Two-Rock Tube Buffered Effects Loop Interface

The Two-Rock Effects Loop Interface is an effective tool when using outboard effects with any guitar amp that has a passive effects loop with a preamp output and power amp input jack. The buffered interface eliminates the insertion signal loss of effects chains by eliminating impedance mismatches created by various outboard effects units. In addition, compensation for hi frequency signal loss resulting from multiple effects being daisy-chained as well as long cable runs can be implemented.

Signal Processing
There are 2 main sections to the Effects Loop Interface. The first stage consists of a high impedance 12AX7 vacuum tube buffer with a +20dB signal increase capability as well as a high frequency boost via a bright switch if desired. The signal is then fed to your effects chain.

The signal returning to the unit is processed by a second buffered tube stage with controllable signal level attenuation and an additional bright switch. Virtually any combination of effects, even with long cable runs, can benefit from the correct application of this interface. 

Specs
Individual Send and Return Controls
Bright Switches for both Send & Return Controls
Tube Buffered
Tube: 1 X 12AX7
Dimensions & Weight:  8 1/2" x 7",  3.5 lbs