---
product_id: 726394520
title: "3e Audio A7 TPA3255 PBTL Next-gen HiFi Stereo Amplifier with Enhanced PFFB Professional Amplifier with 48V/5A Power Supply"
brand: "generic"
price: "€ 624.12"
currency: EUR
in_stock: true
reviews_count: 8
category: "Generic"
url: https://www.desertcart.hr/products/726394520-3e-audio-a7-tpa3255-pbtl-next-gen-hifi-stereo-amplifier
store_origin: HR
region: Croatia
---

# 48V/5A high-efficiency power supply 250W dual-channel output power Op-amp swappable design for custom sound 3e Audio A7 TPA3255 PBTL Next-gen HiFi Stereo Amplifier with Enhanced PFFB Professional Amplifier with 48V/5A Power Supply

**Brand:** generic
**Price:** € 624.12
**Availability:** ✅ In Stock

## Summary

> 🎧 Elevate your sound game with the ultimate HiFi amplifier experience!

## Quick Answers

- **What is this?** 3e Audio A7 TPA3255 PBTL Next-gen HiFi Stereo Amplifier with Enhanced PFFB Professional Amplifier with 48V/5A Power Supply by generic
- **How much does it cost?** € 624.12 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/726394520-3e-audio-a7-tpa3255-pbtl-next-gen-hifi-stereo-amplifier)

## Best For

- generic enthusiasts

## Why This Product

- Trusted generic brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **DIY Audio Mastery:** Easily swap op-amps without opening the chassis to tailor your sound signature effortlessly.
- • **Precision Redefined:** Industry-leading 0.0003% THD+N at 5W output for crystal-clear audio fidelity.
- • **Seamless Integration:** Auto audio sensing and volume bypass mode ensure pure, distortion-free signal flow from DAC to speakers.
- • **Power Meets Flexibility:** Robust 48V/5A power supply delivering 250W stereo output to drive any speaker setup.
- • **Engineered for Excellence:** Premium capacitors, inductors, and optimized PCB design extend frequency response to 35kHz with minimal deviation.

## Overview

The 3e Audio A7 TPA3255 PBTL is a next-gen HiFi stereo amplifier featuring a powerful 48V/5A supply and 250W output. It boasts ultra-low distortion (0.0003% THD+N), extended frequency response up to 35kHz, and a user-friendly op-amp swap system for personalized audio tuning. Designed with premium components and advanced post-filter feedback technology, it delivers professional-grade sound clarity and flexibility for audiophiles and DIY enthusiasts alike.

## Description

desertcart.com: 3e Audio A7 TPA3255 PBTL Next-gen HiFi Stereo Amplifier with Enhanced PFFB Professional Amplifier with 48V/5A Power Supply : Electronics

Review: Class D Power Amplifier - This is the best class D stereo amplifier based around the TI TPA3255 amplifier module. I use the Mono versions with 48v 10a separate GaN smps as my reference amplifiers. Less than 10ppm THD & IM and noise below 15uv! 👍🏼
Review: it rocks - its beefy. awesome performance. awesome sound. oh i love it. plenty of power. sort of pricey. very nice. rocks my klipsch speakers 1 set of three. ill keep it. good sound stage.

## Features

- The A7 amplifier are the first-generation finished amplifier we make that integrated with multi-function that based on user needs like op-amp changeable and auto audio sensing technology which bring more flexibles for various use cases. The A7 amplifier are also use high quality capacitors, inductors and also implemented high quality PCB design to ensure its highest performance
- User can easier to use with other DAC source to reduce the complex operation of the whole audio system
- Our engineering team put many efforts on optimizing the post filter feedback design based on Ti ’s recommendation and achieved a very great performance with 0.0003% THD+N(A-wt) at atypical 5W output, this is the best data basedonTPA3255 design in the world (as of Oct-2024), in the meanwhile, frequency response also had been extended to 35KHz within 0.5dB deviation
- For some user that used to use their DAC source to fully control the volume, there is an option that we add into this product is volume bypass mode, which disable protentional meter in audio path to fully ensure a pure audio signal chain from the DAC source to the amplifier output till speaker end, achieving the ultimate sound quality experience
- Furthermore, this product support op-amp change to maximum user ’s diy hobby as they experienced that different op-amp bring them different sound perception, an easier way without opens the chassis is implemented in our design to save user ’s operation process and also reduce the risk of disassembly

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0F8HG4KKN |
| Best Sellers Rank | #67,747 in Electronics ( See Top 100 in Electronics ) #431 in Audio Component Amplifiers |
| Brand | Generic |
| Date First Available | April 21, 2025 |
| Item Weight | 2.2 pounds |
| Item dimensions L x W x H | 6.69 x 6.61 x 1.81 inches |
| Item model number | A7 With 48V/5A Power Adapter |
| Manufacturer | 3eAudio |
| Material | Electronic Components |
| Maximum Supply Voltage | 48 Volts (DC) |
| Minimum Supply Voltage | 48 Volts (DC) |
| Mounting Type | Freestanding |
| Number of Channels | 2 |
| Output Power | 250 Watts |
| Product Dimensions | 6.69 x 6.61 x 1.81 inches |
| Voltage | 48 Volts |

## Product Details

- **Item dimensions L x W x H:** 6.69 x 6.61 x 1.81 inches
- **Manufacturer:** 3eAudio
- **Maximum Supply Voltage:** 48 Volts (DC)
- **Minimum Supply Voltage:** 48 Volts (DC)
- **Voltage:** 48 Volts

## Images

![3e Audio A7 TPA3255 PBTL Next-gen HiFi Stereo Amplifier with Enhanced PFFB Professional Amplifier with 48V/5A Power Supply - Image 1](https://m.media-amazon.com/images/I/61wM+9hhZmL.jpg)
![3e Audio A7 TPA3255 PBTL Next-gen HiFi Stereo Amplifier with Enhanced PFFB Professional Amplifier with 48V/5A Power Supply - Image 2](https://m.media-amazon.com/images/I/51-PXFsKZ0L.jpg)
![3e Audio A7 TPA3255 PBTL Next-gen HiFi Stereo Amplifier with Enhanced PFFB Professional Amplifier with 48V/5A Power Supply - Image 3](https://m.media-amazon.com/images/I/51ruVSIHBXL.jpg)
![3e Audio A7 TPA3255 PBTL Next-gen HiFi Stereo Amplifier with Enhanced PFFB Professional Amplifier with 48V/5A Power Supply - Image 4](https://m.media-amazon.com/images/I/61w8CRDlSUL.jpg)
![3e Audio A7 TPA3255 PBTL Next-gen HiFi Stereo Amplifier with Enhanced PFFB Professional Amplifier with 48V/5A Power Supply - Image 5](https://m.media-amazon.com/images/I/71n7BYX7YhL.jpg)

## Available Options

This product comes in different **Model** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Class D Power Amplifier
*by D***K on February 23, 2026*

This is the best class D stereo amplifier based around the TI TPA3255 amplifier module. I use the Mono versions with 48v 10a separate GaN smps as my reference amplifiers. Less than 10ppm THD & IM and noise below 15uv! 👍🏼

### ⭐⭐⭐⭐⭐ it rocks
*by J***N on November 26, 2025*

its beefy. awesome performance. awesome sound. oh i love it. plenty of power. sort of pricey. very nice. rocks my klipsch speakers 1 set of three. ill keep it. good sound stage.

### ⭐⭐⭐⭐⭐ Crystal clear, dynamic, powerful, and detailed
*by L***H on June 23, 2025*

The 3e Audio A7 is crystal clear, dynamic, powerful, and detailed—kinda blows my mind. It’s hands down the best amp I’ve ever had in my system. Worth every penny, no question. I was thinking about upgrading my JBL Studio 530s, but now, I’m not so sure I need to. This A7 is a major upgrade for me, makes my speakers sing in a way I didn’t expect. All amps don’t sound the same. I’m not some audiophile, too cheap for that fancy stuff, but I can tell the difference. I had a little issue with my setup, thought it might be the A7 at first. So, I emailed 3e Audio support, and wow, they got back fast. They were super responsive, way above and beyond the call of duty. Turns out it was my setup messing up, not the amp. I really appreciate their patience and how they stuck with me.

## Frequently Bought Together

- 3e Audio A7 Stereo Amplifier Home Audio HiFi with Enhanced PFFB TI TPA3255 Professional for Desktop Home Theater with 48V Power Supply
- FosPower (2 Pack) 2 RCA M/M Stereo Audio Cable [24K Gold Plated | Copper Core] 2RCA Male to 2RCA Male [Left/Right] Premium Sound Quality Plug - 3FT
- S.M.S.L SU-1 MQA MQA-CD Audio Decoder AK4493S XU316 768kHz/32Bit DSD512 Hi-Res DAC

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*Product available on Desertcart Croatia*
*Store origin: HR*
*Last updated: 2026-03-02*