Speakers

Part Number	Description / PDF	Quantity
SM180808-5 DB Unlimited	DYNAMIC MICRO SPEAKER	513
GA0381M CUI Devices	SPEAKER 8OHM 200MW TOP PORT 79DB	0
BMS1511F-11C-08H3.5RP BeStar Technologies, Inc.	15 X 11 MM RECTANGLE MINI SPEAKE	100
SM400204-1 DB Unlimited	DYNAMIC SPEAKER	72
T1234 TubeDepot	CELESTION G12H HERITAGE OHMS 8	0
RVA-90020-N28 Knowles	SPEAKER 117.8OHM 94.3DB	0
AS04008CO-2-R PUI Audio, Inc.	SPEAKER 8OHM 1.5W TOP PORT 84DB	1959
RVA-90063-N06 Knowles	SPEAKER 96.3OHM 99.1DB	0
CES-703116-28PM CUI Devices	SPEAKER 70 X 31MM ENCLOSED	24
AS04004CO-2-R PUI Audio, Inc.	SPEAKER 1.5W 4 OHM 550 HZ 84DB	164
SP-1208 Soberton, Inc.	SPEAKER 8OHM 250MW TOP PORT 63DB	3517
SOR4030S11ZN25 Seltech	SPEAKER - 40 MM X 30MM X 11.5MM	100
SP-JEN-P10Q-16 TubeDepot	JENSEN P10Q OHMS 16	0
SMS2020-08H4.5 BeStar Technologies, Inc.	SMT, LOW PROFILE, SPEAKER	6400
F 8 SC - 8 OHM VISATON	MAGNETICALLY SHIELDED FULL-RANGE	27
AST-030C0MR-R PUI Audio, Inc.	SPEAKER 100OHM 150MW TOP PORT	568
MR-23333-000 Knowles	SPEAKER 21OHM TOP PORT 117DB RND	0
GC0351P-1 CUI Devices	SPEAKER 4OHM 1W TOP PORT 82DB	817
PX 13 - 4 OHM VISATON	2-WAY COAXIAL SPEAKER	16
RC-1206S Soberton, Inc.	SPEAKR 32OHM 20MW TOP PORT 103DB	355

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