Hybrid Feedback Digital Amplifier Ver. III Despite the ultraslim design, JVC's new AV control receivers house all the amps needed for multi-channel sound. The secret to this feat is the JVC-exclusive Hybrid Feedback Digital Amp. A digital amp first digitizes the music signal, then amplifies it. The process of digital amplification combines high efficiency and reduced power dissipation through heat loss. So a digital amp requires a smaller transformer and power supply, permitting compact size and light weight. Additionally, the JVC Hybrid Feedback Digital Amp ensures superior sound by using two feedback loops. The digital feedback significantly improves the precision with which the PWM (Pulse Width Modulation) signals are generated. The analog feedback "brushes up" the waveform of the analog signal at output to match the original. What's more, this JVC exclusive design is upgraded to "Version III," which features double feedback loops for both digital and analog. It effectively reduces the distortion caused by speaker impedance, enabling even lower total harmonic distortion -- around 0.004 percent. This year (2005), a new IC dubbed "JCV8015" was developed to contain all the circuits necessary for signal processing, including dual audio input circuits, the Hybrid Feedback Signal Processing Circuit, and PWM modulators. This allows a drastic reduction in parts and a smaller "footprint."