Hertz MPK 165.3

MP 25.3:

• Tetolon fiber soft dome, for a natural yet detailed reproduction of musical nuances.
• Center Tuning Duct geometry, for lower resonance frequency and reduced harmonic distortion.
• High density flux Neodymium magnet, optimized for utmost control during high energy dynamic transients in the mid-high frequency range.
• 25mm ferrofluid-cooled mobile voice coil.
• Rear chamber filled with selected damping material and sized for lower Fs, to ensure a well damped high pass frequency roll-off, allowing low cut-off frequency crossover point.
• Faceplate featuring FEM (Finite Element Modeling) optimized geometry, for high linearity in off-axis installations.
• Wide array of installation accessories, for an easy OEM integration.

MP 165.3:

• Pure copper voice coil wound on a Polyamide former for high power handling combined with very low intermodulation distortion of vocals.
• Exponential V-cone profile pressed-pulp cone with cotton fibers, combiningstiffness and lightweight for a wide frequency response. Cone profile geometrically optimized for utmost linearity and dispersion in the mid frequency range.
• Boundary Free rubber surround, for improved efficiency and wider
• mid-bass frequency.
• High density flux ferrite magnet combined with very low carbon content iron plates, for low distortion at high power levels.
• Low mounting depth, acoustically transparent aluminium alloy basket with elegant diamond cutting and featuring the aluminium Hertz logo.
• Full protection metal mesh grill featuring the aluminium Hertz logo and
• attractive look mineral powder coated inner grill are included for several
• install combinations.

MPCX 2.3:

• Two-position (0 / +2 dB) switch for tweeter level adjustments, to fine-tune the transducers emission.
• 160V extremely high quality bi-metallized polyester film capacitors with ultra-low DF, for maximum sound transparency and neat mid/hi-frequencies.
• 1mm pure copper wire low series resistance inductors, for low dissipationlosses on the woofer section where high transient currents are demanded.
• Small footprint design for easy installation, with top vent grille for efficientheat dissipation.

Specifications:

• Power Handling – Peak W: 220
• Power Handling – Continuous W: 110
• Impedance: 4 ohms
• Frequency response Hz: 40 22,5k
• Sensitivity dB SPL: 92
• Voice coil mm (in.): 25 (1)
• Woofer size mm (in.): 165 (6.5)
• Tweeter size mm (in.): 29 (1.14)
• Woofer magnet: High density flux ferrite
• Tweeter magnet: Neodymium
• Woofer cone: Pressed-pulp cone with cotton fibers
• Tweeter dome: Tetolon
• Crossover type: 2 Way Passive Crossover
• Crossover cut off: 3,5 kHz
• Top-mount Depth (Inches) 2 1/2
• Bottom-mount Depth (Inches) 2 11/16
• Cutout Diameter or Length (inches) 5 1/2
• Mounting Height (Inches) 0.42

Electro-acoustic Specifications:

• Diameter (D): 132 mm
• DC Resistance (Re): 3.1 Ohms
• Resonant Frequency (Fs): 70 Hz
• Voice Coil Inductance (Le): 0.3 mH
• Equivalent Air Volume (Vas): 9.5 liters
• Moving Mass (Mms): 14.9 grams
• Mechanical Compliance (Cms): 0.36 mm/Newtons
• Force Factor (BL): 5.5 Tesla*meters
• Total Q-factor (Qts): 0.58
• Electrical Q-factor (Qes): 0.67
• Mechanical Q-factor (Qms): 4.6
• Sound Pressure Level (SPL): 93 dB

• UPC: 8018823114011
• Weight: 7.7
• Authorized Internet Dealer