Speakers

Part Number	Description / PDF	Quantity
GF0771 CUI Devices	SPEAKER 8OHM 1W TOP PORT 92DB	943
CI-22960-000 Knowles	SPEAKER 400OHM SIDE PORT 127DB	124
CMS-3150-26SP CUI Devices	31 MM, ROUND, 2 W, 6 OHM, NEODYM	192
WSP-4023Y Soberton, Inc.	4 OHM, 4W, 79DB, 230HZ, 40.3MM D	499
PLS-P830983 Vifa (Peerless by Tymphany)	SPEAKER 4OHM 25W TOP PORT 82DB	896
CLS0571M-L152 CUI Devices	SPEAKER 8OHMS .2W 57MM 6" LEADS	1169
CR1511L030UN8-2 Seltech	MICROSPEAKER - 11 X 15 X 3.5MM -	100
SOC50C07Y50 Seltech	SPEAKER - 50MM DIAMETER WITH WIR	72
EF-26329-000 Knowles	SPEAKER 150OHM SIDE PORT 126DB	0
DFK-30059-000 Knowles	SPEAKER 286OHM SIDE PORT 99.7DB	0
ED-26821-000 Knowles	SPEAKER 10.2OHM SIDE PORT 107DB	0
CMS-40288N CUI Devices	SPEAKER 8OHM 2W ENCLOSED 85DB	1271
CDS-15158-SMT-TR CUI Devices	SPEAKER 8OHM 300MW TOP PORT 87DB	1214
AS01516MR-2-R PUI Audio, Inc.	SPEAKER .5 W 16 OHM 86 DB 850 HZ	76
SR80X14VNS International Components Corp.	MINIATURE OVAL SPEAKER 8 OHM	91
SC400408-1 DB Unlimited	DYNAMIC SPEAKER	546
AS04008PO-2-R PUI Audio, Inc.	SPEAKER 8OHM 1W TOP PORT 84DB	1250
APR050SO-R PUI Audio, Inc.	PASSIVE RADIATOR 78HZ	1042
AST-01508MR-R PUI Audio, Inc.	SPEAKER 8OHM 300MW TOP PORT 87DB	2173
SP-1511S-1 Soberton, Inc.	SPEAKER 8OHM 700MW TOP PORT 83DB	5215

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