{"product_id":"palmer-river-spree-pspree-active-stereo-usb-c-media-di-box","title":"Palmer RIVER spree PSPREE Active Stereo USB-C Media DI Box","description":"\u003ch2\u003ePalmer RIVER spree PSPREE Active Stereo USB-C Media DI Box\u003c\/h2\u003e\n\n\u003cp\u003eThe Palmer PSPREE RIVER spree Active Stereo USB-C Media DI Box converts digital audio from laptops, smartphones, and tablets into balanced analog signals for professional sound systems. Featuring 32-bit\/192 kHz digital-to-analog conversion, transformer-isolated XLR outputs, and selectable microphone or line levels, it provides a dedicated connection between USB-C playback devices and professional audio equipment.\u003c\/p\u003e\n\n\u003cp\u003eDesigned for live sound engineers, touring professionals, musicians, and content creators, the Palmer RIVER spree simplifies the integration of digital playback sources into analog audio systems. Connect a compatible USB-C laptop, smartphone, or tablet directly to a mixing console, stagebox, or PA system without relying on conventional headphone outputs or separate audio adapters. The dual-channel design maintains stereo separation through independent left and right XLR connections, making it suitable for backing tracks, presentation audio, live event playback, and studio monitoring. Galvanic isolation separates electrical grounds between connected devices, helping reduce ground-loop hum and unwanted interference. The switchable Mic\/Line output level provides additional flexibility when connecting to different mixing console inputs.\u003c\/p\u003e\n\n\u003cp\u003eThe Palmer PSPREE incorporates a dedicated 1\/4\" TRS headphone output for direct monitoring and a USB-C connection that supports both digital audio transfer and power delivery. The unit operates from USB bus power or its included external power adapter. When externally powered, USB-C power pass-through allows compatible connected devices to receive power during operation. SIGNAL, SYNC, and POWER indicators provide immediate feedback about connection and operating status. Constructed from powder-coated aluminum and steel, the enclosure is designed for portable audio systems, professional stages, and demanding production environments. Engineered in Germany, the RIVER spree combines digital audio conversion, balanced output connectivity, and flexible powering in a compact stereo DI box.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e32-Bit\/192 kHz Digital-to-Analog Conversion:\u003c\/strong\u003e Converts high-resolution USB-C digital audio into stereo analog signals for professional playback, mixing, and monitoring applications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDual Transformer-Isolated XLR Outputs:\u003c\/strong\u003e Provides two balanced XLR connections with galvanic isolation to help prevent ground-loop hum and minimize electrical interference between connected equipment.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSelectable Mic\/Line Output Levels:\u003c\/strong\u003e Switch between microphone-level and line-level operation to accommodate different mixing console inputs, stageboxes, and professional audio systems.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUSB-C Audio and Power Connectivity:\u003c\/strong\u003e Combines digital audio input and power functionality in one USB-C connection, supporting compatible computers, smartphones, and tablets.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUSB-C Power Pass-Through:\u003c\/strong\u003e Allows connected devices to receive power when the DI box operates using its included external power adapter.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDedicated Headphone Monitoring:\u003c\/strong\u003e Features a 1\/4\" TRS headphone output for direct audio monitoring or use as an additional analog signal output.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGround-Lift Switching:\u003c\/strong\u003e Provides additional control over grounding to help address unwanted noise in professional audio installations.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTour-Ready Metal Construction:\u003c\/strong\u003e Features an aluminum and steel enclosure with a powder-coated finish, three status indicators, and included power and connectivity accessories.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eProfessional USB-C Audio Conversion\u003c\/h3\u003e\n\n\u003ch4\u003eHigh-Resolution Digital-to-Analog Processing\u003c\/h4\u003e\n\u003cp\u003eThe RIVER spree incorporates a digital-to-analog conversion system supporting resolutions up to 32-bit\/192 kHz. This allows compatible USB-C devices to deliver digital audio directly to the DI box for conversion into balanced analog output signals.\u003c\/p\u003e\n\n\u003cp\u003eWith a specified frequency response of 20 Hz to 20 kHz within +\/-0.5 dB, the processor provides consistent response across the audible frequency range. A minimum signal-to-noise ratio of 112 dB supports clean signal transfer in professional playback applications.\u003c\/p\u003e\n\n\u003ch4\u003eBalanced Stereo Outputs with Galvanic Isolation\u003c\/h4\u003e\n\u003cp\u003eTwo balanced 3-pin XLR outputs provide separate left and right audio channels for connection to professional mixing consoles, stageboxes, and compatible audio interfaces.\u003c\/p\u003e\n\n\u003cp\u003eThe outputs incorporate galvanic isolation through integrated transformers with a 1:1 transformation ratio. This design electrically separates connected audio equipment and helps reduce interference caused by differences in grounding potential.\u003c\/p\u003e\n\n\u003cp\u003eA dedicated ground-lift switch provides additional grounding control when integrating the DI box into complex sound systems.\u003c\/p\u003e\n\n\u003ch4\u003eSwitchable Microphone and Line Output Levels\u003c\/h4\u003e\n\u003cp\u003eThe PSPREE features selectable Mic and Line output modes, allowing users to configure the analog output level according to the connected equipment.\u003c\/p\u003e\n\n\u003cp\u003eMicrophone-level operation supports integration with suitable microphone preamplifier inputs, while line-level operation accommodates compatible line inputs. The balanced outputs provide a maximum specified level of 18 dBu under the manufacturer's stated measurement conditions.\u003c\/p\u003e\n\n\u003ch3\u003eFlexible USB-C Power and Connectivity\u003c\/h3\u003e\n\n\u003ch4\u003eUSB Bus-Powered Operation\u003c\/h4\u003e\n\u003cp\u003eThe Palmer RIVER spree supports USB bus-powered operation, allowing a compatible connected USB-C device to provide operating power without requiring the external adapter.\u003c\/p\u003e\n\n\u003cp\u003eThis configuration is useful for mobile production systems, temporary event installations, and other applications where minimizing external power connections is beneficial.\u003c\/p\u003e\n\n\u003ch4\u003eExternal Power and USB-C Pass-Through\u003c\/h4\u003e\n\u003cp\u003eThe included external power adapter provides an alternative power source for the DI box. When the external adapter is connected, the USB-C interface supports power pass-through to compatible connected devices.\u003c\/p\u003e\n\n\u003cp\u003eThis feature allows a smartphone, tablet, or laptop to receive power while supplying digital audio to the DI box, subject to the connected device's power requirements and compatibility.\u003c\/p\u003e\n\n\u003ch4\u003eIntegrated Headphone Monitoring\u003c\/h4\u003e\n\u003cp\u003eA dedicated 1\/4\" TRS headphone connection provides direct access to the converted audio signal for monitoring. The headphone output can also serve as an additional analog output in compatible applications.\u003c\/p\u003e\n\n\u003cp\u003eThree integrated LED indicators display SIGNAL, SYNC, and POWER status, helping technicians confirm signal activity, USB synchronization, and operating power.\u003c\/p\u003e\n\n\u003ch3\u003eApplications for Live Sound, Studio, and Media Playback\u003c\/h3\u003e\n\u003cp\u003eThe Palmer PSPREE is designed for professional audio environments requiring a dependable connection between USB-C media devices and conventional analog sound systems.\u003c\/p\u003e\n\n\u003cp\u003eIn live sound applications, playback engineers can route stereo backing tracks or event audio from a laptop directly into a mixing console using balanced XLR connections. Galvanic isolation helps address electrical interference between interconnected devices.\u003c\/p\u003e\n\n\u003cp\u003eFor presentations, conferences, and corporate events, the unit provides a direct audio interface between USB-C playback devices and installed sound systems. The selectable output levels allow integration with different input configurations.\u003c\/p\u003e\n\n\u003cp\u003eStudio users and content creators can also use the RIVER spree as a compact stereo digital-to-analog interface with dedicated headphone monitoring. The metal enclosure and included accessories make it suitable for both fixed installations and mobile production equipment.\u003c\/p\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Palmer\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e Adam Hall Group\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e RIVER spree\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e PSPREE\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Series:\u003c\/strong\u003e Palmer RIVER\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Active Stereo USB-C Media DI Box\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDI Box Type:\u003c\/strong\u003e Active\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Channels:\u003c\/strong\u003e 2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Audio Inputs:\u003c\/strong\u003e 1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Balanced Outputs:\u003c\/strong\u003e 2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDigital-to-Analog Conversion:\u003c\/strong\u003e Up to 32-bit\/192 kHz\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFrequency Response:\u003c\/strong\u003e 20 Hz to 20 kHz, +\/-0.5 dB Relative to Average\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSignal-to-Noise Ratio:\u003c\/strong\u003e Minimum 112 dB\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGalvanic Isolation:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIsolation Transformer:\u003c\/strong\u003e Integrated\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTransformer Ratio:\u003c\/strong\u003e 1:1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGround-Lift Function:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutput Level Selection:\u003c\/strong\u003e Mic \/ Line\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDigital Audio Input:\u003c\/strong\u003e 1 x USB-C Female\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInput Signal Type:\u003c\/strong\u003e USB Digital Audio\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBalanced Audio Outputs:\u003c\/strong\u003e 2 x 3-Pin XLR Male\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutput Configuration:\u003c\/strong\u003e Stereo Left and Right\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeadphone Outputs:\u003c\/strong\u003e 1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeadphone Connector:\u003c\/strong\u003e 1 x 1\/4\" TRS Female\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Balanced Output Level:\u003c\/strong\u003e 18 dBu at Less Than 1% THD, 20 Hz to 20 kHz\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBalanced Output Impedance:\u003c\/strong\u003e 600 Ohms at 1 kHz\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum THD+N at 1 kHz:\u003c\/strong\u003e 0.015% at +4 dBu, Unity, Unweighted\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum THD+N at 30 Hz:\u003c\/strong\u003e 0.015% at +4 dBu, Unity, Unweighted\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Intermodulation Distortion:\u003c\/strong\u003e 0.001%, SMPTE, 60 Hz, 4:1, +4 dBu\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower Source:\u003c\/strong\u003e USB Bus Power or External Power Adapter\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExternal Power Operating Voltage:\u003c\/strong\u003e 18V DC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUSB Bus Power Requirement:\u003c\/strong\u003e 5V DC \/ 1A\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRated Power:\u003c\/strong\u003e 5W\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUSB-C Power Pass-Through:\u003c\/strong\u003e Supported with 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Title","offer_id":50879473156293,"sku":"PALM-PSPREE","price":411.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0630\/3085\/3829\/files\/1-palmer-pspree_1b61dca8-906e-4e99-9f99-3a73d7270604.jpg?v=1793822409","url":"https:\/\/avlgear.com\/products\/palmer-river-spree-pspree-active-stereo-usb-c-media-di-box","provider":"AVLGEAR","version":"1.0","type":"link"}