Hertz SPL Show ST 35K Neo - Compact Horn Tweeter with Neodymium Drive
The Hertz SPL Show ST 35K Neo is a horn tweeter for high levels in a confined space. The N38 H neodymium drive and a FEM-calculated driver/horn design deliver high efficiency and clean dispersion. The ultra-light aluminum diaphragm, a CCAR voice coil, and the aluminum back cover for efficient heat dissipation make it robust for tough everyday and SPL use. In the kit version, you also get a metal grille and an inline crossover filter.
Technical Highlights
- Neodymium motor (N38 H) for strong performance in a compact design
- FEM-optimized phase plug and horn for controlled directivity
- CCAR voice coil (Copper Clad Aluminium Ribbon) for high thermal stability
- Very light aluminum diaphragm for maximum sound pressure
- Aluminum back cover for improved heat dissipation
- Weatherproof housing impregnation and UV protection
- Good low-frequency extension and high efficiency
- Kit version includes metal grille and inline crossover filter
Technical Data
- Size: 46 mm
- Impedance: 4 Ohm
- Power Handling (Peak): 120 W
- Recommended High-Pass Filtering: 4 kHz, 12 dB/Oct.
- Voice Coil: Ă 35 mm
- Frequency Response: 2 kHz â 20 kHz
- Efficiency (SPL): 109 dB
- Weight: 0.53 kg
- Magnet: Neodymium
- Diaphragm/Dome: Aluminum
Electro-Acoustic Specifications
- Effective Diameter (D): 46 mm
- DC Resistance (Re): 3.3 Ohm
- Resonance Frequency (Fs): 4000 Hz
- Voice Coil Inductance (Le): 0.02 mH
- Force Factor (Bl): 3.5 T·m
- Sound Pressure Level (SPL): 109 dB
Physical Dimensions
- A: 69 mm
- B: 52 mm
- C: 65.7 mm
- D: 33.3 mm
Installation & Compatibility
The ST 35K Neo is suitable for front systems and SPL setups if you are looking for high levels and clear highs. With 4 Ohm impedance, it matches common amplifiers. Set the high-pass at 4 kHz with 12 dB/Oct. to reliably protect the tweeter. The compact dimensions facilitate installation in the A-pillar, mirror triangle, or door panel; the included grille protects the front in everyday use.
Scope of Delivery
ST 35K Neo tweeter. In the kit version, additionally: metal grille and inline crossover filter.
