Hang Loose Processor

HLP Multichannel (8 Channel)

HLP Multichannel (16 Channel)

HLP Multichannel (24 Channel)

HLP Multichannel (32 Channel)

2x Raspberry Pi Compute Module 5 (CM5), up to 16GB RAM and 64GB eMMC

Xilinx Spartan6 FPGA

Analog Devices Sharc DSP

Optional XMOS XU216 MCU module for high channel count applications

Optional AES67 module for stereo and multichannel audio over IP

Optional DSP module in SODIMM200 (2x Sharc DSP or AD Sigma DSP)

2x 1Gbit Ethernet (1 per CM5)

2x 100Mbit Ethernet with POE+ (1 per CM5, 1 shared with AES67 module)

2x M.2 slot (1 per CM5) with PCIe 1x for NVMe (SSD) storage expansion

4x USB 3.0 (2 per CM5)

1x USB 2.0 on the front panel

1x USB UART for primary CM5

2x HDMI 2.0 (1 per CM5)

Optional 2.4 GHz, 5.0 GHz IEEE 802.11 b/g/n/ac wireless on CM5

Optional Bluetooth 5.0, BLE on CM5

Primary display TFT LCD 320×240 RGB

Secondary display TFT LCD 1424×280 RGB

Analogue joystick with push button

3x silicone backlit buttons

3x RGB LED status indicator + 32x RGB LED ring around joystick

Stereo analogue audio input

2 x XLR female, 10kΩ impedance

Level adjustable 0-24dBu

Left channel switchable to MIC input with 48V phantom power

1x AES/EBU, 44.1-192kHz, 24bits, 110Ω input impedance

1x S/PDIF, 44.1-192kHz, 24bits, 75Ω input impedance

1x TOSLINK, 44.1-96kHz, 24 bits

1x AES/EBU, 48-192kHz, 24bits

1x S/PDIF, 48-192kHz, 24bits

1x TOSLINK, 48-96kHz, 24 bits

HDMI 2.0a input and output (up to 4K 60Hz)

12-bit deep Full HD, Full 3D, HDR and 4K 60Hz video supported

Up to 8-channel 192kHz/24bit PCM and 6-channel DSD64 audio extraction

USB Audio Class 2 controller based on XMOS XU216 MCU

Up to 8-channel IN and OUT configuration

Up to 384kHz and 24 bits LPCM in both directions

14” (6.3mm) female stereo socket

Software adjustable volume

Minimum load impedance 16Ω

AC voltage: 100-240VAC, 50/60HZ

AC Connector: IEC13, 3A filtered

Power consumption: 55W max

Optional DC power input 48V

Dimensions: 430x270x44mm

Weight: 2.5kg

Altitude 15,000 ft / 4,420m AMSL

Temperature range 0 to +45ºC working. -10 to +50ºC storage

Humidity 95% @ 35ºC, non-condensing

Raspberry Pi OS

Raspberry Pi Connect for remote control operation and support

Hang Loose Host (HLH) application – host any VST3 audio plugin – e.g. convolution, loudness control, crosstalk cancelation, parametric equalizer, compressor, etc.

Hang Loose Convolver(HLC) – specialized, high-resolution convolution with instant switching between level matched filters.

HLC can run as a VST3 plugin or standalone application. Standalone application can run headless with web interface or custom user interface using HLC API.

Home Audio Fidelity – X talk Shaper and Room Shaper VST3 plugins (demo mode).

Linux Studio Plugins – open-source plugins including loudness control, parametric eq, expander, compression, mixer, etc.

REW – acoustic measurement software

Yarbridge – (optional) a modern and transparent way to use Windows VST2 and VST3 plugins on Linux

RAVENNA ALSA LKM – (optional) RAVENNA AES-67 ALSA driver

Uses high resolution FIR DRC filters (65,536 taps or greater) at sample rates through 384 kHz that no other DRC hardware can match

“Drop-in” audio DSP processor – software installed, configured, and ready to go!

“Swiss Army knife” of digital audio I/O connectivity

Any input can be routed to any output (e.g. TOSLINK in -> DSP -> USB out)

Run in GUI or CLI (headless) mode

Specialized ALSA backed support for local audio loopback with clock drift correction and automatic sample rate switching (Auto SRS)

UPnP Bridge mode – ALSA loopback input and UPnP output with Auto SRS

UPnP input Render mode and either local digital output or Bridge mode UPnP output to final renderer both with Auto SRS

High resolution ADC including analog mic preamp for taking acoustic measurements or hooking up a turntable, tape machine or any analog output

2 x CM5 processors – one for system management/monitoring, one for audio DSP

Simple “set and forget” operation – an audio appliance with the power of a computer

Bring your own plugins or select from a list of thousands

Bring your own high-resolution FIR filters – no vendor lock in

Bring your own software – HLP is an open audio DSP platform

World-wide remote support via Raspberry Pi Connect

Approximate MSRP USD $2700

June 2026