What Is Phase EQ and How Do You Do it?

January 9, 2020

 

The new year is a time for trying new techniques and so that’s exactly what I’ll be explaining today. For years, I’ve been using one secret to dialing in tones in my quest for the best tones and this post for JZ mics explains how we have found one secret that makes life a whole lot easier on this journey.

 

 

 

Phase EQ is a simple approach to a complicated question - how do I get the right tone? Let's break it down to better solve this. You’ve settled on the vibe for the track, great! With this, you settle on the amplifier, do you want a more warm and glued sound (lots of chords and a constant moving pulse to the track). Or a slightly more clinical and more articulated sound (Chords, but overtones that might arpeggiate for example, or bloom from picked chords into a more fragrant strummed chord). 

Now we move on to the real part I think that has the biggest difference - the speaker and the microphones. These are actually very similar when you look at the plain points, the biggest difference is that on absorbs sound and one creates sound. For years, people have created sub speakers from Yamaha NS10 speakers and those similar due to their innate ability to receive frequencies that are so low and desperately hard to gather from a microphone within close proximity to the source. I could write forever on cabinets so I will save that for a seperate post; for now, Fender, Marshall, Mesa and Orange are some great ones to stay close to for all genres and movements you’re looking to capture in your music. 

 

Now Microphones. Phase EQ is the process of using 2 or more microphones to blend together and create one seismic sound that blossoms when you listen to it. It’s simple, straightforward and easier than you might think! 

 

 

Friedman Technique

 

One approach is the Freidman technique (fig. 1) - Simply place, for example, a JZ Dynamic HH-1 directly in the center of the cone (yes, we know it sounds bright, that's the point!). Then place another microphone, personally I LOVE the  JZ Vintage 67, at a 45 degree angle (this is called off axis) about 3 inches away from the center of the cone. Use your ears and find a warm, not to bright sound for this. It’s important that the mic’s are about an inch away from the grill cloth of the cabinet. Once you’ve recorded the track, in the computer flip the phase of the Second microphone and pull the fader all the way down. Now playback the track, and slowly bring that fader up and you’ll notice the high end, more harsh frequencies should fall away allowing you to create a much more finished sound without EQ! Use this carefully and try not to attenuate the brightness too much. 

 

 Fig. 1 Visual Representation of the Friedman Technique

 

 

2 Cabinets & 2 Microphones 

 

A second example is simply using 2 or more microphones on the same cabinet, then using more than one cabinet - You can still use the Freidman technique explained above, but you don't need to. Once you have your cabinets and microphone choices, from here it’s all in the computer. Simply dial the faders on each cabinet to find a blend between the recordings. Can you hear how different each microphone sounds?! Now when you blend these microphones in pairs with each other (we recommend bussing the pairs and then only working with one fader 2 Channels (2 mics) > into one bus channel). Because the sound source is changed so drastically from speaker to speaker, blending cabinet is an exciting way to find new tones that people haven't used before - and better yet, the phase usually stays the same, it's simply the harmonic distortion that affects the wave and therefore has been labeled phase EQ. 

 

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