The SK18752 chip is only found in audio products produced in Japan, with SONY being the most commonly used, and only a small amount found in Tenryu Denon. The size of SK18752 is much larger than LM1875, and the packaging size is equivalent to 5200.
Due to the lack of official data, after repeated testing, it has been calculated that the rated operating voltage of SK18752 chip should be around ± 33V, with output power 30W@8 Ω.
This machine uses a total of 8 SK18752 in parallel as outputs. Despite its small size, the thrust is quite impressive, with an output power of 135W per channel. The measured continuous output power is not distorted, and the thrust is strong. Its sound characteristics are bright in the mid to high frequencies and good in the low frequencies. More pleasing to the ears of good people. It should be that the Japanese did specialized tuning processing when developing these products based on LM1 875, coupled with better semiconductor technology. Apart from using the LM18752 chip in a SONY amplifier, no other Japanese audio products have been found to use the LM1 8752 circuit from the United States.
The sound characteristics of SK18752 chip are bright mid high frequency and good low-frequency intensity, which is more pleasing to the ear
Model: A15
Power: 135W 4-8 Ω Recommended 3-15 inch speaker
Operating voltage: AC115V/230V switchable
Size: 240mm wide X120mm high X258mm deep
Weight: Net weight of the whole machine is 7.1KG
