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Palmer SPREE Active stereo USB-C media DI box

Item No.: PSPREE
Series: River
Converts USB-C audio to balanced XLR signals
D/A conversion with 32-bit/192 kHz
Galvanically isolated XLR outputs
Switchable output level: Mic / Line
Ground-lift switch
Optimal impedance matching for lossless, linear sound transmission
1 × USB-C audio port with bidirectional power supply
2 × XLR outputs, balanced (L/R)
1 × 6.3mm TRS headphone output
Power supply via USB-C cable or power adapter (both included)
USB-C power pass-through when using the power adapter
Status LEDs: SIGNAL, SYNC & POWER
Metal housing for touring and stage applications
Designed as a robust alternative to repurposed recording interfaces
Engineered in Germany
 

Contents and categories

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Contents and categories

Series

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Converts USB-C audio to balanced XLR signals
D/A conversion with 32-bit/192 kHz
Galvanically isolated XLR outputs
Switchable output level: Mic / Line
Ground-lift switch
Optimal impedance matching for lossless, linear sound transmission
1 × USB-C audio port with bidirectional power supply
2 × XLR outputs, balanced (L/R)
1 × 6.3mm TRS headphone output
Power supply via USB-C cable or power adapter (both included)
USB-C power pass-through when using the power adapter
Status LEDs: SIGNAL, SYNC & POWER
Metal housing for touring and stage applications
Designed as a robust alternative to repurposed recording interfaces
Engineered in Germany
Description

USB-C to studio and stage.

Feed audio from a laptop, smartphone or tablet directly into a mixer, stagebox or PA system. The Palmer SPREE is an active stereo USB-C media DI box designed exactly for this application.

It converts USB-C audio into two balanced XLR signals for direct integration into professional audio setups. D/A conversion with up to 32-bit / 192 kHz ensures high-resolution signal conversion, while the galvanically isolated XLR outputs help prevent hum and unwanted interference. A switchable Mic / Line output level allows easy matching to different input stages, and the ground-lift switch provides additional noise control in demanding environments. A 6.3 mm TRS headphone output allows direct monitoring or can be used as an additional signal output. Status LEDs for SIGNAL, SYNC and POWER provide quick visual confirmation during setup and operation.

The SPREE can be powered either via USB-C or via the included external power supply. When the external power supply is used, USB-C power pass-through allows the connected device to be powered at the same time. This is particularly useful for setups with smartphones or tablets.

With its robust metal housing, the Palmer SPREE is ready for touring and stage use. Engineered in Germany.


Specifications
General
Type
Active
Included Accessories
Tour label, USB cable, Rubber feet
Material
Aluminium, Steel
Coating
Powder coated
Isolated transformer
Yes
Transformer Ratio
1:1
Ground Lift
Yes
Frequency response (±0.5 dB, rel. Avg)
20 - 20,000 Hz
Number of inputs
1
Number of outputs
2
Colour
Black
Number of channels
2
Inputs
Input signal type
USB
Input connector types
USB-C socket female
Outputs
Output signal type
Headphone, Balanced
Number of line outputs
2
Line outputs connector type
XLR 3-pole male
Number of Headphone outs
1
Headphone out connector type
6.3 mm Jack TRS female
Line output performance
Max. output level (<1 % THD, 20 Hz - 20 kHz)
18 dBu
Balanced output impedance (1 kHz)
600 Ω
Signal processing
Min. Signal-to-noise ratio (SNR)
112 dB
Max. THD+N (1 kHz, +4 dBu, unity, unweighted)
0.015 %
Max. THD+N (30 Hz, +4 dBu, unity, unweighted)
0.015 %
Max. IMD (SMPTE, 60 Hz, 4:1, +4 dBu)
0.001 %
Mains operation
Operation voltage
12 V DC - 18 V DC (external power supply), USB bus powered (5 V DC / 500 mA)
Rated power
5 W
Housing
Cabinet material
Aluminium, Steel
Coating
Powder coated
Colour
Black
Environmental
Ambient temperature
-10 - 70 °C
Maximum air humidity (non-condensing)
80 %
Dimensions & weight
Width
140 mm
Height
50 mm
Depth
128 mm
Weight
575 g
Downloads & links
Stories
24. Nov 2025
Palmer River Series
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