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(Open Box) Hertz MLK1650.3 6.5" 150 Watts RMS Mille Series 2-Way Component Speakers System

  • SKU #: 01608

Special Price $895.00

Retail: $1,499.99

($604.99 savings)

Availability: In Stock

Condition: Open Box
Shipping: Free Shipping
Sold As: Complete Sets

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Special Price $895.00

Retail: $1,499.99

(Open Box) Hertz MLK1650.3 6.5" 150 Watts RMS Mille Series 2-Way Component Speakers System

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The MLK 1650.3 Legend two way kit is dedicated to purists of sound, aiming at achieving maximum timbre consistency combined with very high dynamics and extremely extended frequency response. Through a solidly built switch, the MLCX 2 TW.3 crossover provides the ability to realize a bi-amplified system, that is, to connect two amplifiers, or anyway two separate channels, to the crossover, so making it possible to drive woofer and tweeter separately. The significant power increase with this configuration highlights all the features of the MLK 1650.3 Legend system, with all the advantages coming from the multi-amplification. Besides, thanks to the Mid-Contour and Hi-Countor controls, dedicated to the management of woofer cut-off frequency and tweeter cut-off frequency respectively, the cross-point can be varied. Through each of these two “Countor” controls, featuring a two-position selector, the system frequency response can be fine-tuned, adjusting it according to the different acoustics of the cars and the different speaker placements and, most of all, the listener can achieve thieir favourite sound.

ML 280.3 Legend

  • Neodymium magnet optimized with FEA simulations of the magnetic flux for utmost control and fast response to the transients
  • Extremely pure copper short circuit ring, for excellent very high frequency extension
  • Die-cast aluminium face plate with profile optimized with FEA simulations to improve frequency response and dispersion
  • Tetolon Fiber dome optimized with FEA simulations for lower distortion and improved dispersion in high frequency range
  • Frame structure and rear load chamber both derived from a CNC machined solid aluminium block, to ensure mechanically inert response to resonances
  • Rear chamber sized for only 900 Hz Fs: low Fs ensures wide extension in low frequency range and low distortion also in the crossing section, allowing a decreased cut-off frequency
  • High-density damping material underneath the dome, low-density absorbing material in the rear chamber, providing fluid acoustic emission and high damping in the low frequency response

ML 1650.3 Legend

  • Neodymium magnet optimized with FEA simulations for real dynamics and utmost control
  • Very low carbon content CNC machined plates, for maximum magnetic permeability and low distortion at high power levels
  • Aluminium covered pole for a linear impedance modulation and low distortion
  • 36 mm CCAW double layer voice coil wound on a Polyamide former for exceptional power handling and compression-free re production even in the most demanding musical passages
  • Exponential V-cone® with optimized geometry for utmost linearity and dispersion at 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 lightweight, to achieve wide frequency response and limited break-ups at high frequency
  • Three-spoke, very acoustically transparent anti-resonant aluminium alloy basket featuring built-in venting holes
  • CNC machined elegant diamond-cut basket edge featuring the Hertz logo
  • Die-cast aluminium factory provided grille featuring diamond-cut aluminium Hertz logo

MLCX 2 TW.3 Legend

  • Bi-amplification available, selectable through appropriate hi-current rating switch with hi-current carrying capability
  • “Mid-Contour” two-position control, for a linear mid-bass frequency response according to the woofers position in the car and the listener’s favourite sound
  • “Hi-Contour” two-position control, to select the tweeter hi-pass crossover point selection according to the tweeter position/angle towards the listener
  • “Mid-Contour” in conjunction with “Hi-Contour” provides the ability to use MLCX 2 TW.3 to build a two way system based on ML 1650.3 or ML 1800.3 woofer together with ML 280.3 tweeter
  • Three-position switch for tweeter level adjustments in 2 dB steps, to fine-tune the transducer’s emission
  • “Hi-Boost” control, selectable through appropriate switch, to provide better linearity of the tweeter emission above 10kHz when positioned not on axis to with the listener
  • Extremely high quality bi-metallized 160V polyester film capacitors with ultra-low DF, for maximum sound transparency and neat mid/hi frequencies
  • Air wound inductors built on pure copper-wire with up to 1mm diameter, for high saturation threshold of the magnetic flux and low losses on the woofer section where high transient currents are demanded
  • High power rating Wirewound resistors, to ensure performance stability even at high operating temperature. The Wirewound build construction grants low parasitic series inductance thus reducing losses at high frequencies, especially for resistors in series to the tweeter


  • Power Handling: 300 Watts Max 
  • Power Handling: 150 Watts RMS
  • Impedance Ohm: 4
  • Frequency response Hz: 40
  • Sensitivity dB SPL: 92
  • Voice coil Ø mm (in.): Woofer 36 (1.4) Tweeter 28 (1.1)
  • Woofer size mm (in.): 165 (6.5)
  • Tweeter size mm (in.): 28 (1)
  • Woofer magnet: Neodymium
  • Tweeter magnet: Neodymium
  • Woofer cone: Pressed-pulp cone with cotton fibres
  • Tweeter dome: Tetolon
  • Crossover type: 2 Way Passive Crossover
  • Crossover cut off: 2.5 kHz (Mid/Hi-Cont. = ON) 3.5 kHz (Mid/Hi-Cont. = OFF)
Mounting Hole Diameter in (Woofer) 5.5
(Tweeter) 1.88
Mounting Depth in (Woofer) 2.71
(Tweeter) 0.53
Size in (Woofer) 6.5
(Tweeter) 1.38
(Crossover) 7.67 x 4.68 x 1.61
Voice Coil Diameter in (Woofer) 1.4
(Tweeter) 1.1
Power Handling W Peak 300
W Continuous 150
Nominal Impedance (Znom) Ω 4
Frequency Response Hz 40 - 28000
Crossover Woofer Lo-pass 6dB Oct.
Tweeter Hi-pass 12dB Oct.
Cut-off 2.5 kHz (Mid/Hi-Cont. = ON)
3.5 kHz (Mid/Hi-Cont. = OFF)
Adjustment Tweeter +2 / 0 / -2 dB
Hi-Boost ON / OFF
Hi-Contour ON / OFF
Mid-Contour ON / OFF
Bi-Amp ON / OFF
Effective Cone Diameter (D) in (ML 1650.3) 5.19
(ML 280.3) 1.1
DC Resistance (Re) Ω (ML 1650.3) 3.3
(ML 280.3) 3.3
Resonance Frequency (Fs) Hz (ML 1650.3) 65
(ML 280.3) 900
Voice Coil Inductance (Le) mH (ML 1650.3) 0.24
(ML 280.3) 0.013
Equivalent Volume (Vas) l (ML 1650.3) 8.3
(ML 280.3) --
Moving Mass (incl. Air Load) (Mms) g (ML 1650.3) 17.5
(ML 280.3) 0.4
Suspension Compliance (Cms) mm/N (ML 1650.3) 0.3
(ML 280.3) 0.09
Force Factor (BL) T•m (ML 1650.3) 7
(ML 280.3) 1.9
Mechanical Q Factor (Qms) (ML 1650.3) 5.3
(ML 280.3) 4
Electrical Q Factor (Qes) (ML 1650.3) 0.52
(ML 280.3) 1.9
Total Q Factor (Qts) (ML 1650.3) 0.47
(ML 280.3) 1.3
Net Weight per Component lbs (Woofer) 2.84
(Tweeter) 0.22
(Crossover) 1.26

Additional Information