- Powered Monit with 8¾" LF Driver.
- Acoustic Space Control.
- 1" Dome Tweeter.
- HF Shelf (each).
- LF Roll-off.
Product Description
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With its smooth sound and design, the 8.75-inch HR824mk2
high-resolution Active studio reference monitor turns your
studio?s sweet spot into a full-on sweet zone.
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Our HR824mk2 and HR624mk2 high-resolution Active studio
reference monitors represent the evolution of revolutionary
thinking. Our engineers, joined by audio gurus from EAW, worked
hard to conceive of a way to preserve the all-important character
of the original HR, while delivering performanceas well as
appearancethats better than ever. And even moreso than the
original HR824 and HR624, which were designed apart from each
other, the HR824mk2 and HR624mk2 are part of the same family,
true siblings in design and sound. Sharing the same engineering,
they are created to work together, whether in surround systems,
or as part of complementary monitoring setups in different sized
rooms.
Zero-edge Baffle
The new one-piece cast aluminum Zero Edge Baffle features
precisely engineered curvature that minimizes diffraction for a
crystal clear image of your mix, and effectively controls sound
waves so you get detailed lows, full, articulate mids, and
shimmering highs. The integrated Optimized Waveguide accurately
and efficiently controls dispersion characteristics of the sound
on and off axis, resulting in a wide sweet spot with smooth
transitions from lows to highs. More inert than a wood or plastic
baffle, the Zero Edge Baffles cast metal surface reduces surface
vibrations during playback, thereby minimizing distortion to the
sounds waveforms; the result is improved time-domain
characteristics, which equates to dramatically enhanced depth of
field. Thanks to the design of the Zero Edge Baffle, the HRmk2s
imaging is stunningly accurate, with wide, even dispersion, and
three-dimensional sound, delivering a much broader sweet spot
than any other studio monitor on the marketso broad, in fact,
that we like to call it a sweet zone.
Passive Radiator
The HRmk2 delivers outstanding bass response, thanks to our
passive radiator design. First used in the original HR Series,
the passive radiator design avoids the drawbacks of ducted ports
or slots.
When you a loudspeaker in a box, there are two things that
you can do with the radiation from the rear of the cone: use it
to enhance the low-frequency performance of the speaker system
(bass reflex system) or soak it up (acoustic suspension system).
A bass reflex system uses the rear radiation to extend the
low-frequency response; most systems provide holes (ports) in the
front or back of the cabinet to release the rear wave. The HRmk2
is a bass reflex 6th-order system. Rather than use ports, the
vent takes the form of a passive radiator, a mass-loaded flat
piston coupled to the air trapped within the enclosure. You cant
see the passive radiator because it is located at the rear of the
cabinet, behind the power amplifier assembly.
The passive radiator replaces the port found on most speaker
systems. Simple ports or ducts must have sufficient surface area
to prevent the velocity of the air within them from exceeding 5%
of the speed of sound, which keeps the vent from becoming audible
(breathing and wheezing sounds) at high signal levels. This
requirement for sufficient surface area creates a design problem
when using portsfinding enough space in the enclosure for them
to fit.
One primary advantage of a passive radiator is that it can
reproduce low frequencies with lower distortion and at a higher
sound pressure level (SPL) than a simple port or duct. Our unique
passive radiator design uses a flat diaphragm, providing
exceptional stiffness to the radiating surface. The elliptical
shape of the passive radiator takes up nearly the entire surface
area available on the rear of the enclosure, allowing the passive
radiator to move more air than a port. And as a result of this
design, our HRmk2s deliver superior bass response, with virtually
no distortion.
Amplifiers
The HRmk2 Series monitors are a true Active design, meaning they
contain separate onboard amplifiers for each driver, plus onboard
active crossovers and time-correction circuitry, which helps
ensure highs and lows reach your ears at the same time. The
HRmk2s also have protection circuitry built in to protect from
damaging input levels. With the same class A/B amplifier design
as the original HR Series, the HRmk2s retain the much-loved
character of our classic monitor, and carry on the Acoustic Space
circuitry of the classic HRs, which allows you to tune the
monitors to your room.
Designed into the heart of the amplifier circuits are EQ and
filter sections that allow each amplifier to be precisely
factory-tuned, ensuring that what we designed in our labs is what
you end up with in your studio. Before assembly, we first
hand-trim the amplifiers to exactly match the amplifiers in our
Golden Reference Unit. (See "Unparalleled Quality" for more on
the Golden Reference Unit.) During final assembly and testing,
the amplifiers are voiced to match the rest of the components in
the entire monitor system; theyre hand-trimmed to compensate for
very slight manufacturing tolerances between the drivers. This
meticulous process results in each monitor being within exacting
references of the Golden Reference Unit.
Woofer/Tweeter Selection
Each HRmk2 monitor features a high-precision, low-distortion
woofer8.75-inch for the HR824mk2 and 6.7-inch for the
HR624mk2and a 1-inch ferrofluid cooled titanium dome tweeter. An
exhaustive process, the selection of the new HRmk2 drivers
consumed considerable engineering resources. Our team spent
countless hours in their quest to find drivers that met our
stringent criteria, including the ability to be manufactured in
volume with virtually no variability between units, the ability
to produce the desired frequency response, and the ability to
meet the tight price goals that allow us to make our monitors
affordable. After having rejected multiple candidates, the team
eventually narrowed down the field. With further engineering
input, we sourced drivers that met our standards, and
successfully managed to fine-tune a system that delivers
unparalleled results.
Cabinet Design
The HRmk2 monitors feature a wood cabinet, with custom internal
bracing to increase its strength and rigidity in desired
locations. To absorb internal reflections and dampen standing
waves inside the cabinet, an open-cell adiabatic foam material is
placed strategically inside the box. While an all-metal cabinet
had been considered as a potential design strategy, in the end
our design team used their ears to make their choice of cabinet
material. And what they heard from an all-metal cabinet was a
sound that was accurate, but overly sterile. Combining a wood
cabinet with our metal Zero Edge Baffle adds that unquantifiable
"bit of warmth," producing sound thats trueand never lifeless.
To say we here at Mackie are detail-oriented is an
understatement. We obsessed over every last detail on the HRmk2
Seriesfrom the color and finish, to the power indicators and
even the vents in the heat sink.
With the potential for the speakers to be used in settings from
home theatres to gaming rooms to studios, we opted for a look
that would be universally appealing. The high-gloss, piano black
finish of the cabinet complements the deep charcoal grey of the
Zero Edge Baffle, and gives the HRmk2 a modern, professional look
that suits just about any environment. All HRmk2s ship with
peelable, protective film on each side to ensure that they look
as brilliant in your studio as they do when they leave the
factory.
Our LED power indicator is a tasty shade of whitea cool,
refreshing change from your typical red. We took care to make
sure the brightness is just right, too. The light shines bright
enough... read more
Along with Acoustic Space Controls that allow you to adjust low
frequency response to compensate for placement next to the wall,
in corners, or in the center of a room, the HRmk2s come with...
read more
We go to elaborate lengths to ensure each HRmk2 sounds as good
as our experts intended. Each one we manufacture is subject to
rigorous testing and pre-screening during the production process,
then calibrated and tuned with an environmentally controlled test
chamber before final packaging. Our Golden Reference Unit serves
as the reference point for calibration; there is one of each
model in the HRmk2 family. Hand-engineered in the US, the Golden
Reference Unit is the "master" for HRmk2 production unitsit is
the final design arrived at and approved by the HRmk2 team. The
Golden Reference Unit and the test chamber are calibrated as a
system every few hours, to compensate for temperature and
humidity variations, and the resulting measurements are used to
calibrate each HRmk2 production unit. Each HRmk2 monitor is tuned
to be within 1.5 dB across the entire frequency range of the
Golden Reference Unit, and gets its own "birth certificate" with
a chart plotting the frequency difference between it and the
Golden Reference Unit. The birth certificate is then verified and
signed by a Mackie Acoustic Technician.
Our strict quality control means all our HRmk2s meet our
published specifications, and that there is little-to-no
variability between units. No matter if you get your first HRmk2
pair now and add another pair for your surround setup months
later, you can be confident you have a precisely tuned system
that has been designed to work in unison, and that every HRmk2
pair is a true "matched pair."
Our Golden Reference Units serve as the reference point for
calibration; hand-engineered in the US, the Golden Reference
Units serve as the "masters" for HRmk2 production units... read
more
* High resolution Active studio reference monitor
* Ultra-linear frequency response for accurate mix translation
* 8.75-inch high-precision, low-distortion LF transducer
* 1-inch titanium dome, ferrofluid cooled tweeter
* Optimized Waveguide for wide, even sweet zone
* Twin FR Series amps 150W for LF / 100W for HF
* Cast aluminum Zero Edge Baffle minimizes diffraction
* Full internal damping eliminates midrange artifacts
* Passive radiator provides tight, articulate bass extension down
to 35Hz
* Acoustic Space, LF roll-off, and HF controls
* Balanced XLR, TRS, and unbalanced RCA inputs
* Omni ready for easy wall/ceiling placement
* THX pm3 certified for surround sound applications
* Perfect for High-Definition audio, cinema and gaming systems