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Powerful Factory • Quality Assurance • OEM/ODM Design • High‑Speed Delivery – Xinchangda delivers custom low‑pass filters that eliminate distortion, protect drivers, and enhance bass performance for professional audio systems.
Get Free Quote in 24 hIf any of these scenarios sound familiar, you’re losing ROI and brand credibility.
Discover the SolutionCore Advantages
| Parameter | Typical Value | Unit | Compliance |
|---|---|---|---|
| Cutoff Frequency | 80‑120 | Hz | FCC, CE |
| Inductance | 1.2‑3.5 | mH | RoHS |
| Rated Current | 5‑15 | A | ISO‑9001 |
| Insertion Loss | ≤0.3 | dB | VDE |
| Temperature Range | ‑40 ~ +85 | °C | IP Rating IP54 |
Professional Live‑Sound Systems – A US‑based touring company reduced subwoofer failure by 42 % after switching to our custom low‑pass filter (cutoff 95 Hz, 0.2 dB ripple).
Home‑Theater OEM – Integrated our filter into a 5‑speaker package; end‑user SPL increased 3 dB without additional amplification.
Automotive Audio – Delivered 10 k units for a premium car brand; compliance passed FCC & CARB on first audit.
Request a Free Engineering Sample
high-pass-crossover-subwoofer low-pass-crossover-for-subwoofer high-pass-filter-subwoofer electronic-subwoofer-crossover
“Xinchangda’s low‑pass filter cut our warranty claims by 38 % and delivered on‑time for our 2025 product launch.” – James Lee, Procurement Manager, SoundTech USA
“The OEM design service gave us a unique 95 Hz crossover that no other supplier could match.” – Maria Gonzales, Technical Director, AudioPro Labs
All products are certified: CE, FCC, RoHS, ISO 9001, VDE, CB, GS.
Prototype is ready within 10 days after receiving your schematic and performance specs; full‑scale production starts in 3 weeks.

Yes – we provide Gerber files and BOM for seamless PCB integration, plus DFM review to ensure manufacturability.
All units are FCC Part 15 compliant, CE marked, and RoHS‑restricted; we also supply CB test reports upon request.
Yes – pricing tiers start at 5 % discount for 5 k–10 k units and reach up to 22 % for orders over 30 k.
Free technical consultation for 12 months, on‑site testing assistance (if needed), and a 30‑day money‑back guarantee on first‑time orders.
Limited‑time offer: **Free engineering sample** + **30 % discount on the first 5 k units**. Stock is limited – act now!
Email Quote WhatsApp Now Call +86 131 2825 6415
David Kim, Senior Engineer, AcoustiCo – “The low‑pass crossover delivered a razor‑sharp 98 Hz roll‑off. Our demo units received a 4.8/5 rating from end‑users.”
Linda Patel, Purchasing Lead, SoundWave Inc. – “Xinchangda’s pricing saved us $0.12 per unit, enabling a 15 % margin increase without compromising quality.”
Tomás Rodríguez, Operations Manager, AudioMundo – “Fast 10‑day prototype helped us meet a tight trade‑show deadline. The filter passed FCC testing on first try.”
Alex Chen, Ph.D. – Senior Audio Magnetics Engineer with 18 years of R&D experience in magnetic component design for professional audio, automotive, and medical markets. Published author of “Advanced Crossover Networks” (2023) and holder of multiple patents on low‑loss inductors. Currently leads Xinchangda’s Global OEM/ODM Program.
Contact: grace01@xinchangdadz.com | Tel: +86 131 2825 6415