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7.1 High Defi nition Bass Management
The 7.1 High Defi nition Bass Manager
is compatible with all standard consumer
formats from
mono through
to the latest 7.1
HD systems.
Eight channels
of analogue
or an optional
8-channel,
24-bit, 192kHz
digital input
O 810, with 7.1 High
card ensures Defi nition Bass Manager
fl exible
interconnectivity for modern studios.
Four-mode LFE-channel processing
guarantees compatibility across all
formats and industries. Bypassable 80Hz
forth-order crossovers offer compatibility
with consumer replay systems, and fl exible
acoustical controls (consisting of output
level, low cut, a parametric equaliser, and
an eight-position phase control) allow
for seamless system integration. Built-in
volume control and a hardware remote
control allows for centralised system
control independent of the source, and
the electronics can be remote located to
reduce cabling. Finally, there is integrated
electronic limiter for amplifi er, driver
protection, low heat dissipation amplifi ers,
and the electronics can be remotely
powered on with two modes of operation (0
V and 12 V trigger).
18 KLEIN + HUMMEL
Decoding The DNA Of Sound
Since 1945 Klein + Hummel has been setting global standards
in sound reproduction. For over 40 years K+H has focused
on the professional market by developing precise measuring
instruments – tools to analyse sound and detect the tiniest aural
nuances.
K+H products are designed to be used in
music, broadcast, and post production
studios for tracking, mixing, and mastering.
They can be mixed freely to make large
multi-channel systems. Klein + Hummel
specialise in three-way systems, but have
recently launched a range of subwoofers.
Below we explain some of the thoughts
behind our designs.
The Goal: Accurate,
Absolutely Uncoloured Sound
Our aim with the O 300 was to strive for
nothing less than perfection in developing
the best compact active reference monitor
possible, with accurate, uncoloured
sound, superb transient response,
and ideally shaped waveguides.
The O 300 is a monitor that draws
upon all of Klein + Hummel’s years
of experience in monitor design (see
“Progress built on tradition” box-out),
and has been fi ne-tuned through
extensive computer simulations and
countless listening tests. The threeway
design makes this loudspeaker
system extremely precise and
revealing of detail, thereby enabling
the mixing engineer to make critical
judgments with supreme confi dence.
Exact Localisation And Extraordinary
Sense Of Space
A dense, low-resonance material called
LRIM is used to mould the waveguides
directly into the baffl e for optimal dispersion.
The elliptical shape reduces the early
refl ections off the console surface, which
would otherwise interfere with the direct
sound from the loudspeaker. At the same
time, the effective horizontal listening area
is made wider, giving the recording engineer
greater freedom of movement along the
console. The use of LRIM has also made
it possible to align the acoustic centres of
the two drivers exactly on one plane, thereby
preventing time and phase coherency
problems at the crossover frequencies.
This allows the individual drivers to work
together perfectly to produce a precisely
detailed soundstage.
O 300, Compact 3-way active monitor
Superb Sonic Qualities
The three magnetically shielded drivers use
the latest materials and acoustical design
techniques to accurately reproduce the input
signal at high levels and with low distortion.
The excellent transient performance is
particularly noticeable, as is the stereo