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ESB 4.75 4000 Series 3" Midrange Car Speakers 100w RMS
4.75 4000
Sale price
£249.99
Regular price
£269.99
Save
£20.00
The ESB 4.75 is a 3-inch (75 mm) cone midrange car speaker rated at 100w RMS, part of ESB Audio's 4000 Series. It features a high-grade N-52 neodymium magnet and a die-cast aluminium basket, designed to deliver high efficiency alongside factory or low-power amplifiers.
Key specifications
- Driver size: 3 inch / 75 mm
- Type: Cone midrange
- Power handling: 100w RMS
- Magnet type: High-grade neodymium (N-52)
- Basket material: Die-cast aluminium alloy
- Series: ESB 4000 Series
4.75 3"/75 mm Cone Midrange
The 4000 Series was designed by ESB Audio to push the limits of cost versus performance. The 3"/75 mm midrange driver uses advanced materials and a high-grade, high-energy neodymium magnet for high efficiency, supporting strong sound pressure levels even with low-power factory amplifiers. Premium matt black steel grilles give the speakers a refined finish that suits a wide range of car interiors. The 4000 Series is also available as the ESB 4.165 6.5-inch component mid woofer.
Features
- Ultra-low carbon alloy steel pole piece CNC-machined using magnet analysis software (FEM) and cold forged in one piece for perfect geometry. Creates an extra magnetic force concentration just in front of the voice coil.
- High-grade N-52 neodymium magnet. Over 25% stronger for the same mass than common N-48 magnets, with high resistance to demagnetisation.
- Die-cast aluminium alloy basket frame. Offers strong rigidity and minimal resistance to airflow without affecting sound quality. Cast to strict specifications for consistent quality.
- CNC-machined ultra-low carbon alloy steel pole plate. Ensures perfect flatness for a flush fit over the magnet, preserving magnetic flux.
- Large aluminium copper-clad vented voice coil. Handles high power with excellent heat dissipation, lightweight construction, and high dynamic reproduction.
- Long-fibre, unbleached pulp cone with a special external treatment. Combines lightness, rigidity, and internal damping.
- Soft nitrile rubber surround suspension. UV-resistant and unaffected by temperature changes, with a special edge design for free forward and backward movement.
- Deluxe protective stainless-steel grille included.
Product Specification:
| Speaker Type | Component Midrange |
|---|---|
| Nominal Diameter | 3”/75 mm |
| Nominal Impedance (Znom) | 4 Ohms |
| Continuous Power Handling | 100 W |
| Peak Power Handling | 200 W |
| Rec. Amplifier Power | 40 - 150W (RMS) |
| Voice Coil | Resistance (Re) 3.78 Ohms |
| Voice Coil | Diameter 25.5 mm |
| Free Air Resonance (Fs) | 78.5 Hz |
| Reference Efficiency (no) | 0.35 % |
| Sensitivity | 87.6 dB @ 1W/1m / 90.6 dB @ 2.83V/1m |
| Electrical “Q” (Qes) | 0.299 |
| Mechanical “Q” (Qms) | 2.397 |
| Total Speaker “Q” (Qts) | 0.266 |
| Equivalent Compliance (Vas) | 2.22 lt |
| Moving Mass (Mms) | 3.87 g |
| Mech. Compliance (Cms) | 0.106 mm/N |
| Magnetic Strength (BL) | 4.917 N/A |
| Effective Piston Area (Sd) | 38.48 sq. cm |
| One-Way Linear Excursion (Xmax) | 2.6 mm |
