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Connections
Normal Connection
Amplifier connections to the LF-4215-8F are made on the rear panel via a Neutrik NL4P Speakon
provides power to both woofers of the LF-4215-8F via the 1+ and 1- terminals. The woofers are internally wired in parallel. Pre-made Speakon cables
using high grade, 2 or 4 conductor stranded wire are readily available from a number of suppliers and is highly recommended.
Specifications
Frequency Range
±3 dB
-10 dB
Maximum Output
Impedance
Maximum Input Power
100 hours of 6 dB crest factor pink
noise, 30 – 500 Hz
2 hours of 6 dB crest factor pink
noise, 30 – 500 Hz, AES method
Sensitivity (half space / watt / 1 meter)
Transducers
Recommended Processing
Nominal Coverage
Connectors
Enclosure
Dimensions (HWD)
Weight Shipping
Net Weight
MF
INPUT
1+
PINOUT
POS
NEG
LF-4215-8F
38 – 1000 Hz
30 – 1200 Hz useable range
134.5 dB SPL calculated peak
8Ω nominal
800 watts
1000 watts
99.5 dB half space, 96.5 dB full space, 35 – 1000 Hz, 1 watt, 1 meter
Two 15" (381 mm) high-efficiency, low-frequency transducers featuring vented 4" (100 mm)
copper voice coils on Kapton
TM
high-power handling, and low thermal and port compression.
Subsonic filter below 30 Hz, >18 dB per octave, maximum recommended crossover frequency is
1000 Hz. QSC DSP configurations are available at www.qscaudio.com. Parameters for alternative
processing hardware are available upon request.
135° horizontal x 50° vertical at 500 Hz
Neutrik Speakon
NL4, LF 1+, 1-, No Connection 2+, 2-
TM
Heavily braced 15 mm tour-grade plywood with 16 M10 load-rated attachment points.
40" x 31.5" x 19" (1016 mm x 800.1 mm x 482.6 mm)
144 lb / 65 kg
134 lb / 61 kg
4
connector supplied by the installer. This connector
TM
No Connection
1-
2+
2-
N/A
N/A
formers. High-excursion/low-distortion design, with extremely
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