hd 560s

Hi, I have a Topping DX1 which has a "Gain" switch on the back with options: L and H. I plan to buy Sennheiser HD 560S headphones tomorrow, which have the following specifications: Impedance: 120 Ohms Sound pressure level (SPL): 110 dB (1kHz, 1 Vrms) While Topping DX1 has the following...

Hello I would like you to help me in the group because I have a doubt. I like to listen to hi-fi music in .flac and .MQA with Tidal in master quality and also play video games. and I want to buy some of these two headphones but I don't know which one to buy, the sennheiser hd 560s or the hifiman...