Totally Tubular to a Plethora of Plugins: The Good, the Bad & the Ugly of Sound

The good, the bad, and the ugly of sound—from glowing glass to a glowing screen.

I was holding a little Telefunken vacuum tube the other day. It fit between two fingers, yet it sent me down a rather large rabbit hole: how did we get from these tiny glass workers to a computer containing enough plug-ins to keep me scrolling until Tuesday? And with all this progress, why can a gorgeous record still end up sounding like it was delivered through a paper cup?

A very short trip through the signal chain

Vacuum tubes amplified early audio signals and powered generations of microphones, preamps, consoles, and compressors. Magnetic tape made recording, editing, and overdubbing far more flexible in the mid-twentieth century. Solid-state electronics then brought smaller, cooler, more reliable designs. Digital recording developed through the 1970s, the CD took off in the 1980s, and eventually the computer turned the studio into an editable, recallable universe.

Every era solved real problems. Tape had hiss, wear, and alignment to worry about; digital gave us clean copies, precise edits, and instant recall. I love being able to adjust a mix without rewinding a reel and asking everyone to hold their breath. I also love a tube compressor that makes a vocal lean forward in exactly the right way. Both things can be true.

The actual little Telefunken that started this conversation.

The good: character with a purpose

A tube or tape circuit can be nonlinear in pleasing ways. Driven thoughtfully, it may add harmonics, soften a transient, or make a sound feel denser. That is a color choice, not a certificate that everything old is automatically better. A poorly maintained analog box can add noise and distortion you never invited; a great plug-in can be musical, precise, and wonderfully repeatable.

At StosLabs, I use a hybrid path because I want choices. Digital tools give me detailed editing, automation, measurement, and control. I bring in analog EQ or compression when its particular behavior serves the song. Then I gain-stage and compare at matched levels. “Warmer” is a feeling worth pursuing; “louder” is a trick your ears pull on you.

The bad: convenience has a price tag

MP3 was an ingenious answer to a 1990s problem: how do we make music files small enough to store and move around? Perceptual coding removes information judged less likely to be heard. At sensible settings it can be impressive. At low bitrates, or after repeated lossy encoding, cymbals, reverbs, and busy passages may reveal the compromise. The codec did its job; it just was not hired to preserve every bit.

Bluetooth adds another possible handoff. Depending on the devices and codec, even a lossless source may be encoded for the wireless link. Other paths can keep the music lossless over Wi-Fi or a cable. A conversion is not an act of vandalism by itself: well-designed A/D and D/A stages can be very transparent. Problems depend on the implementation, settings, and whether somebody keeps turning a lossy file into another lossy file, like photocopying a photocopy until the drummer loses a cymbal.

And let’s be fair to the present. Streaming is not synonymous with MP3. Apple Music offers lossless, and Spotify added lossless playback in 2025. The listener’s selected quality, device, connection, and playback setup still decide what reaches the ears. Technology has given us options; it has not chosen the best one for us.

The ugly: impressive numbers, wrong priorities

Here is the delicious irony. Sony and Philips were promoting Super Audio CD and Direct Stream Digital in the late 1990s. DSD records a one-bit stream at 2.8224 million samples per second. Around the same broad era, smaller lossy files were winning the convenience race. These were answers to different questions—maximum-fidelity ambitions on one side, portability and bandwidth on the other. The public did not gather in a room and vote against good sound. They wanted the song to load before the subway doors closed.

I hear “100 kHz” invoked as if we can hear a dog whistle from three boroughs away. Analog signals are continuous in time, and some equipment or high-resolution formats can carry ultrasonic energy. That does not mean every tape machine records flat to 100 kHz, that a 2.8224 MHz DSD sample rate is its audible bandwidth, or that ultrasonics make a better song. A 192 kHz PCM sample rate has a theoretical Nyquist limit of 96 kHz; that number tells us a limit of the sampling system, not whether the mix has soul.

The bigger ugly is spending a fortune on format and ignoring the music, the mastering, and the room. A bass note that rings too long at the listening position can fool an engineer into changing the record. No premium file format will tell you that the room is lying.

What I actually chase at StosLabs

I focus on the source, the performance, and the decisions we can hear. I treat and measure the room, check speaker and listening positions, pay attention to low-frequency decay, then use clean digital tools and selected analog color where they help. The goal is a mix or master that feels alive here and translates out there—not a trophy for the longest spec sheet.

So yes, I will happily use a vintage tube and a modern plug-in in the same session. The tube does not know it is vintage. The plug-in does not know it is modern. The song, thankfully, does not care about my equipment arguments.

It just wants to move somebody.

— Christos “Stos” Tsantilis