Developed for professional applications in the fields of studio recording, stage performance, TV/broadcast, and live event, the Palmer wipper is a single-channel DI box used to preserve audio quality when connecting the unbalanced output of an instrument to the balanced input of a mixing desk or PA. Featuring a passive design that requires no battery or phantom power, the wipper is particularly well suited for active instruments, often recognizable in that they have a battery compartment (such as active electric/acoustic guitars, electric guitars, and electric basses) or are mains-powered (such as a keyboard). It can also be used to connect speaker outputs from guitar amplifiers to balanced mixer inputs or audio interfaces.
With its high-quality transformer, the wipper can handle high levels without distorting or losing the original sound of your instrument. At the same time, galvanic isolation prevents ground-loop hum, so that the signal remains pure, clear and ultralow noise, without any interference—even when transmitted over long cable runs. Thanks to a switchable 30 dB pre-attenuation, the wipper can also be looped in between the amplifier output and the loudspeaker. The unit is virtually indestructible thanks to its rugged, aluminum and steel casing.
- Balancing and impedance matching for active guitar, bass, keyboards, and synthesizers
- Eliminates ground-loop hum thanks to galvanic transformer isolation
- XLR-M balanced output
- 1/4" TS unbalanced instrument input jack
- 1/4" TS unbalanced THRU-output for passing the input signal to the amplifier
- THRU-output jack can also be used as second input to sum two input signals
- Extremely fail-safe, no power supply required
- Pure and unaltered low-noise audio
- Handles high-level inputs without distortion
- Switchable 30 dB pad for extremely high input levels (e.g. amplifier output)
- Solid casing made of aluminum and steel
- Includes rewritable tour label for attachment onto the back of the wipper
- River-Series DI engineered in Germany with high-precision circuits