The BF-1 is an all-purpose interface for any instrument with a pickup that enhances clarity, detail, audibility and dynamics whether used between the instrument and amp, the instrument and a PA or recording device or all of these at the same time. Whatever you plug into it just sounds better. This..
Building on the circuitry of the SmallDI, the IsoDI adds two optional isolation stages.
The main signal path is still a clean, wide bandwidth transformerless FET amplifier, but the power is generated with an isolated DC to DC converter so that you can have true ground isolation and still run the Is..
The IsoGtr expands on our circuitry of the IsoDI by adding 3 additional transformer isolated instrument outputs to serve as an isolated signal splitter for sending your guitar or instrument signal to up to 4 amplifiers or effects chains (3 transformer isolated + 1 Buffered Main Output), our same ult..
The D.W. Fearn LP-1 Line Pad is a two-channel accessory for use with the VT-1 or VT-2 Vacuum Tube Microphone Preamplifiers. It is simply a high-quality bridging-type pad that accepts line-level inputs (+4 dBm nominal) and produces a mic level output. The actual pad loss is 45 dB. When used in conjun..
As a lower-cost alternative to the D.W. Fearn VT-3 Vacuum Tube DI, we have the Passive Direct Box. This single-channel DI uses the top-of-the-line Jensen direct box transformer in a heavy-duty steel box, finished with the same high-quality paint as the other D.W. Fearn products.
It features dual ..
History of the Sigma DI
In 1967, before stock consoles and turn key studios, I and some believers, wire by wire, component by component built Sigmas first studio. Primitive by todays standards the console had just 12 inputs that fed a then state of the art 8 track tape machine. It was then that I b..
This phantom powered active DI is the perfect instrument interface. It transparently passes the sound of your instrument to the preamp without adding its own sound.The Small DI has a very high impedance input FET buffer inside designed for wide bandwidth and clean reproduction. The buffer circuit ru..