Genelec 1037-B Brochure

1037B

DATA SHEET

Genelec 1037B

Tri-amplified Monitoring System

1037B Tri-amplified Active Monitoring System

AudioArt Recording Studio, Atlanta. Photo courtesy of Joe Paban.

APPLICATIONS

Project studios
Broadcast Control Rooms
TV Control Rooms
Drama and music studios
Post Production
CD Mastering

SYSTEM
The Genelec 1037B is a three-way

active monitoring system including
loudspeaker drivers, speaker
enclosure, multiple power
amplifiers and active, low signal
level crossovers. Designed for
moderate sized control rooms this
system is ideal for project studios,
general purpose broadcasting and
television studios, digital
workstations and postproduction
facilities.
The 1037B is designed to perform
well both as a free-standing
monitor and flush mounted into
the control room wall.
The unique Directivity Control
Waveguide (DCW) Technology
used provides excellent stereo
imaging and frequency balance
even in difficult acoustic
environments. The fast, low
distortion amplifiers are capable
of driving the stereo system to
peak output levels in excess of
126 dB SPL at 1.7 m with program

signals. Versatile crossover
controls allow for precise matching
of the speaker system to different
acoustic conditions. The system
can be used in both vertical and
horizontal orientations by simply
rotating the DCW unit.

INTEGRATED CONSTRUCTION
The system is very easy to use as

only mains power and an input
signal are needed. The
performance is optimsed because
the loudspeakers and amplifiers
are built as a single integrated,
matched and calibrated package.
The rugged amplifier is mounted
into the enclosure with vibration
isolators which also act as quick
release hinges making
maintenance operations very easy
and straightforward. The speaker
cabinet is constructed of veneered
MDF, which is heavily braced to
eliminate structural resonances.

The block diagram showing active crossover filters, power amplifiers
and driver units.

AMPLIFIERS

Three channel amplifier housed in the speaker cabinet

The bass, midrange and treble
amplifiers each produce 180W,
120W and 120W, respectively of
short term power with very low
THD and IM distortion. Special
attention is paid to the electronic
design to achieve the best
subjective sound quality currently
possible. To improve the acoustic
transient response the output
impedance of the woofer amplifier
is made negative. The system
incorporates special circuitry to
protect the drivers from overload.
Thermal protection is included for
the amplifiers.

Horizontal mounting

Vertical mounting

The reference axis lies between
midrange and tweeter drivers.

DRIVERS
The bass frequencies are

reproduced by a 305 mm bass
driver loaded with a 65 litre vented
box. The -3dB point is 35 Hz and
the low frequency response
extends down to 33 Hz.
The midrange frequencies are
reproduced with a very carefully
designed 130 mm direct radiating
driver loaded with a proprietary
DCW. The high frequency driver is
a 1" metal dome tweeter that is
also loaded by a DCW. A magnetic
shielding option is available for
applications where the stray
magnetic field must be minimized.

CROSSOVER FILTERS
The crossover frequencies of the

active crossover network are 420
Hz and 3.2 kHz. In order to obtain
uniform frequency balance in
different acoustic conditions,
special calibrated controls are
included in the crossover. The
Bass, Midrange and Treble level
controls operate in 1 dB steps.
Moreover, the low frequency Tilt
and Roll-off controls both have
four 2 dB steps to allow refined LF
response tailoring. A high-pass
filter is included in the LF channel
to protect the woofer from subsonic
signals. The crossover network is
driven by an active balanced input
stage. Variable input sensitivity
allows for accurate level matching
to the mixing console.

Calibrated ‘Level’ switch. MUTE
disconnects the channel for
testing.

The upper curve group shows the horizontal directivity characteris­tics of 1037B in its vertical configuration measured at 1 m. The lower
curve is a 1/3 octave band power response.

DCW TECHNOLOGY
The revolutionary Directivity

Control Waveguide Technology is
a means of vastly improving the
performance of a direct radiating
multiway loudspeaker in normal
listening conditions. The basic idea
is to match the different drive units
precisely, both in terms of
frequency response and
directivity. This will result in a
smoother and a virtually
uncoloured off-axis response.
Also, due to improved directivity
control especially in the midrange
frequencies, more direct sound
and less early boundary reflections
are received at the listening
position. This gives more accurate
stereo imaging and makes the
system less sensitive to differing
control room acoustics than any
conventional direct radiator
design. The DCW Technology
improves drive unit sensitivity from
+2 to +6 dB thus increasing the
maximum sound pressure level
produced by the system.

The tweeter and the sealed
midrange driver are mounted on
a DCW to match their dispersion
characteristics. The DCW can
be rotated for horizontal
mounting.

The curves above left show the effect of the 'bass tilt', 'bass level'
and 'bass roll-off' controls on the free field response. The curves to
the right show the effect of the treble and midrange 'level' controls.

Options

Opt-01
Flight case
Order Code
1037-401

Opt-11
Rack adapter
Order Code
1037-411

Opt-03
Magnetic
shielding
Order Code
1037-403

Opt-05
Floor stand
Order Code
1037-405-V

Opt-06
Handles
Order Code
1001-406

Opt-09
Grille
Order Code
1037-409

1037B

CROSSOVER SECTIONSYSTEM SPECIFICATIONS AMPLIFIER SECTION

Lower cut-off frequency, -3 dB: < 35 Hz
Upper cut-off frequency, -3 dB: > 22 kHz

Free field frequency response
of system: 37 Hz-21 kHz (±2.5 dB)

Maximum short term sine wave acoustic
output on axis in half space, averaged from
100 Hz to 3 kHz:

@1m >116 dB SPL

Maximum long term RMS acoustic output in
same conditions with IEC-weighted noise
(limited by driver unit protection circuit):

@1m >107 dB SPL

Maximum peak acoustic output per pair on
top of console, @ 1.7m from the engineer
with music material: >126 dB

Self generated noise level in free field @ 1m
on axis: <15 dB (A-weighted)

Harmonic distortion at 95 dB SPL
at 1m on axis:

freq. <100 Hz <3%
freq. >100 Hz <0.5%

Drivers:

Bass 305 mm (12") cone
Mid 130 mm (5") cone
Treble 25 mm (1") metal dome

Bass amplifier output power with a 4 Ohm
load:

Short term 180 W

Midrange amplifier output power with a
8 Ohm load:

Short term 120 W

Treble amplifier output power with a 8 Ohm
load:

Short term 120 W

Long term output power is limited by driver
unit protection circuitry.

Slew rate: 80 V/µs
Amplifier system distortion at nominal

output:

THD <0.05%
SMPTE-IM <0.05%
CCIF-IM <0.05%
DIM 100 <0.05%

Signal to Noise ratio, referred to full output:

Bass >100 dB
Midrange >100 dB

Treble >100 dB
Mains voltage: 100/200V or 115/230V
Voltage operating range: nominal ±10%

Input connector:
XLR female pin 1 gnd

pin 2 +

pin 3 ­Input impedance: 10 kOhm
Input level for 100 dB SPL output @1m:

variable from +6 to -6 dBu

Input level for maximum short term output
of 116 dB SPL @1m:

variable from +22 to +10 dBu

Subsonic filter below 32 Hz :

18 dB/octave

Ultrasonic filter above 25 kHz:

12 dB/octave

Crossover frequency:

Bass/Mid 420 Hz
Mid/Treble 3.2 kHz

Crossover acoustical slopes:

18 - 24 dB/octave

Crossover level control operating range in
1 dB steps:

Bass from 0 to -6 dB
Mid from 0 to -6 dB
Treble from 0 to -6 dB

Weight: 37 kg (82 lb)
Dimensions:

Height 680 mm (26 3/4")
Width 400 mm (15 3/4")
Depth 380 mm (15")

All data subject to change without prior notice

Genelec Oy, Olvitie 5
FIN - 74100 IISALMI, FINLAND
Phone: +358 - 17 - 83 881
Fax: +358 - 17 - 812 267
E-mail: [e-mail]
Web: http://www.genelec.com

Power consumption:

Idle 50W
Full output 300W

Genelec Document BBA37001 COPYRIGHT GENELEC OY 5.2000

Bass roll-off control in 2 dB steps:

Bass tilt control in 2 dB steps:

The 'CAL' position is with all tone controls
set to 'off' and input sensitivity control to
maximum.

from 0 to -8 dB @35 Hz

from 0 to -8 dB @80 Hz

Genelec Inc, 7 Tech Circle
Natick, MA 01760, USA
Phone: +1- 508 - 652 - 0900
Fax: +1 - 508 - 652 - 0909
E-mail: [e-mail]