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DATEQ SPL3TS SOUND LIMITER

Description

The DATEQ SPL3TS combines sound level limiting, microphone-based monitoring and a programmable timer for installed audio systems and live performances. Its microcontroller monitors sound levels and adjusts the audio output to maintain the configured limit while preserving musical dynamics.

The built-in clock allows different maximum levels throughout the day, with schedules configured using PC software. A bypass calendar accommodates special events.

For live performances, warning and sanction outputs can work with an optional SRL-1 stage relay to operate a warning light and interrupt power if excessive levels continue. Controls and connections can be sealed after calibration.

Features

  • Automatic sound level control with adjustable thresholds
  • Supplied DCM-5 Class 2 measurement microphone
  • Music and live monitoring modes
  • Programmable daily sound level schedules
  • Calendar-controlled bypass periods
  • Warning and sanction outputs for live performances
  • Balanced stereo XLR connections
  • Adjustable input sensitivity and output attenuation
  • Sealable controls and connections
  • PC configuration through USB
  • Compact 1U rack-mount format

Product Specification

  • Product type: Sound level limiter with programmable timer
  • Operating modes: Music mode and live mode
  • Microphone input: Electronically balanced 3-pin female XLR
  • Line inputs: 2 × electronically balanced 3-pin female XLR
  • Line outputs: 2 × electronically balanced 3-pin male XLR
  • Input impedance: 10 kΩ
  • Output impedance: 600 Ω
  • Frequency response: 20 Hz–20 kHz
  • Signal-to-noise ratio: Greater than 80 dB
  • THD+N: Less than 0.05% (CCIR-RMS)
  • Microphone-based limiter threshold: Adjustable from 80 to 120 dBA
  • Line-based limiter threshold: Adjustable from −14 to +6 dBu
  • Output attenuation without microphone: Adjustable from 0 to −40 dB
  • External attenuation: 0 to −20 dB using a 10 kΩ variable resistor
  • Signalling connector: 25-pin female D-sub
  • Signalling and switching outputs: 20 V DC / 10 mA
  • Computer connection: USB
  • Timer: Three programmable time slots per day
  • Bypass calendar: Programmable bypass periods
  • Power supply: 220–240 V AC, 50 Hz
  • Power consumption: 20 W
  • Rack mounting: 19-inch, 1U
  • Dimensions (W × H × D): 483 × 45 × 175 mm
  • Net weight: 3.5 kg
  • Included microphone: DCM-5 Class 2 measurement microphone

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