Better By Design
Primo Plus is engineered from scratch to take our acclaimed Primo to a whole new level, combining 2 x ESS ES9039Q2M in a dual mono layout with upgraded OPAMPs, an ultra-low noise dual linear power supply, refined filtering, and a high precision clock that cuts jitter and lifts overall resolution.
It also introduces a broader range of digital inputs for greater system flexibility. USB-C handles native high-resolution audio, USB-A supports external storage, while optical, coaxial, Bluetooth, and full network streaming cover every modern source with ease. With the latest Volumio OS optimizing the entire signal path, the result is a deeper soundstage, sharper imaging, and a more natural sense of presence. Primo Plus doesn’t just improve on the original. It elevates every aspect of performance.
Pure Signal Performance
Primo Plus is designed to extract the purest possible signal from your music, starting with a high-precision clock that keeps phase noise and jitter extremely low for a cleaner, more stable presentation. Its advanced power architecture uses LC filtering and dedicated regulation for analog and digital sections, preserving subtle detail and control.
You can shape the sound with 8 selectable DAC filters or switch to NOS mode for a more natural, unprocessed character. The fully balanced output stage maintains impressive channel separation, and the built-in volume control makes it easy to run Primo Plus directly into a power amplifier for a streamlined, high-performance setup.
Volumio OS comes with a Multi-room capability that creates an integrated environment with other Volumio stations in your home.
Dual Mono ESS DAC Architecture
Two ESS ES9039Q2M chips deliver cleaner detail, higher resolution, and a wider dynamic range.
Ultra Low Noise Fully Refined Power & Clocking
Refined power and clocking cut noise and jitter for cleaner sound.
Expanded Input Flexibility For Any Setup
USB C, USB A, optical, coaxial, Bluetooth, and network streaming give you full freedom to connect any source.
Made for True Music Lovers
Primo Plus is made for people who simply love music and want a more expressive, more engaging way to hear it. Fans of the original Primo will appreciate how much more power and refinement it brings, while anyone building or upgrading a system will enjoy how easy it is to set up and use. The included remote makes everyday control from the moment you turn on the device.
Primo Plus can be matched perfectly to any amplifier thanks to 8 selectable output levels from 0.5 to 6.30 Vrms, letting your system perform at its very best. And if you prefer a clean, compact setup, its built in preamp lets you connect straight to a power amp or active speakers for great sound with minimal effort.
Volumio Premium Built In
On board, the Primo Plus runs Volumio, the platform that brings all your digital music together in one smooth and unified experience. Streaming services, local files, CDs via an external drive, Bluetooth sources, and connected storage are all managed from a single, easy interface, making your entire music world feel effortless and organized.
Volumio connects smoothly with major streaming services, letting you access Tidal, Qobuz, Spotify, and HighResAudio from the same interface. You can move between them freely, browse libraries, and play your saved music without changing apps or disrupting playback.
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Audio
HIGH PRECISION DUAL MONO DAC: 2 x ESS ES9039Q2M
HIGH RESOLUTION PLAYBACK: Up to PCM 768kHz/32bit and DSD512
ULTRA-LOW JITTER: High-precision clock with ultra-low phase noise (90 fs) and jitter
ULTRA-LOW NOISE: High quality OPAMPs and line regulators
HIGH QUALITY POWER: LC filtering and dual linear stage with dedicated line regulators for analog and digital paths
DAC FILTERS: 8 digital filters for fine tuning
NOS MODE: Non-oversampling option for raw, unprocessed audio signal data
BALANCED DESIGN: Fully balanced with balanced stereo output
VOLUME CONTROL: Pre-amp mode to drive power amps directly
OUTPUT VOLTAGE SELECTION: 8 levels for balanced output: 1Vrms - 6.30Vrms
8 levels for unbalanced output: 0.5Vrms -3.15VrmsDIGITAL INPUTS: NETWORK up to PCM 384kHz/32bit
USB-C up to PCM 768kHz/32bit and DSD512
USB-A for USB Flash Drive and HDD/SDD
COAX up to PCM 192kHz/24bit
OPTICAL up to PCM 192kHz/24bit
BLUETOOTH 5.0
Digital Outputs
NETWORK: PCM 384kHz/32bit
USB-C (DEVICE): PCM 768kHz/32bit, DSD512
USB-A (HOST): Input - USB Flash Drive and HDD/SDD Output - PCM 1536kHz/32bit, DSD1024
COAX: PCM 192kHz/24bit
OPTICAL: PCM 192kHz/24bit
BLUETOOTH: 5.0
Hardware Specifications
POWER: 5V DC / 3A
POWER CONNECTOR: Barrel jack 5.5/2.1mm (outer/inner diameter)
Power polarity: positive
CPU: Quad-core Cortex-A72 (ARM v8) 64-bit SoC @ 1.5GHz
RAM: 2GB LPDDR4
INTERNAL STORAGE: 16 GB EMMC
USB: 1x USB Type-C connector (device) — 2x USB Type-A connectors (host)
S/PDIF: 1x Coaxial input (RCA connector) — 1x Optical input (TOSLINK connector)
STEREO OUTPUTS: 2x unbalanced RCA connectors — 2x balanced XLR connectors
HIGH-SPEED NETWORK: Wi-Fi 802.11a/b/g/n/ac (2.4G and 5G) Gigabit LAN10/100/1000M
TRIGGER OUT: 12V 3.5mm jack (positive on tip)
DISPLAY: 1.3” OLED display
KNOBS: 2 rotary encoder knobs with push-button
HDMI VIDEO OUTPUT: Volumio OS app mirroring up to 4K/60fps
REMOTE: IR Remote receiver (aluminum IR remote included)
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