1 Inch Throat Diameter Ferrite Hf Compression Driver (DE4403TS)

• Customization: Available
• Noise: <102dB
• Hi-Fi: Not Hi-Fi
• Model NO.: DE-4403TS
• Activity: Passive
• Operation Mode: Wire / Remote Control
• Speaker System: 5.1 Channel
• Speaker Material: Plastic
• Application: Commercial, Home
• Certification: CE, RoHS
• Monitor: VFD Screen
• THD: 0.005%-0.01%
• Coil Diameter: 44.4mm
• Power Capacity: 40watts RMS
• Sensitivity: 106dB
• Frequency Range: 1.2kHz-20kHz
• Transport Package: Standard Export Cartons
• Specification: ferrite
• Trademark: OEM
• Origin: Ningbo China
• HS Code: 8518900090
• Production Capacity: 50, 000PCS/Month
• Package Size: 30.00cm * 30.00cm * 45.00cm
• Package Gross Weight: 10.000kg
• Lead Time: 15 days (1 - 500 Pieces) ; To be negotiated ( > 500 Pieces)

Product Description

DE-4403TS
Specifications :
 

Model	DE-4403TS
Throat Diameter	1 in (25 mm)
Mounting Type	Screw on 1 3/8″ or Bolt-on
Nominal Impedance	8 Ohm
Power Capacity	40 Watts RMS
Sensitivity (1W/1M)	106 dB
Frequency Range	1.2 KHz - 20 KHz
Diaphragm Material	Titanium
Voice Coil Diameter	1.75 in (44.4 mm)
Voice Coil Material	Round & Ribbon Aluminium Wire
Flux Density	1.6 T
Magnet	Strontium Ferrite Y35

The DE-4403TS is a professional compression driver that stands out through its unusually large 44.4mm (1.75″) voice coil - a feature more commonly found in drivers one size up. This oversized coil, wound with a hybrid of round and ribbon aluminium wire, allows the driver to handle 40 W RMS with exceptional thermal stability. The result is a driver that remains composed and linear even during prolonged high-output use, with virtually no power compression to degrade the listening experience over time.

The precision titanium diaphragm is engineered for high stiffness and low mass, producing crisp transients and excellent vocal presence without the metallic harshness that poorly designed titanium drivers can exhibit. Combined with a Y35 Strontium Ferrite magnet generating a strong 1.6 T flux field, the DE-4403TS achieves tight diaphragm control, fast attack and decay, and low intermodulation distortion across its entire 1.2 kHz - 20 kHz range.

A standout practical benefit is the driver's ability to operate cleanly down to 1.2 kHz, enabling system designers to choose lower crossover points. This reduces the load on midrange drivers, improves phase coherence around the crossover region, and ultimately delivers a more natural, cohesive sound. The dual mounting system (screw-on 1 3/8″ and bolt-on) ensures broad compatibility with industry-standard 1″ throat horns.

Key Advantages

- Oversized 1.75″ Voice Coil: Provides a substantially larger radiating area for heat dissipation than typical 1″ drivers, minimizing thermal compression and extending reliability under demanding conditions.
- Hybrid Round & Ribbon Aluminium Wire: Round wire delivers mechanical strength and consistent winding; ribbon wire increases conductive surface area, lowering resistance and reducing eddy-current losses for cleaner highs.
- Titanium Diaphragm: High stiffness-to-mass ratio ensures detailed, articulate reproduction with strong vocal intelligibility - essential for both speech and music applications.
- 1.6 T Flux Density: The Y35 ferrite magnet produces a stable, linear magnetic field that keeps distortion low and transient response tight, even at high drive levels.
- Deep Crossover Capability: Usable from 1.2 kHz upward, allowing flexible system tuning and reducing lobing effects in multi-way designs.
- Dual Mounting Options: Screw-on and bolt-on compatibility makes installation and retrofitting straightforward across a wide range of horn types.

Typical Applications

- Professional PA Systems: Mid-size to large venues requiring consistent, high-output HF coverage with dependable reliability.
- Houses of Worship: Clear, intelligible speech reinforcement and musical detail reproduction in sanctuaries of varying sizes and acoustic treatments.
- Live Performance & Touring: Robust enough for touring rigs, club installations, and festival stages where gear is subjected to daily load-in/load-out and high SPL.
- Fixed Installations: Auditoriums, lecture halls, and conference centers benefit from the driver's long-term stability and low maintenance requirements.
- Stage Monitoring: Smooth off-axis response and controlled dispersion make it effective in wedge monitors and side-fill systems where performers need accurate vocal feedback.
- Theatrical & Broadcast Sound: Clean transient response and low distortion suit nuanced vocal and instrumental reproduction for drama, musicals, and studio monitoring.
- Outdoor & Sports Venues: Performs reliably in open-air environments, providing clear announcements and music over extended distances.

The DE-4403TS represents a thoughtful combination of over-engineered thermal management, precision materials, and practical installation flexibility. It is a driver built not just for impressive specifications, but for consistent, high-quality performance in the real world - making it a trusted choice for integrators, OEMs, and audio professionals across a broad spectrum of applications.