---
product_id: 726394520
title: "- 3e Audio A7 Next-Gen HiFi Stereo Amplifier | Home Theater Amplifier | TPA3255 Chip 2x250W PBTL with Enhanced PFFB | 48V5A Power Supply for Bookshelf Speakers"
brand: "generic"
price: "€ 591.40"
currency: EUR
in_stock: true
reviews_count: 8
category: "Generic"
url: https://www.desertcart.hr/products/726394520-3e-audio-a7-next-gen-hifi-stereo-amplifier-home-theater
store_origin: HR
region: Croatia
---

# 2x250W PBTL output power Swappable op-amp for custom sound Auto audio sensing & volume bypass - 3e Audio A7 Next-Gen HiFi Stereo Amplifier | Home Theater Amplifier | TPA3255 Chip 2x250W PBTL with Enhanced PFFB | 48V5A Power Supply for Bookshelf Speakers

**Brand:** generic
**Price:** € 591.40
**Availability:** ✅ In Stock

## Summary

> 🎧 Elevate your audio game with precision power and DIY flair!

## Quick Answers

- **What is this?** - 3e Audio A7 Next-Gen HiFi Stereo Amplifier | Home Theater Amplifier | TPA3255 Chip 2x250W PBTL with Enhanced PFFB | 48V5A Power Supply for Bookshelf Speakers by generic
- **How much does it cost?** € 591.40 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-next-gen-hifi-stereo-amplifier-home-theater)

## 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

- • **Smart & Seamless:** Auto audio sensing powers the amp on/off intelligently, while volume bypass mode ensures a pure, unaltered signal chain from DAC to speakers.
- • **Tailor Your Sound:** Easily swap op-amps without opening the chassis—perfect for audiophile DIYers craving personalized audio signatures.
- • **Compact & Versatile:** Sleek bookshelf-friendly design with flexible RCA/XLR inputs and support for 2-ohm loads, ideal for modern home theaters and high-end stereo setups.
- • **Powerhouse Performance:** Delivers a robust 2x250W output with ultra-low distortion (0.0003% THD+N) for crystal-clear sound that commands attention.
- • **Premium Components Inside:** Equipped with ELNA Silmic II capacitors, TDK film caps, and flat wire inductors for superior noise reduction and pristine audio fidelity.

## Overview

The 3e Audio A7 Next-Gen HiFi Stereo Amplifier harnesses dual TPA3255 chips delivering 2x250W clean power with world-class 0.0003% distortion. Featuring swappable op-amps, auto audio sensing, and premium audio-grade components, it offers millennial professionals a customizable, high-fidelity sound experience in a compact, stylish form factor perfect for bookshelf speakers and home theaters.

## Description

Product description Selected Core Materias Crafted Masterpieces Flat Wire Inductor (ex se version) Better linearity reduce distrotion condictions. Up to 6000uF Buck Capacitors Lower ESR to reduce ripple and noise The large capacitors used in conjunction with each full-bridge,lower ESR with muilti caps place in parallell,achieve better reducing switching noise and also bus pumping in heavy load,thus obtain a better THD in high power output condiction. TDK Film Capacitors High pulse strength for LC demodulation High pulse and reliablity components for the LC filter is critical to meet the desired audio performance,efficiency and EMI requirements,multi film caps are used to achieve best demodulate signal then restore the real music of sound. ELNA Silmic II HiFi grade capacitors for audio SILMICIlseries are Elna's highest grade audio capacitors that exhibit superior acoustic characteristics. the extreme softness of silk can mitigate vibrational energy,sound is possible than before when these caps were subjected to use obtained high-quality sound. Swappable Op-amp Plug and play enjoy different perception 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. Dual TPA3251/5(ex se version) PBTL config for best performance Implemanted by two TPA3251/5 chip configed as PBTL mode, reduce internal inherent resistance of full bridge MOSFET,maintain highest continues output power and also reduce totall power lost and minimum thermal dissipation,furthermore it can support down to 2ohm load condiction. Operations： 1. Connect the passive speaker to the speaker output terminal (please ensure the priority is correct). 2. Connect the audio source to the RCA or XLR(TRS) input. 3. Connect the power supply ( MUST within product specification range). 4. select the RCA/XLR mode for desired input source. 5. Turn the volume knob clockwise to adjust to the appropriate volume. Note ● It is STRONG suggest connect power supply cable before power on the device. ● product will auto power on when power supply is on. ● Auto audio sensing power on/off can be disable and enable by user, in standby mode > long push volume knob 5S until RCA LED flash 3S then off, auto on/off disable > long push volume knob 5S until XLR LED flash 3S then off, auto on/off enable

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: Clean low distortion power amp that integrates well with Wiim Ultra - Initially I was a bit underwhelmed with this amp when I tried it with my main music system that normally has a 250 watt per channel Adcom amplifier driving NHT tower speakers. I think my first mistake was not level matching it with the Adcom amp. I moved the A7 to my small room home theater where I do not use surround sound. I am must running Left and Right stereo speakers with a subwoofer and using Wiim Ultra preamp/streamer. The A7 works beautifully in this application and I could not be more pleased with the sound and the seamless way it integrates with the Wiim Ultra. Highly recommended especially when it goes on sale.

## 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 | #59,512 in Electronics ( See Top 100 in Electronics ) #372 in Audio Component Amplifiers |
| Brand Name | Generic |
| Customer Reviews | 4.8 out of 5 stars 15 Reviews |
| Included Components | A7 Power Amplifier x1；48V5A Power Adapter x1；User Manual x1 |
| Item Dimensions | 6.69 x 6.61 x 1.81 inches |
| Item Weight | 1 Kilograms |
| Item dimensions L x W x H | 6.69 x 6.61 x 1.81 inches |
| Manufacturer | 3eAudio |
| Material Type | Electronic Components |
| Maximum Supply Voltage | 48 Volts (DC) |
| Minimum Supply Voltage | 48 Volts (DC) |
| Model | A7 With 48V/5A Power Adapter |
| Mounting Type | Freestanding |
| Number of Channels | 2 |
| Output Power | 250 Watts |
| Part Number | A7 |
| 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 Next-Gen HiFi Stereo Amplifier | Home Theater Amplifier | TPA3255 Chip 2x250W PBTL with Enhanced PFFB | 48V5A Power Supply for Bookshelf Speakers - Image 1](https://m.media-amazon.com/images/I/51V6pt3wDGL.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! 👍🏼

### ⭐⭐⭐⭐⭐ Clean low distortion power amp that integrates well with Wiim Ultra
*by M***5 on November 28, 2025*

Initially I was a bit underwhelmed with this amp when I tried it with my main music system that normally has a 250 watt per channel Adcom amplifier driving NHT tower speakers. I think my first mistake was not level matching it with the Adcom amp. I moved the A7 to my small room home theater where I do not use surround sound. I am must running Left and Right stereo speakers with a subwoofer and using Wiim Ultra preamp/streamer. The A7 works beautifully in this application and I could not be more pleased with the sound and the seamless way it integrates with the Wiim Ultra. Highly recommended especially when it goes on sale.

### ⭐⭐⭐⭐⭐ Impressive!
*by E***E on October 17, 2025*

I have had this for 1 day and so far all I can say is “Wow!” It sounds better and fuller sounding than my Yamaha as-501. This sucker cranks and I have not been able to turn it up past 1/4 with Klipsch rp-600m v1. I’m getting rid of the Yamaha and keeping this. This is the new main amplifier. I think I may get a Fosi preamp for a little more control and bass and treble adjustment. Hopefully it lasts a long time. I guess we’ll see. Impressive!

## 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: 2026-07-12*