Speakers

Part Number	Description / PDF	Quantity
SM150906-1 DB Unlimited	DYNAMIC MICRO SPEAKER	384
AS01008MR-3-LW100-R PUI Audio, Inc.	SPEAKER .5W 8OHM 81DB 1600HZ	340
SW440804-1 DB Unlimited	WATERPROOF DYNAMIC SPEAKER	192
SP-CEL-G12CEN-16 TubeDepot	CELESTION G12 CENTURY OHMS 16	0
SL 87 XA - 4 OHM VISATON	SL 87 XA - 4 OHM	611
CES-30207-158L120-67 CUI Devices	30 X 20 MM, ENCLOSED, RECTANGULA	158
BF 45 S - 4 OHM VISATON	BF 45 S - 4 OHM	175
SP-2618L Soberton, Inc.	SPEAKER, 88DB SENSITIVITY, 20MM	333
ASX05408-HD-R PUI Audio, Inc.	EXCITER 8 OHM 104DB	333
GC0351P-3 CUI Devices	SPEAKER 4OHM 1W TOP PORT 82DB	7669
BMS28-12B-08H05W135-5035 BeStar Technologies, Inc.	DYNAMIC SPEAKER	0
WSP-417108 Soberton, Inc.	WATER RESISTANT SPEAKER 8 OHM	440
EX 60 S - 8 OHM VISATON	EX 60 S - 8 OHM	109
EC-23097-000 Knowles	SPEAKER 400OHM SIDE PORT 120DB	98
BHS16-11P-08H5.8W30 BeStar Technologies, Inc.	EXITER FOR DYNAMIC HAPTIC	6
CMS-16093-078S CUI Devices	SPEAKER 16 X 9MM ENCLOSED	420
SP-5708 Soberton, Inc.	SPEAKER, 96DB SENSITIVITY, 57MM	105
CMS-15113-076S-67 CUI Devices	SPEAKER 15 X 11MM ENCLOSED	15
CMS-151125-078L100B-67 CUI Devices	15 X 11 MM, RECTANGULAR FRAME, 0	348
PIM350 Pimoroni	SUPPLEMENTARY STEREOPHONIC SPEAK	45

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