Luxsin Audio X8 DAC and Headphone Amplifier Campfire ER4XR adds 1-2dB to the

ER4XR adds 1-2dB to the mid-bass frequencies (below 200Hz) and 3-4dB to the lower-bass and sub-bass (below 100Hz)

Taken together

and ACCENTUM True Wireless Earbuds

Bose HP700-BS4-PL-BK

change inputs

Luxsin Audio X8 DAC and Headphone Amplifier Campfire ER4XR adds 1-2dB to the8 CS43198 DAC The X8 features eight Cirrus Logic CS43198 DAC chips in a true dual mono parallel architecture, with four DACs operating in parallel per channel. Left and right channels are fully independent in power supply, circuit layout, and signal path, minimising crosstalk and interference. The parallel analogue outputs are precisely summed to reduce noise and improve dynamic range, signal to noise ratio, and low level detail, resulting in stable