Speakers

Part Number	Description / PDF	Quantity
BTD44-12-03H20.1 BeStar Technologies, Inc.	44MM, AUDIO EXCITER	50
FE23100PCW-03 BeStar Technologies, Inc.	SPEAKER, PCB MOUNT	1713
BMS3650L-P2-HT BeStar Technologies, Inc.	ROUND SPEAKER, DIAMETER 36MM, 1.	95
BLS32-12-08H17 BeStar Technologies, Inc.	ROUND SPEAKER 32 MM DIA X 17 MM,	0
BLS1425-11-08H5.2 BeStar Technologies, Inc.	RECTANGULAR SPEAKER, 8 OHM, 1W	100
BPS1319H1.3 BeStar Technologies, Inc.	13X19 MM PIEZO SPEAKER	95
BLS2035-11-08H7.6 BeStar Technologies, Inc.	RECTANGLULAR SPEAKER, 8 OHM, 2W	100
BMS3650L BeStar Technologies, Inc.	ELECTRO MAGNET DYNAMIC SPEAKER	13361
BMS28-12B08H05CW150M BeStar Technologies, Inc.	28MM SPEAKER	61
SMS1313-08H04 BeStar Technologies, Inc.	REFLOW COMPATABLE, TAPE & REEL P	4250
BMS1609F-11C-07H03-DS BeStar Technologies, Inc.	MICRO SPEAKER	0
BMS28-12B-08H05CW152J BeStar Technologies, Inc.	DYNAMIC SPEAKER	0
BMS36-11-50H5.0W80JST BeStar Technologies, Inc.	ELECTRO MAGNET DYNAMIC SPEAKER	580
BMS3650C BeStar Technologies, Inc.	36MM SPEAKER WITH HOUSING	5400
BMS20-12-08H3.2RW020-YL BeStar Technologies, Inc.	20MM SPEAKER	24200
BMS1813F-11C-08H4.5-BBS152 BeStar Technologies, Inc.	18X13 MM SPEAKER	60
BMS40-12B-08H5.0 BeStar Technologies, Inc.	ROUND SPEAKER, DIAMETER 40MM, 1W	0
BDT3745H16.5P BeStar Technologies, Inc.	PCB SNAP FIT, HIGH TEMP, SPEAKER	100
BMS1018-11C-08H05RW025 BeStar Technologies, Inc.	ELECTRO MAGNET DYNAMIC SPEAKER	400
BMS1511F-11C-08H3.5RP BeStar Technologies, Inc.	15 X 11 MM RECTANGLE MINI SPEAKE	100

Speakers

1. Overview

Speakers are electroacoustic transducers that convert electrical audio signals into sound waves. As critical components in audio systems, they reproduce audible frequencies (typically 20Hz-20kHz) with controlled directivity and fidelity. Modern speaker technology integrates materials science, electromagnetism, and digital signal processing to deliver immersive audio experiences across consumer, professional, and industrial applications.

2. Main Types and Functional Classification

Type	Functional Characteristics	Application Examples
Dynamic Speakers	Electromagnetic driver with cone diaphragm, wide frequency response	Home theaters, PA systems
Electrostatic Speakers	Thin membrane with electrostatic field, excellent transient response	High-end audiophile systems
Planar Magnetic	Flat diaphragm with printed circuits, precise sound imaging	Studio monitoring, headphones
Coaxial Speakers	Multiple drivers on single axis, improved phase coherence	Car audio systems
Subwoofers	Specialized for low-frequency reproduction (20-200Hz)	Cinema sound systems

3. Structure and Components

Typical speaker systems consist of:

Transducer Elements: Voice coil, magnet assembly, diaphragm
Cabinet: Made from MDF, aluminum, or composite materials
Crossover Network: Passive/active filters directing frequencies to drivers
Connectors: Binding posts, TRS/XLR inputs, or wireless modules
Damping Materials: Acoustic foam for resonance control

4. Key Technical Specifications

Parameter	Description	Significance
Frequency Response	20Hz-20kHz 3dB	Defines audible range accuracy
Sensitivity	85-100 dB/W/m	Efficiency in sound production
Impedance	4 , 6 , 8 nominal	Matching with amplifiers
Power Handling	20-1000W RMS	Maximum safe operating level
THD	<0.5% at 1W	Audio signal purity

5. Application Areas

Consumer Electronics: Smart speakers (Amazon Echo), soundbars
Professional Audio: Studio monitors (Yamaha HS8), live sound systems
Automotive: Door speakers, active noise cancellation systems
Commercial: Distributed audio in retail spaces, emergency PA systems
Immersive Systems: Dolby Atmos home cinema setups

6. Leading Manufacturers and Products

Manufacturer	Representative Product	Key Innovation
Bose	901 Direct/Reflecting Series	Omni-directional sound field
KEF	LS50 Wireless	Uni-Q concentric driver
Bowers & Wilkins	800 Series Diamond	Matrix internal bracing
Yamaha	HS8 Studio Monitor	Neutral sound reproduction
Harman Kardon	Invoke	Cortana integration

7. Selection Recommendations

Key selection criteria:

Match impedance/power handling with amplifier specifications
Room size vs. speaker sensitivity (e.g., 88dB+ for large spaces)
Crossover frequency alignment in multi-way systems
Material durability for environmental conditions (humidity, temperature)
Budget allocation: 30-50% of total audio system cost recommended

8. Industry Trends Analysis

Emerging developments include:

Integration of AI-powered room calibration (Dirac Live, Audyssey)
Multi-directional transducers for 3D audio in VR/AR applications
Development of micro-speakers using graphene diaphragms
Adoption of wireless mesh networks (WiSA technology) for speaker arrays
Growth of automotive audio systems with headrest-integrated transducers