--- product_id: 769665367 title: "Helm BOLT DAC/AMP, USB-C Portable High Performance DAC/Headphone Amplifier Supports MQA Playback, Mobile Studio Sound USB-C to 3.5mm Audio Cable for Android, IOS and PC, THX Certified Black" brand: "helm" price: "R$289100" currency: BRL in_stock: true category: "Helm" url: https://www.desertcart.com.br/products/769665367-helm-bolt-dac-amp-usb-c-portable-high-performance-dac store_origin: BR region: Brazil --- # Helm BOLT DAC/AMP, USB-C Portable High Performance DAC/Headphone Amplifier Supports MQA Playback, Mobile Studio Sound USB-C to 3.5mm Audio Cable for Android, IOS and PC, THX Certified Black **Brand:** helm **Price:** R$289100 **Availability:** ✅ In Stock ## Quick Answers - **What is this?** Helm BOLT DAC/AMP, USB-C Portable High Performance DAC/Headphone Amplifier Supports MQA Playback, Mobile Studio Sound USB-C to 3.5mm Audio Cable for Android, IOS and PC, THX Certified Black by helm - **How much does it cost?** R$289100 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/769665367-helm-bolt-dac-amp-usb-c-portable-high-performance-dac) ## Best For - helm enthusiasts ## Why This Product - Trusted helm brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Description desertcart.co.jp: Helm BOLT DAC/AMP, USB-C Portable High Performance DAC/Headphone Amplifier Supports MQA Playback, Mobile Studio Sound USB-C to 3.5mm Audio Cable for Android, IOS and PC, THX Certified Black : Electronics ## Features - STUDIO GRADE PORTABLE DIGITAL ANALOG CONVERTER MQA COMPATIBLE: Bolts provide studio quality content in any audio format that plays on your mobile device. It supports MQA streaming and boasts high fidelity like no other portable audio. Compatible with Android, iOS, Mac, PC MQA compatible adapter or third-party app may be required - MOST Faithful SOUND: MQA rendering faithfully reproduces the master sound source, delivering the sound intended by artists and engineers at higher resolution than CDs - Compatible with Smartphones, Tablets, Macs, and PCs: Equipped with USB-C input and a 3.5mm headphone output, it supports PCM files with a sampling rate of up to 384 kHz, and DSD files up to 5.6 MHz. 3.5mm audio jack connects seamlessly to your wired headphone or speaker system. Note: If there is no 3.5mm input jack, you will need an adapter - Matching Amplifier Audio Output and Headphone Output Level: (if there is no dedicated headphone audio output) can increase average +6dB for devices with USB audio output - THX CERTIFIED AUDIO OUTPUT: Designed to minimize distortion in harmonics, crosstalk and crossover Unlike other mobile MQA-DAC designs, the HELM bolt improves EMI isolation by physically separating the DAC from the USB connector, and uses a 3-piece oscillator design to achieve far superior frequency lock compared to the single oscillator DAC design ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B086GK94X2 | | Best Sellers Rank | #215,713 in Electronics ( See Top 100 in Electronics ) #308 in Headphone Amps | | Brand | HELM | | Brand Name | HELM | | Compatible Devices | Amplifier, Personal Computer, Smartphone | | Customer Reviews | 4.0 out of 5 stars 447 Reviews | | Global Trade Identification Number | 00840020800071 | | Included Components | USB Adapter & Carrying Case | | Interface | USB-C | | Interface Type | USB-C | | Item Dimensions L x W | 4"L x 0.25"W | | Item Weight | 1 Ounces | | Manufacturer | HELM | | Material Type | Aluminium | | Minimum Supply Voltage | 5 Volts | | Model | HMQA-100B | | Mounting Type | Cable Mount | | Number of Channels | 2 | | Number of Pins | 27 | | Part Number | HMQA-100B | | UPC | 840020800071 | | Unit Count | 1.0 Count | ## Product Details - **Brand:** HELM - **Compatible Devices:** Android, PC, iPhone, iPad, MAC - **Interface Type:** USB - **Number of Channels:** 2 - **UPC:** 840020800071 ## Images ![Helm BOLT DAC/AMP, USB-C Portable High Performance DAC/Headphone Amplifier Supports MQA Playback, Mobile Studio Sound USB-C to 3.5mm Audio Cable for Android, IOS and PC, THX Certified Black - Image 1](https://m.media-amazon.com/images/I/718jJZBLnCL.jpg) ![Helm BOLT DAC/AMP, USB-C Portable High Performance DAC/Headphone Amplifier Supports MQA Playback, Mobile Studio Sound USB-C to 3.5mm Audio Cable for Android, IOS and PC, THX Certified Black - Image 2](https://m.media-amazon.com/images/I/71o6eOyDwHL.jpg) ![Helm BOLT DAC/AMP, USB-C Portable High Performance DAC/Headphone Amplifier Supports MQA Playback, Mobile Studio Sound USB-C to 3.5mm Audio Cable for Android, IOS and PC, THX Certified Black - Image 3](https://m.media-amazon.com/images/I/714mxcacvsL.jpg) ![Helm BOLT DAC/AMP, USB-C Portable High Performance DAC/Headphone Amplifier Supports MQA Playback, Mobile Studio Sound USB-C to 3.5mm Audio Cable for Android, IOS and PC, THX Certified Black - Image 4](https://m.media-amazon.com/images/I/71c4Bto0aRL.jpg) ![Helm BOLT DAC/AMP, USB-C Portable High Performance DAC/Headphone Amplifier Supports MQA Playback, Mobile Studio Sound USB-C to 3.5mm Audio Cable for Android, IOS and PC, THX Certified Black - Image 5](https://m.media-amazon.com/images/I/81kCnmW++pL.jpg) ## 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 --- ## 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.com.br/products/769665367-helm-bolt-dac-amp-usb-c-portable-high-performance-dac](https://www.desertcart.com.br/products/769665367-helm-bolt-dac-amp-usb-c-portable-high-performance-dac) --- *Product available on Desertcart Brazil* *Store origin: BR* *Last updated: 2026-05-26*