Scientific Anglers Frequency Magnum – Glow
The Frequency Magnum summed up in six words: big flies, big fish, small price. Designed with an aggressive weight-forward head, the Magnum fly line is built for tossing large flies, turning over split shot, and blasting through the wind. In other words, this line is a bit of a bully—which is great if you’re targeting bass, big trout, and light saltwater game. It’s nice to have some muscle on your side.
- Turns over large dries, streamers, and split shot with ease
- For use in both fresh- and saltwater environments
- Overweighted design loads fast-action rods
- Braided multifilament core
- Species: Carp, Grayling, Panfish, Bass, Pike, Salmon, Steelhead, Trout
- Water Type: Freshwater
| Feature | Detail |
|---|---|
| Line Type | Fly Line |
| Core Material | Braided Multifilament |
| Weight Forward Design | Aggressive, yes |
| Recommended Use | Large flies, split shot, wind conditions |
| Target Species | Carp, Grayling, Panfish, Bass, Pike, Salmon, Steelhead, Trout |
| Water Type | Freshwater |
FAQ
Is the Frequency Magnum suitable for saltwater fishing?
The line is rated for both fresh- and saltwater environments, but it is primarily designed for freshwater use. Performance in saltwater may vary due to the core material and weight distribution.
Can this line be used with fast-action rods?
Yes, the overweighted design is specifically engineered to load fast-action rods effectively.
What types of flies work best with the Magnum line?
Large dries, streamers, and split shot perform best with this line due to its aggressive weight-forward head.



Eric Martin –
This line handles big flies and wind conditions well. I used it for bass and panfish in a lake and found it easy to cast long distances. The weight forward design helps with loading my fast-action rod. Good value for the performance.
Sarah Gray –
Great for targeting larger trout and pike. The split shot turns over smoothly, and it feels solid in the water. A bit heavy for light fly fishing, but perfect for my setup.
Maria Simpson –
I’ve switched from a standard fly line to the Magnum. It’s much more effective when casting large streamers. The braided core holds up well in windy conditions and doesn’t tangle easily.
Joshua Johnston –
Works well in freshwater lakes. I use it for carp and grayling. The line casts true and doesn’t break under pressure. A bit more expensive than basic lines, but worth it for the performance.
Neil Quinn –
Perfect for when I need to throw big flies in open water. The weight forward head gives me confidence in long casts. I’ve used it for steelhead and bass with good results.