Such was the case with pop filters, devices that most engineers believe to be too subtle to be worth discussing. Not so with Sardina: “People know that pop filters are subtle things, but they think that means they are unimportant. Some people may not have the training to hear what they’re missing with a bad pop filter, perhaps because there are potentially other losses in the signal chain that are as big or bigger than those attributable to the pop filter. So they don’t think the pop filter matters. But I disagree with that view strongly. Different pop filters have very different characteristics and those ‘subtle’ differences add up to the difference between a lively, energetic recording and a flat, boring one.” (Mind you, this is coming from a 13x Grammy winner!)

By his own estimation, Sardina owns every single pop filter on the market, and he’s done every imaginable shoot-out between them, and even between combinations of them. “First, I do comparisons with and without the filter,” he said. “You have to listen to the parts of the recording without the pops to hear the difference. Of all the pop filters I have ever used, the Pauly P120 pop filter is undoubtedly the best. I don’t know what magic Pauly used, perhaps it’s the way the air moves between the two membranes, but it’s as close to utterly transparent as I’ve heard. The Pauly preserves the high-end information, the air that gives a performance life and existence between the words.” On top of owning all of the pop filters on the market, Sardina owns three Pauly’s.

Recently, Sardina used his Pauly pop filters to record vocals for Placido Domingo, Alejandro Sanz, Calle 13, Harry Connick Jr., Jordan Smith, and Ganister Vocal Works. “But pop filters have many other uses; they’re not just for vocals,” Sardina adds. “Like when I put a condenser on a kick drum: the push of air can cause things to crap out. The same sort of thing happens with a lot of brass instruments.” In that spirit, Sardina recently used his Pauly pop filters to record drums, brass, and more vocals for D’Angelo & The Vanguard, Elvis Costello And The Roots, Humane Smith, Laura Michelle, Il Volo, Stope, and Cristian Castro.