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For Purchasing Managers & Technical Directors who demand consistent sound quality while cutting costs.
Get Free Quote in 24 hMost US‑based OEMs face three critical pain points:
According to a 2025 industry survey, 57 % of purchasing managers cited “unreliable audio performance” as the top reason for switching suppliers.
| Parameter | Value | Unit |
|---|---|---|
| Crossover Frequency | 150 | Hz |
| Inductor Tolerance | ±0.1 % | – |
| Capacitor Voltage Rating | 200 | V |
| Power Handling | 300 | W |
| Operating Temperature | ‑40 ~ +85 | °C |
Professional Home‑Theater Integrators – Reduced cabinet size by 20 % while maintaining SPL, cutting material cost by $12 k per 5,000‑unit run.
Automotive Audio OEMs – Integrated our high‑pass filter into a 12‑speaker system, achieving a 5 dB improvement in bass clarity verified by third‑party labs.
high-pass-crossover-subwoofer crossover-3-way-subwoofer crossover-in-subwoofer crossover-amp-subwoofer
It allows frequencies above the set crossover point to pass to the subwoofer, preventing low‑frequency overload and delivering cleaner bass. This improves overall system efficiency and protects drivers.
Yes. Our OEM/ODM service lets you select any frequency between 80 Hz and 300 Hz, with tolerance tighter than ±0.5 %.
We accept orders as low as 500 units for trial runs; larger volumes receive tiered discounts.

Standard air freight: 5‑7 business days after production. Express courier options are also available.
Yes. Our US‑based engineering team offers 24/7 email support, remote diagnostics, and a 12‑month warranty on all components.
Limited‑time offer: **Free engineering sample** for the first 10 US orders. No risk – 30‑day money‑back guarantee.
WhatsApp Us Now Email QuoteJohn M., Purchasing Manager – SoundWave Pro
“Xinchangda delivered the high‑pass filter subwoofer 2 weeks early. Our launch cost dropped by 28 % and the sound quality exceeded our specs.”
Laura S., Technical Director – AutoAcoustics Ltd.
“The OEM design flexibility saved us 15 % on PCB layout. After‑sales support was responsive within hours.”
Mike T., Operations Manager – EchoTech Europe
“Consistent 0.1 % inductance tolerance gave us a stable SPL across all units – a real game‑changer for our brand.”
Trusted By Global Brands
Our partners include (logos omitted for brevity):
Certificates & Compliance
CE, FCC, RoHS, ISO 9001, UL, VDE, CB, GS, SAA – all available for audit.