EAW MicroWedge MW12 User manual

EasternAcoustic Works One Main Street Whitinsville, MA01588 tel [phone] fax [phone] www.eaw.com
EAW products are continually improved. All specifications are therefore subject to change without notice. Part Number: 0011736-90 February 2008
MicroWedge MW12 Specifications group · S
FEATURES
• Highlycoherentcoaxialdesign(12-inchLF)
•Enhancedfidelityandpowerhandling
•Upgradedtransducersandcrossoverdesign
•Switchablesingle-amp/bi-ampmodes
•Convenientinputconnectorlocation
DESCRIPTION
The MicroWedge MW12 is a collaboration between original
MicroWedgeSeriesinventor Dave“Rat”Levine(ownerofRatSound
Systems, Inc.) and the EAW Engineering Department, resulting
in dramatically upgraded performance and ergonomics.A 12-inch
woofer is paired with a 3-inch voice coil HF compression driver on a
hornthatprovidesfullyetcontrolled90-degreehorizontaldispersion.
All frequencies emanate from the exact same point, eliminating
crossover region problems and time/phase irregularities, as well as
optimizing coherency. The coaxial approach also contributes to a
verycompact, low-profilefootprint.
MicroWedge MW12 monitors are processor enhanced (rather
than processor dependant) for true “plug and play” operation. User
selectable single-amp and bi-amp modes are provided. The large
port on the front of the cabinet enhances LF response in coupling
with the floor, and this port houses both the carrying handle and
the passive/active mode switch. The port also contains dual input
connectors, keeping them concealed and protected, and allowing
wedges to be placed as close together as desired.Additional cable
canbe storedinthe portwithout impacting LFperformance.
Rubberfeetonthebottomoftheenclosurereduceabrasion,andnew
integralrigging hardware – also mounted on the enclosurebottom –
facilitates easy flying. The Baltic birch cabinets are protected with
EAW’s RoadCoat™ finish that’s extremely durable, and the rugged
steel grille keeps its distinctive shape even when stood upon. All
componentsarehighlyliquidtolerant–virtuallyimpervioustospilled
drinksas wellasnatural elementslike rain.
2-WAY FULL-RANGE STAGE MONITOR
See NOTES TABULAR DATA for details
CONFIGURATION
Subsystem
Transducer Loading
LF 1x 12in cone Vented
HF 1x 1.4inexit,3invoice Horn-loaded
coilcompression driver
Operating Mode
AmplifierChannels ExternalSignalProcessing
Single-amp LF/HF Highpass filter
Bi-amp LF,HF DSPw/2-wayfilters
PERFORMANCE 1
Operating Range 64Hz to 20kHz
Nominal Beamwidth (conical)
Horz 90°
Vert 90°
Axial Sensitivity (wholespace SPL)
LF/HF 94dB 64Hz to 20kHz
LF 95dB 60Hz to 930Hz
HF 106dB 730Hz to 20kHz
Input Impedance (ohms)
Nominal Minimum
LF/HF 8 6.4@ 818 Hz
LF 8 7.9@ 231 Hz
HF 8 8.7@ 4732 Hz
High Pass Filter
HighPass =>50 Hz, 12dB/octave Butterworth
Accelerated Life Test 2
LF/HF 69V 600W @ 8ohm
LF 69V 600W @ 8ohm
HF 35V 150W @ 8ohm
CalculatedAxial Output Limit (whole space SPL)
Average Peak
LF/HF 122dB 128dB
LF 123dB 129dB
HF 128dB 134dB
ORDERING DATA
Description Part Number
MW122-WayFullRange LoudspeakerBlack 0011736-90
1To achievespecified performance,the listed external signal processingwith EAW-provided settings is required.
2Forrecommendations to select power amplifiersize referto : “HOW MUCHAMPLIFIER POWER DO INEED?” onthe EAWwebsite.
PRELIMINARY

MicroWedge MW12 Specifications group · S
ENCLOSURE
Material Balticbirch plywood
Finish RoadCoatTM wearresistant textured blackpaint
Grille Powder-coatedperforated steel
NOTE: Thisdrawinghas beenreduced.Do notscale.
NOTES:
1. SYMBOL INDICATES 15.00 X 1.35 FLY TRACK.
RIGHT SIDE
4X 6.33
R 644.67
R 44.44
DIMENSIONS APPLY
TO BOTH SIDES
50.86
27°
[304.8]
(13°)
[6.3]
[101.8]
HANDLE / PORT
LOGO PLATE
101.82
2X INPUT
FRONT
[333.9]
L
C
GRILLE PARTIALLY SHOWN
TOP
333.86
[325.8]
325.79
579.23
304.80
[579.2]
[438.6]
L
C
438.65
27°
139.86
[R664.7]
[139.9]
[216.7]
[63.0]
MW12
PROTOTYPE
[50.9]
LOUD Technologies Inc.
ONE MAIN STREET WHITINSVILLE, MA 01588 USA
BACK
300.83
417.69
MODEL/SERIAL NUMBER PLATE
63.00
[417.7]
[44.4]
4X RUBBER
FEET
216.68
L
C
[300.8]
EasternAcoustic Works One Main Street Whitinsville, MA01588 tel [phone] fax [phone] www.eaw.com
EAW products are continually improved. All specifications are therefore subject to change without notice. Part Number: 0011736-90 February 2008
PRELIMINARY

MicroWedge MW12 Specifications group · S
PERFORMANCE DATA
See NOTES GRAPHIC DATAfor details
Frequency Response: Processed Multi-amplified
LF = green, HF = black, Complete = blue
SPL(dB)
Frequency Response: Unprocessed
LF = green, HF = black, Complete = blue
SPL(dB)
Frequency Response: Digital Signal Processor
LF = green, HF = black
dB re 0.775 V
Impedance Magnitude
LF = green, HF = black, Complete = blue
Ohms
120
110
100
90
80
70
60
100
10
1
10 100 1000 20000
Frequency (Hz)
10
0
-10
-20
-30
-40
-50
20
10
0
-10
-20
-30
-40
10 100 1000 20000
Frequency (Hz)
10 100 1000 20000
Frequency (Hz)
EasternAcoustic Works One Main Street Whitinsville, MA01588 tel [phone] fax [phone] www.eaw.com
EAW products are continually improved. All specifications are therefore subject to change without notice. Part Number: 0011736-90 February 2008
MW 12 GRPH Master1
10
0
-10
dB SPL -20
-30
-40
-50
10 100 1000 20000
10 100 1000 20000
Frequency (Hz)
MW 12 GRPH Master1
10 100 1000 20000
120
110
100
dB SPL 90
80
70
60
MW 12 GRPH Master1
10 100 1000 20000
20
10
0
dB re 0.775 V rms -
10
-20
-30
-40
MW 12 GRPH Master1
10 100 1000 20000
100
Ohm 10
1
Beamwidth (-6 dB SPL Points)
Horizontal = orange Vertical = black
Degrees
100 1000 20000
Frequency(Hz)
MW12 POLAR Master1
100 1000 20000
360
100
Degree
10
1
360
100
10
1
PRELIMINARY

MicroWedge MW12 Specifications group · S
HORIZONTAL POLAR DATA (Gridlines: 6 dB axial / 15 degree radial)
See NOTES GRAPHIC DATAfor details
EasternAcoustic Works One Main Street Whitinsville, MA01588 tel [phone] fax [phone] www.eaw.com
EAW products are continually improved. All specifications are therefore subject to change without notice. Part Number: 0011736-90 February 2008
0
-45
-90
-135
180
135
90
45
100 Hz
125 Hz
160 Hz
200 Hz
0
-45
-90
-135
180
135
90
45
250 Hz
315 Hz
400 Hz
500 Hz
0
-45
-90
-135
180
135
90
45
630 Hz
800 Hz
1000 Hz
1250 Hz
0
-45
-90
-135
180
135
90
45
1600 Hz
2000 Hz
2500 Hz
3150 Hz
0
-45
-90
-135
180
135
90
45
4000 Hz
5000 Hz
6300 Hz
8000 Hz
0
-45
-90
-135
180
135
90
45
10000 Hz
12500 Hz
16000 Hz
PRELIMINARY

MicroWedge MW12 Specifications group · S
VERTICAL POLAR DATA (Gridlines: 6 dB axial / 15 degree radial)
See NOTES GRAPHIC DATAfor details
EasternAcoustic Works One Main Street Whitinsville, MA01588 tel [phone] fax [phone] www.eaw.com
EAW products are continually improved. All specifications are therefore subject to change without notice. Part Number: 0011736-90 February 2008
0
-45
-90
-135
180
135
90
45
100 Hz
125 Hz
160 Hz
200 Hz
0
-45
-90
-135
180
135
90
45
250 Hz
315 Hz
400 Hz
500 Hz
0
-45
-90
-135
180
135
90
45
630 Hz
800 Hz
1000 Hz
1250 Hz
0
-45
-90
-135
180
135
90
45
4000 Hz
5000 Hz
6300 Hz
8000 Hz
0
-45
-90
-135
180
135
90
45
10000 Hz
12500 Hz
16000 Hz
0
-45
-90
-135
180
135
90
45
1600 Hz
2000 Hz
2500 Hz
3150 Hz
PRELIMINARY

MicroWedge MW12 Specifications group · S
INPUT PANEL
NOTES
TABULARDATA
1. Measurement/DataProcessing Systems: Primary -FChart:proprietary EAW software; Secondary- Brüel & Kjær2012.
2. MicrophoneSystems: EarthworksM30; Brüel&Kjær 4133
3. Measurements: Dualchannel FFT;length:32768 samples;samplerate: 48kHz;logarithmic sine wavesweep.
4. MeasurementSystem Qualification (includesalluncertainties):SPL: accuracy+/-0.2dB @1kHz, precision +/-0.5dB 20 Hzto20 kHz,resolution0.05 dB;Frequency:accuracy +/-1%,
precision+/-0.1Hz,resolution the largerof1.5Hz or 1/48octave;Time:accuracy +/-10.4 µs,precision+/-0.5µs, resolution 10.4µs;Angular:accuracy+/-1°,precision+/-0.5°,resolution0.5°.
5. Environment: Measurementstime-windowedandprocessed to eliminateroomeffects,approximatingananechoic environment. Dataprocessedasanechoic or fractionalspace,asnoted.
6. MeasurementDistance: 7.46m.Acousticresponsesrepresentcomplexsummationofthesubsystems at20m.SPLisreferencedtootherdistancesusingtheInverseSquareLaw.
7. EnclosureOrientation: For beamwidthandpolar specifications,asshown inMechanicalSpecification drawing.
8. Volts: Measuredrmsvalueof thetestsignal.
9. Watts: Peraudioindustrypractice,“loudspeaker watts”arecalculated as voltagesquared divided byrated nominal impedance. Thus,these are notTrue Wattunitsof energyasdefined
byInternationalStandard.
10. SPL: (SoundPressure Level) Equivalenttothe averagelevelof asignalreferenced to0dB SPL=20 microPascals.
11.Subsystem: This lists thetransducer(s)and theiracousticloading foreachpassband. Sub=Subwoofer,LF=LowFrequency,MF =MidFrequency,HF =HighFrequency.
12.Operating Mode: User selectable configurations.Betweensystemelements,acomma(,)=separateamplifier channels; a slash(/)=singleamplifierchannel.DSP=DigitalSignalProcessor.
IMPORTANT:To achieve thespecified performance, thelistedexternal signalprocessingmust beusedwith EAW-providedsettings.
13.Operating Range: Range wheretheprocessed FrequencyResponsestays within-10dB SPLofthe poweraveragedSPLwithinthis range; measuredon the geometricaxis.Narrow band
dipsareexcepted.
14.Nominal Beamwidth: Design angleforthe -6dBSPLpoints,referenced to 0dBSPLasthe highest level.
15.AxialSensitivity: PoweraveragedSPLovertheOperating Rangewithan inputvoltagethat wouldproduce1 Watthe nominal impedance;measured with noexternalprocessing onthe
geometricaxis,referenced to1m.
16.Nominal Impedance: Selected 4,8,or 16ohmresistance suchthatthe minimum impedancepoint is nomore than 20%belowthis resistanceoverthe OperatingRange.
17.AcceleratedLifeTest: Maximumtestinput voltage appliedwith an EIA-426Bdefined spectrum; measuredwithrecommended signalprocessingand RecommendedProtectionFilter.
18.CalculatedAxialOutput Limit: Highest averageandpeak SPLs possibleduring theAcceleratedLifeTest. The Peak SPLrepresentsthe2:1(6 dB)crestfactor of theLifeTest signal.
19.High Pass Filter: Thishelpsprotect theloudspeakerfrom excessiveinputsignal levelsatfrequencies below theOperating Range.
GRAPHICDATA
1.Resolution:To removeinsignificantfine details,1/12octave cepstral smoothingwas applied toacousticfrequency responsesand1/3 octavecepstralsmoothing wasappliedto the
beamwidth andimpedancedata. Other graphsareplotted using rawdata.
2.Frequency Responses: Variationinacousticoutputlevelwithfrequencyforaconstantinputsignal. Processed: normalized to0dBSPL.Unprocessedinputs:2V(4ohm nominal impedance),
2.83V(8 ohmnominalimpedance), or4V (16ohmnominal impedance) referencedto a distanceof1 m.
3.Processor Response: The variationinoutput levelwithfrequency for aconstant input signalof0.775 V=0 dBreference.
4.Beamwidth:Averageangle foreach1/3 octavefrequencyband where,startingfrom therearof the loudspeaker,the output firstreaches -6 dBSPLreferencedto0 dBSPLasthehighest
level.Thismethodmeans theoutputmay dropbelow-6 dB SPLwithinthebeamwidthangle.
5.Impedance: Variationin impedancemagnitude,in ohms,withfrequency withoutregardto voltage/currentphase.Thismeans the impedancevalues may not
beusedto calculateTrue Watts(see9 above).
6.Polar Data: Horizontalandvertical polarresponsesfor each1/3octave frequency band100 Hz to16 kHz orOperatingRange.
SIGNAL DIAGRAM
LEGEND
DSP: User-supplied Digital Signal Processor.
HPF: High Pass Filter for crossover or Recommended High Pass Filter.
LPF: Low Pass Filter for crossover.
LF/MF/HF: Low Frequency / Mid Frequency / High Frequency.
AMP: User-supplied PowerAmplifier.
XVR: Passive LPFs, HPFs, and EQ integral to the loudspeaker.
EasternAcoustic Works One Main Street Whitinsville, MA01588 tel [phone] fax [phone] www.eaw.com
EAW products are continually improved. All specifications are therefore subject to change without notice. Part Number: 0011736-90 February 2008
PRELIMINARY