Preamps & Buffers for Your DIY Stereo & Home Theatre

This input buffer is intended for use with the Purifi 1ET400A and Hypex NC500 Class D amplifier modules. Unlike other buffers, including the Purifi...

The Universal Buffer is a two-channel (stereo) buffer, which can be configured to provide any of the following functions: Single-ended (unbalanced...

The Input Selector is a relay-based input selector which supports the selection of one of up to six stereo inputs. It can be used as a passive prea...

The Selector Switch & Volume Control is a two-part circuit board intended for use with the Input Selector. It is sold as a panel and consists o...

The Differential Volume Control PCB is intended for use with a 4-gang ALPS RK271-series, "Blue Velvet" volume pot to form a fully differential (bal...