How exactly do you use the Surfer EQ for bass? What’s the frequency range, do you use a preset? I’m quite unfamiliar with this plugin.
I’m not using it a lot anymore, but you can use it to either attenuate or accentuate different harmonics of your bass signal. It depends on the situation but for example, If I have a bass where I want to attenuate the base frequency, i’ll go ahead and accentuate one of the multiples to make up for it.