Speakers

Part Number	Description / PDF	Quantity
AS02508CO-2-R PUI Audio, Inc.	SPEAKER 8OHM 500MW TOP PORT 82DB	1507
BF 32 S - 8 OHM VISATON	BF 32 S - 8 OHM	300
TC8FD00-04 Vifa (Peerless by Tymphany)	SPEAKER 4OHM 25W TOP PORT 82.9DB	788
1669 Adafruit	SPEAKER 4OHM TOP PORT OVAL RECT	692
SMS-1508-2-R PUI Audio, Inc.	SPEAKER 8OHM 300MW TOP PORT 87DB	406
SP-1504-17 Soberton, Inc.	SPEAKER, 93DB SENSITIVITY, 15MM	432
SP-1504-16 Soberton, Inc.	SPEAKER 8 OHM93 DB 0.5W/0.8W 100	388
GC0281M CUI Devices	SPEAKER 8OHM .2W 28MM RND	1973
RVA-90080-N15 Knowles	SPEAKER 46OHM 104.7DB	0
CO2014L038BN8GMDAW Seltech	SPEAKER 8OHM 500MW TOP PORT	90
FRWS 5 - 8 OHM VISATON	FRWS 5 - 8 OHM	1131
AS01508AO-WP-R PUI Audio, Inc.	SPEAKER 8OHM 700MW TOP PORT 94DB	729
BMS3650C BeStar Technologies, Inc.	36MM SPEAKER WITH HOUSING	5400
AS01308MR-2-R PUI Audio, Inc.	SPEAKER 8OHM 200MW TOP PORT 85DB	1288
SP-CEL-G12-80-8 TubeDepot	CELESTION G1280 CLASSIC LD OHM 8	0
SP-JEN-MOD15-200-16 TubeDepot	JENSEN MOD 15200 OHMS 16	0
SC600204-1 DB Unlimited	DYNAMIC SPEAKER	332
APS3008S-R PUI Audio, Inc.	SPEAKER TOP PORT 80DB RECT	1118
CES-2704-088L050 CUI Devices	SPEAKER 27MM ROUND ENCLOSED	102
CMS-15113-076S CUI Devices	SPEAKER 15 X 11MM ENCLOSED	951

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