The ITI MEP-130 is where parametric equalization began. This is the complete history of serial numbers 001 and 002, from Baltimore Polytechnic Institute to Hunt Valley, a knife in an office door, Baltimore Harbor, a Craigslist listing, and a phone call with Burgess Macneal at 86.

In mastering, transformers shape tone through subtle, level-dependent interaction rather than gain. My custom Big Crunch Transformer Box lets finished mixes pass directly through selected vintage iron, adding density and cohesion without sounding processed.

The Variable Mu Compressor is the last thing that touches a master before it leaves my room. Here is what it actually does, why I use it at 1dB of gain reduction, and why that is enough.

A purpose-built mastering tape machine from The Hit Factory, with confirmed Otari delivery records, mystery modifications, and the philosophy behind when tape actually earns its place in a master.

How and when to use mid-side processing in mastering -- from taming vocals in the mid to controlling panned guitars in the sides, using dedicated hardware and a lot of restraint.

How a purpose-built NC20 mastering room, full-range monitors, and mono block amplifiers create the accurate listening environment that every mastering decision depends on.

Cassette has real technical requirements that most engineers never think about. Here is how tape stock, bias calibration, and transfer decisions shape what ends up on the shell.

A complete guide to vinyl pressing: how records are made, how to find a cutting engineer, recommended pressing plants, and what it means for mastering.

A technical guide to modifying the Dangerous Compressor’s sidechain using passive high-pass cables to shape dynamics.

Step-by-step explanation of a hardware mod to improve API 2500 stability and performance in mastering workflows.

Mastering is more than a final processing step. It's a calibrated room, a fresh set of ears, a technical pass built around translation, and a feedback loop that makes every subsequent record better. Here's what actually happens.

How you prepare and deliver your mix has a direct impact on what mastering can achieve. Here is exactly what to do before you send files.

Why leaving or removing the mix bus limiter impacts headroom, and how to give your mastering engineer flexibility.

Your mix looks clean. Every sample sits below 0 dBFS. Then someone tells you the master sounds distorted on Apple Music. Here is what actually happened and what to do about it.

Streaming platforms normalize loudness, and the number on the meter is only part of the story. Current targets by platform, how loudness range affects your master, and how to think about all of it without letting the numbers make your decisions.

Loudness is a tool. Dynamics are the material you are working with. Translation is how you know whether the decisions you made actually worked. Here is how all three fit together in mastering.

A vinyl pre-master is not your digital master with the limiter backed off. Here is what it is, what goes into it, and why it matters for how your record sounds and cuts.

Album sequencing is one of the most overlooked decisions in making a record. Here is how to think about order, energy, arc, and what changes when vinyl is in the picture.

Released singles one at a time and now building an album? Here's what actually changes when moving from single mastering to an album master, and what to send.

Most revision requests fall into two categories: specific and actionable, or vague and circular. Here is what actually helps, and why it makes the whole process better for everyone.