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Allo Volt+ Class D Amplifier


New product

The TPA3118 class D amplifier IC is a leap in terms of audio quality.

Our board is a high quality implementation of the stock design.

More details

1 Item

Warning: Last items in stock!

32,23 €

Volume discounts

Quantity Discount You Save
5 1% Up to 1,61 €
20 2% Up to 12,89 €
35 3% Up to 33,84 €
50 4% Up to 64,46 €
65 5% Up to 104,75 €
80 6% Up to 154,71 €
100 7% Up to 225,62 €

More info

  • Using TPA3118 (better grounding of main IC)
  • Anti-Pop circuit
  • Bootstrap snubber mod
  • Brand name components as per picture
  • Radio avoidance switch (to reduce interference)

Note that PCB comes in 2 flavors:

1. Volt is a shield and beneath it has connector that will plug into our DACs (Piano 1.1 and Piano 2.1). It has no RCA inputs. (Capacitance Multiplier can be added as a standalone board).

2. Volt+ is a standalone amplifier with RCA IN (stereo). In addition to everything that the Volt has, we have added a circuit in the power supply that will reject spikes and noise to about 60db. The name of the circuit is "Capacitance Multiplier". Please note that Class D amplifier needs a quiet PSU.

Volt+ can be used with our DACs through the RCA input, as a standalone board.

Unlike our competitors that blindly copy the THD+N and SNR from datasheet, the files here show the real and tested characteristics of our Volt+ at different W of output power.

Note that in most cases we beat the THD+N and SNR from TI designed, evaluation board.


  •     This class D amplifier goes up to 2 x 50W Max
  •     The components used are specifically designed for high end audio devices (Würth Inductor, TI chipset, film capacitors and ± 1% thin film resistors)
  •     VOLT AMP boasts 4 output filters, 4 EMI Snubbers, 4 bootstrap capacitors and gain setting components
  •     We are using CM filter circuits in power section to reduce maximum ripples in power
  •     We are using 10K logarithmic Potentiometer for Volume control. Available with different Input connectors: 2 x RCA
  •     Comes in two flavors (Volt and Volt+)
  •     Power Supply Required: 16-24V (we recommend 19V), 60-90W
  •     Power Connector Jack Barrel size: 3.00mm ID (0.118"), 6.50mm OD (0.256")

Technical Specifications

  • Chipset:     TPA3118D2
  • Output:     2 x 50W (Max) into a 4 to 8-Ω BTL Load
  • Class D Operation:     90% POWER EFFICIENCY
  • SNR:     102dB
  • Supply Voltage:     UP TO 24V DC
  • Operating Temperature:     -40°C to 85°C Ambient
  • Board Size:     LWH = 82.83mm * 125.5mm * 40.2mm
  • DC Connector Size:     3mm x 7.3mm
  • Mating Plug Size:     3mm x 6.5mm
  • Board Weight:     230g