iBasso AMP8 is a fully discrete balanced amp with a 4.4mm output port specially designed for iBasso DX200/DX220 and iBasso DX150 music players.
Featuring both a high voltage and current output, high current output is very useful for low impedance multi drivers in-ear monitors.
When using OPAMPs to develop an amplifier, it is almost impossible to achieve high voltage output and high current output, especially, on portable devices. Some engineers have used the TPA6120 on the buffer stage to achieve 750mA output current. However, it has 10ohm output impedance, which isn’t ideal for low impedance IEMs or headphones.
So, iBasso decided to use discrete components which are usually used on desktop amplifiers to develop the iBasso AMP8 but the development process is much more difficult when using discrete components. After a long development period and with their final design, iBasso presents the AMP8 card that has both high voltage and high current output and at the same time maintains low output impedance with extremely good measurements. AMP8 complements the premium performance of the DX150 and the DX200, giving you even more choices when playing the music you enjoy.
Low VCE transistors are utilized and are manually sorted and paired, providing better consistency and linearity. The low VCE also expands the linearity range.
The transistors used on the buffer stage have a 2700mAh output current rating, which allows the AMP8 to drive IEMs and headphones that require high current with ease.
A Pentaconn 4.4mm balanced output port is used. The large double contact area of this socket contact lowers resistance and allows better current transmission.
Average Play Time: 7 hours. Play time varies with different sample/bit rates, volume and headphone/IEM loads.