New Gear Review: API 565 Filterbank Module

API_565_lThe API 565 filter bank module is a new 500-series module that fits the company’s consoles, API Lunchbox® as well as the API 1608 small-format analog console. The 565 has the same circuit as the 215 module found in API's large format consoles.

I found the 565 incredibly useful with its two overlapping and continuously adjustable low and high pass filters. The low-pass filter section ranges from 500Hz to 20kHz using a switchable, -12 or -18dB slope. The high-pass filter sweeps from 20Hz to 400Hz and is also switchable between a smooth -6 or -12dB slope. Both the high and low pass filters have separate bypass switches.

The variable notch filter’s operation is divided into three ranges using a toggle switch and goes from 20Hz to 20kHz. This semi-parametric notch filter is an extremely handy problem solver during both recording and mixing. The API 565 Filterbank module sells for $595.


Barry Rudolph is a recording engineer/mixer who has worked on over 30 gold and platinum records. He has recorded and/or mixed Lynyrd Skynyrd, Hall & Oates, Pat Benatar, Rod Stewart, the Corrs, and more. Barry has his own futuristic music mixing facility and loves teaching audio engineering at Musician’s Institute, Hollywood, CA. He is a lifetime Grammy-voting member of NARAS and a contributing editor for Mix Magazine. http://barryrudolph.com