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Hertz

Dieci#DCX 165.3

Hertz Dieci DCX 165.3Car Audio Coaxial Speaker

4.763 reviewsSee all reviews

The Hertz DCX 165.3 deliver clear, detailed mids and highs and high sensitivity that lets them play loudly and cleanly on factory head units. They tighten up upper-bass and imaging, but they trade off deep bass and can require minor fitment or wiring tweaks in some vehicles.

Buyer confidence

85%

Key specs

Full specs
Component
Two way coaxial
Size mm (in.)
165 (6.5)
Power Handling - Continuous W
60
Power Handling - Peak W
120
Impedance Ohm
4
Depth mm (in.)
72 (2.8)
Woofer Voice Coil Ø mm (in.)
25 (1.0)
Frequency Response Hz
60 ÷ 21k

Key specs

Full specs
Component
Two way coaxial
Size mm (in.)
165 (6.5)
Power Handling - Continuous W
60
Power Handling - Peak W
120

Review highlights

Based on customer reviews

Hertz DCX 165.3 — clear, efficient 6.5" coaxials with a mid/high focus

The Hertz DCX 165.3 deliver clear, detailed mids and highs and high sensitivity that lets them play loudly and cleanly on factory head units. They tighten up upper-bass and imaging, but they trade off deep bass and can require minor fitment or wiring tweaks in some vehicles.

63 reviews4.7/5 averageUpdated Mar 15, 2026

What buyers praise

  • Clear, detailed mids and highs
  • Punchy, tight upper-bass and midrange

What to watch for

  • Limited low-end extension; a subwoofer is recommended for deep bass
Overview
To meet all installation needs, without giving up on Hertz quality and performance, Hertz DCX 165.3 car audio coaxial speaker is designed with maniacal care to provide a linear frequency response and ensure high reliability. A Neodymium magnet, PEI dome tweeter, built-in crossover, TPU (Thermoplastic polyurethane) surround and a pressed-paper cone provide the optimum ratio between installation friendliness and sound with dynamic and emotional impact.
Specs

Technical Specs

14
ComponentTwo way coaxial
Size mm (in.)165 (6.5)
Power Handling - Continuous W60
Power Handling - Peak W120
Impedance Ohm4
Depth mm (in.)72 (2.8)
Woofer Voice Coil Ø mm (in.)25 (1.0)
Frequency Response Hz60 ÷ 21k
Woofer Magnet size D x d x h mm (in.)80 x 40 x 15 (3.1 x 1.6 x 0.6)
Weight of one speaker kg (lb.)0,77 (1.69)
Woofer MagnetHigh density flux ferri
Tweeter MagnetNeodymium
ConeWater-repellent pressed paper
DomePEI

Electro-acoustic Specs

11
D mm135
Re Ohm3,3
Fs Hz68
Vas I14,3
Mms g11,0
Cms mm/N0,49
BL T*m4,0
Qts0,85
Qes0,96
Qms7,54
Spl dB93

Physical Specs

4
DCX 165.3
A165 mm (6.5 in.)
B144 mm (5.7 in.)
C72 mm (2.8 in.)
D64 mm (2.5 in.)
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Accessories
Grille

Grille

DG 165.3 optional grille