Description
HERTZ ST25KNEO – 44 (1.8) mm (in.) | High Efficiency Compression Driver | 100 W | 4 Ohm
NEO line bullet tweeters are a totally new project, lighter and more compact compared to the previous ST 25 and with superior performance thanks to the use of Neodymium N38 H for the motor units and a FEM (Finite Element Method) optimized driver/horn design. The “Kit” version, ST 25K Neo features metallic mesh grille and inline crossover filter included.
Features:
1. Powerful Neodymium magnet providing high performance with compact size.
2. FEM (Finite Element Method) optimized phase-plug and loading horn.
3. CCAR (Copper Clad Aluminium Ribbon) voice coil for unheard-of thermal and mechanical capability ready for an easy replacement with replacement body kit.
4. Extra-light aluminium membrane to maximize SPL with high current, screw terminals.
5. Body waterproofing and anti-UV treatment to allow safe outdoor use without discoloration over time.
6. “Kit” version with metallic mesh grille and inline crossover filter included.
| Component | HIGH EFFICIENCY COMPRESSION DRIVER |
| Size mm (in.) | 44 (1.8) |
| Power Handling – Peak W | 100 |
| Power Handling – Peak Note | Hi-pass filtered @ 5 kHz – 12 dB Oct. |
| Impedance Ohm | 4 |
| Voice Coil Ø | 25 (1) |
| Frequency Response Hz | 3k ÷ 20k |
| Weight of one component kg (lb.) | 0,39 (0.86) |
| Magnet | Neodymium |
| Dome | Aluminium |
| D mm | 35,5 |
| Re Ohm | 2,9 |
| Fs Hz | 3900 |
| Le mH | 0,03 |
| BL T*m | 2,05 |
| Spl dB | 107 |
Physical Specs
| A | 57 mm | 2.24 in. |
| B | 43,5 mm | 1.7 in. |
| C | 55,5 mm | 2.19 in. |
| D | 29,7 mm | 1.17 in. |
Frequency response
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