Product Description
RDL ST-HP3 Stick-On Series Dual High-Pass Filters
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.
Power Supply Not Included
Recommended Power Supply:
- PS-24AS (USA)
- PS-24AX (International)
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 kΩ balanced line level (+4 dBu)
Outputs (2): 150 Ω 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)