Palmer wipper Passive DI Box

If you need to pick up the pure sound of your guitar, bass or keyboard, you need a high-quality DI-Box which does not alter the natural sound or add any noise.

The Palmer wipper is a single channel passive DI box with a high-quality transformer, which also handles high levels without distorting or losing the pure sound of your instrument. With a ratio of 10:1, it can be used for optimal impedance and level adjustment to connect instrument signals from guitars, bass, keyboards or synthesizers to a balanced microphone input. At the same time galvanic isolation prevents ground loop hum, so that the signal remains pure, clear and ultra-low noise, without any interference. Thanks to a switchable 30 dB pre-attenuation, the wipper can also be looped in between amplifier output and the loudspeaker.

The Palmer wipper is an easy-to-use problem solver. Its passive construction means it does not need any batteries or a phantom power. This makes it extremely fail-safe and also virtually indestructible thanks to its aluminum and steel casing. With its ability to retain the natural sound of your instrument, it also cuts a fine figure studio and live environments. This way you can simply be true to your sound.

Key Features

• Balancing and impedance matching for guitar, bass, keyboards & synthesizers
• Eliminates ground loop hum thanks to galvanic transformer isolation
• Extremely fail-safe, no power supply required
• 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
• Pure and unaltered low-noise audio
• Handles even 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
• Incl. rewritable tour label for attachment onto the back of the wipper
• Engineered in Germany

Technical Specifications

Product type
DI box
Type
passive
Channels
1
Transformer isolated
yes
Inputs
2
Input type
unbalanced
Input connectors
6.3 mm jack
Outputs
1
Output type
balanced
Output connectors
XLR
THRU outputs per channel
1
Input attenuation (Pad)
0 / 30 dB
Ground lift switch
Yes
Additional Features
mono merge
Housing
Aluminum continuous casting
Dimensions (W x H x D)
50 x 140 x 68 mm
Weight
0,43 kg
Ambient temperature (in operation)
- 20 - 70 °C
Relative Humidity
< 80% (non-condensing)
Accessories (included)
Inscription label (tour label), rubber feet
Audio
Max. input level (< 1% THD, 20 Hz)
+24 dBu
Max. input level (< 1% THD, 1 kHz)
+32 dBu dBu
Frequency response (±0,2dB, relative 1kHz)
10 Hz - 60 kHz Hz
Input impedance (1 kHz, Setting: 0 dB Pad, THRU)
47 kOhm
Output impedance (1 kHz, Setting: 0 dB Pad, THRU)
33 Ohm
THD (30 Hz, +4 dBu, unity, unweighted)
< 0,02 %
THD (1 kHz, +4 dBu, unity, unweighted)
< 0,0007 %
IMD (SMPTE) (60 Hz / 7 kHz, 4:1, +4 dBu)
< 0,002 %
Transformer ratio
10: 1