Hi, I was informed by a user that we're generating some buzz here (and may be everywhere). I will like to thank many users for their feedback and posting. Let me tell you a little about us and also try to answer some of the questions.
We're a new company and have been working on power conversion and amplifier for the past 3 years. Our CTO was the principal architect of the Tomahawk cruise missile power system and he designed many highly reliable power and control systems. Switching amplifier design is primarily a feedback and control and power system problem. So we applied our proprietary modulation scheme and close-loop design to a classic class-D amplifier topology. Just like many other derivative Class D system out there (Class T, etc), the fundamental topology is similar to Class D but you can call it anything you want. It is just marketing.
We like to present technical information as accurate as possible without marketing hype and let our customers speak for us.
We called our amplifier "Analog Switching Amplifier" to differentiate it from other switching amplifiers that use DSP or digital techniques. Our PWM is clockless and in our system, there is no sampling and no decimation error . The modulated signal represents the engery of the input signal. Our system is close-loop in that any error (all amplifiers have error) is being feedback from the speaker terminal and corrected at every cycle. Phase shift is another problem for most amplifiers, but not ours.
Some of the quesitons were posted before we updated our website. So, please check
www.nuforce.com frequently for new FAQ, technical information, products, reviews or dealers.
There is a good FAQ on Power rating. This is one of the most confusing area (especially due to a lot of marketing hype and manipulatoin with spec). RMS power is the maxmium continuous power you can derive from the power supply. Therefore regardless of the output load, it is the same. We have published power rating for 4 ohm (we can put up the numbers for 2 ohm but it is just a multiplication). Our amplifier can drive just about any output load (within the limitation of the power supply).
Jason
President, NuForce
