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Mille Legend ML 1800.3
Technical Highlights
- Power RMS 200W, peak 400W, impedance 4 Ohm.
- Frequency response 38Hz 6kHz, voice coil Ø 50mm, weight 1.71kg.
- Neodymium magnet, press pulp membrane, "Boundary Free" surround.
- More technical details
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Mille Legend ML 1800.3 by Hertz
Hertz Mille Legend ML 1800.3 as a 6.5 inch (16.5 cm) midbass driver with a size of 180 mm and 4 Ohm impedance. The power handling is 200 W RMS and 400 W peak power, the frequency response is 38–6000 Hz, and the sound pressure level is 93 dB. Equipped with a 50 mm CCAW dual voice coil on polyamide former, FEA-optimized neodymium magnet, and aluminum-coated poles. The diaphragm consists of pressed pulp with cotton fibers, combined with Boundary Free IIR rubber surround and exponential V-cone geometry. The three-spoke basket made of resonance-optimized aluminum alloy is acoustically transparent and ventilated. CNC-milled plates with very low carbon content, diamond-cut basket rim with Hertz logo, and factory-cast aluminum grill. Xmech is ±10 mm, weight is 1.71 kg, and magnet size is 90 x 60.7 x 5 mm.
- 6.5 inch (16.5 cm) midbass driver
- Neodymium magnet, FEA-optimized
- CNC-milled plates with very low carbon content
- Aluminum-coated poles
- 50 mm CCAW dual voice coil on polyamide former
- Exponential V-cone with optimized geometry
- Boundary Free IIR rubber surround
- Pressed pulp diaphragm with cotton fibers
- Three-spoke, resonance-optimized aluminum alloy basket with ventilation holes
- CNC-milled, diamond-cut basket rim with Hertz logo
- Factory-cast aluminum grill with diamond-cut Hertz logo
- Size: 180 mm
- Impedance: 4 Ohm
- RMS power: 200 W
- Peak power: 400 W
- Frequency response: 38–6000 Hz
- SPL: 93 dB
- Voice coil: Ø 50 mm
- Magnet size: 90 x 60.7 x 5 mm
- Magnet material: Neodymium
- Diaphragm: Pressed pulp diaphragm with cotton fibers
- Xmech: ±10 mm
- Weight: 1.71 kg
- A: 184 mm
- B: 160 mm
- C: 88 mm
- D: 76 mm
- E: 189.2 mm
- F: 27 mm
- D: 149 mm
- Re: 3.2 Ohm
- Fs: 60 Hz
- Le: 0.35 mH
- Vas: 12.2 l
- Mms: 27.5 g
- Cms: 0.3 mm/N
- BL: 7.8 T·m
- Qts: 0.5
- Qes: 0.53
- Qms: 7.22

