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Qudelix 5K, Portable USB Bluetooth DAC Amp with Case
The experts at Qudelix wanted the device to work as a universal DACAMP for both highsensitivity IEMs as well as highimpedance openback headphones. Qudelix wanted it simple, small, yet but powerful. In addition to the sound quality and the maximum output power, they also needed to consider the battery time as well, concerning the nature of the device.
Qudelixs engineers tried many DACs and Amplifier ICs and found ESS9219C is the best option for their goal. Besides the sound quality, the primary advantage of ESS9219C is that the builtin amplifier delivers the maximum output voltage up to 2V RMS. Furthermore, it supports the 1V RMS option at the same sound quality to save power consumption.
For highsensitivity IEMs, the amplifier noise figure is the most important. The highsensitivity IEM is so sensitive that it translates every electrical noise or thermal drift into audible acoustic sound, usually white noise.
On the other hand, the highimpedance headphones require a higher power amplifier. Those headphones usually have low sensitivity, and they are free from the white noise affected by the amplifier noise characteristics. Instead, they need higher power from the amplifier output to deliver enough loudness and headroom.
at a glance Qualcomm QCC5124 Bluetooth
Dual ES9219C SABRE HiFi DAC
3.5mm Unbalanced 2.0V RMS
2.5mm Balanced 4.0V RMS
aptX Adaptive, LDAC, AAC, aptXHD
USB DAC 96KHz 24bit
High Sensitivity 3D LDS Antenna
Protective case included
