---
product_id: 809889377
title: "SMSL AL400 All-in-One Hi-Fi Decoder/Preamp/Phono Power Amp TPA3255 amp & CS43141 dac chip Full MQA, MM & MC Cartridge HDMI(eARC),for TV Home theater Subwoofer Desktop Bookshelf passive speakers(Black)"
brand: "s.m.s.l"
price: "R$5142"
currency: BRL
in_stock: true
reviews_count: 6
category: "S.M.S.L"
url: https://www.desertcart.com.br/products/809889377-smsl-al400-all-in-one-hi-fi-decoder-preamp-phono
store_origin: BR
region: Brazil
---

# Full MQA, DSD256 & PCM 32bit/768kHz lossless decoding 85W x 2 TPA3255 amp power Multi-interface: RCA, Bluetooth, USB, Optical, Coaxial, HDMI(eARC) SMSL AL400 All-in-One Hi-Fi Decoder/Preamp/Phono Power Amp TPA3255 amp & CS43141 dac chip Full MQA, MM & MC Cartridge HDMI(eARC),for TV Home theater Subwoofer Desktop Bookshelf passive speakers(Black)

**Brand:** s.m.s.l
**Price:** R$5142
**Availability:** ✅ In Stock

## Summary

> 🎶 Elevate your home audio game with pro-grade clarity and power — don’t just listen, experience!

## Quick Answers

- **What is this?** SMSL AL400 All-in-One Hi-Fi Decoder/Preamp/Phono Power Amp TPA3255 amp & CS43141 dac chip Full MQA, MM & MC Cartridge HDMI(eARC),for TV Home theater Subwoofer Desktop Bookshelf passive speakers(Black) by s.m.s.l
- **How much does it cost?** R$5142 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.br](https://www.desertcart.com.br/products/809889377-smsl-al400-all-in-one-hi-fi-decoder-preamp-phono)

## Best For

- s.m.s.l enthusiasts

## Why This Product

- Trusted s.m.s.l brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Tailor Your Soundstage:** 3-band EQ, phase adjustment & selectable low-pass filters for personalized tuning
- • **Universal Connectivity:** Connect effortlessly via RCA, Bluetooth, USB, Optical, Coaxial & HDMI(eARC)
- • **Dynamic 85W Stereo Output:** TPA3255 chip delivers powerful, low-distortion sound to drive any passive speaker
- • **All-in-One Audio Powerhouse:** Decoder, MM/MC phono preamp & amplifier combined for seamless setup
- • **Master-Grade Sound Fidelity:** Supports full MQA, DSD256 & 32bit/768kHz PCM for pristine audio clarity

## Overview

The SMSL AL400 is a sleek, black all-in-one Hi-Fi decoder, preamp, and power amplifier featuring the TPA3255 amp and CS43141 DAC chip. It supports full MQA, DSD256, and 32bit/768kHz PCM lossless audio decoding, delivering 85W x 2 low-distortion stereo output. With versatile connectivity including HDMI(eARC), Bluetooth, USB, optical, coaxial, and RCA, it seamlessly integrates with turntables, TVs, and passive speakers. Its professional-grade equalizer and soundstage tuning options allow precise audio customization, making it a top-tier choice for audiophiles and home theater enthusiasts alike.

## Description

desertcart.com: SMSL AL400 All-in-One Hi-Fi Decoder/Preamp/Phono Power Amp TPA3255 amp & CS43141 dac chip Full MQA, MM & MC Cartridge HDMI(eARC),for TV Home theater Subwoofer Desktop Bookshelf passive speakers(Black) : Industrial & Scientific

Review: Excellent for it's purpose - Can't say enough. Enjoying the article. Only thing I didn't think about was adjusting the listening experience. Have to be up close to change settings. Wish it had memory to know what settings I use for the different inputs. But overall pretty cool stuff
Review: Recomiendo - Excelente amp, 100% recomendado

## Features

- Three-in-one: The AL400 integrates a decoder, MM/MC phono preamp, and power amplifier into one unit. It can be directly connected to a turntable and synchronized with a TV via eARC (eARC).
- Lossless Decoding: The SMSL AL400 supports full MQA-CD decoding, DSD256, and PCM 32bit/768kHz decoding. It preserves high-resolution audio details, delivering near-original master sound quality.
- Powerful Low-Distortion Amplification: Equipped with a TPA3255 chip, it delivers 85W x 2 power output (THD+N 0.003%) at 8Ω load. Drives bookshelf/floorstanding speakers for dynamic, noise-free audio.
- Professional Equalizer and Soundstage Tuning: A 3-band equalizer (adjustable frequency, gain, and Q value), 0-180° phase adjustment, and 4 selectable low-pass filters. The sound can be fine-tuned according to speakers and personal preferences.
- Multi-functional interfaces: The AL400 is equipped with RCA, Bluetooth, USB, optical, coaxial, phono amplifier and HDMI (eARC) interfaces, supporting universal connectivity and lossless audio transmission, allowing you to easily connect any audio device.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0GJSS36F9 |
| Audio Output Mode | Stereo, Surround |
| Audio Output Type | Bluetooth, Optical, RCA, Speakers |
| Best Sellers Rank | #75,496 in Electronics ( See Top 100 in Electronics ) #13 in Home Audio Phono Preamps |
| Brand | S.M.S.L |
| Built-In Media | remote control |
| Color | Black |
| Compatible Devices | Speaker, Tablet, Personal Computer, Television, Amplifier, Smartphone, Game Console |
| Connectivity Technology | RCA, USB, optical, coaxial, HDMI |
| Connector Type | RCA, USB, Optical, Coaxial, HDMI |
| Controller Type | TV Remote, Bluetooth |
| Customer Reviews | 4.4 out of 5 stars 8 Reviews |
| Manufacturer | S.M.S.L |
| Mfr Part Number | AL400 |
| Model Number | B0GJSS36F9 |
| Number of Channels | 7 |
| Other Special Features of the Product | eARC |
| Output Power | 85 Watts |
| Output Wattage | 85 Watts |
| Special Feature | eARC |
| Surround Sound Channel Configuration | 5.1 |
| Total HDMI Ports | 1 |
| Total Number of HDMI Ports | 1 |
| Video Encoding | H.264, H.265/HEVC |
| Wireless Technology | Bluetooth |

## Product Details

- **Audio Output Mode:** Stereo, Surround
- **Brand:** S.M.S.L
- **Compatible Devices:** Speaker, Tablet, Personal Computer, Television, Amplifier, Smartphone, Game Console
- **Connectivity Technology:** RCA, USB, optical, coaxial, HDMI
- **Connector Type:** RCA, USB, Optical, Coaxial, HDMI
- **Controller Type:** TV Remote, Bluetooth
- **Special Feature:** eARC
- **Surround Sound Channel Configuration:** 5.1
- **Total HDMI Ports:** 1
- **Video encoding:** H.264, H.265/HEVC

## Images

![SMSL AL400 All-in-One Hi-Fi Decoder/Preamp/Phono Power Amp TPA3255 amp & CS43141 dac chip Full MQA, MM & MC Cartridge HDMI(eARC),for TV Home theater Subwoofer Desktop Bookshelf passive speakers(Black) - Image 1](https://m.media-amazon.com/images/I/41We48HPvJL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Excellent for it's purpose
*by S***W on June 6, 2026*

Can't say enough. Enjoying the article. Only thing I didn't think about was adjusting the listening experience. Have to be up close to change settings. Wish it had memory to know what settings I use for the different inputs. But overall pretty cool stuff

### ⭐⭐⭐⭐⭐ Recomiendo
*by E***O on June 1, 2026*

Excelente amp, 100% recomendado

### ⭐⭐⭐⭐ SMSL AL400
*by M***L on January 16, 2026*

abbastanza piccolo e carino, suono dettagliato, un buon suono tra l'altro regolabile con Eq e qui iniziano i dubbi, tante regolazioni e tante possibilità ma in cinese o in inglese, come il manuale, non c'è traccia di italiano. con le mie oberon 3 è fantastico arrivo a 30/40 di volume massimo e già si sente forte senza scaldare eccessivamente. il display è chiaro ma non a colori come mi pareva di aver letto, comunque a mio giudizio personale prestazioni sonore superiori a wiim amp. tanti dubbi su menù regolazioni e eventual8 aggiornamenti visto che manca la connessione di rete. per ora lo provo avrei preferito cose più semplici come controllo toni tramite banali manopole ma così va la moda oggi.

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**Shop now:** [https://www.desertcart.com.br/products/809889377-smsl-al400-all-in-one-hi-fi-decoder-preamp-phono](https://www.desertcart.com.br/products/809889377-smsl-al400-all-in-one-hi-fi-decoder-preamp-phono)

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*Product available on Desertcart Brazil*
*Store origin: BR*
*Last updated: 2026-07-03*