Audio-GD offers a complete lineup of Hi-Fi equipment including DAC, headphone amplifier, DAC/AMP, PRE-AMP and, POWER-AMP. For their world-class technology, they are famous for their ACSS (AudioGD Current Signal System), power regeneration technology, and full balance technology, making them produce the most well known, powerful and transparent amplifier designs in the market. By prioritizing quality, every Audio-GD product is made with high quality components by skillful technicians. All the products went through measurement tests, listening tests, and 100 hours of burn-in before leaving the factory. Last but not least, Audio-GD offers a 10-year repair guarantee for all their products.