• The JDI Duplex pedal is in mint condition and has barely been used and has never left the studio
• The JDI Duplex uses a Jensen transformer that delivers optimum audio performance offering outstanding linearity at all frequencies, combined with extraordinary level handling without introducing distortion.

The Input panel features:

• 1/4" instrument inputs and traditional thru-puts.
• An innovative 'merge' function - Allows the thru-put to be converted to a second input to allow stereo to mono summing - Used to interface stereo sources such as keyboards or CD players in live shows where audio channels may not always be plentiful.
• -15dB pad to interface with higher output levels. - Selectable

The Output panel features:

• Balanced 600-ohm XLR connectors with pin-2 hot following the AES specification.  A polarity reverse switch toggles pin-2 and pin-3 to allow the JDI to interface with older non-AES equipment and for creative tinkering.
• The ground lift switch disconnects the XLR pin-1 ground from the JDI for 100% input-to-output isolation.
• A second -30dB pad may be engaged that, when used in tandem with the -15dB input pad, allows the JDI to be connected in parallel with a speaker. -
• This, for instance, allows the engineer to 'tap' the sound coming from a guitar amplifier speaker 'post distortion' thus adding another creative dimension. This unique function incorporates a speaker emulation filter circuit that rolls off highs and lows to more closely approximate the sound of a 12" driver.

Features:

• Welded I-beam construction makes it impossible to torque the PC board. This virtually eliminates cold solder joints - the No.1 cause of system failure in the field.
• Innovative 'slide-in-place' XLR trace makes it possible to use I-Beam girder construction.
• Jensen transformer for distortion-free performance.
• Military-grade PC board is employed for maximum wear and tear in abusive environments. Welded steel standoffs ensure the PC board will not shift.
• -15dB pad allows super hot inputs such as that from a CD player to be connected and balanced for long runs.
• Merge function turns the input and thru into a passive mixer to sum stereo feeds to mono at the XLR output. This saves valuable inputs on the mixer!
• Input connects to the instrument.
• Thru-put is connected to the instrument amplifier. The JDI has a high input impedance to reduce loading.
• Book-end design creates a protective zone around the switches & connectors for best protection!
• Heavy-duty baked enamel finish for excellent durability and great looks for years! 100% 14-gauge steel construction.
• XLR balanced mic level output provides 100% isolation for runs to 1000 feet without appreciable noise.
• Polarity reverse switch flips the polarity from the AES standard Pin-2 to Pin-3 on the XLR and is used when combining sounds that may be out of phase.
• Ground-lift disconnects the ground path to the transformer at the XLR output. This is used when a ground path is made at the input side such as with a keyboard.
• Parallel speaker interface option introduces a second -30dB pad with band-pass filter to emulate a 12" guitar speaker.oNo-slip full bottom pad reduces mechanical vibration, improves electrical isolation and keeps the JDI from moving around on busy stages!