LESS HD8 Single End HEADPHONE AMP.
Portable full discrete single end amplifier
Introduce： Less HD8 full discrete single end amplifier suitable for portable Hi-End user,design base on the sounds natural，and hi dynamic . HD8 is base on Marantz classic HDAM circuit to modify ,increase all the transter idle current and output power，and push the circuit working on class A operation，make the output voltage more stable， Line amp first step using Hi-End twins JFET 2SK389BL，keep the high quality preformance. HD8 output stage using Marantz SA3 Mirror Buffer amplifier，2SB139/140 is the power output transter ，they workong on class A operation too.
HD8 single end amplifier----Specification
Total Harmonic : 0.0001%(1Khz) Signal to noise Ratio : >128DB（Minimum）;>108DB(Maximum) Output Power : 165mW/600ohm；330mW/300ohm
；1000mW/100ohm；3300mW/32ohm Fequence response : 10Hz-25KHz(-0.5DB) Gain ：15dB （HIGH）:10dB（LOW） Charging voltage : DC IN 5V (TYPE-C) Battery : 3.7V Li-on Battery capacity : 5000mAh Dimension ：W85XL120XH20mm Net Weight : 270g Color ：Magnetic Blue Idle times : Around 8 hrs
（Full packing included：HD8*1、TYPE-C cable*1，3.5mm TO 3.5mm jumper*1，HD8 User menu*1，Warranty card*1。）
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