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Eliminate low‑power, unreliable crossovers and give your high‑end audio systems the clarity they deserve. Designed for Purchasing Managers, Technical Directors, and Operations Leaders in the USA.
1. High price, low output – Most suppliers charge a premium for 150‑200 W units that can’t sustain 300 W peaks, forcing you to buy extra amplifiers.
2. Inconsistent quality – Variations in inductance and capacitor tolerance cause tonal imbalance, leading to costly returns and warranty claims.
3. Long lead times – Overseas factories often need 45‑60 days for custom orders, delaying product launches.
4. Limited customization – Off‑the‑shelf designs rarely match your enclosure dimensions or impedance curves.
5. Regulatory uncertainty – Missing CE, FCC, or RoHS certifications can stall import clearance.
| Parameter | Specification |
|---|---|
| Power Rating | 300 W (8 Ω), 250 W (4 Ω) |
| Frequency Range | 20 Hz – 20 kHz |
| Crossover Slopes | 12 dB/Oct, 24 dB/Oct, 48 dB/Oct |
| Components | Molded iron core inductors, polypropylene film caps, silver‑plated terminals |
| Operating Temp. | ‑20 °C ~ +85 °C |
| Certifications | CE, FCC, RoHS, ISO 9001, ISO 14001 |
hifi-speaker-crossover hifi-power-transformer crossover-in-subwoofer crossover-3-way-subwoofer
• High‑end home theater – A boutique integrator in California replaced 150 W crossovers with our 300 W units, achieving a 27% reduction in total system cost and a 15 dB improvement in SPL uniformity.
• Professional DJ rigs – A touring DJ company ordered 2,000 units, cutting shipment time from 45 days to 12 days and reporting zero failure in a 12‑month field test.
• Automotive infotainment – An OEM integrated our custom‑tuned crossovers into 10,000 vehicles, meeting FMVSS‑108 acoustic standards on first audit.
Q1: Can you provide a 300W HiFi crossover OEM for a 4‑Ω system?
A: Yes. Our standard 300 W model supports 4 Ω with 250 W continuous power and meets FCC/CE standards.
Q2: What is the minimum order quantity (MOQ) for custom designs?
A: MOQ is 500 pieces for a fully custom ODM project; for standard catalog items, we accept 100 pieces.
Q3: How long does a prototype take?
A: 7 business days from approved schematic to first‑run sample, with free engineering support.

Q4: What logistics options are available for US customers?
A: We ship via DHL, UPS, or FedEx air freight (door‑to‑door) with DDP incoterms; sea freight is also offered for bulk orders.
Q5: Do you offer a money‑back guarantee on defective units?
A: Yes. Defective items are replaced at no cost within 12 months of receipt, backed by our ISO 9001 quality system.
Q6: Are the crossovers RoHS‑compliant for European imports?
A: All our products are RoHS‑compliant and carry the necessary CE marking for EU markets.
Limited Offer: First‑time buyers receive a FREE 2‑unit sample kit and a 10% discount on orders over 5,000 pieces. Stock is limited – act now!
Or contact us directly:
Phone: +86 131 2825 6415 / +86 0752 338 8753
Email: grace01@xinchangdadz.com
Mike D., Purchasing Manager, AudioTech USA
“The 300 W crossover arrived in 10 days, fully tested, and integrated flawlessly. We saved 28% on total system cost.”
Susan K., Operations Lead, GreenWave Studios
“Excellent OEM service – the custom crossover curve matched our design specs perfectly. No more re‑work.”
David L., Technical Director, PowerPulse Labs
“Reliability is outstanding. After a year of field testing in 500 units, we have zero failures.”
Trusted By Industry Leaders
Global Brands: Audiophile Pro, SoundWave Labs, Elite Motors, GreenTech Audio
Certificates & Compliance: CE, FCC, RoHS, ISO 9001, ISO 14001, VDE, GS, CB.