- Overview
- Ipal Technology
- B&C Ipal Speakers
- Specifications
- Downloads
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.
What is an "IPAL compatible" loudspeaker?
IpalMod can work with standard transducers, but the draw-dropping results this technology grants can be obtained only by using specifically designed woofers: Powersoft has already teamed up with major loudspeakers manufacturers to develop IPAL integrated products. We encourage other manufactures to design and produce its own line of IPAL compatible speakers by providing tools and support needed to aid the process.
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.
What is an "IPAL compatible" loudspeaker?
IpalMod can work with standard transducers, but the draw-dropping results this technology grants can be obtained only by using specifically designed woofers: Powersoft has already teamed up with major loudspeakers manufacturers to develop IPAL integrated products. We encourage other manufactures to design and produce its own line of IPAL compatible speakers by providing tools and support needed to aid the process.
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 μs latency on the critical analog in-analog out feedback path, allowing real-time corrections mimicking the "analog" feedback approach.
IPAL technology is covered by the following patents:
PCT Patent N°: WO-2008-018099 - PCT Patent N°: PCT/IT98/00031 - U.S. patent N°: US 6,281,767 B1
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 μs latency on the critical analog in-analog out feedback path, allowing real-time corrections mimicking the "analog" feedback approach.
IPAL technology is covered by the following patents:
PCT Patent N°: WO-2008-018099 - PCT Patent N°: PCT/IT98/00031 - U.S. patent N°: US 6,281,767 B1
The first company to join the IPAL development team at the very birth of the project was the Italian B&C Speakers: they studied, developed and manufactured a whole new generation of unique transducers together with Powersoft engineers. B&C have been producing two IPAL compatible products since 2010: the IPAL18 and the IPAL21, an 18 inch and a 21 inch speaker respectively. These speakers have been used in many professional applications, proving their exceptional performance and reliability standards in time.Please download our "Powersoft and B&C: An Introduction To IPAL Technology" (10.35 MB)
| POWER SUPPLY | |||||
|---|---|---|---|---|---|
| Topology | Switchmode Fixed Frequency PFC Power Supply | ||||
| Mains input voltage range | 90Vac to 290Vac (allowed operational: 50Vac/dc to 320Vac/dc, 400Vac tolerant | ||||
| Power Factor | >0.95 | ||||
| Average Power Consuption | 400 VA | ||||
| Average Efficiency | 95% | ||||
| OUTPUT STAGE | |||||
|---|---|---|---|---|---|
| High Efficiency "Energy Cycling" | Switchmode Fixed Frequency Energy Recycling | ||||
| Peak to Peak Output Voltage | 390V | ||||
| Peak to Peak Output Current | 240A | ||||
| Average Efficiency | 95% | ||||
| Peak Output Power | 8,500 W | ||||
Processing and control specifications:
| Filter processing | 1xLow Pass + 1xHigh Pass Xovers (up to 48db) Butterworth/Bessel/Linkwitz-Riley; 16 x PEQ | ||||
|---|---|---|---|---|---|
| Limiters and protections | Excursion Limiter - Current & Power Limiter - Current Clamp - Clip Limiter - Brownout Limiter - Thermal | ||||
| Meters | Input & Output Voltage - Pressure - PEak & Avg Current - Peak & Avg Power - Excursion - Temperature | ||||
| VIRTUAL SPEAKER MODE | |||||
|---|---|---|---|---|---|
| Thiele-Small model parameters | Qes - Qms - Vas - Sd - Fs - Re | ||||
| Electromechanical model parameters | Cms - Mms - Rms - Bl - Sd - Re | ||||
| PRESSURE CONTROL MODE | |||||
| Impedance control parameters | Bandwidth + Added Re | ||||
| Pressure control parameters | Bandwidth - Slope - Gain | ||||
Documentation:
Software Accessories: Default Presets: |
Images:
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