50
resolution October 2011
RESOLUTION AWARDS
T
he KH 120 is the first
product in the new
line of Neumann
studio monitors
since its assimilation
of Klein + Hummel.
Designed as a nearfield
or as a rear loudspeaker
in multichannel systems,
it has a Mathematically
Modelled Dispersion
waveguide, acoustic
controls, analogue Class
AB amplifiers, various
input formats and a range
of mounting hardware.
Neumann and Klein +
Hummel have been part of
the Sennheiser Group for
20 and 5 years respectively
and towards the end of
2009 it was announced
that Klein + Hummel
would close and the product
lines were split with Installed
Sound products moved to the
Sennheiser brand and Studio Monitoring
products moved to Neumann.
The first Neumann branded
studio monitor is a two-way
active that the company says
represents the latest in acoustic
and electronic simulation and
measurement technologies.
A titanium fabric dome brings
high-frequency reproduction
with very low-distortion and
combined with the elliptical
Mathematically Modelled Dispersion
(MMD) waveguide, a smoother off-
axis response is seen which is then more
forgiving of diverse acoustical environments. The
wide horizontal dispersion of the waveguide brings
freedom of movement within the large listening area
and the narrow vertical dispersion reduces reflections
off the mixing console. The long-throw bass driver
with its composite sandwich cone has well-damped
break-up modes and low distortion at high output
levels. The large front panel ports minimise bass
compression and allow easier mounting in tight
spaces, such as OB vans.
The compact aluminium cabinet, which is
magnetically shielded,
minimises resonances, offers
better heat dissipation, and
will have a longer life than a
wooden or plastic cabinet. The
one-piece front panel has no
unnecessary discontinuities
and minimises diffraction
and aids a smooth frequency
response. It employs 80W
analogue Class AB amplifiers
that achieve a claimed
response down to 52Hz at
-3dB with an SPL of 111.1dB
at 1m. Self-generated noise is
0dB(A) at 1m, i.e. inaudible
at the listening position, even
in a quiet room at a close
listening distance.
Separate woofer and
tweeter electronic limiters, an
excursion limiter, an infrasonic
filter, and thermal-protection
circuitry aid reliability even
under punishing conditions.
Four-position bass, low-mid and treble
acoustical controls give more control in
acoustical environments. Easy interfacing
with signal sources is possible with
the electronically-balanced XLR input
combined with wide range input
gain and output level controls. The
ground lift control reduces noise
in electrically noisy environments
and overcomes ground loops in
temporary set ups.
Hardware options bring more
flexibility when mounting cabinets in
varied locations and the display dimmer
accommodates low-level lighting conditions
or behind-the-screen use. The universal switched-
mode power supply (100-240V AC) means that one
version of the product works in any country, and
the circuitry is also tolerant of poor quality mains
supplies. The KH 120 A has an analogue input while
the KH 120 D will have an additional digital input.
Any KH 120 is ‘pair-matched’ to any other KH 120 as
production consistency is said to be so high.
The rest of the Klein + Hummel range will
eventually be replaced by similarly-sized Neumann
products but the KH 120 represents a very promising
start in studio monitoring. n
Neumann KH 120
Contact
NEUMANN, GERMANY
Website: www.neumann.com
AWARDS 2011
QUALITY & INNOVATION
Winner
Monitoring
ALSO NOMINATED: ATC SCM 25; Focal CMS 40;
Genelec 1238CF; PMC AML2.
(10 strony)
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