Boat Anchor Audio is offering two new audio filters designed for the DIY audiophile or experimenter.
The first of these is our custom configured 10-band single channel bandpass audio filter PCB. This filter is strictly analog in design and is based on the reliable TL074 op amp. More info here.
Our second PCB is a Universal Audio Filter also based on the TL074 chip and allows a low-pass filter, high-pass filter and band-pass filter using one chip. Both Q, gain and frequency are adjustable. More info here.
Both boards come fully assembled, tested and ready for use.