Sound Barrier SB755D — 2″ Throat High Frequency Driver
SB755D Overview
The Sound Barrier SB755D is a professional high frequency compression driver designed for demanding live sound reinforcement and installed audio applications. It features a 2″ throat for compatibility with standard 2″ horn flanges, a 3″ voice coil for enhanced power handling, and a titanium diaphragm that delivers extended high frequency response from 1 kHz to 20 kHz. This driver is suited for system integrators, touring companies, and venue installers requiring reliable, high-sensitivity HF performance in a compact form factor.
The bolt-on mounting type simplifies horn integration, and the compact 6.5″ diameter profile allows for straightforward cabinet and horn assembly in both portable and fixed installations.
Key Features
- 2″ Throat Diameter — Compatible with standard 2″ horn flanges for broad horn selection across professional applications
- 3″ Voice Coil — Large-format voice coil supports up to 300W peak power handling for high-output systems
- Titanium Diaphragm — Provides extended high frequency response and durability under sustained high-SPL use
- 110 dB Sensitivity — High sensitivity rating reduces amplifier demand and supports efficient system design
- 1 kHz to 20 kHz Frequency Range — Full high frequency coverage suitable for two-way and three-way system configurations
- 8 Ohm Nominal Impedance — Standard impedance for straightforward integration with professional amplifiers and crossover networks
- 50 oz. Magnet — Large magnet structure contributes to strong motor force and consistent high-frequency output
- Bolt-On Mounting — Secure, repeatable horn attachment for both portable and permanent installations
Technical Specifications
| Throat Size | 2″ |
| Voice Coil Size | 3″ |
| Peak Power | 300W Max |
| Diaphragm Material | Titanium |
| Frequency Range | 1 kHz – 20 kHz |
| Sensitivity | 110 dB |
| Nominal Impedance | 8 Ohm |
| Distortion | 0.05% Max |
| Magnet Size | 50 oz. |
| Overall Diameter | 6.5″ / 165 mm |
| Overall Depth | 2.75″ / 70 mm |
| Mounting Type | Bolt-On |
| Weight | 2.4 lb / 1.09 kg |

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