Collection: Reflection Filters

Reflection Filters: What to Know

Reflection filters are portable acoustic treatment devices that sit behind your microphone to reduce room reflections and early echoes during vocal and instrument recording. They're built with layered foam, diffusion panels, or a combination of both to absorb sound waves before they bounce off walls and return to the mic. Home studio owners use them to control room sound without permanent acoustic treatment. Voice actors rely on them for consistent booth-like recordings in untreated spaces. Podcasters and bedroom producers use them to tighten up vocal takes when proper room treatment isn't an option. They mount directly to mic stands and work best in small to medium-sized rooms where early reflections are the main problem.

What to Look For

Check the filter's coverage area. Larger semi-circular designs block more reflections but add weight to your mic stand. Smaller curved panels are lighter and easier to position but offer less isolation. Look at the internal construction: multi-layer foam with air gaps performs better than single-density material. Some models include metal diffusion plates behind the foam to scatter high frequencies instead of just absorbing them. Consider the mounting system. Universal mic stand clamps work with standard 5/8" threads, but heavier filters need reinforced stands to prevent drooping. Pay attention to the filter's depth. Shallow designs under 4 inches are less effective at low-mid frequencies. If you record loud sources like guitar amps or brass, make sure the foam is dense enough to handle high SPL without compressing. Foldable or modular designs are easier to store and transport for mobile recording setups.

Top Brands

Primacoustic builds the majority of reflection filters at Blackout Audio, known for their Reflexion series with rigid metal backing and dense acoustic foam. Audio-Technica, Tascam, and Gator round out the selection with portable options for different budgets and mounting configurations.

Shop Reflection Filters at Blackout Audio

Reflection filters pair well with dynamic or large-diaphragm condenser mics in rooms with hard surfaces like drywall, glass, or hardwood floors. They won't replace proper bass traps or broadband absorbers, but they solve the specific problem of early reflections reaching your mic capsule. If you're recording vocals, acoustic guitar, or voice-over in a bedroom or basement studio, a reflection filter tightens the sound and reduces the need for corrective EQ. Free shipping on orders over $199 across Canada.