S B 1 5 0 z P S p e c i f i c a t i o n s

group · I

INPUT PANEL

 

SB150zP

WHITINSVILLE, MA USA

S/N

 

LOOP THRU

SIGNAL DIAGRAM

1-Way, Single-Amp (LF)

 

DSP

 

 

EQ

AMP

LF

HPF

 

 

LPF

 

 

LEGEND

 

 

DSP: User-supplied Digital Signal Processor.

HPF: High Pass Filter for crossover or specified High Pass Filter.

LPF: Low Pass Filter for crossover.

LF/MF/HF: Low Frequency / Mid Frequency / High Frequency.

AMP: User-supplied Power Amplifier.

XVR: Passive LPFs, HPFs, and EQ integral to the loudspeaker.

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NOTES

TABULAR DATA

1.Measurement/Data Processing Systems: Primary - FChart: proprietary EAW software; Secondary - Brüel & Kjær 2012.

2.Microphone Systems: Earthworks M30; Brüel & Kjær 4133

3.Measurements: Dual channel FFT; length: 32 768 samples; sample rate: 48 kHz; logarithmic sine wave sweep.

4.Measurement System Qualification (includes all uncertainties): SPL: accuracy +/-0.2 dB @ 1 kHz, precision +/-0.5 dB 20 Hz to 20 kHz, resolution 0.05 dB; Frequency: accuracy +/-1 %,

precision +/-0.1 Hz, resolution the larger of 1.5 Hz or 1/48 octave; Time: accuracy +/-10.4 µs, precision +/-0.5 µs, resolution 10.4 µs; Angular: accuracy +/-1°, precision +/-0.5°, resolution 0.5°.

5.Environment: Measurements time-widowed and processed to eliminate room effects, approximating an anechoic environment. Data processed as anechoic or fractional space, as noted.

6.Measurement Distance: 7.46 m. Acoustic responses represent complex summation of the subsystems at 20 m. SPLis referenced to other distances using the Inverse Square Law.

7.Volts: Measured rms value of the test signal.

8.Watts: Per audio industry practice, “loudspeaker watts” are calculated as voltage squared divided by rated nominal impedance. Thus, these are not True Watt units of energy as defined by International Standard.

9.SPL: (Sound Pressure Level) Equivalent to the average level of a signal referenced to 0 dB SPL = 20 microPascals.

10.Subsystem: This lists the transducer(s) and their acoustic loading for each passband. Sub = Subwoofer, LF = Low Frequency, MF = Mid Frequency, HF = High Frequency.

11.Operating Mode: User selectable configurations. Between system elements, a comma (,) = separate amplifier channels; a slash (/) = single amplifier channel. DSP = Digital Signal Processor.

IMPORTANT: To achieve the specified performance, the listed external signal processing must be used with EAW-provided settings.

12.Operating Range: Range where the processed Frequency Response stays within -10 dB SPL of the power averaged SPL within this range; measured on the geometric axis. Narrow band dips are excepted.

13.Nominal Beamwidth: Design angle for the -6 dB SPL points, referenced to 0 dB SPL as the highest level.

14.Axial Sensitivity: Power averaged SPL over the Operating Range with an input voltage that would produce 1 W at the nominal impedance; measured with no external processing on the geometric axis, referenced to 1 m.

15.Nominal Impedance: Selected 4, 8, or 16 ohm resistance such that the minimum impedance point is no more than 20% below this resistance over the Operating Range.

16.High Pass Filter: This helps protect the loudspeaker from excessive input signal levels at frequencies below the Operating Range.

17.Accelerated Life Test: System: Maximum test input voltage applied with an EIA-426B defined spectrum; measured with specified signal processing; Transducer: AES2-1984 R 1997.

18.Calculated Axial Output Limit: Highest average and peak SPLs possible during the Accelerated Life Test. The Peak SPL represents the 2:1 (6 dB) crest factor of the Life Test signal.

GRAPHIC DATA

1.Resolution: To remove insignificant fine details, 1/12 octave cepstral smoothing was applied to acoustic frequency responses and 1/3 octave cepstral smoothing was applied to the beamwidth and impedance data. Other graphs are plotted using raw data.

2.Frequency Responses: Variation in acoustic output level with frequency for a constant input signal. Processed: normalized to 0 dB SPL. Unprocessed inputs: 2 V (4 ohm nominal impedance),

2.83V (8 ohm nominal impedance), or 4 V (16 ohm nominal impedance) referenced to a distance of 1 m.

3.Processor Response: The variation in output level with frequency for a constant input signal of 0.775 V = 0 dB reference.

4.Impedance: Variation in impedance magnitude, in ohms, with frequency without regard to voltage/current phase. This means the impedance values may not

be used to calculate True Watts (see 8 above).

Eastern Acoustic Works One Main Street Whitinsville, MA 01588 tel 800 992 5013 / 508 234 6158 fax 508 234 8251 www.eaw.com

EAW products are continually improved. All specifications are therefore subject to change without notice.

Part Number: RD0308 (A) SB150zP April 2005

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EAW SB150zP specifications Input Panel, Signal Diagram
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SB150zP specifications

The EAW SB150zP is a cutting-edge subwoofer designed for professional audio applications, marrying innovative technology with robust construction to deliver exceptional sound performance. This powerful subwoofer is renowned for its ability to produce deep, impactful bass with clarity and precision, making it ideal for live sound reinforcement, installations, and mobile sound applications.

One of the standout features of the SB150zP is its high-efficiency 15-inch low-frequency driver. This driver is engineered to provide maximum output while minimizing distortion, allowing for a fuller sound at higher volumes. The design of the driver, coupled with an advanced enclosure, ensures that bass frequencies are delivered with punch and authority, catering to genres that demand extensive low-end support, such as electronic, rock, and hip-hop.

The enclosure of the SB150zP is meticulously constructed from durable plywood, providing both strength and resonance control. Its ported design enhances low-frequency extension while maintaining a compact footprint. This allows the subwoofer to fit seamlessly into various environments, whether on stage or in a permanent installation. The rugged finish withstands the rigors of touring and repeated transport, ensuring longevity and reliability in diverse settings.

In terms of connectivity, the SB150zP is equipped with both XLR and ΒΌ-inch inputs, making it compatible with a wide range of audio equipment. This versatility means it can easily integrate into any sound system, supporting both professional audio engineers and casual users. Additionally, the subwoofer features an adjustable crossover frequency, allowing users to tailor the sound to match different speakers and acoustic environments.

The SB150zP also incorporates advanced thermal management technology, which prevents overheating during extended use. This ensures consistent performance, even at high output levels, and extends the life of the components.

In summary, the EAW SB150zP subwoofer is an impressive combination of performance, durability, and versatility. Its robust design, powerful driver, and user-friendly features make it a valuable asset for any sound system, offering an unparalleled low-frequency response that meets the demands of various audio applications. Whether for touring professionals or fixed installations, the SB150zP is poised to deliver exceptional sound quality and reliability.
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