Now offered in two versions! Base version is just the Volt+ Amp. Deluxe version includes Volt+ Amp, Stepped Attenuator, and acrylic case.
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.
– 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 |
| Board Weight | 230g |
- Download Product Brochure
- Images, Drivers & Resources
See how we clean the power, by reviewing these documents:
- Input Ripple – 1A
- Input Ripple – 3A
- Output Ripple – 1A
- Output Ripple – 3A
All Allo products are FINAL SALE. We are not able to provide support on these items. For support, please visit Allo’s customer support forum.
| Version | Volt+ Only, Volt+ with Stepped Attenuator and Case |
|---|
Fast Shipping with Professional Packaging
Due to our longstanding partnership with UPS FedEx DHL as well as other major international carriers, we are able to provide a range of shipping options. Our warehouse staff is highly trained to package your goods exactly according to the specifications we provide. Your items will go through a thorough examination and will be safely packaged prior to being sent out. We deliver to thousands of customers every day from all over the world. The fact that we are determined to become the largest online retailer in the world is obvious. Warehouses and distribution centres can be located in Europe as well as in the USA.
It is important to note that orders with multiple items are subject to a processing period that is based to the particular item.
Prior to shipping, our team will perform an extensive inspection of the products you have ordered. Most orders today are shipped in 48 hours. The expected delivery time will be between 3 and 7 days.
Returns
Due to the multiple parties involved such as the factory and the warehouse, we cannot completely manage our stock. The actual levels of stock can change at any moment. It's possible that you may not receive your order once the order has been made.
Our policy is for 30 days. If 30 days have gone without a trace since the purchase however, we're unable to give you a return or exchange.
You are able to return a product in the event that it is not used and still in the same state as when you first received it. The item must be returned in its original packaging.
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