EAW VFS220 User manual

DOUBLE 12-INCH SUBWOOFER
See NOTES TABULAR DATA for details
CONFIGURATION
Subsystem:
Transducer Loading
SUB 2x 12 in cone Vented
Operating Mode:
Amplifier Channels External Signal Processing
Single-amp LF/LF DSP w/1-way filter
PERFORMANCE
Operating Range: 33 Hz to 154 Hz
Nominal Beamwidth:
Horz 360°
Vert 360°
Axial Sensitivity (SPL):
LF1/LF2 (whole space) 96 dB 33 Hz to 154 Hz
(half space) 102 dB 33 Hz to 154 Hz
Input Impedance (ohms):
Nominal Minimum
LF1/LF2 4 4.2 @ 143 Hz
High Pass Filter: High Pass=>35 Hz, 24 dB/octave Butterworth
Accelerated Life Test:
System
LF1/LF2 63.2 V 1000 W @ 4 ohm
Calculated Axial Output Limit (whole space SPL):
Average Peak
LF/LF2 (whole space) 126 dB 132 dB
(half space) 132 dB 138 dB
ORDERING DATA
Description Part Number
EAW VFS220 Double 12-inch Subwoofer Black 2038059-90
EAW VFS220 Dual 12-inch Subwoofer White 2038846-90
Optional Accessories
EAW Eyebolt/Forged Shoulder (M10) 0031810
EAW SBK-MK23_VFS-VFR129 Flybar Black [FB2VSK] 2038319
EAW ACC CASTER KIT [ACC-CK200] 255017
FEATURES
• High output sub bass system
• Dual 12-in cone transducers
• Optimally vented for increased response
• Extended pole mount cup creates stable base
• Long-lasting reliability
APPLICATIONS
Band PA, DJ System, Dance Club, Schools, Houses of Worship,
Rental Systems, Mobile Churches, Auditoriums
DESCRIPTION
The VFS220 sub bass system includes dual, direct radiating 12-in
LF cone transducers mounted in an optimally vented enclosure.
Enclosure venting uses the enclosure’s resonance to enhance LF
response while limiting driver wear.
The VFS220 includes traditional portable features such as handles,
pole cup, and parallel NL4 connectors as well as permanent
installation features such as barrier strip inputs and threaded
mounting points. The unique design integrates the handles into the
enclosure, leaving the sides smooth and attractive. The pole cup
creates a safe, stable base for pole mounted mains.
Optional rigging hardware speeds the installation of pre-configured
arrays of VFR and VFS systems.
Six year warranty.
Eastern Acoustic Works • One Main Street • Whitinsville, MA 01588 • tel [phone] • fax [phone] • www.eaw.com
November 2011Part Number: RD0622 Rev A00EAW products are continually improved. All specications are therefore subject to change without notice.
VFS220 Specifications group • I/S

NOTE: This drawing has been reduced. Do not scale.
Eastern Acoustic Works • One Main Street • Whitinsville, MA 01588 • tel [phone] • fax [phone] • www.eaw.com
November 2011Part Number: RD0622 Rev A00EAW products are continually improved. All specications are therefore subject to change without notice.
VFS220 Specifications group • I/S
123 4
1234
A
B
C
A
B
C
PRO ENGINEER
2037761-CD-B_DWG_CUST_VFS220
THE INFORMATION CONTAINED
HEREIN IS PROPRIETARY AND
CONFIDENTIAL PROPERTY OF
LOUD TECHNOLOGIES, INC.
ALL RIGHTS RESERVED
UNLESS OTHERWISE SPECIFIED:
ALL DIMENSIONS ARE IN INCHES
DUAL [MM] DIMENSIONS
FOR REF ONLY
TOLERANCE IN INCHES
LINEAR ± 0.13 in / ± 3.3 mm
ANGLES ± 1°
(X.XX) = REF DIMS
NO TOLERANCE IMPLIED
TSC = THEORETICAL SHARP CORNER
DIMENSIONS ACROSS CENTERLINES
TO BE SYMMETRICAL
REVISION:
DRAWING NUMBER:
THIRD ANGLE PROJECTION
TITLE:
SCALE:
1 1
www.eaw.com
9.75 [247.7]
19.0 [483]
13.75 [349.3]
2X 25.1
[638]
23.1 [588]
3.7 [93] 2X 18.86
[479.0]
4.32 [109.7]
9.45 [240.0]
18.9 [480]
1.4 [35]
28.8 [730]
23.2 [589]
25.9 [659]
2X 25.1
[638] 18.4
[469]
4X 2.37
[60.3]
8.8 [223]
4X 3.00
[76.2]
22.83 [580.0]
34.8 [885]
2X 14.57
[370.0]
2.2[55]
(M10 POINT)
3.4[87]
(M10 POINT)
DATECHANGE NUMBERREV
12/2/11ECOWHT8075B
2037761-CD B
ASHEET OF 0.050
DWG CUSTOMER VFS220
[MECHANICAL SPECIFICATION]
NOTES: 1. SYMBOL INDICATES CENTER OF BALANCE. 2. SYMBOL INDICATES MOUNTING POINT, M10 THREADED HOLE (PI ANGLE). 3. SYMBOL INDICATES MOUNTING POINT, M10 THREADED HOLE (NUT PLATE). 4. SYMBOL INDICATES MOUNTING POINT, M6 THREADED HOLE FOR CASTER ACCESSORY. 5. SYMBOL INDICATES MOUNTING POINT, M4 THREADED HOLE FOR RUBBER FOOT. 6. WEIGHT APPROX. 89 lb [40.4 kg]. 7. SHIPPING WEIGHT APPROX. 110 lb [49.9 kg].
FRONT
GRILLE NOT SHOWN
FOR CLARITY
LEFT SIDE RIGHT SIDE BACK
2X HANDLE
INPUT
TOP TOP HAT
BOTTOM
2X HANDLE
VFS220
Hardwood plywood
Wear resistant textured black paint
Powder-coated perforated steel
Material
Finish
Grille
ENCLOSURE

PERFORMANCE DATA
See NOTES GRAPHIC DATA for details
Processer Response
LF = green
Frequency Response: Processed
LF = green
Frequency Response: Unprocessed
LF = green
Impedance
LF = green
dB re 0.775V
Frequency (Hz)
SPL (dB) SPL (dB)Degrees
Frequency (Hz)
Frequency (Hz)
Eastern Acoustic Works • One Main Street • Whitinsville, MA 01588 • tel [phone] • fax [phone] • www.eaw.com
November 2011Part Number: RD0622 Rev A00EAW products are continually improved. All specications are therefore subject to change without notice.
VFS220 Specifications group • I/S
10 100 1000 20000
0
-40
-30
-20
-10
20
10
10 100 1000 20000
-10
-50
-40
-30
-20
10
0
10 100 1000 20000
100
60
70
80
90
120
110
100
10
1
10 100 1000 20000

NOTES
TABULAR DATA
1. Measurement/Data Processing Systems: Primary - FChart: proprietary EAW software; Secondary - Brüel & Kjær 2012.
2. Microphone Systems: Earthworks M30; Brüel & Kjær 4133
3. Measurements: Dual channel FFT; length: 32 768 samples; sample rate: 48 kHz; logarithmic sine wave sweep.
4. Measurement System Qualication (includes all uncertainties):SPL: accuracy +/-0.2 dB @ 1 kHz, precision +/-0.5 dB 20 Hz to 20 kHz, resolution 0.05 dB; Frequency: accuracy +/-1 %, precision +/-0.1
  Hz,resolutionthelargerof1.5Hzor1/48octave;Time:accuracy+/-10.4μs,precision+/-0.5μs,resolution10.4μs;Angular:accuracy+/-1°,precision+/-0.5°,resolution0.5°.
5. Environment: Measurements time-windowed and processed to eliminate room effects, approximating an anechoic environment. Data processed as anechoic or fractional space, as noted.
6. Measurement Distance: 7.46 m. Acoustic responses represent complex summation of the subsystems at 20 m. SPL is referenced to other distances using the Inverse Square Law.
7. Enclosure Orientation:Forbeamwidthandpolarspecications,asshowninMechanicalSpecicationdrawing.
8. Volts: Measured rms value of the test signal.
9. Watts:Peraudioindustrypractice,“loudspeakerwatts”arecalculatedasvoltagesquareddividedbyratednominalimpedance.Thus,thesearenotTrueWattunitsofenergyasdened
by International Standard.
10. SPL: (Sound Pressure Level) Equivalent to the average level of a signal referenced to 0 dB SPL = 20 microPascals.
11. Subsystem: This lists the transducer(s) and their acoustic loading for each passband. Sub = Subwoofer, LF = Low Frequency, MF = Mid Frequency, HF = High Frequency.
12. Operating Mode:Userselectablecongurations.Betweensystemelements,acomma(,)=separateamplierchannels;aslash(/)=singleamplierchannel.DSP=DigitalSignalProcessor.
  IMPORTANT:Toachievethespeciedperformance,thelistedexternalsignalprocessingmustbeusedwithEAW-providedsettings.
13. Operating Range: Range where the processed Frequency Response stays within -10 dB SPL of the power averaged SPL within this range; measured on the geometric axis. Narrow band
dips are excepted.
14. Nominal Beamwidth: Design angle for the -6 dB SPL points, referenced to 0 dB SPL as the highest level.
15. Axial Sensitivity: Power averaged SPL over the Operating Range with an input voltage that would produce 1 W at the nominal impedance; measured with no external processing on
the geometric axis, referenced to 1 m.
16. Nominal Impedance: Selected 4, 8, or 16 ohm resistance such that the minimum impedance point is no more than 20% below this resistance over the Operating Range.
17. Accelerated Life Test:MaximumtestinputvoltageappliedwithanEIA-426Bdenedspectrum;measuredwithrecommendedsignalprocessingandRecommendedProtectionFilter.
18. Calculated Axial Output Limit: Highest average and peak SPLs possible during the Accelerated Life Test. The Peak SPL represents the 2:1 (6 dB) crest factor of the Life Test signal.
19. High Pass Filter: This helps protect the loudspeaker from excessive input signal levels at frequencies below the Operating Range.
GRAPHIC DATA
1. Resolution:Toremoveinsignicantnedetails,1/12octavecepstralsmoothingwasappliedtoacousticfrequencyresponsesand1/3octavecepstralsmoothingwasappliedtothebeamwidthand 
impedance data. Other graphs are plotted using raw data.
2. Frequency Responses: Variation in acoustic output level with frequency for a constant input signal. Processed: normalized to 0 dB SPL. Unprocessed inputs: 2 V (4 ohm nominal impedance), 2.83 V (8
ohm nominal impedance), or 4 V (16 ohm nominal impedance) referenced to a distance of 1 m.
3. Processor Response: The variation in output level with frequency for a constant input signal of 0.775 V = 0 dB reference.
4. Beamwidth:Averageangleforeach1/3octavefrequencybandwhere,startingfromtherearoftheloudspeaker,theoutputrstreaches-6dBSPLreferencedto0dBSPLasthehighestlevel.Thismethod
means the output may drop below -6 dB SPL within the beamwidth angle.
5. Impedance: Variation in impedance magnitude, in ohms, with frequency without regard to voltage/current phase. This means the impedance values may not be used to calculate True Watts (see 9 above).
6. Polar Data: Horizontal and vertical polar responses for each 1/3 octave frequency band 100 Hz to 16 kHz or Operating Range.
Eastern Acoustic Works • One Main Street • Whitinsville, MA 01588 • tel [phone] • fax [phone] • www.eaw.com
November 2011Part Number: RD0622 Rev A00EAW products are continually improved. All specications are therefore subject to change without notice.
VFS220 Specifications group • I/S
INPUT PANEL SIGNAL DIAGRAM
LEGEND
DSP: EAW UX8800 Digital Signal Processor –or– Integral Digital Signal Processing for NT products.
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 Power Amplifier –or– Integral Amplifier for NT products.
XVR: Passive LPFs, HPFs, and EQ integral to the loudspeaker.
EAW Focusing: Digital Signal Processor capable of implementing EAW Focusing.
DSP
EQ
HPF
LPF
AMP
1-Way, Single-Amp (LF1/LF2)
LF
LF
−
VFS250
THIS PRODUCT HAS M10 MOUNTING POINTS. SEE OWNER’S MANUAL.
PIN 1−...−
PIN 1+...+
+
REV: DESCRIPTION:
REVISIONS
A00 NEW ISSUE PER ECOWHT8165 MJC
DWG SPEC/INPUT RATH
SCALE:
2037638-SD
MJC 12/6/11
DRAWING NUMBER:
DATE:
DRAWN BY:
1 of 1
1:1
REV:
A00
LOUD TECHNOLOGIES INC, ALL RIGHTS RESERVED
ONE MAIN STREET, WHITINSVILLE, MA 01588 USA
LOUD Technologies Inc.
TITLE:
SHEET:
ADOBE ILLUSTRATOR