This is the product that kicked it all off, and it’s stood the test of time reasonably well. Construction is excellent, and through panel bolts from the outer to inner surface not only add rigidity but also ensure the inner panel sections are decently dampened. The filter is mounted via a single thread at the bottom and this is attached to a robust clamp. The clamp, like all three filters on test, also has an integrated adjustable mic mounting arm that sits within the filter. The filter and bracket combination are reasonably weighty so you’ll need a decent mic stand, and some caution is required in use to ensure the whole thing doesn’t topple over.
The Reflexion Filter Pro features a multi-layer design using wool, tensioned aluminium foil and polyester fibreboard. This not only filters sound but also ensures the filtered sound and early reflections aren’t unduly coloured. In practice it curtails some sound into the rear of the mic and overall can add some degree of focus, particularly in the low to mid frequencies. Even so, in use its compact size can feel quite claustrophobic.