Hill Acoustics products

The TTC1500, is our largest chamber (so far), like all Tetrahedral Test Chambers it shares the underlying structural simplicity, stability and accuracy.

The TTC 900 is a medium to large test chamber it is capable of measuring up to a 12" loudspeaker drive units at 316mm. The TTC 900 was our first test chamber, launched at the Audio Engineering Societies, Loudspeaker and Headphone 51st Conference in Helsinki, Finland in August 2013. Upon returning to the UK this TTC 900 was installed at Neat Acoustics where it has been measuring loudspeaker drive units for the past 5 years.

The TTC 750, is a medium sized test chamber it is designed to measure loudspeakers up to approximately 8" or 200mm at a distance of 316mm, This chamber was designed so that it will just go through a normal domestic or office door! Several TTC 750`s are in use some as general purpose test chambers and one testing small subwoofer drive units.

The TTC 350 is designed to measure loudspeaker drive units up to approximately 4" or 100mm so it is suitable for QC and production testing on typically small loudspeakers that are common today. The TTC 350 was introduced at the Audio Engineering Society 135th Convention in New York, between the 17-20 October 2013. At this convention Geoff Hill presented an Engineering Brief "Consistently Stable Loudspeaker Measurements using a Tetrahedral Enclosure"