The QSA 5x20mm fast blow fuse brings the same MMMAT and MAT treatment as the slow blow version to components requiring fast-blow protection. The treatment is the same; the fuse element characteristics are appropriate for fast-blow applications.
"Many high-end audio tweaks I've heard sound great, but none have matched QSA's remarkable performance. I repeat, none." — Clement Perry, StereoTimes
Fast Blow vs. Slow Blow
Fast blow fuses respond immediately to overcurrent events. They're required in components where the protection circuit demands near-instant response — typically in the signal path rather than the AC mains input. Before ordering, confirm your component requires a fast blow fuse rather than slow blow. The component's manual or the fuse itself will specify this.
The Treatment
MMMAT (Musical Metal Molecule Alignment Technology) and MAT (Metal Active Technology) applied to the fuse element. More efficient electron flow, greater conductivity, elimination of narrow-band distortions — the same result as the slow blow version, appropriate for fast-blow applications.
Specifications
Size: 5x20mm
Type: Fast blow
Levels: Yellow through Gold
Note: Special order, non-returnable, trade-up eligible
Confirm fast blow requirement before ordering
Not sure which amperage, type, or level? Reach out — we'll help you get it right before you order.
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