December 2015, MARIETTA, GA - Premium Solution: The G.R.A.S. 45BB-8 KEMAR Head and Torso Simulator has the same dimensions and acoustical properties as the original KEMAR, but has been developed further by G.R.A.S. to meet the industry’s demand for realistic measurements of hearing aids, headphones and headsets. It provides acoustic diffraction similar to that encountered around the median human head and torso, both in the proximity and in the far field. The 45BB-8 Head & Torso for test of binaural hearing aid, 2-Ch CCP is delivered configured, individually calibrated and ready for use. In addition to a system calibration certificate, a USB flash memory with useful data is included.

Portable/Versatile Solution: The GRAS 43AG-S1 Ear and Cheek Simulator Kit is a unique, multi-faceted and multi-purpose tool that helps you accomplish the job in an effective and efficient manner. We call it the table-top KEMAR as it offers you much of the KEMAR capability in a convenient and portable packaging. The 43AG is a valuable tool and can for example be used to verify frequency response, distortion, isolation and leakage. The realistic pinna and ear simulator allows for testing of BTEs, RICs and CICs as well as both concha and insert type earphones. It can also be used for headphone and headset testing, both circum-aural and supra-aural types, like those accompanying most audiometers (TDH-39s and HDA 200s).

The Essential Solution: The IEC 711 Ear Simulator RA0045-S1 is the core product needed for making acoustic measurements on earphones and hearing aids that couple to the human ear by ear inserts such as tubes, ear moulds, or ear tips. It is internationally standardized and a critical component in all measurement solutions. It is delivered with a built-in G.R.A.S. 40AO ½" pre-polarized pressure microphone and an individual calibration chart for the ear simulator. The super short 26CS preamplifier with an integrated Microdot output connector will allow for measurements in tight spaces (testboxes, KEMAR head etc.). Microdot-to-BNC cables of custom length are available to suit your needs. The casing is made of stainless steel for maximum strength and durability, so your measurement system will remain intact for years to come.