Genelec 1037C User manual

Genelec 1037C
Tri-amplified Monitoring System
Data Sheet
1037C

1037C Tri-amplified Monitoring System
Applications
• Audio Recording
• Pre Production &
Composing Studios
• Broadcast Control Rooms
• Drama Studios
• TV Control Rooms
• Post Production
• Mastering Suites
System
The Genelec 1037C is a three-way active
monitoring system including loudspeaker
drivers, speaker enclosure, multiple power
amplifiers and low level active crossovers.
Designed for moderate sized control rooms
this system is ideal for audio recording
studios, general purpose broadcasting and
television studios, post-production facilities
and mastering suites.
The 1037C is designed to perform well
both as a free-standing monitor and flush
mounted into the control room wall.
The unique Directivity Control Wave-
guide™ (DCW™) Technology developed
by Genelec provides excellent stereo imag-
ing and frequency balance even in difficult
acoustic environments. The fast, low distor-
tion amplifiers are capable of driving a 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 Genelec 1037C active monitoring
system is very easy to use as only mains
power and a balanced input signal are
needed. The performance is optimized
because loudspeakers and amplifiers are
built as a single integrated, matched and
calibrated package. The rugged amplifier
unit is mounted into the enclosure with vibra-
tion isolators which also act as quick release
hinges making maintenance operations
very easy and straightforward. The speaker
cabinet is constructed of painted or veneered
MDF, which is heavily braced to eliminate
structural resonances.
Amplifiers
The bass, midrange and treble amplifiers
each produce 180 W, 120 W and 120 W,
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 incor-
porates special circuitry to protect the drivers
from overload.Thermal protection is included
for the amplifiers.
Drivers
The bass frequencies are reproduced by a
305 mm (12”) bass driver loaded with a 65
liters vented box. The -3 dB point is 35 Hz
and the low frequency response extends
down to 33 Hz.
The midrange frequencies are reproduced
by a proprietary 130 mm (5”) direct radiating
cone driver loaded with the DCW. The high
frequency driver is a 25 mm (1”) metal dome
also loaded by the DCW. All drivers are mag-
netically shielded as standard to minimize
stray magnetic field.
DCW technology
The revolutionary Directivity Control Wave-
guideTechnology is a means of improving the
performance of a direct radiating multi-way
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. Due to improved control of the
directivity, especially in the midrange fre-
quencies, more direct sound and less early
boundary reflections are received at the lis-
tening position.This results in 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.

Figure 4:The curves above show the effect of the‘bass’, ‘mid’and ‘treble’level controls, and the
‘bass tilt’and ‘bass roll-off’controls on the free field response, measured at 2 m.
Figure 2: Block diagram of the 1037C
Figure 1:The location of the acoustical axis of
the 1037C in horizontal and vertical configura-
tion
Figure 3:The upper curve group shows the horizontal directivity characteristics of the 1037C in its
vertical configuration measured at 2 m.The lower curve is a 1/6 octave power response measure-
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 cali-
brated controls are included in the crossover.
The Bass, Midrange andTreble level controls
operate in 1 dB steps. Moreover, the low fre-
quency 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.
Options
Order code
Opt-01 Flight case 1037-401
Opt-05 Floor stand 1037-405-V
Opt-06 Carrying handles 1037-406
Opt-09 Grille 1037-409
Opt-11 Rack adapter kit 1037-411

1037C Data Sheet
AMPLIFIER SECTION
CROSSOVER SECTION
SYSTEM SPECIFICATIONS
1037C
Lower cut-off frequency, -3 dB <35 Hz
Upper cut-off frequency, -3 dB >22 kHz
Free field frequency response 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 @ 1 m >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
@ 1.7 m from the engineer with music
material > 126 dB
Self generated noise level in free field
@ 2 m on axis < 15 dBA
Harmonic distortion at 95 dB SPL Freq: < 100 Hz < 3%
@ 1 m on axis > 100 Hz < 0.5
Drivers Bass 305 mm (12”)
Mid 130 mm (5”)
Treble 25 mm (1”) metal dome
All drivers are magnetically shielded
Weight 37 kg (83 lb)
Speaker dimensions Height 680 mm (26 3/4”)
Width 400 mm (15 3/4”)
Depth 380 mm (15”)
* Note that the cable connectors require additional
100 mm (4”) of space behind the speaker cabinet.
1037C
Bass amplifier output power with
an 4 Ohm load Short term 180 W
Mid amplifier output power with
an 8 Ohm load Short term 120 W
Treble amplifier output power with
an 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 THD <0.05%
nominal output SMPTE-IM <0.05%
CCIF-IM <0.05%
DIM 100 <0.05%
Signal to Noise ratio, Bass >100 dB
referred to full output Mid >100 dB
Treble >100 dB
Mains voltage: 100/200 or 115/230V
Voltage operating range at
230 V setting 207 - 244 V (-10/+6 %)
115 V setting 104 - 122 V (-10/+6 %)
Power consumption Idle 50 W
Full output 300 W
1037C
Input connector: XLR female pin 1 gnd
pin 2 +
pin 3 -
Input impedance 10 kOhm balanced
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 frequencies Bass/Mid 420 Hz
Mid/Treble 3.2 kHz
Crossover acoustical slopes 18 - 24 dB/octave
Level control operating range Bass from 0 to -6 dB & MUTE
in 1 dB steps Mid from 0 to -6 dB & MUTE
Treble from 0 to -6 dB & MUTE
Bass roll-off control in 2 dB steps from 0 to -8 dB @ 35 Hz
Bass tilt control in 2 dB steps from 0 to -8 dB @ 80 Hz
The ‘CAL’position is with all tone controls set to‘off’
and input sensitivity control to maximum and
corresponds to a maximally flat free field response.
Genelec Document BBA0054001 Copyright Genelec Oy 2.2003. All data subject to change without prior notice
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