--- product_id: 258939065 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: "Rp20295" currency: IDR in_stock: false reviews_count: 13 url: https://www.desertcart.id/products/258939065-helm-audio-bolt-dac-amp-usb-c-portable-high-end store_origin: ID region: Indonesia --- # +6 dB amplified output boost 384 kHz PCM & 5.6 MHz DSD playback USB-C to 3.5mm seamless plug 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:** Rp20295 **Availability:** ❌ Out of Stock ## Summary > 🎧 Elevate Every Beat: Studio Sound, Pocket-Sized Power ## 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?** Rp20295 with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.id](https://www.desertcart.id/products/258939065-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 audio experience—just connect via USB-C and enjoy crystal-clear sound. - • **Universal Compatibility:** Works flawlessly with Android, iOS, and PC devices—your portable studio companion anywhere. - • **Ultra-Low Distortion Design:** Physically isolated DAC and triple oscillator tech deliver ultra-clean, interference-free audio. - • **Studio-Quality Sound On The Go:** Transform any mobile device into a high-end audio powerhouse with pristine MQA playback. - • **Adaptive Headphone Level Matching:** Automatically optimizes output voltage for headphones under or over 150Ω, ensuring perfect volume and clarity. ## Overview The HELM Audio Bolt DAC/AMP is a compact, USB-C portable headphone amplifier delivering studio-grade sound with MQA support. It plays high-resolution PCM up to 384 kHz and DSD up to 5.6 MHz, amplifies output by +6 dB, and auto-adjusts headphone levels for optimal listening. Compatible with Android, iOS, and PC, its advanced design minimizes distortion and EMI for pristine audio on the move. ## Description Product description MOBILE MQA-CERTIFIED USB DIGITAL ANALOG CONVERTER The High Definition Digital Analog Converter with MQA rendering technology to bring studio quality audio to your phone. Plug & Play on Your Favorite Mobile Device for Incredible Studio Quality Audio. Stream MQA content from Tidal, Nugs and Xiami. INCREDIBLE SOUND The HELM BOLT is a High-End Digital Analog Converter for your high-res FLAC or WAV files, and it will improve audio quality while streaming Apple Music, Spotify, desertcart, and others. Enjoy playback of PCM files with sampling rates up to 384 kHz, or DSD files with sampling frequencies up to 5.6MHz. MASTER QUALITY AUTHENTICATED Master Quality Authenticated (MQA) is an award-winning technology that unlocks every detail of the original master recording with the convenience of streaming audio. MP3s deliver 10% of the original recording quality, but the HELM BOLT can stream MQA music at over 8 times the sampling rate of CD. Physically Isolated DAC The HELM BOLT physically isolates the DAC from the USB connector for improved performance Physically Isolated DAC The HELM BOLT physically isolates the DAC from the USB connector for improved performance Auto Output Impedance Matching Headphone output level automatically detects headphone impedance and sets level accordingly: (1V for = 150 ohms.) Auto Output Impedance Matching Headphone output level automatically detects headphone impedance and sets level accordingly: (1V for = 150 ohms.) LED Indicator A simple LED indicates MQA rendering or sample rate playback, Blue for idle or SD audio 48kHz, Magenta for MQA content. LED Indicator A simple LED indicates MQA rendering or sample rate playback, Blue for idle or SD audio 48kHz, Magenta for MQA content. Plug & Play For Android, iOS, MacOS, and Windows 10. Featuring a USB-C input and a 3.5mm audio output to connect to your wired headphones or speaker system. Plug & Play For Android, iOS, MacOS, and Windows 10. Featuring a USB-C input and a 3.5mm audio output to connect to your wired headphones or speaker system. Review: Great DAC for Pixel 8 - I plan on getting an external DAC for my mobile device since I subscribed to Tidal. I've also tried desertcart HD, but I chose Tidal way back when they first started getting attention for personal reasons. Of course, you can only stream their higher quality tracks (higher bit rate) with a device that can utilize HD formats. This was near impossible for mobile devices then, but fast forward to the present, by chance, I encountered some DACs on desertcart that were made for this. After looking around I decided on the Helm Audio Bolt DAC, USB C because of it's small size and good reviews. Long story short, I love it, and it improves the sound quality of my Pixel 8. I use it in my car with headphones, Final E5000, and Audio-Technica ATH-M20X. The E5000 pairs very well with the Bolt, the AT not so well yet, but I'm hoping after some tuning I can get it to run well. If you're looking for a DAC for your mobile device, I highly recommend the HELM Audio Bolt. There's a lot to choose from, so I would do research, but this product has my backing. Review: Amazing! - I have been searching for quite some time for a DAC for my Macbook Air and Ipad Air. I have tried numerous products, wired and wireless, portable and desktop, ranging in price up to $300. This product surpasses them all by a long stretch. It could not be easier to use - simply plug into a USB C port, plug in your headphones, and you are ready to go. The sound quality is better than anything else I have tried. The bass is much deeper than what comes directly from the computer or iPad and it is clear. No mud here. You can clearly distinguish the bass drum from the bass guitar. The rest of the spectrum follows suit - mids are clear and highs sparkle. You can hear the slight reverb present in most songs that you do not hear without this product. Do yourself a favor. If you want to listen to high quality music on any device with a USB C port, buy this DAC. ## 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: Ultra-low harmonic, crosstalk, and crossover distortion. Unlike other mobile DAC designs, we physically isolate the DAC from the USB connector for improved EMI isolation, and a three oscillator design for superior frequency lock with dramatic improvements over other DAC's. NOTE: Experiencing any drop outs or playback issues on Android or Google phones can be attributed to their latest OS updates or lack thereof, visit our support page for the latest set-up information. ## 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 - **Interface Type:** USB-C - **Minimum Supply Voltage:** 5 Volts - **Mounting Type:** Cable Mount - **Number of Pins:** 27 ## 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 ### ⭐⭐⭐⭐⭐ Great DAC for Pixel 8 *by D***G on July 9, 2024* I plan on getting an external DAC for my mobile device since I subscribed to Tidal. I've also tried Amazon HD, but I chose Tidal way back when they first started getting attention for personal reasons. Of course, you can only stream their higher quality tracks (higher bit rate) with a device that can utilize HD formats. This was near impossible for mobile devices then, but fast forward to the present, by chance, I encountered some DACs on Amazon that were made for this. After looking around I decided on the Helm Audio Bolt DAC, USB C because of it's small size and good reviews. Long story short, I love it, and it improves the sound quality of my Pixel 8. I use it in my car with headphones, Final E5000, and Audio-Technica ATH-M20X. The E5000 pairs very well with the Bolt, the AT not so well yet, but I'm hoping after some tuning I can get it to run well. If you're looking for a DAC for your mobile device, I highly recommend the HELM Audio Bolt. There's a lot to choose from, so I would do research, but this product has my backing. ### ⭐⭐⭐⭐⭐ Amazing! *by A***R on April 20, 2021* I have been searching for quite some time for a DAC for my Macbook Air and Ipad Air. I have tried numerous products, wired and wireless, portable and desktop, ranging in price up to $300. This product surpasses them all by a long stretch. It could not be easier to use - simply plug into a USB C port, plug in your headphones, and you are ready to go. The sound quality is better than anything else I have tried. The bass is much deeper than what comes directly from the computer or iPad and it is clear. No mud here. You can clearly distinguish the bass drum from the bass guitar. The rest of the spectrum follows suit - mids are clear and highs sparkle. You can hear the slight reverb present in most songs that you do not hear without this product. Do yourself a favor. If you want to listen to high quality music on any device with a USB C port, buy this DAC. ### ⭐⭐⭐⭐⭐ Great DAC in an amazingly small foot print *by P***. on April 16, 2021* I have a number of portable and desktop DACs, including the Oppo HA-2SE and SMSL SU-9, and several Fiio DAPs like the M9 with comparable ESS or AK chips in them. I also have the briefly-available Razer DAC which was a favorite for walking around, but basically a slightly more powerful and better version of the OEM dongles from Apple or Google. I am very impressed with what Helm pulled off with the Bolt, the new 9218 is pretty similar to the Oppo in sound quality while being much smaller. It is somewhere around the Oppo and has a very analytical, ESS typical sound, far and away better than the Razer or other things while not as clean or powerful as my bigger desktop amps (SU-9 or K5 Pro). For the price, its very much worth it if you are driving nicer in ear monitors or headphones and want to take advantage of them! ## 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.id/products/258939065-helm-audio-bolt-dac-amp-usb-c-portable-high-end](https://www.desertcart.id/products/258939065-helm-audio-bolt-dac-amp-usb-c-portable-high-end) --- *Product available on Desertcart Indonesia* *Store origin: ID* *Last updated: 2026-05-13*