API 505

500 Series direct input (DI) module


£470.83 Price excludes VAT

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The API 505 is a 500 Series direct input (DI) module for API lunchbox racks. Based on the design of the API 205L, the 505-DI is optimised for use as a direct input for guitar, bass or keyboard while minimising any loading effect on Hi-Z instrument pickups. The gain control featured on the 505-DI’s acts to normalise an instrument’s input level, up to a +4 dBu output level.

A Tone control knob is also provided to reduce potential low end mud in the signal, while a Bright switch adds clarity. The 505-DI is capable of boosting any instrument to a substantial line level without additional amplifiers. The 100K / 400K Load switch allows the tone of the high frequency content to be altered slightly. A 20 dB Pad is offered to drop the level without loading.

Key Features

  • Wide Range Gain Control with 55dB of gain
  • Front Panel Hi-Z Input
  • Front Panel Thru routing
  • TONE Control helps customize your sound
  • BRIGHT Switch boosts clarity and presence
  • 10 segment LED VU meter for monitoring output level
  • Peak Output LED Indicator
  • 20 dB pad switch
  • 100K / 400K Switchable Load
  • Traditional API fully discrete circuit design
  • Uses the famous API 2520 and 2510 Op-Amps


Datasheet (41.94 KB)