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API 565

500 Series Discrete Filter Set

  • API 565

Price: $565.25

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Stock Item: Ships from our shelf quickly in almost all cases when ordered before our ship cutoff times.

Direct Ship: Non-stock item, but normally ships quickly from the manufacturer or alternate warehouse.

Built To Order: Item is custom built per the options chosen and quickly shipped out upon completion.

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Product Description

The 565 Filter Bank module has circuits that are true to the musical filters of the famed 215 module found in large format API consoles.


  • Sweepable low-pass filter (500Hz to 20kHz, -6 or -12dB slope)
  • Sweepable high-pass filter (20Hz to 400Hz, -12 or -18dB slope)
  • Variable notch filter with adjustable Q (fully sweepable between 20Hz and 20kHz)
  • Individual bypass switches for each filter section
  • Transformer Balanced Output to +28 dBu
  • Traditional API fully discrete circuit design
  • Uses API 2520 and 2510 Op-Amps as well as the same discrete transistor buffers used in the famous 550 series equalizers


  • Number of Bands: Three
  • Filter Types: Sweepable Shelf Low Pass
  • Sweepable Shelf High Pass
  • Adjustable Active Twin-T Notch
  • Filter Frequencies: Low Pass: 500Hz to 20kHz
  • High Pass: 20Hz to 600Hz
  • Notch: 20Hz to 20kHz (3 selectable ranges)
  • Notch Filter Q: Variable from 0.95 to 15.3
  • Notch Filter Cut: > 40dB at minimum Q setting
  • Input Impedance: > 20K Ohms, Balanced
  • Output Impedance: 75 Ohms, Transformer Coupled, Balanced
  • Nominal Levels: -15dBu to +15dBu
  • Clipping Level: +28dBu
  • Frequency Response: +.2, -.4, 20Hz to 20kHz
  • THD+N: 0.02% (+4dBu output @ 2kHz)
  • Connector: 15 position .156" sp. edge connector
  • Power Consumption: +/-16VDC, 100mA max at +24dBu out
  • Size: 1.5" x 5.25" x 6.75" Deep

Warranty Information

Our ONE WITH EVERYTHING ZEN WARRANTY extends the standard manufacturer warranty by one year, see our ZEN WARRANTY page for details.

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