DPA 4061 pair
The main test for the DPA mics was to see how they coped with high power levels like engine exhausts and machinery. The main reason I have been considering acquiring these mics is because their small size and high power level capacity make them excellent for recording cars, bikes, planes etc. The first test today was to attach them to a motorbike and see how they handled it. One of the guys I worked with has a Honda CBR 600 which was a perfect subject for what I needed. I attached the first mic to one of the rear indicators about two inches from the exhaust. (The CBR has a single central exhaust that comes out from under the seat.) I really wanted to push these mics and see what they could handle. Even though I wanted to capture some bike samples I was happy to risk not getting anything useful to see just how good these were.
The second mic I attached to one of the front indicators. The weather was pretty bad on the day so I didn’t have the luxury to really work out a good location for the front mic. Considering this was mainly a test I was more interested in how the mic coped rather than positioning it perfectly. The leads for both mics were taped down with basic electrical tape and attached to the H4N which I placed a backpack which the rider wore while riding. I then sat and read a book while my friend went for a ride. The results were better than I had hoped for. The rear mic captured pure exhaust output with no tyre sound and no unwanted sounds from anything else. The front mic was slightly less perfect. It captured excellent samples, but even with a foam cover and a Rycote fluffy wind jammer it still picked up some wind noise. I think this was largely due to its positioning. The fairing on the front of the bike was deflecting the wind past the bike, but I think it was directing it straight over the mic. It was a good lesson for the future, next time I will place the mic closer to the engine itself. Both mics however captured excellent samples and proved they could do what I needed them to.