Hertz SPL Show ST 35A Neo - 46mm Horn Tweeter for High SPL
The Hertz SPL Show ST 35A Neo is a compact horn tweeter for setups that demand maximum sound pressure and clear highs. The powerful neodymium magnet, a FEM-optimized driver and horn geometry, and the extra-light aluminum diaphragm ensure high efficiency and clean transients. Thanks to its water-resistant design and anti-UV treatment, the tweeter is also suitable for outdoor use. With 109 dB efficiency and 4 Ohm impedance, it can be flexibly used in SPL-oriented car hi-fi systems â available at Carhifi.shop.
Technical Highlights
- Horn tweeter with neodymium magnet for high performance in a compact design
- FEM-optimized phase plug and horn-loaded design for efficient sound beaming
- Very light aluminum diaphragm to maximize sound pressure
- CCAR (Copper Clad Aluminium Ribbon) voice coil for high thermal and mechanical resistance; easy replacement via recone kit
- Water-resistant and UV-resistant â also ideal for outdoor use
- Rear aluminum cover for effective heat dissipation
- High efficiency and low cutoff frequency for SPL setups
Technical Data
- Size (Diameter): 46 mm
- Power Handling (Peak): 120 W
- Recommended High-Pass Filtering: 5 kHz, 12 dB/Oct
- Impedance: 4 Ohm
- Voice Coil: Ă 35 mm
- Frequency Response: 2 kHz â 20 kHz
- Weight (single): 0.53 kg
- Magnet Material: Neodymium
- Diaphragm Material: Aluminum
Electro-Acoustic Values
- Effective Diameter (D): 46 mm
- DC Resistance (Re): 3.3 Ohm
- Free Air Resonance (Fs): 4000 Hz
- Voice Coil Inductance (Le): 0.02 mH
- Force Factor (Bl): 3.5 T·m
- Sensitivity (SPL): 109 dB
Dimensions
- A: 69 mm
- B: 52 mm
- C: 65.7 mm
- D (Mounting Depth): 33.3 mm
Installation & Compatibility
The ST 35A Neo is ideal for powerful mid-woofers in SPL and show installations. Use a high-pass filter from 5 kHz with 12 dB/Oct to thermally and mechanically relieve the tweeter. With 4 Ohm, it is compatible with common amplifiers and active or passive crossover concepts. The water-resistant and UV-resistant design also allows applications in exposed mounting positions.
