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DOUBLE 15-INCH SUBWOOFERSee NOTES TABULAR DATA for detailsCONFIGURATIONSubsystem: Transducer Loading
SUB 2x 15 in cone Vented
Operating Mode:
Amplifier Channels External Signal Processing
Single-amp LF/LF DSP w/1-way filterPERFORMANCEOperating Range: 30 Hz to 160 Hz
Nominal Beamwidth: Horz 360° Vert 360°
Axial Sensitivity (SPL): LF1/LF2 (whole space) 99 dB 30 Hz to 160 Hz
(half space) 105 dB 30 Hz to 160 Hz
Input Impedance (ohms): Nominal Minimum
LF1/LF2 4 3.7 @ 33 Hz
High Pass Filter: High Pass=>30 Hz, 24 dB/octave Butterworth
Accelerated Life Test: System
LF1/LF2 60 V 900 W @ 4 ohm
Calculated Axial Output Limit: Average Peak LF1/LF2 (whole space) 128 dB 134 dB
(half space) 134 dB 140 dB
ORDERING DATADescription Part NumberEAW VFS250i Dual 15-inch Subwoofer Black 2041017-90
EAW VFS250i Dual 15-inch Subwoofer White 2041032-90
Optional AccessoriesEAW Eyebolt/Forged Shoulder (M10) 0029818EAW SBK-MK53_VFS-VFR159 Flybar Black [FB5VSK] 2038820EAW ACC CASTER KIT 100 [ACC-CK100] 0032377-90
VFS250i Specifications
Eastern Acoustic Works | One Main Street | Whitinsville, MA 01588 USA | tel 800 992 5013 / +1 508 234 6158 | fax 508 234 8251 | www.eaw.com
JUN2014Part Number: RD0765 Rev A00EAW products are continually improved. All specifications are therefore subject to change without notice.
FEATURES• High output sub bass system• Dual 15-in cone transducers• Optimally vented for increased response• Extended pole mount cup creates stable base• Easy lift handles (Black version only)
DESCRIPTIONThe VFS “i” revision brings the VF concept more fully into the EAW product line. VFS “i” Series black versions use handles from the KF and JF Series. An installation only white version comes without handles or a pole mount cup.
The VFS250i sub bass system includes dual, direct radiating 15-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 VFS250i black version includes traditional portable features such as a pole-mount cup, parallel NL4 4-terminal connectors, barrier strip inputs, and handles that accept accessory covers for permanent installation. The white, installation-only versions omit handles and the pole-mount cup but include NL4 connectors, barrier strip inputs, and multiple mounting points. The new design leaves the enclosure sides completely smooth and attractive. Optional rigging hardware is available for preconfigured arrays of VFR and VFS systems.
Six year warranty.
NOTE: This drawing has been reduced. Do not scale.
VFS250i Specifications
Eastern Acoustic Works | One Main Street | Whitinsville, MA 01588 USA | tel 800 992 5013 / +1 508 234 6158 | fax 508 234 8251 | www.eaw.com
JUN2014Part Number: RD0765 Rev A00EAW products are continually improved. All specifications are therefore subject to change without notice.
Hardwood plywoodWear resistant textured black paintPowder-coated perforated steel
MaterialFinishGrille
ENCLOSURE
VFS250i BLACK
12
34
12
34
ABC
ABC
PRO
EN
GIN
EER
THE
INFO
RMA
TIO
N C
ON
TAIN
EDH
EREI
N IS
PRO
PRIE
TARY
AN
DCO
NFI
DEN
TIA
L PR
OPE
RTY
OF
LOU
D T
ECH
NO
LOG
IES,
INC.
ALL
RIG
HTS
RES
ERVE
D
UN
LESS
OTH
ERW
ISE
SPEC
IFIE
D:
ALL
DIM
ENSI
ON
S A
RE IN
INCH
ES D
UA
L [M
M] D
IMEN
SIO
NS
FOR
REF
ON
LY
TOLE
RAN
CE IN
INCH
ESLI
NEA
R ±
0.13
in /
± 3.
3 m
mA
NG
LES
± 1°
(X
.XX)
= R
EF D
IMS
NO
TO
LERA
NCE
IMPL
IED
TS
C =
THEO
RETI
CAL
SHA
RP C
ORN
ER
DIM
ENSI
ON
S A
CRO
SS C
ENTE
RLIN
ESTO
BE
SYM
MET
RICA
LRE
VISI
ON
:D
RAW
ING
NU
MBE
R:
THIR
D A
NG
LE P
ROJE
CTIO
N
TITL
E:
SCA
LE:
1
1
ww
w.e
aw.c
om
28.3
[720
]
2X 2
1.26
[540
.0]
25.6
[650
]
28.1
[713
]
4.32
[109
.7]
2X 1
9.29
[490
.0]
11.8
1[3
00.0
]
2X 2
5.2
[639
]
20.9
[530
]4X
2.3
7[6
0.3
]4X
3.0
0[7
6.2
]
13.5
[343
]
22.8
8[5
81.2
]
3.4[
87]
(M10
PO
INT)
32.4
[823
]2.
2[55
](M
10 P
OIN
T)
1.4
[35]23
.6[6
00]
21.4
[543
]
2X 2
5.2
[639
]
3.7
[93] 13
.0[3
30]
18.7
5[4
76.3
]
11.8
8[3
01.8
]
DA
TECH
AN
GE
NU
MBE
RRE
V
7/12
/13
ECO
WH
T955
8A
2041
079-
CDA
ASH
EET
O
F 0.
050
DW
G C
UST
OM
ER
VFS2
50i
[MEC
HA
NIC
AL
SPEC
IFIC
ATI
ON
]
NO
TES:
1. S
YMBO
L
IND
ICA
TES
CEN
TER
OF
B
ALA
NCE
.2.
SYM
BOL
IN
DIC
ATE
S M
OU
NTI
NG
PO
INT,
M
10 T
HRE
AD
ED H
OLE
(PI A
NG
LE).
3. S
YMBO
L
IND
ICA
TES
MO
UN
TIN
G P
OIN
T,
M10
TH
REA
DED
HO
LE (N
UT
PLA
TE).
4. S
YMBO
L
IND
ICA
TES
MO
UN
TIN
G P
OIN
T,
M6
THRE
AD
ED H
OLE
FO
R CA
STER
ACC
ESSO
RY.
5. S
YMBO
L
IND
ICA
TES
MO
UN
TIN
G P
OIN
T,
M4
THRE
AD
ED H
OLE
FO
R RU
BBER
FO
OT.
6. W
EIG
HT
APP
ROX.
109
lb [4
9.4
kg].
7. S
HIP
PIN
G W
EIG
HT
APP
ROX.
134
lb [6
0.8
kg].
2X H
AN
DLE
FRO
NT
GRI
LLE
NO
T SH
OW
NFO
R CL
ARI
TYBA
CK
2X H
AN
DLE IN
PUT
LEFT
SID
E2X
HA
ND
LE
TOP
TOP
HA
T
BOTT
OM
RIG
HT
SID
E
VFS2
50i
NOTE: This drawing has been reduced. Do not scale.
VFS250i Specifications
Eastern Acoustic Works | One Main Street | Whitinsville, MA 01588 USA | tel 800 992 5013 / +1 508 234 6158 | fax 508 234 8251 | www.eaw.com
JUN2014Part Number: RD0765 Rev A00EAW products are continually improved. All specifications are therefore subject to change without notice.
Hardwood plywoodWear resistant textured white paintPowder-coated perforated steel
MaterialFinishGrille
ENCLOSURE
VFS250i WHITE
12
34
12
34
ABC
ABC
PRO
EN
GIN
EER
THE
INFO
RMA
TIO
N C
ON
TAIN
EDH
EREI
N IS
PRO
PRIE
TARY
AN
DCO
NFI
DEN
TIA
L PR
OPE
RTY
OF
LOU
D T
ECH
NO
LOG
IES,
INC.
ALL
RIG
HTS
RES
ERVE
D
UN
LESS
OTH
ERW
ISE
SPEC
IFIE
D:
ALL
DIM
ENSI
ON
S A
RE IN
INCH
ES D
UA
L [M
M] D
IMEN
SIO
NS
FOR
REF
ON
LY
TOLE
RAN
CE IN
INCH
ESLI
NEA
R ±
0.13
in /
± 3.
3 m
mA
NG
LES
± 1°
(X
.XX)
= R
EF D
IMS
NO
TO
LERA
NCE
IMPL
IED
TS
C =
THEO
RETI
CAL
SHA
RP C
ORN
ER
DIM
ENSI
ON
S A
CRO
SS C
ENTE
RLIN
ESTO
BE
SYM
MET
RICA
LRE
VISI
ON
:D
RAW
ING
NU
MBE
R:
THIR
D A
NG
LE P
ROJE
CTIO
N
TITL
E:
SCA
LE:
1
1
ww
w.e
aw.c
om
28.3
[720
]
2X 2
1.26
[540
.0]
4.32
[109
.7]
2X 1
9.29
[490
.0]
11.8
1[3
00.0
]
2X 2
5.2
[639
]
22.8
8[58
1.2]
3.4[
87]
(M10
PO
INT)
3.7
[93]
2X 2
5.2
[639
]
23.6
[600
]
32.4
[823
]2.
2[55
]M
10 P
OIN
T
13.0
[330
]
11.8
8[3
01.8
]
18.7
5[4
76.3
]
1.4
[35] 25
.6[6
50]
28.1
[713
]
DA
TECH
AN
GE
NU
MBE
RRE
V
7/30
/13
ECO
WH
T955
8A
2041
081-
CDA
ASH
EET
O
F 0.
050
DW
G C
UST
OM
ER V
FS25
0i[N
O H
AN
DLE
S][M
ECH
AN
ICA
L SP
ECIF
ICA
TIO
N]
NO
TES:
1. S
YMBO
L
IND
ICA
TES
CEN
TER
OF
BALA
NCE
.2.
SYM
BOL
IN
DIC
ATE
S M
OU
NTI
NG
PO
INT,
M
10 T
HRE
AD
ED H
OLE
(PI A
NG
LE).
3. S
YMBO
L
IND
ICA
TES
MO
UN
TIN
G P
OIN
T,
M10
TH
REA
DED
HO
LE (N
UT
PLA
TE).
5. S
YMBO
L
IND
ICA
TES
MO
UN
TIN
G P
OIN
T,
M4
THRE
AD
ED H
OLE
FO
R RU
BBER
FO
OT.
6. W
EIG
HT
APP
ROX.
109
lb [4
9.4
kg].
7. S
HIP
PIN
G W
EIG
HT
APP
ROX.
134
lb [6
0.8
kg].
BOTT
OM
FRO
NT
GRI
LLE
NO
T SH
OW
NFO
R CL
ARI
TYRI
GH
T SI
DE
BACK
INPU
TLE
FT S
IDE
TOP
VFS2
50i
PERFORMANCE DATASee NOTES GRAPHIC DATA for details
Frequency Response: ProcessedComplete = green
Frequency Response: UnprocessedComplete = green
SP
L (d
B)
SP
L (d
B)
Frequency (Hz) Frequency (Hz)
ImpedanceComplete = green
Processer ResponseComplete = green
Ohm
s
Deg
rees
Frequency (Hz) Frequency (Hz)
100
10
110 100 1000 20000
VFS250i Specifications
Eastern Acoustic Works | One Main Street | Whitinsville, MA 01588 USA | tel 800 992 5013 / +1 508 234 6158 | fax 508 234 8251 | www.eaw.com
JUN2014Part Number: RD0765 Rev A00EAW products are continually improved. All specifications are therefore subject to change without notice.
10 100 1000 20000
100
60
70
80
90
120
110
10 100 1000 20000
-10
-50
-40
-30
-20
10
0
10 100 1000 20000
0
-40
-30
-20
-10
20
10
NOTESTABULAR 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 Qualification (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,resolutionthelargerof1.5Hzor1/48octave;Time:accuracy+/-10.4μs,precision+/-0.5μs,resolution10.4μs;Angular:accuracy+/-1°,precision+/-0.5°,resolution0.5°. 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:Forbeamwidthandpolarspecifications,asshowninMechanicalSpecificationdrawing. 8. Volts: Measured rms value of the test signal. 9. Watts:Peraudioindustrypractice,“loudspeakerwatts”arecalculatedasvoltagesquareddividedbyratednominalimpedance.Thus,thesearenotTrueWattunitsofenergyasdefined 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:Userselectableconfigurations.Betweensystemelements,acomma(,)=separateamplifierchannels;aslash(/)=singleamplifierchannel.DSP=DigitalSignalProcessor. IMPORTANT:Toachievethespecifiedperformance,thelistedexternalsignalprocessingmustbeusedwithEAW-providedsettings. 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:MaximumtestinputvoltageappliedwithanEIA-426Bdefinedspectrum;measuredwithrecommendedsignalprocessingandRecommendedProtectionFilter. 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:Toremoveinsignificantfinedetails,1/12octavecepstralsmoothingwasappliedtoacousticfrequencyresponsesand1/3octavecepstralsmoothingwasappliedtothebeamwidthand 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:Averageangleforeach1/3octavefrequencybandwhere,startingfromtherearoftheloudspeaker,theoutputfirstreaches-6dBSPLreferencedto0dBSPLasthehighestlevel.Thismethod 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.
VFS250i Specifications
Eastern Acoustic Works | One Main Street | Whitinsville, MA 01588 USA | tel 800 992 5013 / +1 508 234 6158 | fax 508 234 8251 | www.eaw.com
JUN2014Part Number: RD0765 Rev A00EAW products are continually improved. All specifications are therefore subject to change without notice.
INPUT PANEL SIGNAL DIAGRAM
LEGENDDSP: 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
−
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-SDMJC 12/6/11DRAWING NUMBER:DATE:DRAWN BY:
1 of 1
1:1REV:
A00LOUD TECHNOLOGIES INC, ALL RIGHTS RESERVED
ONE MAIN STREET, WHITINSVILLE, MA 01588 USA
LOUD Technologies Inc.
TITLE:
SHEET:ADOBE ILLUSTRATOR