DC 5V-20V Car Audio Power Noise Filter 8A 20A 50A DC LC-EMI Filter Clean FOR 12V 15V Hi-Fi DAC Decoder Amplifier Purification RF
SPECIFICATIONS
Audio LC EMI Filter: Electromagnetic Interference Filter EMC Car Audio Filter
Brand Name: DykbRadio
Certification: NONE
Choice: yes
DIY Supplies: Electrical
Electronic: No
High-concerned chemical: none
Model Number: Electromagnetic Interference Filter EMC Car Audio Filter
Origin: Mainland China
Output Voltage: DC 5V-20V
Semi-finishedproduct: Yes
Size: power purification
Style: Automotive Amplifier Power Supply Filter
Type: Audio LC EMI Filter
Automotive Amplifier Power Supply Filter EMI High-Frequency Electromagnetic Interference Filter EMC Car Audio Filter
Dedicated LC-EMI Filter for Audio Systems
◆ All components utilize imported capacitors ◆ Operating voltage: 5V-20V
It is well known that automotive environments contain numerous interference sources - engines, spark plugs, electromagnetic switches, and alternators all generate interference signals. Our filter employs a three-stage LC-EMI filtering circuit with high current capacity, effectively eliminating high-frequency noise and electromagnetic interference (Note: Throttle-induced "aircraft noise" is common ground
interference requiring isolated power supply solutions, available in our store).
These interferences significantly impact car audio systems. Common operations like horn activation, door switching, window adjustment, and headlight flashing all generate high-frequency EMI. This is particularly noticeable in Honda series vehicles - any modified low-level output or digital output systems will produce annoying high-frequency noise (buzzing/hissing) through speakers during these operations.
Beyond effective interference suppression, this filter serves a crucial secondary function - power purification. It delivers cleaner audio backgrounds and more transparent sound quality.
Power Specifications (12V system example):
▷ 50A Version
Effective Power: 600W
Peak Power: 750W
For high-power devices: car amplifiers, DSPs with amplification functions
▷ 20A Version
Effective Power: 240W
Peak Power: 300W
For medium-power devices: head units, preamps, decoders
▷ 8A Version
Effective Power: 96W
Peak Power: 120W
Multiple
units can be paralleled for higher power demands. Custom specifications
available. Compatible with all DC-powered audio equipment.








- Standard Shipping: Standard Shipping (12–18 Business Days)
- Express Shipping: Expedited Shipping (5–9 Business Days)
- Free Shipping: Orders over $199 qualify automatically
- Tracking: Full tracking number provided for all orders
- Returns: 30-day hassle-free return window
- Condition: Items must be unused and in original packaging
- Refund: Full refund processed within 3-5 business days
- Factory Direct: ISO/TS 16949 certified manufacturer
- Quality: 100% electrical continuity tested before shipment
- Experience: 15+ years in automotive connector industry
- Support: Professional technical support available
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