sennheiser 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...

dear Forum, I want to buy an open headphone for sound design and mixing. My budget is max 150€ (in Europe). I narrowed down the choice between the AKG k702 and the Sennheiser 560s and I am auditioning both at home. I am testing them with and without EQ (Oratory AutoEQ and Sonarworks). I can...