Beware of Color in Your AD/DA Converters
Posted by Jim Pavett on 6th Oct 2023
Converter quality comes up constantly in recording conversations — and for good reason. Your AD/DA converter is a critical link in your signal chain. Every piece of audio you record and every mix you hear passes through it. That decision deserves real thought before you spend money.
But here is the thing most people miss when shopping for converters: the question is not just which converter sounds best. The question is whether your converter is telling you the truth.
What Color Means
Color in a converter means the unit is not trying to be transparent. It is adding something — a bump in the low end, a sweetened top, a particular harmonic character — instead of converting your audio as accurately as possible. Some converters do this by design. Others do it as a byproduct of their circuit topology.
Color is not inherently bad. It can be a legitimate creative tool. But you need to understand exactly where in your signal chain it lives — because the placement of a colored converter determines whether it helps you or quietly destroys your ability to hear what you are actually making.
The D/A Problem
Here is where engineers get into trouble.
Having color on your D/A — the output side — means you are never hearing your actual product. What reaches your ears after a colored D/A is not what your final file sounds like. It has an additional pass of color on top of it. Think of it like a generation loss on an old tape deck — you are hearing a version of your mix, not the mix itself.
This compounds quickly. A mix being sent to your hard drive is likely bypassing your converter output entirely. If you send a mix out through your converters and bring it back in, you are now adding color on the A/D going in, the D/A coming back out, and a virtual D/A for monitoring — three passes of color from where you started. Your reference point is completely compromised.
This is why I stand behind pristine, uncolored D/A converters for mixing and mastering. A transparent D/A eliminates this cyclical problem entirely. What you hear is what your client will hear. That is the only reference that matters.
It is also why mastering engineers have historically gravitated toward converters from manufacturers like Lynx and Merging Technologies — because in mastering, the accuracy of what you hear is everything.
Where Color Can Work For You
If you love the sound of a colored converter and believe it contributes to what makes your recordings unique — keep it. Just be strategic about where it lives.
Use colored converters on your A/D side only — the input side, where you are capturing the source. Apogee, Universal Audio, and Burl are examples of converters with known color character that many engineers use deliberately on the front end for exactly this reason. You get the sonic character you want on the way in, while your D/A stays pristine on the way out.
The result: you capture the sound you are after, and you hear your final product accurately. Both things can coexist — but only if you place them correctly.
The Practical Takeaway
Before you buy a converter, ask the manufacturer one question: is this unit designed to be transparent, or does it have a sonic character? If they cannot answer that directly, keep looking.
For pristine D/A conversion — the kind that gives you an accurate reference for mixing and mastering — I carry Lynx at Pure Wave Audio. The Lynx Aurora & Hilo line represents some of the most accurate conversion available at any price point. I use it at my studio because I need to know what I am actually hearing.
If you want to talk through where a converter fits in your specific setup, hit reply. Getting this decision right saves you from chasing problems that were never really in your mix.