Klark Teknik DN 504

Klark Teknik DN 504 Quad Compressor Limiter

The Klark Teknik DN 504 is a 1RU unit with four compressors, hard/soft knee options, auto/manual controls, and stereo linking. Ideal for in-ear monitoring, it includes gain reduction and output level metering.

Klark Teknik DN 504 Quad Compressor Limiter Details

The Klark Teknik DN 504 offers four full-featured compressors in a compact 1RU design, delivering audio performance on par with its ultra-quiet counterpart, the DN500. It features hard and soft knee options, selectable auto or manual attack and release settings, and independent side chain inputs for each channel.

The Klark Teknik DN 504 is particularly well-suited for in-ear monitoring, as channels can be linked in stereo pairs if needed. Comprehensive gain reduction and output level metering make this a highly versatile and space-efficient professional tool.

Features

  • Four channels of full function “quick to set” compression in only one unit of rack space.
  • Switchable knee function provides for both hard and soft compression styles.
  • Auto attack/release mode for inaudible compression and easy set-up.
  • Manual attack/release mode for creating compression effects.
  • Advanced VCA design for extremely low noise and distortion.
  • Separate side chain inputs are provided for each channel.
  • Gain reduction and output level metering is provided for each channel.
  • Additional features include stereo link function which provides two pairs of stereo channels.
  • XLR connectors fitted as standard for main audio terminations, with transformer balancing available as an option.
  • The DN504 is sturdily constructed throughout and complies with standard 19” 1U rack mounting requirements.

Specifications

  • Performance
    • Frequency Response: 20 Hz – 20 kHz, ±0.5 dB
    • Distortion (THD+N): <0.03% @ 1 kHz, +4 dBu
    • Equivalent Input Noise: < -94 dBu (20 Hz – 20 kHz, unweighted)
    • Channel Separation: >90 dB @ 1 kHz
  • Compressor
    • Threshold: -30 dBu to +20 dBu
    • Ratio: 1:1 to 50:1
    • Knee: Switchable 1 dB (hard) / 40 dB (soft)
    • Envelope Attack (90% capture): 50 µs to 20 ms
    • Release (90% recovery): 60 ms to 2 seconds
    • Output Gain: -10 dB to +30 dB
    • Mode: Switchable auto (attack and release controls disabled) or manual
  • Dimensions: 482mm x 292mm x 44.5mm
  • Weight: 5 kg

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The details provided above are drawn from historical documents like advertising brochures or user manuals. They’re shared without bias or review. This info is given solely for your consideration, helping you gauge its usefulness to you.

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MXR MODEL 113 DIGITAL DELAY

By Art Boffi

Sound Quality 100%
Build Quality 100%
Usefullness 100%
Mojo/Funk 100%
Reliability 100%

Great unit. Durable (40 years old and still going unlike the imported stuff being offered today). I own several different delays (I.e. ADA, Lexicon, and multi effect units) and this thing matches up to the best of them. Recommended!

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