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Allo Volt - Amplifier for Piano DAC

Allo Volt - Amplifier for Piano DAC
Only 8 left!
£ 29.99

The TPA3118 class D amplifier IC is a leap in terms of audio quality! The Volt Amplifier Board from Allo is a HAT sized implementation, designed to work with the Allo Piano DAC & Raspberry Pi.

- 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)
- PCB with extra copper (since on transient’s current can spike to 5A)

Features:

  • 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
  • And Additional Provision for stepped attenuator volume control
  • Comes in two flavors (Volt and Vol+)
  • Power Connector Jack Barrel size: 3.00mm ID (0.118"), 6.50mm OD (0.256")

Technical Specification

  • Chipset TPA3118D2
  • Output 2 x 50W (Max) into a 4 to 8-? 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 = 58mm * 86.75mm * 32.06mm
  • DC Connector Size 3mm x 7.3mm
  • Mating Plug Size 3mm x 6.5mm
  • Board Weight 120g

Please Note. The PCB comes in two flavours:

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

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