Hello, what's your opinion about pair with th909?I use the hekse on Euphoria and after noon on the dial it clips but it sounds good. Headphones in my stable that work are Empyrean, LCD4, Verite, RAD-0, Fostex TH909, Kennerton Gjallarhorn. The rest don’t work because sensitivity is to low. I was surprised that the RAD-0 work because it’s below 32 ohms which is the claimed lowest impedance of the Euphoria. The rest of the headphones clip the amp after 12 anything below is fine just low to very low volume. If you are buying low impedance cans make sure they have high sensitivity.
Thanks