The API 565 Discrete Filter Bank Delivers the Filtering Circuitry of Large Consoles in an Accessible 500 Series Package 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 (500 Hz to 20 kHz, -6 or -12 dB slope) Sweepable high-pass filter (20 Hz to 400 Hz, -12 or -18 dB slope) Variable notch filter with adjustable Q (fully sweepable between 20 Hz and 20 kHz) 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: 500 Hz to 20 kHz High Pass: 20 Hz to 600 Hz Notch: 20 Hz to 20 kHz (3 selectable ranges) Notch Filter Q: Variable from 0.95 to 15.3 Notch Filter Cut: Greater than 40 dB at minimum Q setting Input Impedance: Greater than 20 kOhms, Balanced Output Impedance: 75 Ohms, Transformer Coupled, Balanced Nominal Levels: -15 dBu to +15 dBu Clipping Level: +28 dBu Frequency Response: +.2, -.4, 20 Hz to 20 kHz THD+N: 0.02% (+4 dBu output @ 2 kHz) Connector: 15 position .156-inch sp. edge connector Power Consumption: +/-16VDC, 100mA max at +24 dBu out Size: 1.5 x 5.25 x 6.75 inches / 38 x 133 x 171 mm Manufacturer: Automated Processes IncModel: 565SKU: I384065-N-0-WHXBWe are Chuck Levin's Washington Music CenterSince 1958, Chuck Levin’s Washington Music Center has been the trusted destination for musicians and audio professionals across Maryland, Virginia, and Washington, D.C. Family-owned and operated, our legendary music store delivers Everything in Music®—from instruments and recording gear to pro audio, rentals, and repair services.Our team of musicians and industry experts lives and breathes gear, helping you build the perfect setup for your next performance, studio session, or installation. As an authorized dealer for top brands, we also offer our award-winning CHUCKSCLUSIVE line—exclusive, limited-edition instruments and collaborations recognized with the NAMM Top 100 Dealer Innovation Award for redefining what a music retail experience can be.Chuck Levin’s isn’t just a store—it’s a community built by players, engineers, and creators who share a lifelong passion for sound. Stop by our legendary Wheaton, MD showroom or contact us anytime for expert advice, product questions, or the best possible deal on your next piece of gear.
