S B 7 5 0 z F S p e c i f i c a t i o n s

group · S

INPUT PANEL

WHITINSVILLE, MA USA

SB750zF S/N

LIECHTENSTEIN

NL4 MPR

PIN 1--...LF1--

PIN 1+...LF1+

PIN 2--...LF2--

PIN 2+...LF2+

LIECHTENSTEIN

NL4 MPR

SIGNAL DIAGRAM

1-Way, Single-Amp (LF1/LF2)

 

DSP

 

LF

EQ

 

 

HPF

AMP

 

 

 

LPF

 

LF

 

 

1-Way, Dual-Amp (LF1, LF2)

 

DSP

AMP

LF

EQ

 

 

HPF

 

 

LPF

AMP

LF

 

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 SPLof the power averaged SPLwithin this range; measured on the geometric axis. Narrow band dips are excepted.

13.Nominal Beamwidth: Design angle for the -6 dB SPLpoints, referenced to 0 dB SPLas the highest level.

14.Axial Sensitivity: Power averaged SPLover 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 SPLrepresents 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, MA01588 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: RD0233 (B) SB750zF January 2006

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EAW specifications Input Panel, SB750zF S/N, Signal Diagram
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SB750zF specifications

The EAW SB750zF is a notable offering in the realm of professional audio systems, specifically designed for high-performance audio applications. This subwoofer epitomizes power and fidelity through a series of innovative features and technologies that cater to both live sound reinforcement and installation environments.

One of the standout characteristics of the SB750zF is its impressive power handling capability, which can handle up to 750 watts of continuous power. This allows it to deliver deep, resonant bass that can fill large venues, making it ideal for concert halls, clubs, and outdoor events. The subwoofer comes equipped with dual 15-inch low-frequency drivers that are meticulously engineered to provide exceptional efficiency and low distortion, resulting in rich, clear sound reproduction.

The cabinet design of the SB750zF is also noteworthy. Constructed from high-quality, durable plywood and finished with a rugged, weather-resistant coating, it is built to withstand the rigors of touring and the wear-and-tear of live performance. The enclosure utilizes a front-loaded configuration that enhances bass response and provides an extended low-frequency range down to 30 Hz. This feature is particularly valuable for genres of music that rely heavily on low-end frequencies, such as electronic, hip-hop, and rock.

Technologically, the EAW SB750zF is designed to work seamlessly with other elements in an audio system. It features an integrated rigging system that allows for flexible deployment options, whether in-stack or flown configurations. The subwoofer is also equipped with advanced DSP (Digital Signal Processing), which optimizes its performance by managing crossover settings and limiting to prevent distortion at high volumes. This technology ensures that the subwoofer delivers consistent sound quality across various scenarios.

Moreover, the EAW SB750zF is designed to integrate seamlessly with EAW’s entire range of loudspeakers, providing a cohesive sound experience. The compatibility with EAW's software tools enables users to design customized sound systems tailored to specific venue requirements or sound specifications.

In summary, the EAW SB750zF subwoofer stands out for its powerful sound output, sturdy construction, and innovative technologies. Its ability to deliver low-frequency performance, combined with professional-grade features, makes it a go-to solution for audio professionals seeking reliability and excellence in their sound systems. Whether in live performance, installations, or any demanding audio setting, the SB750zF is engineered to meet the needs of audio professionals and music enthusiasts alike.
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