RDL®

ST-LEQ1

Loudness Equalizer - Use with VCA

SKU: ST-LEQ1
  • Loudness Contour to Follow Volume
  • Improved Aural Flatness at Low Levels
  • Installer-Defined Loudness Equalization
  • Automatic Loudness Equalization when used with any RDL® VCA Remote
  • Recommended Power Supply ( Not Included )
    PS-24AS (USA)PS-24AX (International)
    Category:

    Description

    The ST-LEQ1 has two line-level audio inputs and a single line-level audio output. The audio signal to be equalized connects to the EQ INPUT. If it is desired to mix an unprocessed source with the output signal, this second source is connected to the DIRECT IN input. Loudness equalization is applied to the EQ INPUT signal as the CONTROL voltage is varied.

    The ST-LEQ1 may be operated together with any equipment which provides a 0 to 10 Vdc control. It is specifically designed to operate with other RDL equipment using 0 to 10 Vdc for level control. Because the ST-LEQ1 works with any RDL VCA module, all RDL remote level controls are suited for use with ST-LEQ1 Loudness Equalization.

    The line-level audio source is first fed through the RDL VCA product, then through the ST-LEQ1. The audio output from the ST-LEQ1 feeds the system amplifier or other equipment. The CONTROL terminals to the ST-LEQ1 are wired in parallel with the 0 to 10 Vdc terminals on the RDL VCA. The remote volume control associated with the VCA/ST-LEQ1 combination is adjusted to the normal low listening level, then the installer sets the desired loudness equalization on the multi-turn trimming potentiometer on the ST-LEQ1. As the listening level is increased by the remote control, the loudness equalization is progressively decreased until the audio is flat at normal higher levels.

    Specifications

    Inputs (2):Line-level (+4 dBu nominal)
    Input Impedance:> 30 kΩ (balanced or unbalanced)
    Gain:Unity nominal (into 600 Ω)
    Output Impedance:150 Ω (balanced or unbalanced)
    Headroom:> 16 dB (above +4 dBu)
    THD+N: 50 dB (Either input, 50 Hz to 120 Hz)
    Noise:< -90 dB below +4 dBu (flat response)
    Frequency Response:10 Hz to 40 kHz (±1 dB)
    Control Input:0 to 10 Vdc
    Equalization:Flat to −15 dB max (1 kHz, effective boost of low and high frequencies)
    Ambient Operating Environment:0° C to 55° C
    Power Requirement:GROUND-REFERENCED, 24 Vdc @ 35 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:0.21 lbs.
    WEEE weight:0.155 lbs.
    Tariff code:8543.70.9860

    Related Products

    VCAs & Related Products
    • ST-VCA3

      Voltage Controlled Amplifier

    Related Products

    STICK-ON® Mounting Accessories
    • STR-H6A

      10.4" Rack Mount for 6 STICK-ON Series Products

    • ST-PBR4

      STICK-ON Mounting Bracket

    • ST-RRB1

      Rear rack rail mounting kit for any STICK-ON module

    • SMK-12

      STICK-ON Mounting Plate

    • STR-19A

      STICK-ON Series 19" Racking System - 12 modules

    • SR-12A

      STICK-ON Series 19" Mounting Rack - 12 modules

    • STR-19B

      STICK-ON Series 19" Racking System - 10 modules

    • SR-10

      STICK-ON Series 19" Mounting Rack - 10 modules

    General Mounting Accessories
    • DMK-5

      Detachable Mounting Kit for RDL Modules

    • SR-4

      STICK-ON Series Mounting Rack - 7 modules

    • MB-1

      Mounting Kit - RU, ST and TX Series

    TX™ Mounting Accessories
    • MB-1

      Mounting Kit - RU, ST and TX Series

    DIN Rail Mounting Accessories
    • DRA-35S

      STICK-ON DIN Rail Adapter - 1 module

    • DRA-35S6

      STICK-ON DIN Rail Adapter - 6 modules

    General Wiring Accessories
    • DTB

      STICK-ON® Series Detachable Terminal Block

    Dimensions

    ST-LEQ1

    Downloads

    DocumentsFormat
    DatasheetPDF
    CAD FilesUnitsSizeFormat
    Engineering Functional BlockAmerican3.99 KBDXF
    Panel Diagram - EndAmerican3.26 KBDXF
    Panel Diagram - FrontAmerican58.92 KBDXF
    Panel Diagram - EndMetric3.26 KBDXF
    Panel Diagram - FrontMetric109.46 KBDXF
    High Res ImagesFormat
    st-leq1.zipTIF
    Declaration of Conformity
    Download

    Diagrams

    How To Buy

    Direct Dealer Program

    Becoming an RDL direct dealer is quick and easy. To become a direct dealer, your company must meet the following requirements:

    • Must be an A/V contractor, sound contractor or system integrator
    • Must possess a current resale certificate for your state
    Click here to submit a new direct dealer account inquiry

    Buy Online

    CompanyAddressPhoneLink