---
product_id: 638606333
title: "S.M.S.L A50 PRO HiFi Power Amplifier, High/Low Pass F, 2.1-Channel, Infineon's MA12070P Chip, Bluetooth 5.0/USB/Optical/HDMI/AUX input Passive subwoofer with adjustable volume, with Remote Control"
brand: "s.m.s.l"
price: "S/.993"
currency: PEN
in_stock: true
reviews_count: 13
category: "S.M.S.L"
url: https://www.desertcart.pe/products/638606333-s-m-s-l-a50-pro-hifi-power-amplifier-high
store_origin: PE
region: Peru
---

# 100W passive subwoofer power Bluetooth 5.0 + USB-C + HDMI ARC + Optical + AUX 10-point adjustable high/low pass filters S.M.S.L A50 PRO HiFi Power Amplifier, High/Low Pass F, 2.1-Channel, Infineon's MA12070P Chip, Bluetooth 5.0/USB/Optical/HDMI/AUX input Passive subwoofer with adjustable volume, with Remote Control

**Brand:** s.m.s.l
**Price:** S/.993
**Availability:** ✅ In Stock

## Summary

> 🎧 Elevate your sound game—because your ears deserve the best.

## Quick Answers

- **What is this?** S.M.S.L A50 PRO HiFi Power Amplifier, High/Low Pass F, 2.1-Channel, Infineon's MA12070P Chip, Bluetooth 5.0/USB/Optical/HDMI/AUX input Passive subwoofer with adjustable volume, with Remote Control by s.m.s.l
- **How much does it cost?** S/.993 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.pe](https://www.desertcart.pe/products/638606333-s-m-s-l-a50-pro-hifi-power-amplifier-high)

## 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

- • **Custom EQ Presets:** Multiple EQ modes plus ±9 level bass and treble adjustments let you tailor your audio vibe effortlessly.
- • **Compact Powerhouse:** Lightweight yet robust 100W output with Infineon’s MA12070P chip delivers hi-fi sound that fills your space.
- • **Precision Bass Control:** Fine-tune your subwoofer volume independently for a perfectly balanced 2.1 soundstage.
- • **Versatile Connectivity:** Seamlessly connect all your devices with Bluetooth 5.0, USB-C driver-free input, HDMI ARC, optical, and AUX ports.
- • **Intuitive Digital Interface:** Single rotary encoder with a clear 3-digit display makes tweaking settings a breeze—no tech degree needed.

## Overview

The S.M.S.L A50 PRO is a compact, high-performance 2.1-channel HiFi power amplifier featuring Infineon's MA12070P chip. It offers 100W passive subwoofer output with independently adjustable volume and 10-point high/low pass filters for precise crossover control. Equipped with Bluetooth 5.0, USB-C, HDMI ARC, optical, and AUX inputs, it supports versatile device connectivity. Multiple EQ presets and bass/treble adjustments provide customizable sound profiles, all managed via an intuitive rotary encoder and remote control. Ideal for audiophiles seeking a modern, flexible amplifier with premium sound quality and easy setup.

## Description

S.M.S.L A50 PRO HiFi Power Amplifier, High/Low Pass F, 2.1-Channel, Infineon's MA12070P Chip, Bluetooth 5.0/USB/Optical/HDMI/AUX input Passive subwoofer with adjustable volume, with Remote Control : desertcart.co.uk: Electronics & Photo

Review: A rare quality 2.1 amp with a passive sub output - I needed this. - Very well constructed for the price and compact as well, I was using a digital amp with analogue controls, this amp is digital all the way with the very intuitive single rotary encoder knob and the three digit display. Once you get to know the different display menu modes, tweaking with just the front knob is a breeze. The various eq modes, bass, treble, tone presents, high and low pass filters and subwoofer volume are quite subtle to my recollection but it's well worth spending a bit of time tweaking them to your tastes as the amp has virtually no problems filling my listening room with a very balanced 3d stereo image soundstage whether using the excellent bluetooth receiver or the optical in. I have very little use for the usb dac in, 3.5mm jack in and the HDMI ARC, I have a 200 cd changer, media streamer and a linear tracking turntable connected to an Arylic BP50 preamp feeding the S.M.S.L. via an optical cable . Then out of the stereo L & R and subwoofer outputs to a pair of Wharfedale Modus Cubes and a matching pair of Mission 73ps passive subwoofers. The remote control is a nice addition and it seems to work well but my room is so small I can just reach over to the amp and use the rotary controller. I bought this amp because it had a passive sub output and an optical in - these and everything else works flawlessly - a great little modern amp for a bargain price.
Review: Great value - Used it to connect two Ruark shelf speakers to my TV via audio cable/ Line in Amazing improvement in sound quality ( over TV internal speakers) Also easily connects to my iPhone via Bluetooth. Remote works well. Great value for the price (haven’t used the subwoofer connection) very happy with it

## Features

- Getting ten crossover frequency points adjustable for High-pass and low-pass each. Subwoofer's volume can set it separetely,which perfectly can use well for different main speaker and passive subwoofer and build your real 2.1 speaker system.
- Passive subwoofer with adjustable volume and high power: The A50 Pro provides 100 watts of passive bass output power. lt effortlessly handles various speakers and scenarios, allowing you to adjust the subwoofer volume from S00 to S99 as desired.
- Multiple EQ presets：This digital amplifier features multiple EQ presets, allowing it to adapt to various music styles and provide a diverse listening experience. Additionally, it has bass and treble adjustments, with a customizable range of ±9 levels.
- Higher versatility Supports multiple devices：USB-Cport supports driver-free use.HDMl (ARC) is compatible with most televisions and also equipped with optical input and AUXinput. it's suitable for almost all audio connections.
- 12-month warranty, you can return the item or replace a new one if you have any problems.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0D1G7R489 |
| Batteries Required? | No |
| Batteries included? | No |
| Best Sellers Rank | 14,322 in Electronics & Photo ( See Top 100 in Electronics & Photo ) 15 in AV Receivers & Amplifiers |
| Customer Reviews | 4.1 4.1 out of 5 stars (256) |
| Date First Available | 16 April 2024 |
| Included components | remote control |
| Item Weight | 1.1 kg |
| Item model number | A50 PRO |
| Manufacturer | S.M.S.L |
| Package Dimensions | 32.21 x 19.81 x 7.29 cm; 1.1 kg |
| Part number | A50 |
| Plug profile | freestanding |
| Specification met | Hifi |
| Voltage | 24 Volts |

## Product Details

- **Brand:** S.M.S.L
- **Manufacturer:** S.M.S.L
- **Mounting type:** freestanding
- **Number of channels:** 2
- **Voltage:** 24 Volts

## Images

![S.M.S.L A50 PRO HiFi Power Amplifier, High/Low Pass F, 2.1-Channel, Infineon's MA12070P Chip, Bluetooth 5.0/USB/Optical/HDMI/AUX input Passive subwoofer with adjustable volume, with Remote Control - Image 1](https://m.media-amazon.com/images/I/61r5x4MRIUL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ A rare quality 2.1 amp with a passive sub output - I needed this.
*by K***J on 3 December 2025*

Very well constructed for the price and compact as well, I was using a digital amp with analogue controls, this amp is digital all the way with the very intuitive single rotary encoder knob and the three digit display. Once you get to know the different display menu modes, tweaking with just the front knob is a breeze. The various eq modes, bass, treble, tone presents, high and low pass filters and subwoofer volume are quite subtle to my recollection but it's well worth spending a bit of time tweaking them to your tastes as the amp has virtually no problems filling my listening room with a very balanced 3d stereo image soundstage whether using the excellent bluetooth receiver or the optical in. I have very little use for the usb dac in, 3.5mm jack in and the HDMI ARC, I have a 200 cd changer, media streamer and a linear tracking turntable connected to an Arylic BP50 preamp feeding the S.M.S.L. via an optical cable . Then out of the stereo L & R and subwoofer outputs to a pair of Wharfedale Modus Cubes and a matching pair of Mission 73ps passive subwoofers. The remote control is a nice addition and it seems to work well but my room is so small I can just reach over to the amp and use the rotary controller. I bought this amp because it had a passive sub output and an optical in - these and everything else works flawlessly - a great little modern amp for a bargain price.

### ⭐⭐⭐⭐⭐ Great value
*by D***S on 10 January 2026*

Used it to connect two Ruark shelf speakers to my TV via audio cable/ Line in Amazing improvement in sound quality ( over TV internal speakers) Also easily connects to my iPhone via Bluetooth. Remote works well. Great value for the price (haven’t used the subwoofer connection) very happy with it

### ⭐⭐⭐⭐ Causes interference on the UK amateur radio HF frequencies.
*by S***Y on 14 January 2026*

I bought this for a present for my husband so this is his review. For it's price this DAC amplifier is very good. I replaced a massive Onkyo TN414 AV amplifier with this teeny device. The sound quality is very good and plenty loud enough. The remote control is a bit slow. The number of inputs is excellent for the price. I do however have one issue that would not affect most users. I am an amateur radio operator (HAM) and this DAC produces severe RF interference across most of the bands from the speaker cables. It should adhere to UK interference compliance but quite obviously doesn't. I have emailed S.M.S.L but have not yet received a reply.

## Frequently Bought Together

- S.M.S.L A50 PRO HiFi Power Amplifier, High/Low pass filter 2.1-Channel, Infineon's MA12070P Chip, Bluetooth 5.0/USB/Optical/HDMI/AUX input Passive subwoofer with adjustable volume, with Remote Control
- FosPower Banana Plugs 2 Pairs / 4 pcs, Closed Screw 24K Gold Plated Banana Speaker Plug Connectors for Speaker Wire, Wall Plate, Home Theater, Audio/Video Receiver, Amplifiers and Sound Systems
- Amazon Basics Speaker Cable, Easy Assembly, 16-Gauge, Bronze, 100 ft

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*Product available on Desertcart Peru*
*Store origin: PE*
*Last updated: 2026-03-13*