app engineers have launched new DM series in 2016, with 3 models of 8 channels products. The models are DM8100, DM8200 and DM8300. DM series digital amplifier is
app engineers increased new 3 models as 2nd generation ΣM series products in 2016. The models are ΣM -4122II, ΣM-4152II and ΣM-4202II.
app engineers have launched new DK series which has 2 channels(model: DK2150, DK2250 and DK2350), 4 channels(model:DK4150, DK4250 and DK4350)and 8 channels(model
MH2 series is a new generation amplifier product which app engineer team provide to users. MH2 series is with a number of patented technologies, which the power
MA series uses SMPS and Class H amplifying circuit design, which allows more current to produce effective audio power, and is with bridge and parallel functions.