JustBoom AMP Add-on Board TPA3118D2DAP Class-D Amplifier For Discount


SKU: US-7549344710905 Category: Tags: ,


JustBoom AMP Add-on Board TPA3118D2DAP Class-D Amplifier

How to Configure JustBoom Player?

JustBoom AMP Add-on Board is a Plug & Play amplifier. You can either stack this high-quality audio power AMP onto the JustBoom DAC / DAC HAT or use it for the line-level input. Up to 2×55 W amplification makes the JustBoom AMP Addon Board ideal for high-quality stereo projects. This AMP add-on features the advanced Class-D TPA3118D2DAP amplifier chip. It is compatible with 4 Ohm and 8 Ohm passive speakers.

Video Presentation of the Product


Applications of JustBoom AMP Add-on Board

  • A standalone amplifier that can integrate with the existing DAC
  • Can work with JustBoom DAC / DAC HAT for all-in-one high-quality audio capabilities
  • High-definition audio streaming from network storage or cloud
  • A set-top box, media centre, or entertainment system
  • Multi-room audio player

Features of JustBoom AMP Add-on Board

  • Full HQ Audio – 192 kHz | 24-Bit
  • Up to 2×55 W stereo amplification at 8 Ohms | 2×30 W RMS
  • Plug & Play | Supports 4 Ohm and 8 Ohm passive speakers
  • Gain and Output voltage configurable via onboard hardware jumpers.
  • Does not require soldering
  • Can work as a standalone device
  • Once connected to a DAC, DAC Board, DAC HAT, the JustBoom AMP Add-on Board can supply power to the connected hardware including Raspberry Pi with 5V / 2.5A
  • The box includes mounting hardware

Specifications of JustBoom AMP Add-on Board

  • Amplifier Chip: TPA3118D2DAP Class-D
  • Maximum Power Output: 2 x 55 W | 2 x 30 W RMS
  • Input Connectors: 5-Line | L+ (hot line) and L- (cold line) for the left channel | R+ (hot line) and R- (cold line) for the right channel | Middle (Ground) or cable shield connection
  • Unbalanced Connectors: L+ (left line), R+ (right line) GND, R-, and L- are ground connections (same input ground to be shorted)
  • Advanced ESD Protection
  • Onboard dual inductors for footprint efficiency
  • Harmonic Distortion (Total): THD+N 0.1% @ 25 W / 1 kHz / 21V
  • Signal to Noise Ratio: SNR 102dB A-Wtd (Ref. THD+N < 1% / Gain = 20 dB / f = 1 kHz)
  • Configurable Gain: Onboard jumpers to configure gain | 36dB, 32dB, 26dB, 20dB)
  • Configurable Output Voltage: Onboard jumpers to configure output voltage | 14V and 21V
  • Power Jack: 2.1mm DC jack compatible with 8V ~ 24V power supply


  • When using with 8 Ohm passive speakers, a 24V power supply is recommended. The output should be at least 75 Watt.
  • When using with 4 Ohm passive speakers, a 15V ~ 19V power supply is recommended. The output should be at least 58 Watt.

Items Included

  • 1x JustBoom AMP Add-on Board
  • 4x Plastic Spacers
  • 4x Metal Bolts
  • 4x Metal Nuts
  • 2x JustBoom Stickers
  • 1x Info Card
  • 1x Max2Play Voucher
  • 1x Roon Labs Voucher

Compatible Items (Not Included)

  • JustBoom DAC
Shipping & Delivery

We accept returns on non-sale items that are in original packaging, unused, and unwashed within 30 days of receipt. Please follow our returns/exchanges process below. If items do not meet our requirements for return, they will be shipped back to you in lieu of a refund. Shipping and handling charges are non-refundable (exceptions may apply).

Returns & Exchanges Process: If item(s) fit within our returns guidelines found in the Returns. Please allow 7-10 business days for the credit to appear on your account after your return is processed.