Aprašymas

The IpalMod is the hardware/software platform provided by Powersoft and selected loudspeaker manufacturers to implement Integrated Powered Adaptive Loudspeaker (IPAL) technology, a functional solution to overcome the limitations of traditional transducers thereby setting a new state of the art low frequency sound system.

The “IPAL approach” allows a sensible increase of the “mains input to acoustic output” efficiency ratio by using a full boundary-conditions processing. This new system can be used in a number of low frequency applications such as very high power and energy efficient subwoofers, steerable low frequency arrays, very low distortion high SPL systems, low frequency noise and standing waves removal.

IPAL based amplifier/loudspeaker systems offer unprecedented acoustic performances and complete control of the system’s sound reproduction, regardless of the acoustic load and conditions. This all translates into more than double output SPL capability with respect to traditional speaker systems with the same driver size. The overall efficiency of the amplifier-loudspeaker system is also superior to any traditional design.

The IpalMod consists of:

a powerful single-channel amp module able to deliver up to 8000 W
a Zero Latency DSP
a differential pressure sensing device
an optional interface board with serial networking capabilities (RS485)
software for full remote programming, diagnostics and system monitoring.

The amazing results offered by IPAL technology are possible thanks to the mix of several patented technologies developed by Powersoft:

Patented “Differential Pressure Control®”: the core of IPAL control methods. One of the greatest limits on achieving outstanding acoustical performance is the lack of a global amplifier-loudspeaker feedback system, linking the electrical and the acoustical signal directly. The “Differential Pressure Control” (DPC®) does exactly this: it allows a differential pressure signal, mechanically obtained from the two sides of the moving loudspeaker membrane, to be fed to the amplifier just as any other electrical feedback signal. This grants a complete real time characterization of the transducer and its acoustical load conditions, allowing for an input signal-to-SPL closed loop design.

Patented “Virtual Speaker” technology. The Virtual Transducer® is an amazingly powerful tool, making the real loudspeaker behave according to any user-defined model. The speaker designer can synthesize any desired driver using a dashboard to set the Thiele-Small parameters, even when not physically achievable. The bottom line is: no alterations to performance due to aging, power compression or acoustic uncertainty. The behavior of the real amp-loudspeaker system is defined by the mathematical model built by the user.

Patented “Zero Latency” DSP on board for Equalization, Filtering, Limiting, Delay. All control methods need a processing unit to correct and filter signals received from available sources. IPAL technology is based on a control method whose effectiveness strongly depends on how powerful and fast the signal processing is. That’s why we specifically designed a DSP core with an astonishing 10 s latency on the critical analog in-analog out feedback path, allowing real-time corrections mimicking the “analog” feedback approach.