In its on-going bid to optimise the performance of its monitor line, PMC has invested in advanced laser measuring equipment to help improve cabinet designs for enhanced low frequency performance.
The recently installed laser measurement system, manufactured by Klippel in Germany, has been designed to allow engineers to measure the mechanical parameters of the loudspeaker drive units with far greater accuracy than previously possible. This, says the company, permits the development of new drive units, the performance of which can be tailored to precisely suit the application in which they will be used.
According to PMC, this provides a distinct advantage for PMC over other manufacturers, on account of the ‘whole system approach’ the company takes to speaker design. In addition to more accurately determining the drive unit’s electromechanical performance, known as the Thiel/Small Parameters, the company can also measure the interaction with the ATL (Advanced Transmission Line) bass loading. By mounting a prototype drive unit in the prototype ATL and using the laser to measure the mechanical movement of the drive unit in situ, the R&D team can make adjustments to both elements in tandem to obtain the optimum performance.
Oliver Thomas, head of PMC’s R&D team, explained: “PMC is renowned for its low frequency performance through the application of the Advanced Transmission Line – and so it’s an area of system design we obviously spend a lot of time on. Using our new laser measurement package, we can accurately measure what is happening with the cone movement at very low frequencies when mounted in the ATL.
“From an engineering perspective this provides knowledge that we can use to fine tune the drive unit and ATL design in parallel and in real time. The advantages for us of this holistic approach are tremendous in the development of ATL loudspeakers and will enable even more accurate and transparent loudspeakers to be developed for our professional and domestic customers.”
Earlier this month, PMC appointed Ian Sutton to the position of divisional director, after 13 years at Bowers & Wilkins as UK sales manager. He will head up a newly-formed UK distribution business, focusing on expansion and development, while based at the company’s head office in Holme Court near Biggleswade.