AudioMedia - March 2009 - (Page 22) SIMON TILLBROOK spends a little time with SE’s IRF, filtering the good from the bad and the ugly. mongst the array of equipment I have assembled over the years is the SE Electronics Reflection Filter. I am sure you are, at the very least, aware of this crescent-shaped acoustic shielding device, primarily aimed at vocal recording in less than ideal environments. I have found this to be very useful indeed in numerous studios and, in particular, on location recordings, but the size does limit the number of practical possibilities when it comes to instrument recording. SE Electronics has addressed this with the introduction of the IRF (Instrument Reflexion Filter). A Running through the centre of the SE IRF is a hole about . cm (c. . inches) in diameter. There is a clamp on the inside of the IRF for holding whatever you pass through the hole in place. A foam bung is supplied with the IRF for applications where the hole is not being used. The overall feel is that the SE IRF is reasonably well constructed. The main body of the unit is good, but I do have some reservations when it comes to the microphone clamp. Only time will tell, of course, but the design is such that replacement would be a straightforward job to SE ELECTRONICS INSTRUMENT REFLEXION FILTER Portable Acoustic Filter A G enetic R esemblance Looking at the SE Electronics IRF, it resembles its larger counterpart almost completely. The IRF dimensions are a compact cm (eight inches) wide by cm ( . inches) high, by cm (four inches) deep. There is the same pierced metal semi-circular design with three layers of acoustic material lining the inside. Where the larger Reflection Filter compacts these layers together into one larger, thicker surface, the IRF layers are quite distinct with a good air gap between each of them. On the rear of the SE Electronics IRF is a clamp for attaching to a standard microphone stand. do as the clamp is screwed, rather than moulded, to the body of the IRF. Size Is Ever ything I took some time to try a few configurations you can use with the IRF. The size and shape of the hole obviously limits the mics that can be placed through it to get the capsule tight inside the IRF body. Small diaphragm pencil designs (inc. the SE range) are the obvious design orientation here, and any handheld dynamic or condenser, such as SM , will also fit, but placing a mic stand boom arm through the hole is also a possibility. THE REVIEWER SIMON TILLBROOK is the Principal Music Tutor at Islington Music Workshop in London. The rest of his time is spent as a freelance engineer, mainly in the USA. THE headphone company www.ultrasone.com Please come and visit us in München : High End Show (21-24.5.09) and in Frankfurt: Prolight + Sound (1-4.4.09). PRO HFI DJ We will present brand new headphones. Come and TRUST YOUR EARS! & 22 AUDIO MEDIA MARCH 2009 http://www.ultrasone.com http://www.ultrasone.com
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