Datasheet Amp4 Pro

 

Datasheet Amp4 Pro

Overview

The HiFiBerry Amp4 Pro is a DAC/amplifier combination for all Raspberry Pi models featuring a 40-pin GPIO header.

Facts

  • Stereo DAC with sample rates up to 192kHz/24bit
  • Dual domain clock circuit for optimal audio clock generation
  • Up to 2x30W output power output
  • Uses a single external power supply 12-24V (see below) to power the amplifier and the Raspberry Pi
  • 5V power supply up to 5A
  • No soldering, comes as a pre-fabricated kit, just plug it onto the Raspberry Pi.
  • Can be extended with the HiFiBerry DSP add-on
  • Comes with all components required to mount it.

Hardware and speaker connectors

L/R outputs can’t be bridged!

Note that the actual board might look a bit different. Layout and components might change without further notice. We do not guarantee a specific PCB layout or specific components.

Specifications

Recommended operating voltage12-24V
Absolute maximum operating voltage24V
Maximum output power60W
THD+N<0.02%typical, output power 0.1-10W
SNR104dbtypical
Frequency response20-20000Hzoutput filter characteristics depending on specific speaker parameters
Typical output power per channel14WVsupply=12V, Rspk = 4Ohm, THD+N <0.1%
18WVsupply=18V, Rspk = 4Ohm, THD+N <0.1%
20WVsupply=24V, Rspk = 4Ohm, THD+N <0.1%
8WVsupply=12V, Rspk = 8Ohm, THD+N <0.1%
17WVsupply=18V, Rspk = 8Ohm, THD+N <0.1%
28WVsupply=24V, Rspk = 8Ohm, THD+N <0.1%
Maximum output power per channel15WVsupply=12V, Rspk = 4Ohm, THD+N <10%
30WVsupply=18V, Rspk = 4Ohm, THD+N <10%
44WVsupply=24V, Rspk = 4Ohm, THD+N <10%
10WVsupply=12V, Rspk = 8Ohm, THD+N <10%
20WVsupply=18V, Rspk = 8Ohm, THD+N <10%
38WVsupply=24V, Rspk = 8Ohm, THD+N <10%
Sample rates44.1-192kHz

The Amp4 will power the Raspberry Pi. It is powerful enough for any Pi up to the Pi4B. Note that additional hardware drawing lots of power (e.g. hard disks, displays) might require an external power supply.

Configuration

dtoverlay=hifiberry-amp4pro

Media

Additional information

Last updated: March 5, 2024