Palmer Trave Re-Amplification Box
Introduction
The Palmer Trave Re-Amplification Box is a high-quality solution equipped with 6.3 mm jack sockets on the input and output sides, operable with both balanced and unbalanced cables. Thanks to galvanic isolation via a high-quality transformer, hum loops are reliably eliminated. This line isolation box is perfect for balancing audio signals and allows long cable runs without introducing noise or interference. For detailed setup and operation, you can refer to the Palmer Wupper Line Isolation Box Instruction Manual.
Safety Instructions
- Please read these instructions carefully before using your Palmer Trave Re-Amplification Box.
- Keep all information and instructions in a safe place.
- Follow the instructions.
- Use the device in the prescribed manner only.
- Do not open the device and do not perform any modifications.
Packaging
- Packaging can be fed into the reusable material cycle using the usual disposal methods.
- Please separate the packaging in accordance with disposal laws and recycling regulations in your country.
Device
- The Palmer Trave Re-Amplification Box is subject to the European Waste Electrical and Electronic Equipment Directive in the currently valid version.
- WEEE Waste Electrical and Electronic Equipment Directive. Old appliances do not belong in household waste.
- The Palmer Trave Re-Amplification Box must be disposed of via an approved disposal company or a municipal disposal facility.
- Please observe the applicable regulations in your country!
- Observe all disposal laws applicable in your country.
- As a private customer, you can obtain information on environmentally friendly disposal options from the seller of the product or the appropriate regional authorities.
Batteries
- Observe all disposal laws applicable in your country.
- As a private customer, you can obtain information on environmentally friendly disposal options from the seller of the product or through the relevant regional authorities.
The product is not suitable for
- Persons (including children) with limited physical, sensory, or mental abilities or a lack of experience and knowledge.
- Children (children must be instructed not to play with the device)
Connections
- INPUT
Line input with 6a.3 mm jack socket suitable for both unbalanced and balanced cabling. Use a shielded audio cable to connect, for example, a keyboard to the Line Isolation Box. - OUTPUT
Line output with a 6.3 mm jack socket suitable for both unbalanced and balanced cabling. Use a shielded audio cable to connect the Line Isolation Box to an input of a mixer or audio interface.
Wiring Example

Technical Data
| Product number | PWUPPER |
| Product type | Line Isolator |
| No. of channels | 1 |
| Type | passive |
| Transformer isolated | yes |
| No. of inputs | 1 |
| Input type | symmetrical/asymmetrical |
| Input connections | 6.3 mm jack |
| No. of outputs | 1 |
| Output type | symmetrical/asymmetrical |
| Output connections | 6.3 mm jack |
| Ground/lift switch | no |
| Housing | Aluminium continuous casting |
| Dimensions (H/W/D) | 110 x 50 x 50 mm |
| Weight | 0.3 kg |
| Ambient temperature for operation | -20°C…70°C |
| Relative air humidity | <80%, non-condensing |
| Included accessories AUDIO | Rubber feet, inscription label |
| Max. Input level (< 1% THD, 20 Hz) | +10 dBu |
| Max. Input level (< 1% THD, 1 kHz) | +32 dBu |
| Frequency response (±2dB, relative 1kHz) | 20 Hz – 20 kHz |
| Input impedance (1 kHz) | 17 kΩ |
| Output impedance (1 kHz) | 500 Ω |
| THD (30 Hz, +4 dBu, unity, unweighted) | < 0.09 % |
| THD (1 kHz, +4 dBu, unity, unweighted) | < 0.002 % |
| IMD (SMPTE) (60 Hz / 7 kHz, 4:1, +4 dBu) | < 0.002 % |
| Transformer ratio | 1:1 |
Manufacturer’s Declarations
Warranty & Liability: Adam Hall GmbH provides the manufacturer’s warranty and limitation of liability for the Palmer Wupper Line Isolation Box, located at Adam-Hall-Str. 1, 61627 Neu-Anspach, Germany.
CE Conformity
Adam Hall GmbH confirms that the Palmer Wupper Line Isolation Box meets applicable guidelines, including the Low-Voltage Directive (2014/35/EU), EMC Directive (2014/30/EU), RoHS (2011/65/EU), and RED (2014/53/EU).
FCC Statement
This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) This device must accept any interference received, including interference that may cause undesired operation.
UKCA- Conformity
Hereby, Adam Hall Ltd. declares that Palmer Naab 2-Kanal Media DI-Bo,x this product, Palmer Pan16 19“ DI-bo,x meets the following guidelines (where applicable): Electrical Equipment (Safety) Regulations 2016, Electromagnetic Compatibility Regulations 2016 (SI 2016/1091). The Restriction of the Use of Certain Palmer Pan16 19“ DI-box Hazardous Substances in Electrical and Electronic Equipment Regulation 2012 (SI 2012/),32,) Radio Equipment Regulations 2017 (SI 2016/2015), Adam Hall Ltd. | The Seedbed Bus. Centre | SS3 9QY Essex | UK
Customer Support
- Email: Info@adamhall.com
- Website: www.adamhall.com/compliance
- Ph: +49 (0)6081 / 9419-0
FAQs
Q: What is the Palmer Trave Re-Amplification Box used for?
The purpose of the Trave Re-Amplification Box is to improve and preserve the audio sources’ signal quality over extended wire runs. For live performances, recording settings, or studio use, it guarantees crisp, steady audio levels.
Q: Does the device require external power?
Indeed, as stated in the handbook, the Palmer Trave Box needs a normal power supply, usually via an accompanying power adapter or a conventional mains connection.
Q: Can I use it with passive DI boxes?
In order to re-amplify and sustain signal strength over longer cable lines, it does indeed function effectively when combined with passive or active DI boxes.
Q: What is the maximum cable length supported without signal degradation?
Depending on cable quality and source impedance, the device can adjust for long cable runs, usually up to 50 meters (164 feet) or more.
Q: Does the Palmer Trave Box affect tone or sound quality?
No, to avoid losing high frequencies or signal clarity, it is made to maintain the original tone while boosting the signal.
Q: Can I adjust the output level?
In order to tailor the signal to your amplifier, mixer, or recording system, the gadget does indeed have adjustable output controls.
Q: Is the Trave Box suitable for both live and studio use?
Yes, it offers reliable and clear signal transfer, making it perfect for live sound reinforcement, studio recording, and re-amping situations.
Q: What types of connectors does the Trave Box use?
Depending on the model, it usually employs TS, 1/4″ TRS, or XLR connections. For precise connector types and input/output choices, consult the handbook.





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