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

group · J

INPUT PANEL

SB150zR

S/N

WHITINSVILLE, MA USA

LIECHTENSTEINLIECHTENSTEIN

PIN 1--...--

PIN 1+...+

NL4 MPR

NL4 MPR

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.

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: RD0225 (A) SB150zR April 2005

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EAW SB150zR specifications Input Panel, Signal Diagram

SB150zR specifications

The EAW SB150zR is a high-performance subwoofer designed for professional audio applications, delivering exceptional sound quality and power in a compact form factor. Engineered for versatility, this model excels in both live sound environments and installations, making it a popular choice among audio professionals.

One of the standout features of the EAW SB150zR is its robust construction. The subwoofer is housed in a durable, plywood enclosure that offers both strength and low resonance. This design minimizes unwanted vibrations, ensuring a cleaner bass response. Additionally, the exterior is finished with a rugged coating that withstands the rigors of transport and frequent use.

At the heart of the SB150zR is a 15-inch low-frequency driver, optimized for deep bass reproduction. This driver is designed to handle significant power levels, allowing the subwoofer to produce low-end frequencies with authority. The SB150zR can deliver frequencies down to 30 Hz, making it suitable for a variety of music genres, from classical to modern electronic dance music.

The subwoofer is equipped with advanced technologies to enhance its performance. A built-in amplifier provides efficient power management, ensuring that the driver operates at peak performance without distortion. The system is also designed for easy integration with other EAW products, allowing for scalable sound reinforcement setups.

The SB150zR features multiple input and output options, including speakON and binding posts, making it flexible for various configurations. Whether used in a standalone setup or as part of a larger PA system, the EAW SB150zR offers seamless connectivity and a straightforward setup process.

Another key characteristic of the SB150zR is its portability. Despite its powerful capabilities, the subwoofer is designed to be easily transportable, with side handles that facilitate movement. It can be stacked with other speakers or positioned in various locations, thanks to its compact dimensions.

Overall, the EAW SB150zR is a well-rounded subwoofer that combines durability, advanced technology, and exceptional sound quality. Its ability to deliver deep, powerful bass in a variety of settings makes it an ideal choice for sound engineers and event coordinators alike. With its thoughtful engineering and reliable performance, the SB150zR stands out in the crowded market of professional audio equipment.