---
product_id: 386643037
title: "HELM Audio Bolt DAC/AMP, USB-C Portable High-End DAC/Headphone Amplifier with MQA Playback. Mobile Studio Sound for Android, iOS and PC. USB-C to 3.5mm Audio"
brand: "helm"
price: "$1700081"
currency: COP
in_stock: true
reviews_count: 1
category: "Helm"
url: https://www.desertcart.co/products/386643037-helm-audio-bolt-dac-amp-usb-c-portable-high-end
store_origin: CO
region: Colombia
---

# +6dB amplified output boost 384kHz PCM & 5.6MHz DSD playback USB-C to 3.5mm seamless plug-n-play HELM Audio Bolt DAC/AMP, USB-C Portable High-End DAC/Headphone Amplifier with MQA Playback. Mobile Studio Sound for Android, iOS and PC. USB-C to 3.5mm Audio

**Brand:** helm
**Price:** $1700081
**Availability:** ✅ In Stock

## Summary

> 🎧 Unlock Studio Sound Anywhere — Because Your Ears Deserve the Best

## Quick Answers

- **What is this?** HELM Audio Bolt DAC/AMP, USB-C Portable High-End DAC/Headphone Amplifier with MQA Playback. Mobile Studio Sound for Android, iOS and PC. USB-C to 3.5mm Audio by helm
- **How much does it cost?** $1700081 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co](https://www.desertcart.co/products/386643037-helm-audio-bolt-dac-amp-usb-c-portable-high-end)

## Best For

- helm enthusiasts

## Why This Product

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

## Key Features

- • **Plug & Play Simplicity:** Instantly upgrade your mobile audio with USB-C connectivity and universal 3.5mm headphone compatibility—no bulky gear needed.
- • **Tailored Volume Matching:** Smart headphone impedance detection delivers perfect output levels for any headphones, ensuring flawless sound without distortion.
- • **Compact Powerhouse Design:** Sleek aluminum build fits in your pocket but packs a serious punch with amplified output and master-quality streaming support.
- • **Studio-Grade Sound On The Go:** Experience pristine, high-res audio anywhere with MQA decoding that unlocks every detail of your favorite tracks.
- • **THX Certified Audio Excellence:** Ultra-low distortion and EMI isolation guarantee crystal-clear sound that outperforms typical mobile DACs.

## Overview

The HELM Audio Bolt DAC/AMP is a portable, USB-C to 3.5mm high-resolution digital-to-analog converter and headphone amplifier designed for audiophiles on the move. Supporting PCM playback up to 384 kHz and DSD up to 5.6 MHz, it delivers studio-quality sound with MQA decoding for master-level streaming from platforms like Tidal. Its THX certification ensures ultra-low distortion and EMI isolation, while smart impedance matching optimizes headphone output levels. Compatible with Android, iOS, and PC, this compact aluminum device amplifies audio by +6 dB, transforming any mobile device into a high-fidelity listening powerhouse.

## Description

Portable Hi-Res DAC delivering no compromise MQA audio decoding Studio Grade Quality Sound anywhere you go with true audiophile digital audio conversion in the smallest USB-C to 3.5mm TRRS adapter available. MQA supported for the ultimate high fidelity listening experience possible for Android, iOS and computers. No-Excuses Audio Quality for On-The-Go Mobile Experiences with total portability and the convenience of streaming audio via your phone that now easily compete with your home audio audiophile gear. The HELM BOLT DAC/AMP delivers studio quality sound with a big soundstage, increased volume and the highest fidelity for mobile devices in a miniature package. Plug-and-play, you can connect to your phone and wired headphones to enjoy high definition audio as a DAC from PCM 384 kHz to DSD 5.6M. For the ultimate experience in streaming audio, listen to Master Quality Authenticated (MQA) content from providers like Tidal Masters, Nugs, or Xiami to unfold every detail of the original recording. **Free Customer support and how to videos on the HELM website. Android and Google Phone operating systems can be challenging to set up for HiFi streaming due to their firmware updates.. Please contact us we can assist.

Review: Best Audiophile Dongle Dac! - Amazing Dac Dongle I tried have many including all the Astel & kern dongles, hands down this is better in every way more detail in all areas and volume output, also its tiny, I have had this for a very long time, I should have reviewed this sooner! dont thing buy it you wont regret it!

## Features

- Serious Sound Quality in the Smallest Package - Plug in and immediately hear the sound quality dramatically improve from any mobile device across all listening formats. Bolt delivers studio sound on the go and supports MQA files for a new level of portable audio. Works with Android, iOS and PC's. May require extra adapters or third party apps for MQA support. *Scan the QR code in the manual for the latest set up videos for each platform. Questions, please reach out to our support team.
- Like 4k Video for Your Ears Master Quality Authenticated (MQA) unlocks every detail of the original master recording with the convenience of streaming audio. MP3 and similar audio streams deliver 10% of the original recording quality, but the HELM BOLT can stream and unfold MQA content to stunning better-than-CD audio resolutions. Stream MQA content from Tidal, nugs.net, and Xiami.
- Plug-In and Hear the difference: USB-C input to a 3.5mm Headphone Output supporting playback of PCM files with sampling rates up to 384 kHz, or DSD files with sampling frequencies up to 5.6MHz. The 3.5mm audio jack seamlessly connects to your wired headphones or speaker system.
- Amplified Audio Output and Headphone Output Level Matching An average increase of +6 dB in devices with combined USB-audio output (where a dedicated headphone audio output isn't available.) Headphone output level automatically detects headphone impedance and sets level accordingly: (1V for  150 ohms.). Note: Increased dB levels vary based on each type of set up. Email our support team with any questions, we are here to assist.
- Exclusive Design with THX Certification: Ultra-low harmonic, crosstalk, and crossover distortion. Unlike other mobile MQA-DAC designs, the HELM BOLT physically isolates the DAC from the USB connector for improved EMI isolation, and uses a three oscillator design for superior frequency lock with dramatic improvements over other DAC designs.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B086GK94X2 |
| Best Sellers Rank | #117,715 in Electronics ( See Top 100 in Electronics ) #171 in Headphone Amps |
| Brand | HELM |
| Brand Name | HELM |
| Customer Reviews | 4.0 out of 5 stars 409 Reviews |
| Global Trade Identification Number | 00840020800071 |
| Included Components | USB Adapter & Carrying Case |
| Interface | USB-C, 3.5mm |
| Interface type | USB-C, 3.5mm |
| Item Dimensions L x W | 10.2L x 0.6W centimeters |
| Item Weight | 1 Ounces |
| Manufacturer | HELM |
| Material Type | Aluminum |
| Maximum Supply Voltage | 2 Volts |
| Maximum supply voltage | 2 Volts |
| Minimum Supply Voltage | 5 Volts |
| Minimum supply voltage | 5 Volts |
| Mounting Type | Cable Mount |
| Mounting type | Cable Mount |
| Number of Channels | 2 |
| Number of Pins | 24 |
| Number of pins | 24 |
| UPC | 840020800071 |
| Unit Count | 1.0 Count |

## Product Details

- **Brand:** HELM
- **Maximum supply voltage:** 2 Volts
- **Minimum supply voltage:** 5 Volts
- **Mounting type:** Cable Mount
- **Number of pins:** 24

## Images

![HELM Audio Bolt DAC/AMP, USB-C Portable High-End DAC/Headphone Amplifier with MQA Playback. Mobile Studio Sound for Android, iOS and PC. USB-C to 3.5mm Audio - Image 1](https://m.media-amazon.com/images/I/718jJZBLnCL.jpg)
![HELM Audio Bolt DAC/AMP, USB-C Portable High-End DAC/Headphone Amplifier with MQA Playback. Mobile Studio Sound for Android, iOS and PC. USB-C to 3.5mm Audio - Image 2](https://m.media-amazon.com/images/I/71o6eOyDwHL.jpg)
![HELM Audio Bolt DAC/AMP, USB-C Portable High-End DAC/Headphone Amplifier with MQA Playback. Mobile Studio Sound for Android, iOS and PC. USB-C to 3.5mm Audio - Image 3](https://m.media-amazon.com/images/I/714mxcacvsL.jpg)
![HELM Audio Bolt DAC/AMP, USB-C Portable High-End DAC/Headphone Amplifier with MQA Playback. Mobile Studio Sound for Android, iOS and PC. USB-C to 3.5mm Audio - Image 4](https://m.media-amazon.com/images/I/71c4Bto0aRL.jpg)
![HELM Audio Bolt DAC/AMP, USB-C Portable High-End DAC/Headphone Amplifier with MQA Playback. Mobile Studio Sound for Android, iOS and PC. USB-C to 3.5mm Audio - Image 5](https://m.media-amazon.com/images/I/81kCnmW++pL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Best Audiophile Dongle Dac!
*by F***T on 25 February 2025*

Amazing Dac Dongle I tried have many including all the Astel & kern dongles, hands down this is better in every way more detail in all areas and volume output, also its tiny, I have had this for a very long time, I should have reviewed this sooner! dont thing buy it you wont regret it!

## Frequently Bought Together

- Helm Audio Bolt DAC/AMP, USB-C Portable High-End DAC/Headphone Amplifier with MQA Playback. Mobile Studio Sound for Android, iOS and PC. USB-C to 3.5mm Audio
- F2 Planar Magnetic Dual Driver Wired HiFi in-Ear Headphones - Earbuds, Pro-Sound Quality with 2 High-End Drivers, Total Clarity & Deep Bass, Sound Isolating Secure Fit, Controls, Mic, 3.5mm

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*Product available on Desertcart Colombia*
*Store origin: CO*
*Last updated: 2026-03-02*