---
product_id: 120766745
title: "Gustard H20 Opamp Dual LM49720 Full Balanced Class A Headphone Amplifier Pre Amplifier (Silver)"
brand: "gustard"
price: "€ 2669.90"
currency: EUR
in_stock: false
url: https://www.desertcart.sk/products/120766745-gustard-h20-opamp-dual-lm49720-full-balanced-class-a-headphone
store_origin: SK
region: Slovakia
---

# Full balanced Class A architecture 6000mW max output power Ultra-low distortion <0.0005% Gustard H20 Opamp Dual LM49720 Full Balanced Class A Headphone Amplifier Pre Amplifier (Silver)

**Brand:** gustard
**Price:** € 2669.90
**Availability:** ❌ Out of Stock

## Summary

> 🎶 Elevate your audio game with Gustard H20 — where power meets precision in perfect harmony.

## Quick Answers

- **What is this?** Gustard H20 Opamp Dual LM49720 Full Balanced Class A Headphone Amplifier Pre Amplifier (Silver) by gustard
- **How much does it cost?** € 2669.90 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.sk](https://www.desertcart.sk/products/120766745-gustard-h20-opamp-dual-lm49720-full-balanced-class-a-headphone)

## Best For

- gustard enthusiasts

## Why This Product

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

## Key Features

- • **Powerhouse Output:** Delivers up to 6000mW distortion-free power for headphones from 32Ω to 600Ω, ensuring immersive, crystal-clear sound.
- • **Dual LM49720 Op Amps:** Utilizes two independent dual op amps per channel for symmetrical, high-precision amplification.
- • **Versatile Connectivity:** Simultaneous single-ended RCA and balanced XLR inputs with separate preamp outputs for seamless integration with active speakers or downstream gear.
- • **Precision Volume Control:** Matrix relay volume system guarantees perfectly matched 4-channel volume levels, delivering consistent soundstage balance.
- • **Pure Balanced Signal Path:** Native full-balanced design from input to output eliminates noise and signal loss, preserving pristine audio fidelity.

## Overview

The Gustard H20 is a premium dual LM49720 full balanced Class A headphone amplifier and preamplifier, engineered for audiophiles and professionals. Featuring a native full-balanced architecture, ultra-low distortion (<0.0005%), and a maximum output power of 6000mW into 32Ω, it supports both single-ended and balanced inputs with dedicated preamp outputs. Its advanced matrix relay volume control ensures flawless channel matching, making it a top-tier choice for high-fidelity headphone listening and audio system integration.

## Description

Product description Color:Black Specification Analog Input: RCA One group of standard input. Sensitivity：2Vrms(Typical) ；Impedance:47kΩ XLR Two groups of balanced inputs. Sensitivity：+18dBu(Typical) ；Impedance:10kΩ Preamp (Rear Output) Output(XLR)： Output Impedance:100Ω Frequency response：20-80kHz /-0.1dB SNR：>122dB Crosstalk：-120dB @ 1kHz THD+N：120dB Crosstalk：-120dB @ 1kHz THD+N：<0.0005% @6000mW into 32Ω LOAD IMD：<0.0005% @6000mW into 32Ω LOAD Maximum distortionless output power:6000mW into 32Ω LOAD Maximum output power:12000mW @32Ω (THD=1%) Load power： 64Ω 5360mW 150Ω 2680mW 300Ω 1340mW 600Ω 670mW Others： Power supply：AC 115V/230V 50/60Hz Power consumption：about 50W Size：330mm * 65mm * 260mm Weight：7Kg（including Packing boxes）

## Features

- Each channel uses two independent amplifying units to form a symmetrical output line, Single-ended and balanced output are at the same time ;
- The front class consists of a single 4-way amplifier circuit, using two LM49720 dual op amp;
- Have a separate pre-stage output, can be connected to active speakers or pure after the class;
- The use of matrix relay volume, effective to ensure that 4-way volume unanimous;
- Native full-balanced architecture, from input to volume control to before and after zoom, without any conversion, complete four-way architecture;

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07L1Q7WQN |
| Date First Available | December 1, 2018 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 15.4 pounds |
| Manufacturer | Gustard |
| Package Dimensions | 12.99 x 10.24 x 2.56 inches |

## Images

![Gustard H20 Opamp Dual LM49720 Full Balanced Class A Headphone Amplifier Pre Amplifier (Silver) - Image 1](https://m.media-amazon.com/images/I/61-3wKS6WHL.jpg)
![Gustard H20 Opamp Dual LM49720 Full Balanced Class A Headphone Amplifier Pre Amplifier (Silver) - Image 2](https://m.media-amazon.com/images/I/71X2VBPXWUL.jpg)
![Gustard H20 Opamp Dual LM49720 Full Balanced Class A Headphone Amplifier Pre Amplifier (Silver) - Image 3](https://m.media-amazon.com/images/I/51kIOeC90jL.jpg)
![Gustard H20 Opamp Dual LM49720 Full Balanced Class A Headphone Amplifier Pre Amplifier (Silver) - Image 4](https://m.media-amazon.com/images/I/41o51WRHQFL.jpg)
![Gustard H20 Opamp Dual LM49720 Full Balanced Class A Headphone Amplifier Pre Amplifier (Silver) - Image 5](https://m.media-amazon.com/images/I/61tnl4B4n0L.jpg)

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.sk/products/120766745-gustard-h20-opamp-dual-lm49720-full-balanced-class-a-headphone](https://www.desertcart.sk/products/120766745-gustard-h20-opamp-dual-lm49720-full-balanced-class-a-headphone)

---

*Product available on Desertcart Slovakia*
*Store origin: SK*
*Last updated: 2026-03-22*