Transcript
VLF 212 Application Solutions
VERSATILE LOW FREQUENCY SERIES COMPACT DUAL 12-INCH SLOT-LOADED SUBWOOFER SYSTEM
SPECIFICATIONS Loudspeaker Type: Compact subwoofer Operating Range: Max Input Ratings:
35 Hz to 200 Hz 43 Hz to 160 Hz (±2 dB) processed 300W continuous, 750W program, 4 ohms 35 volts RMS, 77 volts momentary peak
Recommended Power 630W to 900W @ 4 ohms Amplifier:
Shown: VLF212I
Sensitivity (1W/1m): 97 dB SPL (50 Hz to 160 Hz 1/3 octave bands) Maximum Output: 122 dB SPL / 129 dB SPL (peak) Nominal Impedance: 4 ohms Minimum Impedance: 4.1 ohms @ 90 Hz Nominal –6dB 360° H x 180° V Beamwidth: Axial Q / DI: 1/0, 50 Hz to 160 Hz Recommended Signal 35 Hz high pass filter, 48 dB/Oct Processing: Drivers: LF (2) 12" Driver Protection: DYNA-TECH™ Install Version (1) NL4-compatible locking connector (1) 2 conductor barrier strip Input Connection: Portable Version (2) NL4-compatible locking connector (2) 1/4" jack with high-pass output switch
APPLICATIONS Houses of worship Performing arts centers Theaters, lecture halls, auditoria Restaurants The “cafegymnatorium” Portable bass reinforcement
FEATURES Low profile design, small footprint Designed to work as a traditional subwoofer or in steered bass arrays DYNA-TECH™ protection circuitry Under-stage and other “hidden” LF applications Optional steered array brackets for array configurations Available in black or white finishes Optional portable version (“P” suffix) with Ergo-Grip handles, pole mount socket, rubber feet and eight fly points Five-year warranty
Enclosure: 11-ply cross-laminated birch Finish: Black or white paint finish Mounting/Rigging Install Version - (12) M10 hang points Provisions: Portable Version - (8) M10 hang points Required Accessories: Digital speaker processor Optional Accessories: VLF-SAB steered array bracket Dimensions—Height: 20 inches (508 mm) Width: 21.75 inches (552 mm) Depth: 20 inches (508 mm) Weight: 88 lbs (39.9 kg) NOTES: 1. Sensitivity: Half-space pink noise measurement at 4 ft (1.2 m) at 25% power; extrapolated to 1 meter and an input of 2 volts RMS. 2. Watts: All wattage figures are calculated using the rated nominal impedance.
DESCRIPTION The VLF212 is a compact dual 12-inch subwoofer system with a nogrille design and slot-loaded woofers for extended low frequency response down to 50 Hz in passive mode or 43 Hz using DSP. The standard install version comes equipped with twelve generous fly points for creating steered subwoofer arrays. The VLF212 is available in an optional portable version which comes equipped with two Ergo-Grip handles, a top-mounted pole socket, and rubber feet. The portable enclosures incorporate eight fly points, dual NL4-compatible connectors and dual ¼" jacks with a high-pass output switch for running the subwoofer and a full-range cabinet from one single amp channel. The VLF212 is a powerful and innovative low frequency subwoofer that when arrayed is effective in reducing unwanted reflections in theatres, restaurants, auditoria, houses of worship, schools and other applications, fitting comfortably into areas where larger subwoofers are impractical. VLF212 OPTIONS “B” suffix
Black paint finish with black hardware
“W” suffix
White paint finish with white hardware
“I” suffix
Install version with twelve M10 hang points
“P” suffix
Portable version with built-in handles, rubber feet, pole mount socket and eight M10 hang points.
“A” suffix
Amplified (powered) version with integrated 1000 watt amplifier
Community Professional Loudspeakers, 333 East Fifth Street, Chester, PA 19013-4511 USA 610-876-3400 · Fax 610-874-0190 ·
[email protected] · www.communitypro.com
VLF 212 VERSATILE LOW FREQUENCY SERIES COMPACT DUAL 12-INCH SLOT-LOADED SUBWOOFER SYSTEM
True t o Specificat ion
Impedance
Frequency Response: Processed 10 Hz Resolution, 1/8 octave 110
16
100
12
Ohms
dB SPL
Min Z 20 Hz - 200 Hz = 4.1 Ohms @ 90 Hz
20
120
90
8
80
4
70 10
100
0
1,000
10
Frequency in Hertz
100
1,000
Frequency in Hertz
Frequency Response: Unprocessed
Frequency Response: Digital Signal Processor
10 Hz Resolution, 1/8 octave
5
dB SPL
120 110 100
0
90 80 70 10
100
1,000
-5
Frequency in Hertz -10
-15
20
30
40
50
70
100
200
300
400
Frequency (Hz)
DIMENSIONS 21.750"[552.45]
20.000"[508]
4.000"[101.6] 2.209"[56.1]
TOP VIEW
8.000"[203.2]
FACE
2.209"[56.1] 2.250"[57.15]
(6) M10 HANG POINTS
20.000"[508] 10.299" [261.6]
SPEAKER ACCESS PANEL
2.250"[57.15]
FRONT VIEW
SIDE VIEW
REAR VIEW
FACE
FEET
BOTTOM VIEW
Community strives to improve its products on a continual basis. Specifications are therefore subject to change without notice.
communitypro.com VLF212 [2011-12-05]
500
VLF 212 VERSATILE LOW FREQUENCY SERIES COMPACT DUAL 12-INCH SLOT-LOADED SUBWOOFER SYSTEM
Application Solutions
VLF212 - Portable Option
Portable VLF212 models include: Built-in Ergo-Grip handles Rubber feet Pole mount socket Eight M10 hang points Two NL4-compatible locking connectors Two ¼" input jacks.
Order Model VLF212P.
21.750"[552.45] 10.875"[276.23] VLF212P
STACKING CUP FOOT RECESS RECESS 20.000"[508] 10.000"[254]
2.209"[56.1]
TOP VIEW
2.209"[56.1]
FACE
2.250"[57.15] (4) M10 HANG POINTS
20.000"[508]
SPEAKER ACCESS PANEL
2.250"[57.15]
SIDES
FRONT VIEW
BACK VIEW
FACE FEET
BOTTOM VIEW
Community Professional Loudspeakers, 333 East Fifth Street, Chester, PA 19013-4511 USA 610-876-3400 · Fax 610-874-0190 ·
[email protected] · www.communitypro.com
