Isolated ABY Switcher (active / buffered)

Isolated ABY Switcher, splitter
 Avoid ground loop noise. Suitable for both bass and guitar.
This ABY Splitter offers two equal outputs A,B. Output-B is isolated using an audio transformer in order to help you avoid ground loops when using two amps simultaneously. The isolation is applied when the Ground Lift switch is engaged. To avoid phasing problems when using two amps there is also a Phase Reverse switch (0° /180°) available for output-B which reverses the phase of your signal if required.

The A/B-footswitch allows you to choose your active output (A or B) while the Y-footswitch when engaged it activates both channels at once. The switching between channels is totally silent and pop-free. The input stage is buffered with high impedance JFET opamps in order to pickup your instrument's signal the best way possible without affecting your tone.
The audio trasformer has a flat response from 20Hz to 20kHz so that it doesn't distort your signal. The output impedance is very low in order to suitably drive any amp or similar device.

▹Voltage Required: DC 9-18 Volt (using 12-18V gives you more headroom)
[Do not exceed recommended voltage! It may damage the circuit.]
▹ Max Current draw: 5mA @ 9V
▹ Input impedance: 1MΩ  (it can be set higher if you request it)
▹ Output impedance: 100Ω
▹ Enclosure dimensions: 114 x 60  x 32 mm (4.43 x 2.38 x 1.22 in)