Speakers

Image	Part Number	Description / PDF	Quantity	Rfq
	EAS-2P113D Panasonic	SPEAKER 7OHM 200MW TOP PORT 77DB	0
	EAS-30P151C Panasonic	SPEAKER TOP PORT	0
	EAS-8P36S Panasonic	SPEAKER 25OHM 630MW 95DB ROUND	0
	EAS-4P15SA Panasonic	SPEAKER 8OHM 100MW 92DB ROUND	0
	EAS-3P127A Panasonic	SPEAKER 8OHM 500MW 84DB ROUND	0
	EAS-G12D531E2 Panasonic	SPEAKER 8OHM 3W 93.5DB OVAL	0
	EAS-G7D504A2 Panasonic	SPEAKER 16OHM 1.5W TOP PORT 90DB	0
	EAS-3P133B6 Panasonic	SPEAKER 8OHM 3W SIDE PORT 83DB	0
	EAS-6P22S Panasonic	SPEAKER 8OHM 500MW 92DB ROUND	0
	EAS-5P13S Panasonic	SPEAKER 8OHM 160MW TOP PORT 93DB	0
	EAS-8P29SG Panasonic	SPEAKER 8OHM 630MW TOP PORT 93DB	0
	EAS-45P30S Panasonic	SPEAKER 8OHM 100MW 93DB ROUND	0
	EAS-2P104H Panasonic	SPEAKER 8OHM 300MW TOP PORT 81DB	0
	EAS-G9D541A2 Panasonic	SPEAKER 8OHM 3W 88.5DB OVAL	0
	EAS-3P128A Panasonic	SPEAKER 8OHM 300MW TOP PORT 80DB	0
	EAS-G9D550B2 Panasonic	SPEAKER 16OHM 1.5W 87DB OVAL	0
	EAS-4D02C0 Panasonic	SPEAKER 16OHM 1W 73DB OVAL	0
	WM-R57A Panasonic	SPEAKER 70DB RECT FLAT	0
	WM-R30B Panasonic	SPEAKER 70DB SQUARE	0

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