Speakers

Part Number	Description / PDF	Quantity
AS01808PR-N50-R PUI Audio, Inc.	SPEAKER 2W 8 OHM 78DB 500HZ	385
RVA-90120-N02 Knowles	SPEAKER	0
AR01032MR-2-R PUI Audio, Inc.	SPEAKER	1885
CMS-15118D-L100 CUI Devices	SPEAKER 8OHM 700MW ENCLOSED 91DB	1332
W 250 - 8 OHM VISATON	HIFI WOOFER	4
FRS 7 S - 8 OHM VISATON	FRS 7 S - 8 OHM	71
UT-P2018 USound GmbH	MEMS SPEAKER IN-EAR ACHELOUS	372
SM500416-1 DB Unlimited	DYNAMIC SPEAKER	474
FX 13 - 4 OHM VISATON	2-WAY COAXIAL SPEAKER	19
BMS2014F-11C-08H03P BeStar Technologies, Inc.	MICRO SPEAKER, SPRING CONTACTS	0
CMS0461KLX CUI Devices	SPEAKER MINI 8OHM 2W ENCLOSED	415
FR 13 - 4 OHM VISATON	FULL-RANGE SPEAKER	40
AS01208MS-SP12-WP-R PUI Audio, Inc.	SPEAKER 12MM 0.3 W 8 OHM 88 DB	153
BF 32 - 4 OHM VISATON	FULL-RANGE DRIVER	90
GC0351N CUI Devices	SPEAKER 8OHM 1W TOP PORT 82DB	1973
CMS0201KLX CUI Devices	SPEAKER 8OHM 2W ENCLOSED 80DB	3
BMS28-12B-08H05CW152M BeStar Technologies, Inc.	DYNAMIC SPEAKER	50
GC0401K CUI Devices	SPEAKER 8OHM 1W TOP PORT 82DB	5941
BF 45 S - 8 OHM VISATON	FULL-RANGE DRIVER	161
K 50 FL - 16 OHM VISATON	K 50 FL - 16 OHM	207

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