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LF-4115 Specifications 

(subject to change without notice)

Frequency Range:

33 - 1200 Hertz (-6dB) 
29 - 3000 Hertz useable range (-10dB)

Nominal Coverage:

100° horizontal X 100° vertical at 1000 Hertz

Maximum Output:

127.0dB SPL calculated peak, 1 meter, half space, at rated rms power with 6 dB crest factor pink noise input, 35 - 1000 Hertz.
121.0dBA SPL calculated maximum continuous, 1 meter. The dBA scale is typically used to identify sound sources 
which can cause permanent hearing loss.

Impedance: 

4 ohms nominal
4.3 ohms minimum, 160 Hertz
40 ohms maximum, 22 Hertz

Maximum Input Power:

400 watts rms (8 hours of 6dB crest factor pink noise, 40 - 400 Hertz)
600 watts rms (2 hours of 6dB crest factor pink noise, 40 - 400 Hertz)
recommended amplifier power capability- 1100 watts rms maximum into 4 ohms (per LF-4115)

Sensitivity: 

93.5dB half space, 92.0dB full space, 35 - 1000 Hertz, 1 watt, 1 meter

Recommended Processing:

Subsonic filter below 30 Hertz, >18 dB per octave, maximum recommended crossover frequency is 1000 Hertz. QSC 
DSP configurations are available at www.qscaudio.com. Parameters for alternative processing hardware are available 
upon request.

Connectors:

Barrier strip screw terminals accept up to #10 AWG (5.3mm

2

) stranded wire. Four terminals: (two 

INPUT

 and two par-

allel

 OUTPUT

).

Transducers:

15” (381mm) high efficiency low frequency transducer featuring vented 4” (100mm) copper voice coil on Kapton® 
formers.  High excursion/low distortion design, with extremely high power handling, and low thermal and port com-
pression.

Enclosure:

Quasi B4 alignment, ported enclosure with fully flared ports, low turbulence symmetrical port design, tuned to 36 
Hertz, constructed of medium density fibreboard and heavily braced. Features vandal resistant woofer mounting bolts.

Size:

30” wide X 18” high X 20” deep (762mm X 457mm X 508mm)

Weight:

96 lbs. shipping, 83 lbs. net (44/38 kg.)

SPL and Impedance vs. Frequency

Frequency (Hertz)

SP

L (dB

)

Im

pe

danc

e (o

hms)

SPL 2pi

Impedance

SPL 4pi

Содержание LF-4115

Страница 1: ...ure provide easy mounting of QSC s HF 75 high fre quency system or MH 1063 mid high system Enclosure is not designed to be suspended flown or rigged Do not sus pend fly or rig this enclosure This prod...

Страница 2: ...ven installation Observe the polarity markings and keep polarity consistent throughout the system for best perfor mance Parallel Connection of Second LF 4115 The terminals marked OUTPUT may be used to...

Страница 3: ...eter Recommended Processing Subsonic filter below 30 Hertz 18 dB per octave maximum recommended crossover frequency is 1000 Hertz QSC DSP configurations are available at www qscaudio com Parameters fo...

Страница 4: ...fic legal rights This limited warranty is freely transferable during the term of the warranty period Customer may have additional rights which vary from state to state In the event that this product w...

Страница 5: ...tema de alta frecuencia HF 75 o del sistema de frecuencia media alta MH 1063 ambos de QSC La caja no esta dise ada para montarse suspendida en voladizo ni sobre arneses No suspenda esta caja no la mon...

Страница 6: ...mar cas de polaridad y mantenga la polaridad uniforme en todo el sistema para obtener el mejor rendimiento Conexi n en paralelo de un segundo LF 4115 Los terminales marcados SALIDA se pueden usar para...

Страница 7: ...amiento Filtro subs nico menor de 30 Hertzios 18 dB por octava la frecuencia m xima de cruce recomendada es de recomendado 1000 Hertzios Las configuraciones DSP de QSC est n disponibles en www qscaudi...

Страница 8: ...espec ficos Esta garant a limitada es libremente transferible durante el per odo de la misma El cliente podr a gozar de derechos adicionales que podr an variar de un estado a otro En caso de que este...

Страница 9: ...de hauteur moyenne MH 1063 de QSC L enceinte n a pas t con ue pour tre suspendue balanc e ou mont e La suspension le balancement ou le montage de l enceinte sont interdits Ce produit est capable de p...

Страница 10: ...ur toute installation Observer les rep res de polarit et maintenir une polarit constante travers le syst me pour une meilleure performance Branchement en parall le d un second LF 4115 Les bornes marqu...

Страница 11: ...rieur 30 Hz 18 dB par octave fr quence de filtre passif maximale recommand e 1 000 Hz Les configurations des processeurs de champs sonores num riques QSC sont disponibles sur le site www qscaudio com...

Страница 12: ...es et ou indirects Cette garantie vous accorde des droits sp cifiques Cette garantie limit e est librement cessible durant sa p riode de validit Le client pourra b n ficier d autres droits variables d...

Страница 13: ...rei T Muttern oben im Geh use erleichtert Das Geh use ist nicht f r H nge Flug oder Abspannanwendungen vorgesehen Dieses Geh use darf weder aufgeh ngt noch in Flug oder Abspannanwendungen eingesetzt w...

Страница 14: ...Polarit tsmarkierungen beachten und zur Erzielung optimaler Leistung auf eine gleich bleibende Polarit t in der gesamten Anlage achten Paralleler Anschluss des zweiten LF 4115 Ein weiterer LF 4115 kan...

Страница 15: ...ne Verarbeitung Untertonfrequenzfilter unter 30 Hz 18 dB je Oktave empfohlene maximale Crossover Frequenz 1000 Hz QSC DSP Konfigurationen k nnen im Internet unter www qscaudio com eingesehen werden Pa...

Страница 16: ...macht wurde QSC ist f r keine Neben und oder Folgesch den haftbar Diese Garantie gew hrt Ihnen bestimmte Rechte Diese beschr nkte Garantie ist w hrend der Garantiezeit frei bertragbar Manche Kunden k...

Страница 17: ...100mm 120 oz 3 4kg SMG 3 T QSC HF 75 MH 1063 QSC Audio Product QSC Audio Product TD 000171 00 C 2004 QSC Audio Products Inc QSC QSC Audio Products Inc 1675 MacArthur Blvd Costa Mesa CA 92626 714 754...

Страница 18: ...LF 4115 10 AWG 5 3mm2 LF 4115 OUTPUT LF 4115 4 2...

Страница 19: ...dBA 4 4 3 160 40 22 400 rms 6 dB 8 40 400 600 rms 6 dB 2 40 400 1100 rms 4 LF 4115 93 5dB 92 0dB 35 1000 1 1 30 18 dB 1000 www qscaudio com QSC DSP 10 AWG 5 3mm2 INPUT OUTPUT 15 381 4 100 Kapton B4 36...

Страница 20: ...oducts Inc 1675 MacArthur Boulevard Costa Mesa California 92626 1468 USA 714 754 6175 714 957 7100 800 854 4079 714 957 7150 800 772 2834 714 754 6174 714 754 6173 www qscaudio com E mail info qscaudi...

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