---
product_id: 258607329
title: "S.M.S.L SH-9 Headphone Amplifier THX AAA Technology RCA/XLR Input 6.35MM Balanced Headphone Amplifier"
brand: "s.m.s.l"
price: "NT$898"
currency: TWD
in_stock: false
reviews_count: 8
url: https://www.desertcart.tw/products/258607329-s-m-s-l-sh-9-headphone-amplifier-thx-aaa
store_origin: TW
region: Taiwan
---

# THX AAA Tech Balanced Output 6W Power S.M.S.L SH-9 Headphone Amplifier THX AAA Technology RCA/XLR Input 6.35MM Balanced Headphone Amplifier

**Brand:** s.m.s.l
**Price:** NT$898
**Availability:** ❌ Out of Stock

## Summary

> 🎶 Elevate Your Audio Game!

## Quick Answers

- **What is this?** S.M.S.L SH-9 Headphone Amplifier THX AAA Technology RCA/XLR Input 6.35MM Balanced Headphone Amplifier by s.m.s.l
- **How much does it cost?** NT$898 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.tw](https://www.desertcart.tw/products/258607329-s-m-s-l-sh-9-headphone-amplifier-thx-aaa)

## 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

- • **Safety First:** Equipped with comprehensive protection features: DC, Over-Voltage, Over-Current, Short-Circuit, and Thermal.
- • **Precision Sound:** Enjoy a frequency response from 0.1Hz to 500kHz for crystal-clear audio.
- • **Tabletop Design:** Sleek and compact tabletop design fits seamlessly into any professional setup.
- • **Unleash the Power:** Experience 6 Watts of pure audio bliss, perfect for 16 Ohm headphones.
- • **Balanced Excellence:** Balanced stereo headphone output and line input for an immersive listening experience.

## Overview

The S.M.S.LSH-9 Headphone Amplifier is a high-performance audio device featuring THX AAA technology, delivering 6 Watts of power into 16 Ohm headphones. With a frequency response range of 0.1Hz to 500kHz and robust protection mechanisms, this amplifier ensures both superior sound quality and safety. Its balanced stereo output and compact tabletop design make it an ideal choice for audiophiles and professionals alike.

## Description

Note: Please press B key firstly when you using remote control, thanks  Features SNR>137dB THD<0.00006% Ultra-Compact Design, Perfect for Desktop Systems High Precision Resistors for Temperature Stability Pop-less Design with High-Quality Relays High precision and low noise 256 level relay volume control; In actual use, in order to make the volume more linear, the extra levels are shielded. 2 Positions Switchable Gain Control High-Eficiency Ultra-Low-Noise Power Supply 1.9 inch LCD display.  Specifications  Audio Section: Inputs:Balanced x1, Unbalanced x1 Outputs:Balanced x1, Unbalanced x1 Output Power:6W x 2(16Ω) 3W x 2(32Ω) 440mW x 2 (300Ω) 220mW x 2 (600Ω) SNR:137dB, A-Weighted Output Noise:1.9uV, A-Weighted THD+N:-123dB, 0.00006% (A-Weighted) THD+N:-117dB, 0.00013% (20-20kHz, 32Ω,-3dB) THD:-125dB, 0.00006%(1kHz, 16Ω, -3dB) Input Impedance:47kΩ Output Impedance:Near 0Ω Frequency Response:0.1Hz-500kHz(-3dB) Gain:Low(+0dB), High(+10dB)  General Section: Power supply voltage/frequency: AC100-240V, 50-60 Hz Power consumption(EN60065):24W Power consumption in standby mode:<0.1W Size:187.5x154x40(mm) Packing size: 282x232x79(mm) Weight:790g

## Features

- THXAAA-888 Headphone Amplfier with THX AAA Technology
- 6 Watts into 16 Ohm,3 Watts into 32 Ohm Headphones with lowest THD+N
- 0.1Hz to 500kHz(-3dB) Frequency Response
- Fully Protection with DC, Over-Voltage, Over-Current, Short-Circuit and Thermal Protection on Headphone Amplifier
- Balanced Stereo Headphone Output; Balanced Stereo Line Input

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Number of Channels | 2 |
| Package Type | box |
| Output Power | 6 Watts |
| Minimum Supply Voltage | 1E+2 Volts |
| Mounting Type | Tabletop |
| Voltage | 2.4E+2 Volts |
| Maximum Supply Voltage | 2.4E+2 Volts |
| Specification Met | En60065, Frequency Response, Thd |

## Product Details

- **Voltage:** 240 Volts
- **Manufacturer:** S.M.S.L
- **Maximum Supply Voltage:** 2.4E+2 Volts
- **Minimum Supply Voltage:** 1E+2 Volts
- **Mounting Type:** Tabletop

## Images

![S.M.S.L SH-9 Headphone Amplifier THX AAA Technology RCA/XLR Input 6.35MM Balanced Headphone Amplifier - Image 1](https://m.media-amazon.com/images/I/51tZNieez0L.jpg)
![S.M.S.L SH-9 Headphone Amplifier THX AAA Technology RCA/XLR Input 6.35MM Balanced Headphone Amplifier - Image 2](https://m.media-amazon.com/images/I/51rOdYKdjmL.jpg)
![S.M.S.L SH-9 Headphone Amplifier THX AAA Technology RCA/XLR Input 6.35MM Balanced Headphone Amplifier - Image 3](https://m.media-amazon.com/images/I/51HsEmogAeL.jpg)
![S.M.S.L SH-9 Headphone Amplifier THX AAA Technology RCA/XLR Input 6.35MM Balanced Headphone Amplifier - Image 4](https://m.media-amazon.com/images/I/51WKieDMHyL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Buy this headphone amp!
*by K***K on May 20, 2021*

Compared to other headphone amps in the same category with AAA tech, XLR inputs, XLR headphone output, and 3 or so watts of output, the SMSL SH-9 is an excellent build, especially with the remote (!!!) and LCD screen. The only thing this is missing is outputs to be used as a preamp, but I did not buy it for preamp use - I wanted the headphone amplification and only that, with high performance. This unit is a top notch performer with clean sound, super channel separation, and plenty of power. I drive a few different headphones with this, but I usually use an Audeze LCD-2 (with Phazor) and this amp is an excellent match. The sound signature is totally neutral and complete at all frequencies, which the LCD-2 needs with it's laid back nature. No extra color needed in the signal - just the pure clean source as desired. My only nitpick is that the volume knob is clicky, but the tech behind the volume adjustments is definitely worth the tradeoff - super accurate and 100% balanced from right to left channels. Highly recommended.

### ⭐⭐⭐⭐⭐ Has everything I want, and nothing I don’t want.
*by M***N on October 15, 2023*

I’ve gone through many headphone amps over the past decades, and this one is the best. I’ve recently compared it to two Topping amps, and it’s superior to both, with wider dynamic range, wider soundstage, and naturalness of sound. It has more than enough power to drive my Focal Stellias. I rarely turn it up past 50 when not in high gain mode.

### ⭐⭐⭐⭐ Very clear amp...
*by J***A on February 28, 2022*

This amplifier is good enough, it plays clear and doesn't add anything to your headphones sound. I know there is better sound out there, but for this price? I only own a sound card (was $150), a home theater amplifier (was $1100) and this amp (was $250), so cant really compare apples to apples. I own a pair of Sennheiser 660s and they sound great on this amplifier, just wish it had a little more bass and/or options on the amp itself. All in all, they sounded better than the sound card and worse than the home theater amp, so take that as you will.

## Frequently Bought Together

- S.M.S.L SH-9 Headphone Amplifier THX AAA Technology RCA/XLR Input 6.35MM Balanced Headphone Amplifier
- Cable Matters 2-Pack Premium Short XLR to XLR Cables - 3ft, Male to Female Microphone Cable, Oxygen-Free Copper (OFC) Mic Cord, Black
- S.M.S.L SU-9n ES9038PRO XMOS XU208 Bluetooth 5.0 SMSL DSD512 RCA/XLR LDAC APTX/HD Decoder High Resolution Audio DAC

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*Product available on Desertcart Taiwan*
*Store origin: TW*
*Last updated: 2026-01-26*