Single channel discrete filter bank for the 500 Series with API 2520 and 2510 Op-Amps
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.
Features
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
Specifications
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
