LF-4215 Specifications (subject to change without notice)

Frequency Range:

38 - 1300 Hertz (±3 dB)

30 - 1400 Hertz useable range (-10 dB)

Nominal Coverage:

100° horizontal X 55° vertical at 600 Hertz

Maximum Output:

134.5 dB SPL calculated peak, 1 meter, half space, at rated rms power with 6 dB crest factor pink noise input, 25 - 250 Hertz.

128.5dBA 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

3.4ohms minimum , 150 Hertz 25 ohms maximum, 22 Hertz

Maximum Input Power: 800 watts rms (100 hours of 6 dB crest factor pink noise, 30 - 500 Hertz)

1000 watts rms (2 hours of 6 dB crest factor pink noise, 30 - 500 Hertz, AES method) recommended amplifier power capability- 1600 watts rms maximum into 4 ohms (per LF-4218)

Sensitivity:

99.5 dB half space, 93.5 dB 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 stranded wire. Four terminals: (two INPUT and two PARALLEL

 

OUT). Drivers are internally wired in parallel. For independent transducer connection, remove blue jumper wire and yel-

 

low jumper wire on internal-side of terminal cup and mark enclosure accordingly.

Transducers:

Two 15” (381mm) high efficiency low frequency transducers featuring vented 4” (100mm) copper voice coils on Kap-

 

ton® formers. High excursion/low distortion design, with extremely high power handling, and low thermal and port

 

compression.

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 35” high X 20” deep (762 mm X 889 mm X 508 mm)

Weight:

195 lbs. shipping, 172 lbs. net (88/78 kg.)

SPL and Impedance vs. Frequency

 

SPL 2pi

 

SPL (dB)

SPL 4pi

Impedance (ohms)

 

 

Impedance

 

 

Frequency (Hertz)

 

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Polaroid LF-4215 user manual Sensitivity, Connectors, Transducers, Enclosure, Size, Weight, Impedance Frequency Hertz
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LF-4215 specifications

The Polaroid LF-4215 is a remarkable addition to the world of instant photography, designed to bring nostalgia and modern appeal together. Aimed at both amateur photographers and seasoned professionals, this camera offers a unique blend of features that makes it stand out in today’s fast-paced digital landscape.

At the heart of the LF-4215 is its robust imaging technology, which combines a high-resolution lens with a powerful image sensor. This allows for vibrant, detailed photos with the characteristic Polaroid aesthetic. The camera uses a unique film format that delivers rich colors and striking contrasts, reminiscent of the iconic Polaroid prints from the past. The LF-4215 employs a special blend of analog and digital technologies, allowing photographers to enjoy the charm of instant film without sacrificing image quality.

One of the standout features of the LF-4215 is its easy-to-use interface. With a simple control layout, users can swiftly navigate settings such as exposure, ISO, and focus. The camera also includes several pre-set shooting modes tailored for different environments, whether you’re capturing a sunny outdoor scene or a low-light setting. This flexibility invites creativity, enabling photographers to experiment with various styles and techniques.

Moreover, the LF-4215 comes equipped with a built-in flash, which ensures that your images are well-lit in any situation. The camera's viewfinder offers a bright and clear framing experience, making it easier for users to compose their shots accurately. Additionally, the LF-4215 supports multiple exposure settings, allowing for unique artistic expressions and double exposures.

Another significant characteristic of the LF-4215 includes its compact and lightweight design, making it an ideal companion for on-the-go photography. Coupled with a durable exterior, this camera is built to withstand the rigors of outdoor adventures, ensuring that users can capture memorable moments without worry.

In conclusion, the Polaroid LF-4215 is a beacon of instant photography, merging classic charm with modern technology. Its impressive features, user-friendly design, and premium imaging capabilities make it a fantastic choice for anyone looking to experience the magic of instant captures. Whether you’re documenting life’s little moments or indulging in creative photography, the LF-4215 is sure to deliver satisfying results that you'll cherish for years to come.
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