Speakers

Part Number	Description / PDF	Quantity
AS03608MR-SC-R PUI Audio, Inc.	SPEAKER 8OHM 1W TOP PORT 91DB	316
SC240908-1 DB Unlimited	DYNAMIC SPEAKER	556
AS07104PO-R PUI Audio, Inc.	SPEAKER 4OHM 3W TOP PORT 86DB	2080
SC400608-1 DB Unlimited	HIGH TEMP DYNAMIC SPEAKER	1423
ASX03604-R PUI Audio, Inc.	EXCITER 4OHM 3W 88DB ROUND	2991
TC7FD04-04 Vifa (Peerless by Tymphany)	SPEAKER 4OHM 20W TOP PORT 88DB	0
W 130 S - 8 OHM VISATON	HIFI LOW-MIDRANGE DRIVER	53
PSR12N08AK Mallory Sonalert Products	SPEAKER 8OHM 500MW TOP PORT 90DB	111
AS04004PO-2-WR-R PUI Audio, Inc.	SPEAKER 4OHM 3W TOP PORT 82DB	4390
FX 16 WP - 4 OHM VISATON	SALTWATER RESISTANT 2-WAY COAXIA	0
CES-26138-16L030 CUI Devices	SPEAKER 26 X 13MM ENCLOSED	582
AS01708MR-2-LW100-R PUI Audio, Inc.	SPEAKER .5 W 8 OHM 90 DBA 850 HZ	98
28A10508BIP0428 RDI Inc.	28 MM SPEAKER	750
PB-1715PK Mallory Sonalert Products	SPEAKER 8OHM 200MW TOP PORT 87DB	497
SP-JEN-MOD15-200-8 TubeDepot	JENSEN MOD 15200 OHMS 8	0
SP-3020S Soberton, Inc.	SPEAKER 8OHM 100DB 1.0W/1.5W 800	1121
CDS-25148-L100 CUI Devices	SPEAKER 8OHM 1.5W TOP PORT 94DB	3386
SP-CEL-G12-65-15 TubeDepot	CELESTION G1265 HERITAGE OHMS 15	0
CMS-15113-076SP CUI Devices	SPEAKER 15 X 11 MM ENCLOSED	155
CDM-20008 CUI Devices	SPEAKER 8OHM 300MW TOP PORT 92DB	20969

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