This pistonphone adapter makes possible to calibrate a microphone with a 7 mm protection grid when used together with a coupler for 1/2". Notice that the 7 mm protection grid size apply both for our standard 1/4" microphones/microphone sets (e.g. 46BE) and 7 mm diameter microphones (e.g. 40PK).
Quality & Warranty
G.R.A.S. accessories are made of stainless steel, alloys and high-quality composites. These items are covered by a 2 year warranty respecting their intended use.
On consumables like batteries, cables and windscreen we offer a 6 month warranty.