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The Hertz DCX 100.3 delivers a clear, detailed upgrade over many OEM 3.5–4" speakers with notable low-end punch and high sensitivity; they shine with a little power and open up the soundstage in many vehicles.
Buyer confidence
86%Key specs
Full specs- Component
- Two way coaxial
- Size mm (in.)
- 100 (4)
- Power Handling - Continuous W
- 30
- Power Handling - Peak W
- 60
- Impedance Ohm
- 4
- Frequency Response Hz
- 70 ÷ 21k
- Woofer Magnet size D x d x h mm (in.)
- 70 x 32 x 10 (2.7 x 1.3 x 0.4)
- Weight of one speaker kg (lb.)
- 0,45 (0.99)
Key specs
Full specs- Component
- Two way coaxial
- Size mm (in.)
- 100 (4)
- Power Handling - Continuous W
- 30
- Power Handling - Peak W
- 60
Review highlights
Based on customer reviewsHertz DCX 100.3 — punchy 4" coaxials with clear, lively sound
The Hertz DCX 100.3 delivers a clear, detailed upgrade over many OEM 3.5–4" speakers with notable low-end punch and high sensitivity; they shine with a little power and open up the soundstage in many vehicles.
What buyers praise
- Noticeable clarity and instrumental detail compared with stock speakers
- Surprisingly strong low-end punch for a 4" coaxial
What to watch for
- Fit and mounting can be fiddly—some installs required adapter plates, brackets, or creative spacers
Overview
To meet all installation needs, without giving up on Hertz quality and performance, Hertz DCX 100.3 car audio coaxial is designed with maniacal care to provide 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
12
| Component | Two way coaxial |
| Size mm (in.) | 100 (4) |
| Power Handling - Continuous W | 30 |
| Power Handling - Peak W | 60 |
| Impedance Ohm | 4 |
| Frequency Response Hz | 70 ÷ 21k |
| Woofer Magnet size D x d x h mm (in.) | 70 x 32 x 10 (2.7 x 1.3 x 0.4) |
| Weight of one speaker kg (lb.) | 0,45 (0.99) |
| Woofer Magnet | High density flux ferrite |
| Tweeter Magnet | Neodymium |
| Cone | Water-repellent pressed paper |
| Dome | PEI |
Electro-acoustic Specs
11
| D mm | 85 |
| Re Ohm | 3,3 |
| Fs Hz | 115 |
| Vas I | 1,7 |
| Mms g | 5,0 |
| Cms mm/N | 0,38 |
| BL T*m | 3,5 |
| Qts | 0,79 |
| Qes | 0,96 |
| Qms | 4,33 |
| Spl dB | 92 |
Physical Specs
5
| A | 99 mm (3.9 in.) |
| A3 | 129 mm (5.1 in.) |
| B | 94 mm (3.7 in.) |
| C | 50 mm (2.0 in.) |
| D | 43 mm (1.7 in.) |
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