Dedicated Test Chamber TBS25 is a dedicated test chamber with exceptional performance and signal reproduction. It offers a compact solution in situations where maximum attenuation is critical and space considerations are relevant. It can be used with the Equinox and Affinity platforms for hearing aid testing and with a variety of proprietary and non standard equipment. The future - complex signals The TBS25 is also an investment for the future. Future testing of hearing aids is expected to involve more complex stimuli and demand a higher acoustic performance from the test chamber than needed for pure tones. Easy to use The compact size and table-top design make it easy to place and use. Internal cable routing eliminates the need for awkward external cables between coupler and reference microphones and the analyzer. Directional microphones The TBS25 approximates free field conditions above 500Hz and has the speaker in the same vertical plane as the hearing aid. This facilitates testing of directional microphones.