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Ferrite Shielded Crossover Coil for Woofer
US$0.58
1,000-4,999 Pieces
US$0.55
5,000+ Pieces
Sample price:US$2.00/piece.Request sample
Product profile
Customization
AvailableType
Choke InductorStructure
Mutual InductorModel NO.
AL-C89Working Frequency
Low FrequencyStructure of Winding
Single CoilNature of Operation
Choke CoilStructure of Magnetizer
Ferrite CoilRange of Application
ChokePackaging Form
Power CoilsBrand
ALInductor Value
Variable InductorInductor Type
Inductor LeadedApplication
Electrical componentsSupplier Type
AL factoryMounting Type
Through HoleDescription
Sq Ferrite Core Inductor Flat Wire CoilTransport Package
cartonSpecification
1000*Trademark
ALOrigin
ChinaHS Code
85045000Production Capacity
10000/yearKey features
Nano-Grade Copper Wire: Crafted with nano-grade superconducting copper wire to minimize resistance and enhance signal transmission efficiency.
Dynamic Response Boost: Adaptive frequency-band processing boosts transient response by 30%, capturing subtle audio details with precision.
Extended Lifespan: High-temperature-resistant ceramic insulation ensures oxidation and aging resistance, with a lifespan exceeding 10,000+ hours.
Broad Compatibility: Supports an ultra-wide frequency range of 5Hz-40kHz, compatible with Hi-Res Audio, DSD, and other high-resolution formats.
Sealed Durability: Fully sealed design protects against dust and harsh environments, ensuring stable performance in various conditions.
Low Distortion: Optimized magnetic field distribution reduces distortion, ensuring crisp highs, rich mids, and powerful bass.
Premium Connectors: Features 3.5mm gold-plated or balanced interface connectors for reliable signal transmission.
Company profile

Business Type: Manufacturer/FactoryExport Year: 1993-02-11Nearest Port: shanghai, shengzhenAverage Response Time: ≤9.13hTerms of Payment: T/T, D/P, PayPal, etc.International Commercial Terms(Incoterms): FOB, CFR, CIF, DAT, FAS, DDP, DAP, CIP, CPT, FCA, EXW
AI-Powered supplier vetting
SummaryAL TRANSFO TECHNOLOGY Co., Ltd is identified as a trading company that researches and sells power supplies, chargers, coils, transformers, inductors, reactors, wiring harnesses, and electronic appliances. Its company description states that it designs and manufactures transformers, inductors, chokes, power supplies, and cable assemblies, with ISO 9001 and ISO 14001 certifications reported. The supplier offers flexible customization and has approximately eight years of export experience, with 90% of total sales from exports. However, the provided assessments report one R&D engineer, no new products in the past year, no ODM, OEM for popular brands, SDK, in-stock, overseas warehouse, or overseas showroom capability. Service-management weaknesses include no written procedures or records for supplier assessment, corrective actions, or complaint handling. No Fortune 500 cooperation is reported, while repeat-buyer preference is stated at 50%–80%.
CertificationsThe company description states that ISO 9001 and ISO 14001 certifications were earned through the SGS system. These statements provide explicit evidence of the reported certifications, although no certificate validity dates or certificate documents are provided.
After-Sales capabilityThe supplier is reported to have no in-stock service capacity, no overseas warehouse, and no overseas showroom. It also has no written procedures or records for customer complaint handling, service-capability assessment, or corrective and preventive actions, indicating a documented after-sales and service-management deficiency.
R&D capabilityInnovation evidence is weak: the supplier is reported as having one R&D engineer, no new products launched in the past year, no ODM service, no available SDK, and no 3D software design service. Although flexible customization and claimed R&D/manufacturing capabilities are mentioned, the explicit recent-product and resource data indicate a deficiency in demonstrated innovation capability.
Customization capabilityFlexible customization is explicitly reported, and the company description states that its products can be custom made according to customer requirements. This is directly supported by both the capability assessment and the supplier’s own product description.
Client casesThe supplier reports no OEM service for popular brands and no cooperation with Fortune 500 companies. A repeat-buyer preference of 50%–80% is reported, but no named customer cases or independently specified reference projects are provided.
Product Q&A
Q:What materials are used to ensure durability?
A:
It is crafted with nano-grade superconducting copper wire and high-temperature-resistant ceramic insulation to prevent oxidation and aging.
Q:How should the coil be installed?
A:
Install the coil only when the device is powered off and use non-magnetic tools to avoid magnetic interference.
Q:Is there a recommended burn-in period?
A:
For optimal performance, allow a 10-hour burn-in period during initial use.
Q:What is the power handling capacity?
A:
The power handling is 50mW continuous and 200mW peak.
Q:What types of audio systems is this compatible with?
A:
It is compatible with Hi-Res Audio, DSD, mainstream headphone drivers, and amplifier systems.
Send Inquiry
*To:
AL Transfo Technology Limited
AL Transfo Technology Limited*Content:
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