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Enceinte passive de type 3.pdf · 974 mots · du marché « Transformation complète du Musée de la Carte à Jouer - Travaux multi-corps de métier (18 lots) : démolitions,… », dossier de consultation officiel.
Speaker System VXC4
Overview
A versatile line-up for clear consistent sound.
Features
• Series offers three different woofer sizes in either black or white.
• Features newly customized transducers for superb music reproduction as well as crystal clear announcements.
• Designed with optimized bass-reflex tuning to offer a firm, tight low-end.
• Equipped with internal transformers that allow both high and low impedance drive, which can be selected by simply switching the tap on the
baffle.
• Anti-Drop tab allows the speakers to be mounted temporarily in the ceiling for improved safety and ease of installation.
• A flexible carrying band makes the speakers very portable and allows carrying multiple speakers at once.
• Comes complete with O-rings and tile rails for safer and smoother installation.
• Overload protection circuit provided to protect speaker components.
• Comes with paintable speaker grilles for flexible design ideas.
Technical Data Sheet 1/6
Speaker System VXC4
Specifications
General Specifications
System Type Full-range, Bass-reflex
Components 4" full-range
Frequency Range (-10dB) 80Hz-20kHz*1
Coverage Angle (Horizontal x Vertical) 130° conical*1
Nominal Impedance 8Ω
Transformar Taps 70V 30W (170Ω), 15W (330Ω), 7.5W (670Ω), 3.8W (1.3kΩ)
100V 30W (330Ω), 15W (670Ω), 7.5W (1.3kΩ)
Power Rating NOISE 30W
PGM 60W
MAX 120W
Sensitivity (1W, 1m) 87dB SPL*1
Maximum SPL (Caluculated, 1m) 108dB SPL*2
Connectors 1 x Euroblock (4P) (Input: +/-, Loop Thru: +/-)
Material, Finish, Color Black, White
Dimensions (W x H x D) Ø225mm x 195mm (8.9" x 7.7")
Net Weight 2.6kg (5.7lbs)
Packaging Pair
Cutout Size Ø186mm (Ø7.3")
Certificate UL1480, UL2043, NFPA70, CE, EAC, RoHS
*1 Half space (2π)
*2 Calculated based on power rating and sensitivity, exclusive of power compression
Accessories
Included Accessories O-ring, Tile Rail, Cutout Template
Technical Data Sheet 2/6
Speaker System VXC4
Dimensions
Unit: mm (inch)
O-ring
2)
6)
(7.
(9.
83
43
Ø1
Ø2
259 (10.2) 61 (2.4)
Tile Rail
32 (1.3)
608 (23.9) 28 (1.1)
38 (1.5)
644 (25.4)
Technical Data Sheet 3/6
Speaker System VXC4
Architectural and Engineering Specifications
The loudspeaker shall be of in-ceiling design, a full-range bass-reflex type and shall have a back can. The loudspeaker shall consist of a 4"
(10cm) cone driver. The loudspeaker shall be equipped with internal transformers that allow both high-impedance and low-impedance drive. The
Anti-Drop tab shall be provided for improved safety and ease of installation that allows the loudspeaker to be mounted temporarily in the ceiling.
The flexible carrying band shall be provided for improved portability. The power rating shall be set by switching a transformer tap on the baffle as
follows: 30W/15W/7.5W in 100V line; 30W/15W/7.5W/3.8W in 70V line; and 60W into 8 ohms. The loudspeaker shall be capable of meeting the
following performance criteria: The measured sensitivity shall be 87dB SPL (at 1W, 1m, in half-space); The maximum SPL shall be 108dB SPL
(at 1m); The frequency range shall be 80Hz-20kHz (10dB below rated sensitivity, in half-space); The nominal coverage angle shall be 130° polar
conical (average 500Hz-4kHz). The loudspeaker shall be provided for an overload protection circuit to protect network and transducers. The
4-pin Euroblock connector shall be provided for an input and a loop-thru. The back can shall be constructed of 1mm-thick black-painted steel
and the baffle of HIPS. The grille shall be constructed of 0.6mm-thick steel and the trim ring of ABS, with an aperture ratio of 51%. The grille shall
have the following color variation: black-painted (VXC4) or white-painted (VXC4W). Overall front face diameter of the loudspeaker shall not exceed
225mm (8.9"), overall depth from the bottom of the ceiling shall not exceed 195mm (7.7"), and shall weigh no more than 2.6kg (5.7lbs). The
loudspeaker shall have included accessories as follows: The O-rings and the tile rails shall be included for safer and smoother installation. The
loudspeaker shall be equipped with an eyelet for secondary safety wire usage. The loudspeaker shall be the Yamaha VXC4 or VXC4W.
Technical Data Sheet 4/6
Speaker System VXC4
On-axis Frequency Response
2π
120
Level [dB SPL, 1W/1m]
110
100
90
80
70
60
50
10 100 1000 10000 100000
Frequency [Hz]
Beamwidth
-3dB -6dB -9dB
360
270
Angle [degree]
180
90
0
10 100 1000 10000 100000
Frequency [Hz]
Directivity Index
30
Directivity Index [dB]
20
10
0
10 100 1000 10000 100000
Frequency [Hz]
Technical Data Sheet 5/6
Speaker System VXC4
Polar Plots
63 Hz Octave Band 125 Hz Octave Band 250 Hz Octave Band
50Hz 100Hz 200Hz
0 0 0
6 63Hz 6 125Hz 6 250Hz
330 30 330 30 330 30
0 80Hz 0 160Hz 0 315Hz
-6 -6 -6
300 -12 60 300 -12 60 300 -12 60
-18 -18 -18
-24 -24 -24
270 -30 90 270 -30 90 270 -30 90
240 120 240 120 240 120
210 150 210 150 210 150
180 180 180
500 Hz Octave Band 1000 Hz Octave Band 2000 Hz Octave Band
400Hz 800Hz 1600Hz
0 0 0
6 500Hz 6 1000Hz 6 2000Hz
330 30 330 30 330 30
0 630Hz 0 1250Hz 0 2500Hz
-6 -6 -6
300 -12 60 300 -12 60 300 -12 60
-18 -18 -18
-24 -24 -24
270 -30 90 270 -30 90 270 -30 90
240 120 240 120 240 120
210 150 210 150 210 150
180 180 180
4000 Hz Octave Band 8000 Hz Octave Band 16000 Hz Octave Band
3150Hz 6300Hz 12500Hz
0 0 0
6 4000Hz 6 8000Hz 6 16000Hz
330 30 330 30 330 30
0 5000Hz 0 10000Hz 0 20000Hz
-6 -6 -6
300 -12 60 300 -12 60 300 -12 60
-18 -18 -18
-24 -24 -24
270 -30 90 270 -30 90 270 -30 90
240 120 240 120 240 120
210 150 210 150 210 150
180 180 180
*All information subject to change without notice.
*All trademarks and registered trademarks are property of their respective owners.
Created in March, 2017
Technical Data Sheet 6/6
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