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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
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Users say:
This product has great sound quality and is convenient for carrying around a DAC. It provides extra clarity and volume, and is compatible with a variety of devices. However, it requires an app to get MQA and can be a bit expensive.
STUDIO GRADE PORTABLE DIGITAL ANALOG CONVERTOR WITH MQA: BOLT delivers studio sound on the go from any mobile device across all listening formats. Supports MQA (Master Quality Authenticated) streaming for unparalleled fidelity in portable audio. Compatible with Android, iOS, Mac, and PCs. May require extra ad…
STUDIO GRADE PORTABLE DIGITAL ANALOG CONVERTOR WITH MQA: BOLT delivers studio sound on the go from any mobile device across all listening formats. Supports MQA (Master Quality Authenticated) streaming for unparalleled fidelity in portable audio. Compatible with Android, iOS, Mac, and PCs. May require extra adapters or third party apps for MQA support. HIGHEST FIDELITY SOUND: MQA (Master Quality Authenticated) rendering "unfolds" every detail of the original master recording as the artist and engineers intended it to be heard for better-than-CD audio resolutions. Stream MQA content from TIDAL, nugs.net, and Xiami. MQA Certified. SMARTPHONE, TABLET, MAC & PC COMPATIBLE: 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. Note: An adapter is required if you do not have a 3.5mm input jack. AMPLIFIED AUDIO OUTPUT & HEADPHONE OUTPUT LEVEL MATCHING: Provides an average increase of +6 dB in devices with combined USB-audio output (where a dedicated headphone audio output isnt available). Headphone output level automatically detects headphone impedance and sets level accordingly (1V for 150 ohms). THX CERTIFIED AUDIO OUTPUT: Exclusively designed for ultra-low harmonic, crosstalk & 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 single oscillator DAC designs. Android 12 Devices: Some Android 12 devices may experience low volume levels using the BOLT. The fix is to upgrade to new firmware found on the HELM Audio Support Page 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. Note: An adapter is required if your audio input does not support a 3.5mm jack.
Review summary
AI-generated content
This product has great sound quality and is convenient for carrying around a DAC. It provides extra clarity and volume, and is compatible with a variety of devices. However, it requires an app to get MQA and can be a bit expensive.
Pros
- Good sound quality
- Convenient carry-around DAC
- Extremely low distortion
- Adds clarity to music
Cons
- Requires exclusive mode for full benefits
- Not compatible with hubs
- Requires separate app purchase
Read original reviews
Description
STUDIO GRADE PORTABLE DIGITAL ANALOG CONVERTOR WITH MQA: BOLT delivers studio sound on the go from any mobile device across all listening formats. Supports MQA (Master Quality Authenticated) streaming for unparalleled fidelity in portable audio. Compatible with Android, iOS, Mac, and PCs. May require extra adapters or third party apps for MQA support. HIGHEST FIDELITY SOUND: MQA (Master Quality Authenticated) rendering "unfolds" every detail of the original master recording as the artist and engineers intended it to be heard for better-than-CD audio resolutions. Stream MQA content from TIDAL, nugs.net, and Xiami. MQA Certified. SMARTPHONE, TABLET, MAC & PC COMPATIBLE: 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. Note: An adapter is required if you do not have a 3.5mm input jack. AMPLIFIED AUDIO OUTPUT & HEADPHONE OUTPUT LEVEL MATCHING: Provides an average increase of +6 dB in devices with combined USB-audio output (where a dedicated headphone audio output isnt available). Headphone output level automatically detects headphone impedance and sets level accordingly (1V for 150 ohms). THX CERTIFIED AUDIO OUTPUT: Exclusively designed for ultra-low harmonic, crosstalk & 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 single oscillator DAC designs. Android 12 Devices: Some Android 12 devices may experience low volume levels using the BOLT. The fix is to upgrade to new firmware found on the HELM Audio Support Page 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. Note: An adapter is required if your audio input does not support a 3.5mm jack.
Specifications
| Brand | Helm |
| Product Dimensions: | 4 X 0.25 X 0.25 Inches; 1 Ounces |
| Interface Type | Usb |
| Manufacturer: | Helm |
| Asin: | B086gk94x2 |
| Material | Aluminum |
| Date First Available: | June 24, 2020 |
| Country Of Origin: | China |
| Department: | Womens |
| Product Dimensions | 4"l X 0.25"w |
| Item Model Number: | Hmqa-100b |