Omnidirectional sound source Larson Davis BAS001

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Model	BAS001
Manufacturer	Larson Davis (a part of the PCB PIEZOTRONICS)
Power supply	N/A
Weight	24.5 Kg
Size	370 x 370 x 390 mm
Condition	Stocking
Warranty	12 months

Details description
Specifications
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Omnidirectional sound source Larson Davis BAS001 is typically used to saturate a room with a uniform acoustic field.

The available high-efficiency power amplifier has no fan for cooling, allowing measurements in quiet environments, like those in reverberation time applications.

I. Specifications of Omnidirectional noise source Larson Davis BAS001

ROOM AND BUILDING ACOUSTICS

Omnidirectional sound source Larson Davis BAS001 is designed to generate omnidirectional sound fields for making standard compliant measurements including: reverberation time (ISO 3382, ASTM E2235), building acoustics (insertion loss, acoustic absorption area, etc: ISO 140-4 ISO 140-3, ASTM E336, ASTM E90, DIN 55 210).

The BAS001 is typically used to saturate a room with a uniform acoustic field. The available high-efficiency power amplifier has no fan for cooling, allowing measurements in quiet environments, like those in reverberation time applications. The included carrying and shipping case is designed to provide dependable protection for the BAS001 dodecahedral speaker in demanding conditions for many years.

Pairing the Larson Davis Model 831C sound level meter with Reverberation Time option (831C-RA) aids you in multiple architectural acoustics applications ranging from simple experimental reverberation time determination for room performance, to calculating absorption coefficients for material performance. Most of the time, these measurements are dictated by various international standards.

Model 831C measures the decays and then computes the reverberation time according to ISO 3382-2 or ASTM 2235-04 standards. When using the Interrupted Noise method, the Model 831C not only triggers the data acquisition, but its built-in Noise Generator can be used to drive the omni-directional sound source. Recent trends show that the Integrated Impulse method is gaining popularity and Model 831C handles the acquisition of the decays and the subsequent T20 or T30 calculations completely and with ease.

HIGHLIGHTS

Used for ISO 140-4, ISO 140-3, ISO 3382, DIN55210, ASTM E90, E336, E2235, C426 compliant measurements
High sound power level output
Acoustically Isotropic Source
Available lightweight & compact amplifier (BAS002E/U).

TYPICAL APPLICATIONS

Room acoustics: In-situ reverberation time measurements
Building acoustics measurements
Sound insulation
Evaluation of the acoustic indexes for the transmission loss of horizontal or vertical partitions
Sweep response technique.

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Technical specifications of Omnidirectional sound source Larson Davis BAS001

Performance
Sound Power	117 dB re 1 pW (not-equalized) 109 dB re 1 pW (equalized 50-5 kHz)
Sound Pressure Level	95 dB(Z) at 10 m
Operating Range	50 ~ 12.5 kHz
THD	0.1%
Amplitude Linearity	±2 dB from 50 to 5 kHz
Directivity	20° at -3 dB
Compliance
Acoustic	LAB – adjacent room: ISO 140-3, ASTM E90
	FIELD – adjacent room: ISO 140-4, ASTM E336
	Absorption Coefficient: ISO 354, ASTM C426
	Reverberation Time: ISO 3382, ASTM E2235
Electrical, EMC & Safety	2002/95, 2002/96 and 2003/108/EC Directive
	2004/108/EC Directive
	2002/96/EC WEEE (RAEE) Electronic Waste Disposal
	2002/95/EC ROHS
Physical
BAS001
Dimensions (H x W x D)	370 x 370 x 390 mm (14.5 x 14.5 x 15.3 in)
Weight	24.5 kg (54 lb)
Carrying Case (CCS044)
Dimensions (H x W x D)	370 x 370 x 390 mm (14½ x 14½ x 15¼ in)
Weight	7.7 kg (17 lb)
Speak-on Cable
Length	10 m
Weight	0.7 kg (1.7 lb)
Supplied Accessories
Flight Case for Omni-directional Source
Technical Manual & User’s Guide
Signal Cable (speak-on to speak-on), 10 m
Optional Accessories
TRP023	Heavy Duty Loudspeaker Tripod
BAS002E/U	Lightweight Power Amplifier
BAS003	Directional Speaker (Façade)