Radio Design Labs STP-1 Universal Audio Attenuator
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Radio Design Labs STP-1 Universal Audio Attenuator

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Two Adjustable Attenuators in One Package
  • Audio level attenuation
  • Adjust audio level into equipment
  • Preset audio levels
  • Precisely match audio levels
  • Increase audio input headroom
  • Operates with balanced or unbalanced inputs/outputs
  • No lugs required for reliable connections

Item #: 77959

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Special Price: $51.97

List Price: $78.55

Your Savings: $26.58

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  • Specs
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  • The STP-1 is a pair of convenient attenuator pads that can be located at the precise location that attenuation is needed. The low-cost STP-1 eliminates the costly labor of figuring and assembling fixed pads. Multi-turn trimmers in the STP-1 permit precise adjustment of levels without the need to connect any jumpers or external resistors. The STP-1 operates in either high or low impedance, balanced or unbalanced circuits. The wiring legend is printed on the case for easy installation.

    • Nominal Impedance: HI-Z 10k Ohms; LO-Z 600 Ohms
    • Adjustment: Screwdriver trimming adjustment, 15 turns continuous
    • Circuit Type: Passive modified H & T pads
    • Connections: Terminal block accepts 14 to 24 guage wire; no lugs required; input/output connection legend located on STP-1
    • Maximum Signal Input, HI-Z Balanced Line: +33 dBu, 35 V rms
    • Maximum Signal Input, LO-Z Balanced Line: +27 dBu, 18 V rms
    • Maximum Signal Input, HI-Z Unbalanced Line: +35 dBV, 45 V rms
    • Reference Level, Line level: +10 dBu to -10 dBu
    • Reference Level, Mic level: -45 dBu to -65 dBu
    • Power Requirement: Passive (not required)
    • Ambient Operating Environment: 20° C to 60° C
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