Se Electronics GuitaRF is named so that you immediately know its original target user: live sound engineers putting Reflexion Filters ("RFs") on guitar amplifiers to help isolate the mics from stage bleed.

And sure, it's really useful for guitar and bass cabinets. With the integrated base stand that slides right under the front of your amp, it provides a stable, super-efficient double-mic mounting and positioning device.

But just because the word "guitar" is in the name doesn't mean that's ALL it's good for.