Description
The A6001.D is an High Fidelity Mono Amplifier that Brings both Class in Design and Functionality. The Amplifier itself uses an Four Layer Printed Circuit Board (PCB)( layout that is an key component in its design and high fidelity. This helps to isolate the magnetic circuit in the power supply and Class-D modulators from the amplifier’s preamp and audio sections.
The Amplifier also utilizes Ultra High Frequency Switching, This allows for dramatically smaller magnetics and smaller transformers make an smaller amplifier possible. In addition, the higher modulation frequency makes it possible to move the output low pass filter frequency an octave higher than many other class-D designs. The output filter in Audiofrog’s new HiFi Class- designs is set to 40kHz rather than the usual 20kHz.
Audiofrog HiFi Class-D amplifiers provide noise and distortion performance that rivals the best class AB amplifiers in significantly smaller and more efficient packages. This is through their Intergrated Feedback Feature. Based on IR’s 2092 integrated class-D audio driver, feedback through an operational trans-conductance amplifier provides an analog version of an sigma-delta convertor, which shifts error in the audible frequency range upwards to the inaudible high-frequency spectrum, dramatically reducing noise in the signal. Dead time is programmable for optimization of zero-crossing with minimum distortion.
Compared to many other class-D amplifiers, Audiofrog HiFi Class-D amplifiers emit less noise, which preserves FM reception and minimizes radiated noise which may be picked up by other audio components. Audiofrog HiFi Class-D amplifiers include an dual purpose heat sink that also acts as an EMI shield. The heat sink and the bottom plate are electrically connected to each other and to one of the internal PCB layers through an trace that runs the perimeter of the board on the top and on the bottom. Combining the sink, the bottom panel and an PCB layer help to minimize EMI (electromagnetic interference) emitted from the amplifier, which prevents degradation of the radio’s FM reception.
Audiofrog HiFi Class-D amplifiers include differential inputs suitable for connection to single-ended or balanced line level sources up to 10V or speaker level sources of any kind up to 30V. Speaker level and line level inputs also include signal sensing turn on for applications in which no remote turn on lead is supplied by the vehicle’s head unit.
Audiofrog HiFi Class-D amplifiers include differential inputs suitable for connection to single-ended or balanced line level sources up to 10V or speaker level sources of any kind up to 30V. Speaker level and line level inputs also include signal sensing turn on for applications in which no remote turn on lead is supplied by the vehicle’s head unit.
