RIVER ilm - Audio/video converter Palmer - Free user manual and instructions

Product Type	Passive DI Box with Speaker Simulator
Reference	PILM
Number of Channels	1
Circuit Type	Passive with Isolated Transformer
Input	6.3 mm unbalanced jack
Output	XLR male balanced
THRU Output	6.3 mm jack (unmodified signal)
Input Attenuation (Pad)	0 dB / 15 dB / 30 dB (switchable)
Tone Simulator	Bypass, Normal, Bright, Mellow (switchable)
Ground Lift	Yes (LIFT/GND switch)
Housing Material	Continuous cast aluminum
Dimensions (H x W x D)	140 x 50 x 68 mm
Weight	0.445 kg
Operating Temperature	-20 °C to 70 °C
Relative Humidity	< 80 % (non-condensing)
Included Accessories	Rubber feet, labeling sticker
Max. Input Level (20 Hz)	+12 dBu (< 1 % THD)
Max. Input Level (1 kHz)	+32 dBu (< 1 % THD)
Frequency Response	10 Hz – 60 kHz (±1 dB)
Input Impedance (1 kHz, Bypass, 0 dB Pad)	8.8 kΩ
Output Impedance (1 kHz, Bypass, 0 dB Pad)	125 Ω
THD (30 Hz, +4 dBu)	< 0.25 %
THD (1 kHz, +4 dBu)	< 0.009 %
IMD SMPTE (60 Hz/7 kHz, 4:1)	< 0.005 %
Transmission Ratio	1:5

Frequently Asked Questions - RIVER ilm Palmer

What types of audio signals can I connect to the INPUT input?

The INPUT input (6.3 mm jack) accepts a line signal from a guitar preamp or the speaker output of a guitar amplifier (max. 120 W at 8 Ω). Use a suitable shielded cable.

How to use the ATT attenuator?

The ATT button offers three attenuation levels: 0 dB (for line signal), 15 dB (amp up to 10 W) and 30 dB (amp between 10 and 120 W). Adjust it according to the source to avoid saturation.

What does the TONE switch do?

It selects the speaker simulation: BYPASS (raw signal), NORMAL (standard sound), BRIGHT (bright sound) and MELLOW (soft sound). Choose according to the desired sound.

What is the LIFT/GND switch for?

It cuts or maintains the ground connection between input and output to eliminate ground loops. Try both positions to reduce noise.

Can I use this device with a tube amplifier?

Yes, but be careful: the box offers no load resistance. You must connect a speaker or dummy load to the THRU jack to avoid damaging the amplifier.

What is the maximum power supported by the input?

The input accepts up to 120 W at 8 Ω from a guitar amplifier. Beyond that, the unit may be damaged.

How to connect the XLR output?

Use a balanced XLR cable to connect the output to a mic/line input of a mixer or audio interface. Ensure the channel is muted during connection to avoid parasitic noise.

Does the device require power supply?

No, it is a passive model: it operates without batteries or external power. The internal transformer provides isolation.

What to do in case of humming?

Try activating the ground lift (LIFT) and move the device away from strong magnetic fields (transformers, etc.). Also check cables and grounding.

How to clean the device?

Disconnect all cables. Clean the aluminum housing with a slightly damp soft cloth. Do not use solvents or abrasive products.

USER MANUAL RIVER ilm Palmer

be true to your sound

speaker simulation DI-box passive ilm Palmer®

5

years

guarantee

speaker simulation DI-box passive

ilm

speaker simulation DI-box passive

speaker simulation DI-box passive

LIFT GND 6 5 1 1 BYPASS 2 NORMAL 3 BRIGHT 4 MELLOW 0dB 15dB 30dB 1 2 3 4 ATN TONE 3 4

Ausgangsanschlüsse XLR

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 above you can see where the ilm flows: 129 kilometres through Thuringia.

Thank you for purchasing the ilm! We hope you enjoy this piece of German engineering.

Be true to your sound!

Yours, the Palmer Team

ilm

speaker simulation DI 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

The passive speaker simulation DI box ilm, especially for guitarists, is integrated between the effects device or guitar preamp or amplifier and mixer. Behind a preamp (line signal) or connected between an amplifier and loudspeaker, the Speaker Simulation DI box enables the direct input of guitar signals into the mixer without a microphone. An integrated filter circuit simulates the sound of the speaker required for authentic reproduction. The sound characteristics can be switched between "Bypass", "Normal", "Bright" and "Mellow".

ilm

speaker simulation DI box passive

LIFT GND 6 5 1 1 BYPASS 2 NORMAL 3 BRIGHT 4 MELLOW 2 0dB 15dB 30dB 1 2 3 4 ATN TONE 3 4

CONNECTIONS AND OPERATING ELEMENTS

1. INPUT

Audio input with 6.3 mm jack socket.

A. Connect a guitar preamp using a shielded line cable.
B. Connect the speaker output of a guitar amplifier using a speaker cable.

WARNING: Amplifiers must not be operated in bridge mode on the speaker simulation box

WARNING: If an amplifier is operated on the speaker simulation DI box, the ground ection between input and output must be separated (switch no. 6 in the non-pressed LIFT position).

WARNING: The amplifier output of a connected amplifier must not exceed 120 W at 8 ohms!

ATTENTION: CAUTION when using a tube amplifier: There is no load resistance in the speaker simulation box! To prevent damage to the amplifier, before switching on the amplifier, a suitable guitar loudspeaker or load resistor on the THRU jack socket must connected using a speaker cable!

2. THRU

The INPUT signal (INPUT) is output unchanged via the 6.3 mm jack socket THRU.

3. ATT = attenuator

Rotary switch for adjusting the output level. Recommendation:

Connecting a guitar preamp (line signal): 0 dB attenuation

Connection of an practice amplifier up to an output power of approx. 10 W: 15 dB attenuation

Connection of an amplifier over 10 W output power (max. 120 W @ 8 ohms): 30 dB attenuation

4. TONE

Rotary switch for setting the sound characteristics of the output signal.

1 BYPASS: Sound unchanged at time of input signal
2 NORMAL: Standard sound setting
3 BRIGHT: Bright sound
4 MELLOW: Soft sound

5. OUTPUT

Balanced audio output with a male 3-pin XLR socket. Use a balanced shielded cable (microphone cable) to connect the speaker simulation DI box to a balanced input of a mixer or audio interface.

6. LIFT/GND

Switch for disconnecting the ground connection from the input and output (ground lift). In the unpressed position, the ground connection is disconnected; the connection is established when the switch is pressed. Being able 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.

ATTENTION: Connecting signal cables can cause a lot of noise. Please ensure that the input

channel (mixer, audio interface, etc.) is muted during plugging. Otherwise, noise levels may cause damage.

PLEASE NOTE: Strong magnetic fields can cause humming. Therefore, do not position the speaker simulation DI box near strong magnetic fields (e.g. mains transformer).

WIRING EXAMPLES

graph LR
    A["GUITAR"] --> B["AMPLIFIER"]
    B --> C["SPEAKER CARBINET"]
    C --> D["Speaker simulation DiBox positive"]
    D --> E["Mixer"]
    E --> F["Output"]
    C --> G["THRU INPUT"]
    G --> H["Speaker simulation DiBox positive"]
    H --> I["PALMER"]
    I --> J["Mixer"]
    J --> K["PA"]
    K --> L["Output"]

WIRING EXAMPLES

graph LR
    A["GUITAR"] --> B["PREAMP OR FX DEVICE"]
    B --> C["INPUT"]
    C --> D["RECORDERING SYSTEM"]
    D --> E["OUTPUT"]
    E --> F["speaker simulation DHBox passive"]
    F --> G["lm Palmer"]

graph LR
    A["Audio System"] -->|THRU TO AMP| B["Speaker Simulation DBox positive"]
    B --> C["MixerAmplifier"]
    C --> D["Output Signal"]
    E["Handheld Guitar"] -->|1 BYPASS 2 NORMAL 3 BRIGHT 4 MELLOW| B
    B --> F["Input Output"]

TECHNICAL DATA

GENERAL

Product number PILM
Product type Speaker simulation DI box
No. of channels 1
Type passive
Transformer isolated Yes
No. of inputs 1
Input type unbalanced
Input connections 6.3 mm jack
No. of outputs 1
Output type balanced
Output connections XLR
THRU outputs per channel 1
Input attenuation (pad)	0 dB / 15 dB / 30 dB
Ground/lift switch	Yes
Additional functions	Tone: Bypass, Normal, Bright, Mellow
Housing	Aluminium continuous casting
Dimensions (H/W/D)	140 x 50 x 68 mm
Weight	0.445 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 (±1 dB, relative 1 kHz)	10 Hz-60 kHz
Input impedance (1 kHz, setting: bypass, 0 dB PAD)	8.8 kΩ
Output impedance (1 kHz, setting: bypass, 0 dB PAD)	125 Ω
THD (30 Hz, +4 dBu, unity, unweighted)	< 0.25%
THD (1 kHz, +4 dBu, unity, unweighted)	< 0.009%
IMD (SMPTE) (60 Hz/7 kHz, 4:1, +4 dBu)	< 0.005%
Transformer ratio	1:5

All measurements were performed with a generator with 600 output impedance and 1k 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!

ilm FRANKFURT

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

Directive CEM (2014/30/UE)

RoHS (2011/65/UE)

RED (2014/53/UÉ)

DÉCLARATION DE CONFORMITÉ CE

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