P R OFE S S I ON A L
LF215-4A
FEATURES - THE ALTEC LANSING DIFFERENCE
• Dual 15” / 380mm Low Frequency Speaker
•High Performance 500 W AES / 2,000 W Peak Power Handling
•Excellent Broadband Efficiency – 103 dB SPL, 1 W 1 m
•Matching Footprint To Altec’s DE6412 & DE9412
•Strong 13-Ply Birch Paintable Cabinet
•Steel Reinforced Suspension Points
•Forged Eyebolt Suspension Kit Included
•Available in Charcoal Gray or White Finishes
GENERAL PRODUCT DESCRIPTION
The LF215-4A is a dual 15” / 380mm subwoofer with the same footprint as the Altec Lansing DE6412 and DE9412 Duplex® full-range speaker systems. In addition to its use with Altec’s DE
&DS-series full-range speaker systems, the LF215-4A can be easily incorporated into component-based sound systems. The LF215-4A has been designed to provide extended low frequency performance in Auditoriums, Performing Arts Centers, Houses of Worship, or any facility requiring low frequency reinforcement for full-range music reproduction.
Two of the Altec model 4156-8A 15” / 380mm woofers
are used in the LF215-4A. The drivers may be connected in parallel (for a single four ohm load) or driven individually (for two, eight ohm loads) via a switch and separate driver inputs. This robust component has been designed to deliver tight, punchy low frequency reproduction in vented speaker cabinets. The 4156-8A has a corrosion resistant die-cast frame and moisture-resistant cone for maximum durability in all environments.
The 13-ply birch plywood enclosure is paintable, and features steel reinforced suspension points. Altec Lansing includes a forged eyebolt suspension kit with each subwoofer. Input connections are via barrier strip or Neutrik® Speakon® connectors. The LF215-4A is offered in either charcoal grey or white, with contrasting cloth covered metal grille. Altec Lansing includes neutral grille cloth with each subwoofer, allowing you to dye the cloth to integrate the subwoofer into the surroundings.
The LF215-4A is designed to work in conjunction with Altec’s DE6412 and DE9412 Duplex® 12”/300mm full-range speaker systems. Presets are available for the Altec Lansing 4048A
4-in x 8-out DSP Processor, allowing the system designer to easily incorporate the LF215-4A into multi-channel applications.
FREQUENCY RESPONSE 1, 2
42 Hz - 650 Hz (±3 dB)
USABLE LOW FREQUENCY LIMIT (-10 dB) 1, 2
33 Hz
SENSITIVITY 3
103 dB SPL, (2.00 V input)
POWER HANDLING 4
500 W continuous; 2,000 W peak
MAXIMUM OUTPUT (1 m) 5
130 dB SPL continuous; 136 dB SPL peak
TRANSDUCER COMPONENTS
2x 15 in. Woofers (4156-8A)
IMPEDANCE 7
Nominal: | 4.0 | Ω |
Minimum: | 3.5 | Ω at 41 Hz |
HARMONIC DISTORTION 8
1% rated power | |
2nd Harmonic | 0.30% |
3rd Harmonic | 0.40% |
THD | 0.63% |
10% rated power | |
2nd Harmonic | 1.38% |
3rd Harmonic | 0.49% |
THD | 1.54% |
| |
INPUT CONNECTIONS
2x 4 position barrier strip and 2x NL4
CONTROLS
Drivers in Parallel or Split Mode switch
ENCLOSURE MATERIALS & FINISH
18 mm, 13 ply Birch Plywood Finished with Charcoal Grey or White Catalyzed Polyurethane
SUSPENSION SYSTEM 9
Working Load Limit (maximum weight applied to uppermost mounting point): tbd lbs. (tbd kg)
(12)3/8 in.-16 Threaded Mounting Suspension Points (3 each top & bottom and 2 each sides & back)
DIMENSIONS
37.50in. (H) x 24.13 in. (W) x 26.13 in. (D) x 10.13 in. (W rear)
953 mm (H) x 613 mm (W) x 664 mm (D) x 257 mm (W rear)
WEIGHT
Net | 115 lbs. (52.3 kg) |
Shipping | 138 lbs. (62.7 kg) |
