SPK-4P PoE+ AVB Speaker

Stereo AVB Amplifier 2x15Wrms, PoE+ powered, Onboard Sharc DSP, Plug&Play on MAC OSx with AVB support
399 USD
Metal bracket
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SPK-4P PoE+ AVB Speaker
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SPK-4P PoE+ AVB Speaker

SPK-4P PoE+ AVB Speaker : Stereo AVB Amplifier 2x15Wrms, PoE+ powered, Onboard Sharc DSP, Plug&Play on MAC OSx with AVB support.
USD399.00 InStock Customer Support
USB Audio Streaming

The SPK-4P is a PoE+ full range loudspeaker combining network audio streaming (AVB), class D amplification and Digital Signal Processor (DSP). A single CAT5/6 network cable provides power, low latency audio and control for a true Plug&Play experience. The system consists of three key element:

  • First is the Audio Video Bridging (AVB) technology powered by a 500MHz XMOS processor which provides low latency, uncompressed and tightly synchronized streams to each speaker over standard networks.
  • An on-board 400 MHz Analog Devices SHARC processor also enables substantial signal processing for true high-resolution audio capability and equalization, crossover, and room correction capabilities. All to be accessed and programmed with miniDSP’s easy-to-use interface software for live control of multiple devices.
  • Finally, a novel Multi-Level switching audio amplifier technology developed by Merus Audio provides 2x15W for powering 2 speakers (local + height). Each SPK-4P effectively being an amplifier for 2 speaker (Master + slave)


  • 3.5" Full Range driver
  • Stereo Class D Amplifier (2x15Wrms)
  • PoE+ powered or External Power supply
  • Onboard Sharc DSP processor for FIR/IIR control

Product Downloads

What's in the box?

  • 1 x SPK-4P AVB Amplifier interface
  • 1 x Metal bracket (optional)
  • 1 x External 12V power supply (Optional)
  • 1 x 1.5m Ethernet CAT5 cable



Item Description
Digital Signal Processor 32-bit Floating point Analog Devices SHARC ADSP21489 / 400 MHz
USB / AVB Processor XMOS XCore200 for digital audio streaming
  • Asynchronous USB audio UAC2.0, Driverless for Mac OS X, ASIO driver for Windows platforms
  • Audio Video Bridging (AVB) streaming - Gigabit Ethernet
Digital audio input TOSLINK optical input. The input signal is processed by a high quality onboard Asynchronous Sample Rate Converter for compatibility with most common sample rates (20–216kHz)
Digital Audio amplifier

Dual channel amplifier for Master + Slave configuration.

2x15W RMS under +12V configuration
2x12W RMS under PoE+ mode (power carried over CAT5/6)

DSP capabilities

FIR filtering with number of taps assignable to each output channel. FIR filters are designed by third-party programs. FIR file format: IEEE 754 single-precision binary floating-point.

IIR EQ, gain, level, delay. Configured by real time GUI.

Filter storage Four on-board presets, selectable by IP control
USB port USB port type Mini-B for audio streaming (USB audio firmware)
Real time control and firmware upgrade
Power supply 12 VDC single supply / 2.1 mm round plug / 45W
Dimensions (H  x W x D) mm 125 x 125 x 131mm / 1.3kg
  • Optional metal bracket, see drawings below for details.
  • 3/8 mounting thread
Enclosure / Finish Wood enclosure, black textured paint
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