Palmer RIVER mosel
The Palmer RIVER Mosel is a high-end active direct box designed for stage, studio, and professional sound reinforcement applications. It converts a high-impedance unbalanced signal—such as that from a guitar, bass, keyboard, or synthesizer—into a low-impedance balanced signal perfectly suited for a mixing console or audio interface.
Its active input stage features a high impedance of 600 kΩ, preserving the character and dynamics of instruments, particularly those equipped with magnetic or piezo pickups.
The Mosel incorporates an isolated transformer with Mu-metal shielding, ensuring effective galvanic isolation to reduce hum, ground loops, and electromagnetic interference.
To accommodate various sources, it features a switchable attenuator (0, -10, -20, or -30 dB) and provides up to +12 dB of gain for low-level signals. A THRU output allows the input signal to be sent simultaneously to an amplifier.
The ground lift system offers two modes—Soft and Hard—to effectively resolve grounding issues encountered in complex audio setups.
The Palmer RIVER Mosel can operate on 48 V phantom power or a 9 V battery, offering great flexibility for both stage and studio use. Key Features
Professional mono active DI box
Suitable for guitars, basses, keyboards, and synthesizers
High-impedance input (600 kΩ)
6.3 mm jack and XLR inputs
Balanced XLR output
THRU output for parallel connection to an amplifier
Galvanically isolated transformer
Mu-metal shielding against electromagnetic interference
Switchable attenuator: 0 / -10 / -20 / -30 dB
Adjustable gain up to +12 dB
Soft/Hard Ground Lift
Signal-to-noise ratio of 113 dB
48 V phantom power or 9 V battery
Built-in battery tester
Rugged metal housing designed for stage and studio use
Engineered in Germany
Number of channels: 1
Number of inputs: 1
Number of outputs: 1
Inputs
Signal type: Unbalanced
Input connectors:
3-pin XLR female
6.3 mm TS jack
Input impedance: 600 kΩ
Input attenuation: 0 / 10 / 20 / 30 dB
Gain: 0 to +12 dB
Maximum input level: up to +21 dBu
Output
Signal type: Balanced
Connector: 3-pin XLR male
Maximum output level: +14 dBu
Output impedance: 83 Ω at 1 kHz
Audio performance
Frequency response: 20 Hz – 20 kHz
Signal-to-noise ratio: 113 dB
Max. THD+N at 1 kHz: 0.006%
Max. THD+N at 30 Hz: 0.35%
Max. SMPTE IMD: 0.0087%
Transformer and Ground Lift
Transformer-isolated: Yes
Transformer ratio: 1:1
Shielding: Mu-metal
Ground Lift: Soft / Hard
Power supply
Phantom power: 48 V
Battery power: 1 x 9 V battery (type 6LR61)
Built-in battery tester: Yes
Rated power: 0.5 W
Construction
Housing material: Aluminum
Design: Reinforced metal housing for professional use
Dimensions and weight
Width: 140 mm
Height: 50 mm
Depth: 128 mm
Weight: 0.72 kg
Operating conditions
Ambient temperature: -20 °C to +70 °C
Maximum humidity: 80% non-condensing
Included accessories
Rubber feet
Re-writable tour label
Ref. Euroguitar : 125754
