No, there is no need to add another device to the Phantom System, it's an all in one system. There is, inside our Phantom product range, our technologies called ADH®. ADH® operates through the following enslavement principle:
- A genuine class A amplifier directly connected to the speaker drives the output voltage: as the master, it sets the sound of the whole ADH® core. That’s why what we hear is pure analog sound.
- Several class D amplifiers are added in parallel to provide the speaker with the current it requires to sustain the output voltage. They act as slaves to the master class A amplifier, minimising its workload.
An illustration of this principle is the power steering of a car: the driver is setting the car's direction, assisted by a powerful engine to help turn the wheels , making the driver’s job effortless and hence more precise.
A specific class A amplifier is required to fit in the ADH® core: although it is most of the time highly assisted by the class D amplifiers in providing current to set the ideal voltage to the speaker, it must also be able to output a high current over a short period of time, and absorb the ripple current of the digital amplifiers.
This is achieved by a very innovative scheme for the ultra-linear class A of the ADH® core, whose level of performance is often compared to the best class A amplifiers on the market.