LiNKFOR MA400 XLR Headphone Amplifier
- Number Of Channels: 1
- Warranty Description: 1.5 years
- Item Weight: 0.84 pounds
- Material Type: Metal
Last refreshed Aug 4, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A small-footprint amplifier from LiNKFOR, worth considering mainly for space-constrained setups where a full-size receiver will not fit.
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ASIN: B09BKZCQG7Model: MX400Category: Audio Amplifiers
Overview
The LiNKFOR MX400 is a compact amplifier measuring roughly 4 by 2.5 by 2 inches, small enough to tuck behind a shelf or into a car interior rather than sit as a full-size stereo component.
Amazon's listing for this unit is thin on detail beyond its footprint, so most of what a buyer can judge here comes down to size and brand. Compact amplifiers in this size class are typically used to add power to bookshelf speakers or a car audio setup rather than to anchor a full home theater rack.
- Compact dimensions of 4.06 x 2.52 x 1.85 in
- LiNKFOR branded electronics
- Model MX400
- Small enough for desk, cabinet or vehicle use
Who it's for
Fits someone who needs a small footprint amplifier for a tight space, such as a desk, cabinet or vehicle, rather than a full-size AV receiver for a living room rack.
Pros and cons
- Compact footprint fits tight spaces easily
- Power output and connectivity are undocumented
- Limited brand information to weigh against established amplifier makers
Performance notes
With only its physical dimensions confirmed, the practical performance of this amplifier, including power output and input types, is not established by the available data. Buyers should confirm power rating and connectivity directly before pairing it with specific speakers.
Specifications
| Brand | LiNKFOR |
|---|---|
| Model | MX400 |
| Dimensions & fit | |
| Item Weight | 0.84 poundslower than 84% of 38 audio amplifiers |
| Item Dimensions | 4.1 × 2.5 × 1.9 inches |
| Construction & materials | |
| Material Type | Metal |
| Included components | |
| Included Components | Headphone Amplifier, Power Adapter, User Manual |
| Warranty & support | |
| Warranty Description | 1.5 years |
| Other details | |
| Number Of Channels | 1 |
| Part Number | ULKDAC142us |
Closest rivals on specs
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Frequently asked questions
How big is the LiNKFOR MX400?
It measures about 4.06 by 2.52 by 1.85 inches, a compact size compared to a full-size stereo amplifier.
Is this suited to a full living room home theater rack?
Its compact size points more toward space-limited setups than a full-size AV rack, though connectivity details are not confirmed.