The HG series UCD amplifiers are high-end versions of the UCD180ST and UCD400ST amplifiers. They are available in 2 versions: UCD180HG and UCD400HG. They are perfect for audiophile use.

The HG modules are class D digital amplifier modules equipped with uncompromising components.

Many improvements

This model incorporates many improvements, allowing it to achieve ever higher audio performance. Here is a list of these improvements:

• Audiophile version of the modulator (chopper)
• Use of high quality resistors and capacitors for the chopper and around the input buffer
• Audiophile voltage decoupling capacitors
• Improved voltage regulator for the input buffer (HxR only)
• Audiophile input decoupling capacitors
• Even lower distortion rate
• Improved temperature stability
• Quality Potentiometers: Sealed Bourns 3362 P
• Better power FETS for faster chopping and lower THD
• Input buffer: AOP LM4562