Hertz Mille Legend ML 1650.3 6.5" 16.5cm Midbass Woofer Speakers 125w RMS Pair

The Hertz Mille Legend ML 1650.3 is a pair of 6.5" (165mm) midbass woofers rated at 125W RMS / 250W peak, from Hertz's flagship Mille Legend range. Designed for door installation in component systems, they feature a neodymium motor, 36mm CCAW double-layer voice coil, and V-cone® profile for high power handling and low distortion.

Key specifications

• Type: 165mm (6.5") midbass woofer, door installation
• Power handling: 125W RMS continuous, 250W peak
• Impedance: 4 ohms
• Frequency response: 40Hz – 6.5kHz
• Voice coil: 36mm CCAW, double layer, polyamide former
• Magnet: neodymium
• Cone: pressed pulp with cotton fibres, V-cone® profile
• Xmech: ±9mm
• Weight: 1.29kg per speaker
• Supplied with die-cast aluminium grille

ML 1650.3 Legend: extreme dynamics, high power handling, realistic sound stage

The Mille Legend line has long been the choice of enthusiasts demanding extreme performance. With the ML 1650.3, Hertz's designers pushed the limits further for a woofer built specifically for door installation in high-end component systems.

• Neodymium magnet optimised with FEA simulations for real dynamics and precise control.
• Very low carbon content CNC machined plates for maximum magnetic permeability and low distortion at high power levels.
• Aluminium covered pole for linear impedance modulation and low distortion.
• 36mm CCAW double-layer voice coil wound on a polyamide former for exceptional power handling and compression-free reproduction.
• Exponential V-cone® with optimised geometry for linearity and dispersion in the mid-frequency range.
• "Boundary Free" IIR rubber surround for better efficiency and wider mid-bass frequency.
• Pressed-pulp cone with cotton fibres, combining stiffness and light weight for wide frequency response and limited break-up at high frequencies.
• Three-spoke anti-resonant aluminium alloy basket with built-in venting holes.
• CNC machined diamond-cut basket edge featuring the Hertz logo.
• Die-cast aluminium grille supplied, featuring a diamond-cut aluminium Hertz logo.

Development involved extensive in-car voicing sessions, multiple prototypes built using FEA simulation, and rigorous measurement with the Klippel® suite and Klippel Scan Vibrometer. The 36mm voice coil delivers the best compromise between power handling and high-frequency response, while the V-cone® profile prevents cone deformation during long excursions, keeping the cone working as a true piston and maximising acoustic pressure output.

If you're building a component system at a lower budget, the Hertz Dieci DSK 165.3 is a 6.5" component set rated at 80W RMS and offers a strong step-up entry point into the Hertz range.