Genelec 1034BC User manual

Data sheet
Genelec 1034BC
Tri-amplified Monitoring System

Horizontalmountingandrearviewofthe
speaker
1034BCTri-amplified Active Monitoring System
Video/Film Post ProductionVideo/Film Post Production
Video/Film Post ProductionVideo/Film Post Production
Video/Film Post Production
DVD MasteringDVD Mastering
DVD MasteringDVD Mastering
DVD Mastering
Project StudiosProject Studios
Project StudiosProject Studios
Project Studios
SYSTEM
The Genelec 1034BC is a dedi-
cated center channel speaker for
threechannel(LCR)andSurround
Sound systems. Its cabinet has
beendesignedforoptimumplace-
mentinthelimitedspaceaboveor
belowofavideomonitororscreen.
Itcanalsobeusedinverticalorien-
tation, on either side of a video
monitororscreen.
Asitsnamesuggests,theGenelec
1034BC is best suited for use as a
centerchannelspeakerwithapair
of standard Genelec 1034B moni-
toring systems. The 1034BC
employsthe same mid, treble and
bassdriversandDirectivityControl
Waveguide as a standard 1034B
and the amplifier unit is also the
sametoensurecompletetonalcom-
patibility.
Genelec 1034BC is a three-way
activemonitoringsystemincluding
magneticallyshieldedloudspeaker
drivers, speaker enclosure, mul-
tiple power amplifiers and active,
low signal level crossovers.The
1034BCisrecommendedtobeflush
mountedintothecontrolroomwall,
but it can also be used as a free-
standingmonitor.
The separate amplifier unit is built
into a rack mount chassis for easy
fittingintoastandard19"7Uequip-
mentrack.A 10 meter cable set to
connecttheamplifierandspeaker
is supplied with the system.
The unique Directivity Control
Waveguide(DCW)Technologypro-
videsexcellentstereoimagingand
frequencybalanceevenindifficult
acoustic environments. The fast
acting,lowdistortionamplifiersare Verticalmounting
Blockdiagramshowing active
crossoverfilters,poweramplifiers
and driver units.
APPLICATIONSAPPLICATIONS
APPLICATIONSAPPLICATIONS
APPLICATIONS
capableofdrivingastereosystem
to peak output levels in excess of
125 dB SPL at 2 m with program
signals. Versatile crossover con-
trols allow for precise matching of
the speaker system to different
acoustic conditions. The system
can be used both in vertical and
horizontal orientations by simply
rotating the DCW unit.

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. Note that the free-field mid-range ripple is
substantially reduced when the speaker is flush mounted as recom-
mended.
OptionsOptions
OptionsOptions
Options
Thecurvegroupaboveshows the horizontal directivity characteristics
of 1034BC in its vertical configuration measured at 1 m.The lower
curve is a 1/6 octave power response measurement, derived from 144
individualdirectivitymeasurements.
Thereferenceaxis lies betweenmidrangeandtweeter drivers.
Order Code
Opt-09Grille 1034-409BC
Calibratedcrossovercontrol
switches.MUTEdisconnectsthe
channelfortesting.
Thetweeterandthesealed
midrangedriverare mounted ona
DCW to match their dispersion
characteristics.The DCWcanbe
rotatedforverticalmounting(see
previouspage).
AMPLIFIERS
Thetreble,midrangeandbassam-
plifierseachproduce120W,350W
and2x400Wrespectivelyofshort
termpowerwithverylowTHDand
IMdistortion.Specialattentionhas
been paid to electronic design to
ensurethehighestsubjectivesound
qualitycurrentlypossible.Thesys-
temincorporatesspecialoverload
protection circuitry for the drivers.
Thermalprotectionisalsoincluded
for the amplifiers.
DRIVERS
The bass frequencies are repro-
duced by two long throw 305 mm
(12")bassdriversloadedwitha160
liter vented box. The -3dB point is
32 Hz and the low frequency re-
sponseextendsdownto28Hz(-6
dB).Themidrangefrequenciesare
reproduced by a proprietary 130
mm(5")directradiatingconedriver
loaded with a DCW. The high fre-
quencydriverisa25mm(1")metal
dome also loaded by a DCW, with
an upper -3dB point at 22 kHz.
The 1034BC is magnetically
shieldedinordertominimiseinter-
ferencewithvideo monitors.
CROSSOVERFILTERS
Theactivecrossovernetworkcon-
sists of three parallel band pass
filters, with crossover frequencies
at 400 Hz and 3.2 kHz, and a
commonbalancedinputstage. All
thefiltersarealignedforequalphase
andgroupdelaycharacteristicsand
are acoustically complementary.
Thefilterslopesare24 dB/octave.
Toadjustthebalanceofthedrivers
tosuitaparticularacousticenviron-
ment, bass midrange and treble
level controls are included, which
adjust the output in 1 dB steps. In
addition,lowfrequency'roll-off'and
'tilt' controls are present, to allow
further refinement of the system
response.
DCWTECHNOLOGY
The revolutionary Directivity Con-
trol Waveguide Technology is a
meansofvastlyimprovingtheper-
formance of a direct radiating
multiwayloudspeakerinnormallis-
teningconditions.
The basic idea is to match the
differentdriveunitsprecisely,both
intermsoffrequencyresponseand
directivity. This will result in a
smootherand virtuallyuncoloured
off-axis response of the system.
Also due to improved directivity
control especially in the midrange
andhighfrequencies,moredirect
soundandlessearlyboundaryre-
flectionsarereceivedatthelistening
position. This gives a more accu-
ratestereoimagingandmakesthe
system less sensitive to differing
control room acoustics than any
conventionaldirectradiatordesign.
The DCW Technology improves
drive unit sensitivity from +2 to +6
dB thus increasing the system's
maximum sound pressure level.
BASS
LEVEL
ON
OFF
MUTE -6 -5 -4 -3 -2 -1
0dB
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CROSSOVERCROSSOVER
CROSSOVERCROSSOVER
CROSSOVER
SECTIONSECTION
SECTIONSECTION
SECTION
1034BC1034BC
1034BC1034BC
1034BC
SYSTEMSYSTEM
SYSTEMSYSTEM
SYSTEM
SPECIFICATIONSSPECIFICATIONS
SPECIFICATIONSSPECIFICATIONS
SPECIFICATIONS AMPLIFIERAMPLIFIER
AMPLIFIERAMPLIFIER
AMPLIFIER
SECTIONSECTION
SECTIONSECTION
SECTION
Lowercut-offfrequency,-3dB: <32 Hz
Upper cut-off frequency, -3 dB: >22 kHz
Freefieldfrequencyresponse
of system: 33 Hz - 20 kHz (±2.5 dB)
Maximum short term sine wave
acoustic output on axis
in half space, averaged from
100 Hz to 3 kHz: @1m >123 dB SPL
Maximum long term RMS acoustic
outputinsameconditionswith IEC-weighted
noise (limited by driver unit protection cir-
cuit): @1m >118 dB SPL
Maximum peak acoustic output
per pair @ 2m from the engineer
with music material: >125 dB SPL
Self generated noise level in
free field @ 1m on axis: <15 dBA
Harmonic distortion at 100 dB SPL @ 1m on
axis / freq: 50...100Hz <1%
200...10kHz <0.5%
Drivers: Bass 2 x 305 mm (12")cone
Mid 130mm (5")cone
Treble 25 mm (1")metaldome
All drivers are magnetically shielded
Speakerweight: 84 kg (185 lbs)
Amplifierweight: 30 kg (66 lbs)
Speakerdimensions(horizontalmounting):
Height 489mm (191/4")
Width 1210mm(475/8")
Depth 412mm (16 1/8") *
Amplifierdimensions:
Height 310mm (123/16") [7U]
Width 483mm (19")
Depth 250mm (9 13/16") *
*Withoutconnectingcable.Cableconnec-
tors require additional 100 mm (4") of space
behind the speaker and the amplifier.
Bass amplifier output power with an 8 Ohm
load: Short term 2 x 400 W
Midrangeamplifieroutputpowerwith
an 8 Ohm load: 350 W
Trebleamplifieroutputpowerwith
an 8 Ohm load: 120 W
Long term output power is limited by driver
unitprotectioncircuitry.
Slewrate : 80 V/µs
Amplifier system distortion at
nominaloutput: THD <0.05%
SMPTE-IM <0.05%
CCIF-IM <0.05%
DIM100 <0.05%
Signal to Noise ratio, referred to full output:
Bass >100 dB
Midrange >100 dB
Treble >100 dB
Mains voltage: 100/200Vor115/230V
Voltageoperatingrangeat
230V setting: 207- 244V(-10/+6%)
115V setting: 104- 122V(-10/+6%)
Powerconsumption:
Idle 70 W
Fulloutput 1000 W
Inputconnector:XLR female pin 1 gnd
pin 2 +
pin 3 -
Inputimpedance: 10kOhmbalanced
Input level for 100 dB SPL output @1m:
variable from +6 to -6 dBu
Input level for maximum short term output of
126 dB SPL @1m:
variable from +32 to +20 dBu
Subsonic filter below 27 Hz :
18dB/octave
Ultrasonic filter above 22 kHz:
12dB/octave
Crossoverfrequency:
Bass/Mid 400Hz
Mid/Treble 3,2 kHz
Crossoveracousticalslopes:
>24dB/octave
Crossoverlevelcontrol operatingrangein1
dB steps: Bass from 0 to -6 dB & MUTE
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 @ 32 Hz
Bass tilt control in 2 dB steps:
from 0 to -8 dB @ 50 Hz
The calibration position is with all tone con-
trols set to 'off' and input sensitivity control
to maximum.
Genelec document BBA34BC001
COPYRIGHT GENELEC OY 4/1999
All data subject to change without prior notice
Genelec Oy, Olvitie 5
SF - 74100 IISALMI, FINLAND
Phone: +358 - 17 - 813 311
Fax: +358 - 17 - 812 267
Email: [email protected]
Web: www.genelec.com
Genelec Inc, 7 Tech Circle
Natick, MA 01760, USA
Phone: +1 - 508/652-0900
Fax: +1 - 508/652-0909
Email: [email protected]