Vils - Audio Equipment Palmer - Free user manual and instructions

Product type	Passive 1-channel line isolation summing box
Brand	Palmer
Model	Vils
Category	Line isolator
Number of channels	1
Circuit type	Passive with audio transformer
Inputs	2 unbalanced Cinch (stereo) inputs
Outputs	1 balanced XLR male 3-pin output
Features	Stereo to mono summing, galvanic isolation, ground lift switch
Max input level (20 Hz, <1% THD)	+12 dBu
Max input level (1 kHz, <1% THD)	+32 dBu
Frequency response	20 Hz – 30 kHz (±0.2 dB relative to 1 kHz)
Input impedance (1 kHz)	2.7 kΩ
Output impedance (1 kHz)	600 Ω
THD (30 Hz, +4 dBu)	< 0.08 %
THD (1 kHz, +4 dBu)	< 0.003 %
IMD (SMPTE, 60 Hz/7 kHz, 4:1, +4 dBu)	< 0.002 %
Turns ratio	1:1
Housing material	Continuous cast aluminum
Dimensions (H x W x D)	140 x 50 x 68 mm
Weight	0.385 kg
Operating temperature	-20 °C to 70 °C
Relative humidity	< 80 % (non-condensing)
Included accessories	Rubber feet, marking label (tour label)
Manufacturer warranty	Check terms on Adam Hall website
Care and cleaning	Clean with a dry cloth, do not use solvents. Protect from moisture and strong magnetic fields.
Safety instructions	Do not open or modify the device. Do not use by unqualified persons. Keep out of reach of children (choking hazard from small parts).
Disposal	Do not dispose with household waste. Follow local WEEE regulations. Separate packaging and recycle.

Frequently Asked Questions - Vils Palmer

How to connect the Palmer Vils to a mixing console?

Use the Cinch inputs to connect a stereo source (e.g., computer) and the XLR output to a balanced input of the console. Ensure the channels are muted during connection to avoid noise.

What is the purpose of the ground lift switch?

The LIFT/GND switch allows disconnecting or maintaining the ground connection. In the non-depressed position (Lift), the ground connection is cut, which can eliminate ground loops and hum.

What type of cable to use for the output?

Use a balanced audio cable (microphone cable) with 3-pin XLR connectors to connect the output to the balanced input of the console or audio interface.

Does the Palmer Vils require power?

No, the unit is passive and does not require any external power. The integrated transformer provides isolation and impedance matching without a power source.

What is the maximum acceptable input level?

The maximum input level before distortion (THD < 1 %) is +12 dBu at 20 Hz and +32 dBu at 1 kHz.

Can the Palmer Vils be used with an unbalanced cable at the output?

The output is designed for a balanced XLR cable. Using an unbalanced cable would degrade common-mode rejection and could introduce noise. It is recommended to use a balanced cable.

How to avoid parasitic hum?

Use the ground lift switch to break the ground loop. Also ensure cables are shielded and the device is kept away from strong magnetic fields (e.g., transformers).

What is the intended use of the Palmer Vils?

It is designed for professional use in event technology, studio, TV, and broadcasting. It allows connecting unbalanced sources (computers, sound cards) to balanced consoles with galvanic isolation.

Can the Palmer Vils be used indoors?

It is designed for professional use, not domestic use. It must be used by qualified persons under the specified conditions (temperature -20°C to 70°C, humidity < 80%).

How to clean and maintain the device?

Clean the device with a dry cloth. Do not use solvents or abrasive cleaners. Protect the device from moisture and strong magnetic fields to prevent malfunction.

USER MANUAL Vils Palmer

be true to your sound

channel merge line isolation box passive vils Palmer®

years

guarantee

channel merge line isolation box passive

vils

channel merge line isolation box passive

channel merge line isolation box passive

Two black electronic devices with labeled ports and indicators, shown from front and side views (no text or symbols on the device itself)

graph LR
    A["Laptop"] -->|UNBALANCED STEREO INPUT L R| B["Channel Merge Line Isolation Box"]
    B --> C["BALANCED MONO OUTPUT"]
    C --> D["Output with repeating units"]

graph LR
    A["UNBALANCED STEREO INPUT"] --> B["INPUT"]
    B --> C["channel merge line isolation box passive"]
    C --> D["OUTPUT"]
    D --> E["MERGED BALANCED OUTPUT, NO GROUND LOOP HUM"]
    style A fill:#f9f,stroke:#333
    style E fill:#ccf,stroke:#333

TECHNISCHE DATEN

ALLGEMEIN

ENTSORGUNG

VERPACKUNG:

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

Let your signals flow, naturally and powerfully like a river! The River Series embodies this claim down to the last detail: Featuring high-precision circuits, designed by our award-winning engineers to ensure your sound reaches its destination – the hearts of your listeners.

That's exactly what Palmer® stands for. We have been manufacturing audio tools for professional use on stage, in broadcasting and in the studio since 1980. Musicians and sound engineers around the world value our solutions developed in Germany for their unhindered signal flow and pure sound - as crystal clear and vibrant as water! So what was more logical than naming the River Series models after German rivers?

On the map of Germany you can see where the Vils flows: 69 kilometres through Bavaria. Thank you for purchasing the vils! We hope you enjoy this piece of German engineering. Be true to your sound!

Yours, the Palmer Team

vils

channel merge line isolation box passive

INTENDED USE

This product is a device for event technology, as well as studio, TV and broadcast!

This product has been developed for professional use in the field of event technology, studio, TV and broadcast.

It is not suitable for household use!

Furthermore, this product is only intended for qualified users with specialist knowledge of event technology, as well as studio, TV and broadcast!

Use of the product outside the specified technical data and operating conditions is considered inappropriate! Liability for damage and third-party damage to persons and property due to inappropriate use is excluded!

This product is not suitable for:

▶ Persons (including children) with limited physical, sensory or mental abilities or lack of experience and knowledge.
Children (children must be instructed not to play with the device).

SAFETY INSTRUCTIONS

1. Please read these instructions carefully.
2. Keep all information and instructions in a safe place.
3. Follow the instructions.
4. Use the device in the prescribed manner only.
5. Do not open the device and do not perform any modifications.

CHOKING HAZARD! KEEP OUT OF THE REACH OF CHILDREN! THE PRODUCT CONTAINS SMALL PARTS AND PACKAGING MATERIAL THAT CAN BE SWALLOWED! PLASTIC BAGS MUST BE KEPT OUT OF THE REACH OF CHILDREN!

INTRODUCTION

Equipped with cinch inputs and a balanced 3-pin XLR output, the passive line isolation box vils is specially designed for connecting notebooks and sound cards to professional mixers. The stereo signal coming from the playback device is summed to mono internally via a resistor network then impendance matching and signal balancing are achieved by a high quality audio transformer especially designed for the unit. Using the ground lift switch to disconnect the ground connection from the input and output can eliminate noise such as hum loops.

vils

channel merge line isolation box passive

Close-up of a black rectangular device with a central circular lens and three small buttons, labeled '3' (no readable text or symbols beyond labels)

LIFT GND 1 2 1

CONNECTIONS AND OPERATING ELEMENTS

1. INPUT LEFT/RIGHT

Unbalanced stereo line input with two RCA (cinch) sockets. Use a shielded stereo audio cable, for example, to connect a notebook to the line isolation box.

2. LIFT/GND

Switch for disconnecting the ground connection from the input and output (ground lift). In the non-pressed position, the ground connection is disconnected; the connection is established when the switch is pressed. The ability to prevent a humming loop using the ground lift switch depends on the grounding of the connected device. It is therefore possible that both one and the other switch position is able to effectively reduce or eliminate humming.

3. OUTPUT

Balanced mono output with male 3-pin XLR socket. Use a balanced audio cable (microphone cable) to connect the line isolation box to a balanced audio input on a mixer or audio interface.

ATTENTION: Connecting signal cables can cause a lot of noise. Make sure that input channels from mixers and audio interfaces etc. are muted during plugging. Otherwise, noise levels may cause damage.

PLEASE NOTE: Strong magnetic fields can cause humming. Therefore, do not position the Line Isolation Box near strong magnetic fields (e.g. mains transformer).

TECHNICAL DATA

GENERAL

Product number PVILS
Product type Line isolator
No. of channels 1
Type passive
Transformer isolated Yes
No. of inputs 2
Input type unbalanced
Input connections Cinch
No. of outputs 1
Output type balanced
Output connections XLR
Ground/lift switch Yes
Housing	Aluminium continuous casting
Dimensions (H/W/D)	140 x 50 x 68 mm
Weight	0.385 kg
Ambient temperature for operation	-20°C...70°C
Relative air humidity	<80%, non-condensing
Included accessories	Rubber feet, label (tour label)
AUDIO
Max. input level (<1% THD, 20 Hz)	+12 dBu
Max. input level (< 1% THD, 1 kHz)	+32 dBu
Frequency response (±0.2 dB, relative 1 kHz)	20 Hz-30 kHz
Input impedance (1 kHz)	2.7 kΩ
Output impedance (1 kHz)	600 Ω
THD (30 Hz, +4 dBu, unity, unweighted)	< 0.08%
THD (1 kHz, +4 dBu, unity, unweighted)	< 0.003%
IMD (SMPTE) (60 Hz/7 kHz, 4:1, +4 dBu)	< 0.002%
Transformer ratio	1:1

All measurements were taken with a generator with 600 Ω output impedance (incl. open inputs) and 1 kΩ balanced load.

DISPOSAL

PACKAGING:

1. Packaging can be fed into the reusable material cycle using the usual disposal methods.
2. Please separate the packaging in accordance with disposal laws and recycling regulations in your country.

DEVICE:

1. 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!
2. Observe all disposal laws applicable in your country.
3. 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:

1. Batteries should not be disposed of in household waste. Batteries and rechargeable batteries must be disposed of via an approved disposal company or a municipal disposal facility.
2. Observe all disposal laws applicable in your country.
3. 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.
4. Devices with batteries that cannot be removed by the user must be taken to a collection point for electrical appliances.

MANUFACTURER'S DECLARATIONS

Manufacturer's warranty & limitation of liability

Adam Hall GmbH

Adam-Hall-Str. 1

61627, Neu-Anspach, Germany

Email: [e-mail] / +49 (0)6081 / 9419-0.

Our current warranty conditions and limitation of liability can be found at: https://cdn-shop.adamhall.com/media/pdf/Manufacturers-Declarations-PALMER_DE_EN_ES_FR.pdf

Contact your distribution partner for service.

CE CONFORMITY

Adam Hall GmbH hereby confirm that this product meets the following guidelines (where applicable):

Low-Voltage Directive (2014/35/EU)

EMC Directive (2014/30/EU)

RoHS (2011/65/EU)

RED (2014/53/EU)

EC DECLARATION OF CONFORMITY

Declarations of conformity for products that are subject to the LVD, EMC, RoHS Directives, can be requested at [e-mail].

Declarations of conformity for products that are subject to the RED Directive

can be downloaded at www.adamhall.com/compliance/

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

SUBJECT TO MISPRINTS AND ERRORS, AS WELL AS TECHNICAL OR OTHER MODIFICATIONS!

FRANKFURT vils

Two black electronic devices with labeled ports and indicators, shown from front and side views (no text or symbols on the device bodies)

CONNESSIONI ED ELEMENTI DI COMANDO

1. INPUT LEFT / RIGHT

graph LR
    A["Laptop"] -->|UNBALANCED STEREO INPUT L R| B["Channel with channel merge line isolation box passive"]
    B -->|BALANCED MONO OUTPUT| C["Output with vertical dot patterns"]

graph LR
    A["UNBALANCED STEREO INPUT"] --> B["INPUT"]
    B --> C["channel merge line isolation box passive"]
    C --> D["OUTPUT"]
    D --> E["MERGED BALANCED OUTPUT, NO GROUND LOOP HUM"]

DATI TECNICI

SMALTIMENTO

IMBALLAGGIO:

Two black electronic devices with labeled ports and indicators, shown from front and side views (no readable text or symbols beyond labels)

CONNECTEURS ET ÉLÉMENTS DE COMMANDE

1. INPUT LEFT / RIGHT

graph LR
    A["Laptop"] -->|UNBALANCED STEREO INPUT L R| B["Channel Merge"]
    B --> C["BALANCED MONO OUTPUT"]
    C --> D["Output with four vertical dot patterns"]

graph LR
    A["UNBALANCED STEREO INPUT"] --> B["INPUT"]
    B --> C["channel merge line isolation box passive"]
    C --> D["OUTPUT"]
    D --> E["MERGED BALANCED OUTPUT, NO GROUND LOOP HUM"]
    style A fill:#f9f,stroke:#333
    style E fill:#ccf,stroke:#333

CARACTÉRISTIQUES TECHNIQUES

GÉNÉRALITÉS

Référence PVILS

ÉLIMINATION

EMBALLAGE :

Directive CEM (2014/30/UE)

RoHS (2011/65/UE)

RED (2014/53/UE)

DÉCLARATION DE CONFORMITÉ CE

graph LR
    A["Laptop"] -->|UNBALANCED STEREO INPUT L R| B["Channel Merge Line Isolation Box"]
    B --> C["BALANCED MONO OUTPUT"]
    C --> D["Output with 100% markers"]

graph LR
    A["UNBALANCED STEREO INPUT"] --> B["INPUT"]
    B --> C["channel merge line isolation box passive"]
    C --> D["OUTPUT"]
    D --> E["MERGED BALANCED OUTPUT, NO GROUND LOOP HUM"]
    style A fill:#f9f,stroke:#333
    style E fill:#ccf,stroke:#333

DATOS TÉCNICOS

GENERALIDADES

ELIMINACIÓN

EMBALAJE:

https://cdn-shop.adamhall.com/media/pdf/Manufacturers-Declarations-PALMER_DE_EN_ES_FR.pdf

Be true to your sound

Zespół Palmer

vils

channel merge line isolation box pasywny

graph LR
    A["Laptop"] -->|UNBALANCED STEREO INPUT L R| B["Channel with channel merge line isolation box passive"]
    B -->|BALANCED MONO OUTPUT| C["Output with vertical dot patterns"]

graph LR
    A["UNBALANCED STEREO INPUT"] --> B["INPUT"]
    B --> C["channel merge line isolation box passive"]
    C --> D["OUTPUT"]
    D --> E["MERGED BALANCED OUTPUT, NO GROUND LOOP HUM"]

DANE TECHNICZNE

INFORMACJE OGÓLNE