Palmer ILM speaker simulation DI-box
Introduction
The Palmer ILM Speaker Simulation DI-Box is designed to deliver clean, balanced audio signals, similar to other high-quality DI solutions like the Palmer KYLL 2-Kanal Line Isolation Box. It features 6.3 mm jack sockets on the input and output sides, which can be used both balanced and unbalanced. With high-quality transformer-based galvanic isolation, hum loops are reliably eliminated. This DI-box is perfect for balancing audio signals and transmitting them over long cable runs without interference.
Safety Instructions
- Please read these instructions carefully before using the Palmer ILM Speaker Simulation DI-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
- This device 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 old device 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.
For simpler setups, a single-channel alternative such as the Palmer Iller 1-Kanal Line Isolation Box can be used for balancing and transmitting audio signals over long cable runs.

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
Herstellergarantie und Haftungsbeschränkung Manufacturer’s warranty & limitation of liability Adam Hall GmbH Adam-Hall-Str. 1 61627 Neu-Anspach, Germany.
CE Conformity
Adam Hall GmbH hereby confirms that this product, Palmer Pan16 19“ DI-bo,x meets the following guidelines (where applicable): Low-Voltage Directive (2014/35/EU), EMC Directive (2014/30/E/U), RoHS (2011/65/EU), 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


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