD, DIM 100): <0.035%
Signal-to-Noise Ratio:
Low-frequency amplier: >101 dB
referenced to 100 watts into 4Ω
High-frequency amplier: >93 dB
reference to 40 watts into 8Ω
Type: Monolithic IC, Class AB
Electronic Crossover
Crossover Type: Modied Linkwitz-Riley, 24 dB/octave
Crossover Frequency: 3000 Hz
Sensitivity: 0 dBu nominal
Input Impedance: 20 kΩ, balanced bridging
Compressor: Independent high and low frequency
overload detection
Equalization
Acoustic Space EQ: Flat, –2 dB, –4 dB @ 50Hz, shelving
Low Frequency EQ: –3 dB @ 80 Hz
2nd-order Butterworth high-pass lter
High Frequency EQ: ±2 dB @ 10 kHz, shelving
Line Input Power
US: 120 VAC, 60 Hz
Europe: 240 VAC, 50 Hz
AC Connector: 2-pin IEC 250 VAC, 16 A male
Power Consumption: 105 watts with music, loud mix
20 watts quiescent (idle)
12 watts in standby mode
Physical
Enclosure: 5/8" (16 mm) thick MDF
with 1" (25 mm) MDF front panel, internal H-brace
Damping: Adiabatic foam
Waveguide: Cast zinc
Dimensions (HxWxD): 13.00" x 8.25" x 12.50"
(330 mm x 210 mm x 318 mm)
Weight: 25.1 lbs (11.4 kg)
HR624 Rear Panel
ACOUSTIC SPACE
0dB
–
2dB
–
3dB
–
4
dB
20
• 0dB (START HERE) GUARANTEED FLAT
USE FOR MOST APPLICATIONS
• +2dB: USE IF YOUR MIXES TRANSLATE BRIGHT
• – 2dB: USE IF YOUR MIXES TRANSLATE DULL
• USE 80Hz TO EMULATE SMALL SPEAKER
• USE 49Hz FOR NORMAL LOW
FREQ PERFORMANCE
ROOM COMPENSATION
100Hz
LOW FREQ
LOW CUT
80Hz
HIGH FREQ
0dB
–
2dB
10kHz
+2dB
ACOUSTIC SPACE APPLICATIONS
C
SPEAKERS AGAINST WALLSPEAK ERS IN CORNERS
B
CONSOLE
CONSOLE
A
HALF SPACE
QUARTER SPACE
49Hz
SPEAKERS AWAY
FROM WALLS
CONSOLE
WHOLE SPACE
0dB
HIGH RESOLUTION STUDIO MONITOR
INTERNAL BI•AMPLIFICATION
100W L.F. / 40W H.F.
™
FREE FIELD ACOUSTIC RESPONSE
1k
22 kHz
49Hz
–
3dB
–
3dB
1.5dB 52Hz
–
20kHz
+
–
INPUT
SENSITIVITY
–
10dB
NORMALOFF
"MACKIE", "FR SERIES", AND THE "RUNNING MAN" FIGURE ARE REGISTERED TRADEMARKS OF MACKIE DESIGN INC.
ACOUSTIC
SPACE
LOW
FREQ FILTER
POWER
MODE
0
(NORMAL) AUTO
ON
–2dB +2dB
STANDBY
ON
HIGH
FREQ FILTER
HALF
WHOLE (NORMAL)QUARTER
80Hz
LOW CUT
49Hz
(NORMAL)
B
C
RISK OF ELECTRIC SHOCK
DO NOT OPEN
WARNING:
TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT
EXPOSE THIS EQUIPMENT TO RAIN OR MOISTURE. DO NOT REMOVE COVER.
NO USER SERVICEABLE PARTS INSIDE. REFER SERVICING TO QUALIFIED PERSONNEL.
CAUTION
AVIS:
RISQUE DE CHOC ELECTRIQUE — NE PAS OUVRIR
CONCEIVED AND DESIGNED BY MACKIE DESIGNS INC • WOODINVILLE • WA • USA
© 2001 MACKIE DESIGNS INC. • ALL RIGHTS RESERVED
SERIAL NUMBER
MAINS INPUT
~120VAC/
~220-240VAC
50-60 Hz 130W
SIGNAL INPUTS BAL/UNBAL
XLRPHONE RCA
A
LOUD Technologies continually engages in research related to product improvement. New material,
production methods, and design renements are introduced into existing products without notice
as a routine expression of that philosophy. For this reason, any current LOUD Technologies product
may differ in some respect from its published description, but will always equal or exceed the origi-
nal design specications unless otherwise stated. ©1999-2004 LOUD Technologies Inc. All rights
reserved. Mackie and the "Running Man" gure are registered trademarks of LOUD Technologies Inc.
Part No. 0004810 Rev B 09/04