Accessories

Part Number	Description / PDF	Quantity
5100-253441 Knowles	TELECOIL	7
0009-251965 Knowles	PLUG / SOCKET	0
5100-253604 Knowles	TELECOIL	19
TC-32485-000 Knowles	MIC CASE FOR TC-32348-000 PLSTC	73
WB-23404-000 Knowles	EMC	0
2800-253325 Knowles	SWITCHES	0
BF-1999-000 Knowles	ACOUSTIC DAMPER GRAY 330 OHMS	312
009P-253159 Knowles	PROGRAMMING ACCESSORIES	0
009P-253889 Knowles	PROGRAMMING ACCESSORIES	0
TC-32349-000 Knowles	MIC INLINE 1 BUTTON W/RUBBER CBL	0
BF-1861-000 Knowles	ACOUSTIC DAMPER 1500 OHMS	2658
2900-253234 Knowles	SWITCHES	0
5300-253588 Knowles	TELECOIL	0
0009-252527 Knowles	CONN PLUG	0
5100-253440 Knowles	TELECOIL	0
009P-253462 Knowles	CABLE PROGRAMMING	0
0009-253414 Knowles	CONN PLUG	0
009P-253644 Knowles	CABLE PROGRAMMING	0
009P-253226 Knowles	CABLE PROGRAMMING 4POS	0
009P-253804 Knowles	CABLE PROGRAMMING	0

Accessories

1. Overview

Audio accessories encompass a wide range of peripheral devices that enhance audio systems' functionality, quality, and user experience. These components enable signal transmission, sound optimization, noise reduction, and specialized applications across consumer, professional, and industrial audio systems. Modern advancements in wireless technology, digital signal processing, and materials science have significantly expanded their capabilities and integration possibilities.

2. Major Types & Functional Classification

Type	Functional Characteristics	Application Examples
Headphones	Enclosed transducers for private listening with varying impedance and frequency response	Studio monitoring, consumer entertainment
Microphones	Transducers converting acoustic signals to electrical with directional patterns	Voice recording, live performances
Speaker Systems	Multi-driver arrays with crossover networks for sound dispersion	Home theaters, concert halls
DACs	Digital-to-analog conversion with sample rate processing	High-resolution audio playback
Audio Interfaces	Multi-channel I/O with preamps and AD/DA conversion	Music production, podcasting

3. Structural & Technical Composition

Typical audio accessories consist of:

Transducer elements (dynamic, condenser, ribbon)
Magnetic circuit systems with neodymium/ferrous magnets
Vibration control mechanisms (damping materials, suspension systems)
Digital signal processing (DSP) chips for EQ and spatial effects
Connectivity modules (Bluetooth 5.2, USB-C, XLR)
Enclosure materials (aluminum alloys, polymer composites)

4. Key Technical Specifications

Parameter	Description	Importance
Frequency Response	Range of audible frequencies reproduced (20Hz-20kHz standard)	Sound quality accuracy
Impedance	Electrical resistance rating (16 -600 range)	Amplifier compatibility
SPL Sensitivity	Sound pressure level efficiency (85dB-120dB)	Power requirements
THD	Total harmonic distortion percentage (<0.1% ideal)	Fidelity measurement
Signal-to-Noise	Ratio of desired signal to background noise ( 90dB preferred)	Audio clarity

5. Application Domains

Consumer Electronics: Smartphones, VR headsets, smart speakers
Professional Audio: Recording studios, live sound reinforcement
Automotive: In-car entertainment systems, noise cancellation
Healthcare: Hearing aids, diagnostic audio equipment
Commercial AV: Conference systems, digital signage audio

6. Leading Manufacturers & Products

Manufacturer	Product Category	Representative Model
Sony	Headphones	WH-1000XM5
Bose	Speaker Systems	FreeSpace DS 100F
Shure	Microphones	SM7B
Roland	Audio Interfaces	GO:KEYS PRO
Audio-Technica	Studio Equipment	AT2035

7. Selection Recommendations

Key considerations:

Intended use case (casual vs. professional monitoring)
Impedance matching with source equipment
Wireless vs. wired connectivity requirements
Environmental factors (noise isolation needs)
Budget allocation for critical performance features

Example: Selecting studio monitors requires flat frequency response ( 2dB), while gaming headsets prioritize spatial audio processing.

8. Industry Trends Analysis

Current developments include:

Adoption of LE Audio (Low Energy Audio) for extended battery life
Integration of AI-driven noise suppression algorithms
Advancements in MEMS microphone arrays for beamforming
Rise of spatial audio with head tracking for immersive experiences
Material innovations (graphene diaphragms, 3D-printed enclosures)

Market forecasts predict 8.2% CAGR through 2027, driven by remote work applications and high-resolution audio adoption.