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Radio Design Labs ST-HP3
High Pass Filter - 300 Hz & 500 Hz

OUR PART #  STHP3

Our Price: $125.14
List Price: $167.39
You save 25%! (Low Price Guarantee)
Usually ships in 7-14 business days.
Need it sooner? Call us!

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Radio Design Labs' 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.

NOTE: Radio Design Labs' PS-24AS power supply is NOT included but is required in order to power this product.  Please see the "Accessories" tab or click here for more information on the PS-24AS power supply.

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

Typical Performance:

  • Input: 20 kO balanced line level (+4 dBu)
  • Outputs (2): 150 O balanced line level (+4 dBu)
  • Headroom: > 18 dB
  • 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 (+/- 1.0dB)
    -3 dB Frequency: 450 Hz
  • Power Requirement: GROUND-REFERENCED or FLOATING, 24 to 33 Vdc @ 30 mA
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Radio Design Labs STR-19A Rackmount System for 12 Stick-On Units
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24 VDC 500mA Switching Power Supply
Radio Design Labs PS-24AS 24 VDC 500mA Switching Power Supply
Radio Design Labs' PS-24AS is a 24 Vdc switching power supply with a North American AC plug.  500 mA, dc plug.Specifications: Input: 100 to 240 VACOutput: 24 Vdc, 500 mA (UL, CSA)Dimensions: 1.65" x 2.75" x 1.45" (4.2 x 7 x 3.7 ...
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Radio Design Labs DRA-35S Din Rail Adaptor for STICK-ON
The DRA-35S is a 35 mm DIN rail mounting bracket that provides positive mounting for any RDL STICK-ON® module. The oblique mounting angle of the DRA-35S allows an installer to mount several STICK-ON modules to a single DIN rail. Access to ...
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Usually ships in 7-14 business days.
Need it sooner? Call us!
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Usually ships in 7-14 business days.
Need it sooner? Call us!
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Single RACK-UP Mounting Bay Utility Chassis
Radio Design Labs UC-1 Single RACK-UP Mounting Bay Utility Chassis
Radio Design Labs' UC-1 is an ULTRASTYLE design tabletop chassis for mounting RDL modules and accessories. The front panel features a single RACK-UP mounting bay. The rear panel has an identical mounting bay and is supplied with matching ...
Usually ships in 7-14 business days.
Need it sooner? Call us!
85.69 114.62 25
Usually ships in 7-14 business days.
Need it sooner? Call us!
Mounting Frame for Stick/TX
Radio Design Labs SR-4 Mounting Frame for Stick/TX
Radio Design Labs' SR-4 is a universal module chassis that can mount to a backboard, wall or nearly any other support. It provides mounting for 4 STICK-ON power amplifiers or 7 standard STICK-ON modules. TX ™ modules may also be mounted. ...
Usually ships in 7-14 business days.
Need it sooner? Call us!
84.88 113.53 25
Usually ships in 7-14 business days.
Need it sooner? Call us!
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The PM-1T is a tray that mounts above a projector using a standard (1.5" I.D.) round projector pole or any smaller round or rectangular pole. The tray accommodates up to two FP-PA20 Audio Power Amplifiers (for stereo operation) and two ...
Usually ships in 7-14 business days.
Need it sooner? Call us!
81.97 109.63 25
Usually ships in 7-14 business days.
Need it sooner? Call us!
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Radio Design Labs' SR-12A chassis can be mounted in a rack or on a backboard to provide mounting of 12 STICK-ONs.
Usually ships in 7-14 business days.
Need it sooner? Call us!
65.41 87.48 25
Usually ships in 7-14 business days.
Need it sooner? Call us!
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The SMK-12 allows removable surface (up to 6 units) or edge (typically 12, max. 16) mounting of STICK-ON units. They can be fastened to its surface using screws or adhesive foam pads.
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Need it sooner? Call us!
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Usually ships in 7-14 business days.
Need it sooner? Call us!
Detachable Terminal Block
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Use DTB's to quickly detach and reattach wiring harness to STICK-ON units.
Usually ships in 7-14 business days.
Need it sooner? Call us!
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Usually ships in 7-14 business days.
Need it sooner? Call us!
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TX or STICK-ON Module fastens to MB-3 which slides into FP-RRA/H track.
Usually ships in 7-14 business days.
Need it sooner? Call us!
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Usually ships in 7-14 business days.
Need it sooner? Call us!
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Two mounting brackets mounts a STICK-ON, TX, or Rack-Up module to a flat surface.
Usually ships in 7-14 business days.
Need it sooner? Call us!
3.46 4.08 15
Usually ships in 7-14 business days.
Need it sooner? Call us!

Click to download

Radio Design Labs ST-HP3
High Pass Filter - 300 Hz & 500 Hz

OUR PART #  STHP3

Product Information:

Radio Design Labs' 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.

NOTE: Radio Design Labs' PS-24AS power supply is NOT included but is required in order to power this product.  Please see the "Accessories" tab or click here for more information on the PS-24AS power supply.

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

Typical Performance:

  • Input: 20 kO balanced line level (+4 dBu)
  • Outputs (2): 150 O balanced line level (+4 dBu)
  • Headroom: > 18 dB
  • 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 (+/- 1.0dB)
    -3 dB Frequency: 450 Hz
  • Power Requirement: GROUND-REFERENCED or FLOATING, 24 to 33 Vdc @ 30 mA
Rackmount System for 12 Stick-On Units
Radio Design Labs STR-19A Rackmount System for 12 Stick-On Units
Radio Design Labs' STR-19A Racking System holds up to 12 STICK-ONs in a 19" rack and only occupies two rack spaces.
In Stock
136.70 182.87 25
In Stock
Free Shipping Available
Stick-On Mounting Rack for 10 Units
Radio Design Labs SR-10 Stick-On Mounting Rack for 10 Units
Radio Design Labs' STR-10 Racking System holds up to 10 STICK-ON units.  It holds STICK-ONs at an angle allowing for control adjustment from either the edge of a STICK-ON, or the top (depending on where the adjustment is located on ...
In Stock
65.41 87.48 25
In Stock
Free Shipping Available
24 VDC 500mA Switching Power Supply
Radio Design Labs PS-24AS 24 VDC 500mA Switching Power Supply
Radio Design Labs' PS-24AS is a 24 Vdc switching power supply with a North American AC plug.  500 mA, dc plug.Specifications: Input: 100 to 240 VACOutput: 24 Vdc, 500 mA (UL, CSA)Dimensions: 1.65" x 2.75" x 1.45" (4.2 x 7 x 3.7 ...
In Stock
23.40 31.28 25
In Stock
Din Rail Adaptor for STICK-ON
Radio Design Labs DRA-35S Din Rail Adaptor for STICK-ON
The DRA-35S is a 35 mm DIN rail mounting bracket that provides positive mounting for any RDL STICK-ON® module. The oblique mounting angle of the DRA-35S allows an installer to mount several STICK-ON modules to a single DIN rail. Access to ...
In Stock
19.40 22.89 15
In Stock
Rackmount Kit for 10 Stick-On Units
Radio Design Labs STR-19B Rackmount Kit for 10 Stick-On Units
Radio Design Labs' STR-19B Racking System holds up to 10 STICK-ON unitss in a 19 inch rack and only occupies two rack spaces. The STR-19B holds STICK-ONs at an angle allowing for control adjustment from either the edge of a STICK-ON, or ...
Usually ships in 7-14 business days.
Need it sooner? Call us!
162.53 217.40 25
Usually ships in 7-14 business days.
Need it sooner? Call us!
Free Shipping Available
Single RACK-UP Mounting Bay Utility Chassis
Radio Design Labs UC-1 Single RACK-UP Mounting Bay Utility Chassis
Radio Design Labs' UC-1 is an ULTRASTYLE design tabletop chassis for mounting RDL modules and accessories. The front panel features a single RACK-UP mounting bay. The rear panel has an identical mounting bay and is supplied with matching ...
Usually ships in 7-14 business days.
Need it sooner? Call us!
85.69 114.62 25
Usually ships in 7-14 business days.
Need it sooner? Call us!
Mounting Frame for Stick/TX
Radio Design Labs SR-4 Mounting Frame for Stick/TX
Radio Design Labs' SR-4 is a universal module chassis that can mount to a backboard, wall or nearly any other support. It provides mounting for 4 STICK-ON power amplifiers or 7 standard STICK-ON modules. TX ™ modules may also be mounted. ...
Usually ships in 7-14 business days.
Need it sooner? Call us!
84.88 113.53 25
Usually ships in 7-14 business days.
Need it sooner? Call us!
Pole Mount Tray for RDL Module
Radio Design Labs PM-1T Pole Mount Tray for RDL Module
The PM-1T is a tray that mounts above a projector using a standard (1.5" I.D.) round projector pole or any smaller round or rectangular pole. The tray accommodates up to two FP-PA20 Audio Power Amplifiers (for stereo operation) and two ...
Usually ships in 7-14 business days.
Need it sooner? Call us!
81.97 109.63 25
Usually ships in 7-14 business days.
Need it sooner? Call us!
STICK-ON Series 19"W Mounting Rack for up to12 Modules
Radio Design Labs SR-12A STICK-ON Series 19"W Mounting Rack for up to12 Modules
Radio Design Labs' SR-12A chassis can be mounted in a rack or on a backboard to provide mounting of 12 STICK-ONs.
Usually ships in 7-14 business days.
Need it sooner? Call us!
65.41 87.48 25
Usually ships in 7-14 business days.
Need it sooner? Call us!
Mounting Strip for STICK-ON Units
Radio Design Labs Smk 12 Mounting Strip for STICK-ON Units
The SMK-12 allows removable surface (up to 6 units) or edge (typically 12, max. 16) mounting of STICK-ON units. They can be fastened to its surface using screws or adhesive foam pads.
Usually ships in 7-14 business days.
Need it sooner? Call us!
28.01 37.45 25
Usually ships in 7-14 business days.
Need it sooner? Call us!
Detachable Terminal Block
Radio Design Labs Dtb Rdl Detachable Terminal Block
Use DTB's to quickly detach and reattach wiring harness to STICK-ON units.
Usually ships in 7-14 business days.
Need it sooner? Call us!
6.92 8.16 15
Usually ships in 7-14 business days.
Need it sooner? Call us!
Kit to Mount ST, TX Series Modules on FP Panel
Radio Design Labs MB3-RDL Kit to Mount ST, TX Series Modules on FP Panel
TX or STICK-ON Module fastens to MB-3 which slides into FP-RRA/H track.
Usually ships in 7-14 business days.
Need it sooner? Call us!
5.11 6.83 25
Usually ships in 7-14 business days.
Need it sooner? Call us!
Mounting Kit for STICK-ON, TX, or Rack-Up module
Radio Design Labs MB1-RDL Mounting Kit for STICK-ON, TX, or Rack-Up module
Two mounting brackets mounts a STICK-ON, TX, or Rack-Up module to a flat surface.
Usually ships in 7-14 business days.
Need it sooner? Call us!
3.46 4.08 15
Usually ships in 7-14 business days.
Need it sooner? Call us!

Click to download

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