Edison Professional Scratch 2500 Dj System Manual < Newest >

If you are setting up the Scratch 2500 for the first time (or after a long storage), follow this sequence precisely. The manual emphasizes that skipping the grounding step can cause a 60Hz hum.

The manual highlights the unit's 3U Rack Mount design.

Unlike modern controllers, these are independent units. edison professional scratch 2500 dj system manual

  • Loop Controls: In/Out buttons set loop points. The manual states loops are "quantized" to the nearest beat only if Auto Cue is ON.
  • Key Control (+/-): Adjusts the musical key without changing tempo (use sparingly; above 3% introduces digital artifacts).

    • You must tell the software which outputs to use for the speakers and headphones.

    Connect the supplied AC power adapter to the unit and a wall outlet. Ensure the power switch (usually located on the rear or back panel) is in the OFF position before plugging in. If you are setting up the Scratch 2500

    The manual warns against turning on the system before connecting speakers. Here is the correct order:

  • Grounding (If using turntables): If you are connecting vinyl turntables to the "PHONO" inputs, attach the ground wire to the "GND" screw terminal next to the inputs. Omit this step, and you will hear a loud buzz.
  • Power On Sequence: Turn all volume knobs to zero (counter-clockwise). Turn on the main unit first, then turn on the source devices (CD players/laptop). Finally, turn up the master volume.

    • Issue: No Sound from Speakers

    Issue: Headphones are too quiet

    Issue: Jog Wheels Are Too Sensitive

    Issue: Crossfader Bleed