Overview
The ST-HP3 is the ideal choice where line-level audio filtering needs to be provided at the input of a power amplifier for protection of public address horns against damage from low frequencies.
The ST-HP3 has one input and two filtered outputs: 300 Hz high pass and 500 Hz high pass. Both the input and output are balanced, and each may be wired unbalanced if required. The input accepts line-level (+4 dBu nominal) audio. The module operates at unity gain (balanced input and output). The two outputs may be used simultaneously.
The ST-HP3 features RDL's SupplyFlex power input configuration for operation directly from ground-referenced, floating or bipolar 24 Vdc power.
Features
- Horn Loudspeaker Protection
- Low-Frequency Attenuation below 300 Hz
- Low-Frequency Attenuation below 500 Hz
- Line-Level Input and Outputs
- Filtering Requiring no Field Adjustment
- RDL® SupplyFlex™ Power Input Configuration
Specifications
| Input | 20 k? balanced line level (+4 dBu) |
| Outputs (2) | 150 ? balanced line level (+4 dBu) |
| Headroom | > 18 dB |
| Attenuation Curve | 18 dB/octave |
| THD+N | < 0.01% |
| Residual Noise | < 90 dB (referred to +4 dBu) |
| Insertion Loss | < 2 dB |
| 300 Hz Output | Frequency Response: 300 Hz to 30 kHz (± 0.5 dB); -3 dB Frequency: 225 Hz |
| 500 Hz Output
Frequency Response: 500 Hz to 30 kHz (± 1.0 dB); -3 dB Frequency: 450 Hz
| |
| Ambient Operating Environment | 0° C to 55° C |
| Power Requirement | GROUND-REFERENCED or FLOATING, 24 Vdc @ 30 mA |
| Dimensions | Height: 0.7 in. (1.7 cm), Width: 3 in. (7.6 cm), Depth: 1.6 in. (3.9 cm) |
| Package Type | Cardboard Box |
| Package Dimensions | 2 x 2 x 4 in. |
| Shipping Weight | 0.19 lbs. |
| WEEE weight | 0.14 lbs. |
| Tariff code | 8518.40.2000 |