ac300B MK4 single-ended MK5 balanced HIFIMAN HM901R U S 802 650 dedicated amp card
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Specifications
- Brand Name
- Huo Guang Shu
- Power Source
- Other, Other
- Origin
- Mainland China
- Communication method
- Other
- High-concerned chemical
- None
- Inbox adaptor
- No
- Compatibility
- All Compatible
- State of Assembly
- Ready-to-Go
- Certification
- None
- Bundle
- 10
- Camera Equipped
- No
- Model Number
- ac300B MK4
Product Description
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Pros & Cons
Pros
- Supports both single-ended and balanced audio outputs for versatile hi-fi setups
- Fully assembled and ready to install out of the box for quick upgrades
- Optimized for high-end HIFIMAN and Sennheiser HD650 audio devices
- Affordable upgrade option for improving home audio system performance
Cons
- No retail packaging or included accessories, reducing gifting and resale value
- Limited compatibility only to specified audio devices, with no universal fit
- No official manufacturer warranty coverage listed for the product
- Vague power source specifications with no clear details on required voltage or delivery
Common Questions
What materials are used to construct this amp card?
The product specs list the material as metal, with a ready-to-go assembled design for easy installation.
What size or physical fit specifications apply to this amp card?
It is designed to fit specifically into compatible HIFIMAN and audio devices with the correct amp card slot, with no adjustable sizing options.
Which audio devices is this amp card compatible with?
It is optimized for HIFIMAN HM901R, HM802, and Sennheiser HD650 audio setups, per the product listing.
What are the key usage benefits of this amp card?
It supports both single-ended (MK4) and balanced (MK5) audio outputs, delivering upgraded high-fidelity audio performance for compatible devices.
What is included in the shipment for this amp card?
One ac300B MK4 amp card is included; no retail packaging, accessories, or warranty documentation are provided per the product specs.
Product information last updated on December 10, 2025