Hertz Mille MPK 163.3 PRO TECHNICAL SPECIFICATIONS

MPK 163.3

THREE WAY SYSTEM

300 W

TECHNICAL SPECIFICATION

Component 3-way system
Size

Woofer mm (in.) 165 (6.5)

Midrange mm (in.) 70 (3)

Tweeter diaphragm mm (in.) 29 (1.14)

Voice Coil Ø

Woofer mm (in.) 25 (1)

Midrange mm (in.) 20 (0.8)

Tweeter mm (in.) 25 (1)

Power Handling

Sensitivity dB SPL 92
Impedance Ω 4

Frequency
Response

Crossover

Adjustment Tweeter level 0 / +2 dB

Weight of one component

Woofer kg (lb) 1.07 (2.36)

Midrange kg (lb) 0.17 (0.37)

Tweeter kg (lb) 0.07 (0.15)

Crossover kg (lb) 0.43 (0.95)

W peak 300

W continuos 150

Hz 40 ÷ 22,5k

Woofer Lo-Pass 450Hz - 6 dB Oct.

Midrange

Tweeter Hi-Pass 5.5kHz - 12 dB Oct.

Midrange level 0 / +2 dB

Band-Pass 450 ÷ 5.5k Hz ­6 dB Oct.

ELECTRO-ACOUSTIC
PARAMETERS MP 25.3 MP 70.3 MP 165.3

D mm 29 65 132
Xmax mm - ±1,5 ±4
Re Ω 3,9 3,7 3,1
Fs Hz 1200 110 70
Le mH 0,02 0,12 0,3
Vas I - 1 9,5
Mms g 0,17 2,9 14,9

Cms mm/N 0,1 0,7 0,36

BL
Qts 0,55 0,82 0,58
Qes 1,98 1 0,67
Qms 0,57 4,6 4,6
Spl dB 91 88 93

T•m

1,6 2,8 5,5

MP 25.3:

1. Tetolon fiber soft dome, for a natural yet detailed reproduction of musical nuances.

2. “Center Tuning Duct” geometry, for lower resonance frequency and reduced

harmonic distortion.

3. High density flux Neodymium magnet, optimized for utmost control during high

energy dynamic transients in the mid-high frequency range.

4. 25mm ferrofluid-cooled mobile voice coil.

5. Rear chamber filled with selected damping material and sized for lower Fs, to

ensure a well damped high pass frequency roll-of f, allowing low cut-off frequency
crossover point.

6. Faceplate featuring FEM (Finite Element Modeling) optimized geometry, for high

linearity in off-axis installations.

7. Wide array of installation accessories, for an easy OEM integration.

MP 70.3:

1. Symmetrical dual Neodymium magnet structure specifically developed with FEM

(Finite Element Modeling ) simulations, for superior dynamics and control.

2. 20 mm CCAW double layer voice coil wound on a Polyamide former with

8 decompression holes, for exceptional power handling and compression-free
reproduction.

3. Exponential V-cone® profile pressed-pulp cone with cotton fibers, combining

stiffness and lightweight for a wide frequency response. Cone profile geometrically
optimized for utmost linearity and dispersion in the mid-high frequency range.

4. “Boundar y Free” rubber surround, for better efficiency and wider mid-bass

fre quency.

5. Anti-vibration rubber magnet cover, to damp spurious vibrations, removable to fit

limited mounting depth installations.

6. Acoustically transparent aluminium alloy basket with elegant diamond cutting and

featuring the aluminium Hertz logo.

7. Full protection metal mesh grill featuring the aluminium Hertz logo and attractive

look mineral powder coated inner grill are included for several install combinations.

MP 165.3:

1. Pure copper voice coil wound on a Polyamide former for high power handling

combined with very low intermodulation distortion of vocals.

2. Exponential V-cone® profile pressed-pulp cone with cotton fibers, combining

stiffness and lightweight for a wide frequency response. Cone profile geometrically
optimized for utmost linearity and dispersion in the mid frequency range.

3. “Boundary Free” rubber surround, for improved efficiency and wider mid-bass

fre quency.

4. High density flux ferrite magnet combined with very low carbon content iron plates,

for low distortion at high power levels.

5. Low mounting depth, acoustically transparent aluminium alloy basket with elegant

diamond cut ting and featuring the aluminium Her tz logo.

6. Full protection metal mesh grill featuring the aluminium Her tz logo and attractive

look mineral powder coated inner grill are included for several install combinations.

MPCX 3.3:

1. Two-position (0 / +2 dB) switch for tweeter & midrange level adjustments,

to fine-tune the transducers emission according to their installation position.

2. 100V extremely high quality bi-metallized polyester film capacitors in the tweeter

section, for ma ximum sound transparency and neat hi-frequencies.

3. 1mm pure copper wire low series resistance inductors, for low dissipation losses on

the woofer section where high transient currents are demanded.

4. Compact footprint design for easy installation, with top vent grille for efficient

heat dissipation.

Elettromedia - 62018 Potenza Picena (MC) Italy - T [phone] - F [phone] - www.elettromedia.it

All Specifications Subject to Change Without Notice_15.A

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