Vintage Studio Monitors That Defined Sound

Every mixing decision made in a recording studio is only as good as what the engineer hears when they make it. The monitors are not just speakers. They are the reference point for every call about level, balance, frequency, and space. Get the monitors right, and a good engineer makes good decisions. Give them a pair of speakers that flatters the mix, and you end up with a record that sounds great in the studio and wrong everywhere else.

This is why the choice of monitor has always mattered enormously, and why the monitors used in the great recording studios of the 1960s, 1970s, and 1980s were as carefully selected as the consoles and microphones. Each one had a specific character. Engineers learned what that character was and how to compensate for it, or use it deliberately. The result was a shared language of reference that shaped the sound of recorded music for decades.

At Tapetown, monitoring is one of the aspects of the studio we take most seriously. The decisions made during mixing at our studio, decisions about how a live session recording sounds, how the room sits in the mix, how instruments relate to each other, are only meaningful if the monitoring environment is accurate. Understanding what the great vintage monitors were doing, and why engineers trusted them, is part of understanding what accurate monitoring means.

Ten monitors that shaped the sound of recording

Altec 604 Duplex

The Altec 604 was installed at Abbey Road Studios and used on Beatles recordings in the 1960s. It is a coaxial design: woofer and tweeter sharing the same axis, which gives it an imaging precision that separate driver arrangements often lack. The 604's frequency response is not flat by modern standards. The high-mid range has a specific brightness that experienced engineers used as a diagnostic tool: if a mix sounded balanced through the 604, it would typically translate well outside the studio.

JBL 4320

The JBL 4320 was the studio monitor of Motown. Marvin Gaye's What's Going On was mixed using these speakers, which tells you everything about the low-end character: warm, full, and specific about the relationship between bass and kick. The Motown sound is partly a production philosophy and partly what happens when a team of world-class musicians and engineers develop an instinctive understanding of what a particular pair of speakers is telling them. The 4320 was central to that.

Tannoy Dual Concentric

The Tannoy Dual Concentric design places the tweeter in the throat of the bass driver, creating a point source for all frequencies. Used extensively in EMI Studios for classical and orchestral recording, the Tannoys were trusted for their imaging of complex acoustic material where the spatial relationships between instruments had to be reproduced accurately. Engineers working with orchestras need to hear exactly where a cello sits relative to the violins. The Tannoy made that information audible.

Yamaha NS-10M

The NS-10M was originally a domestic speaker that engineers started importing into control rooms in the late 1970s because of a specific quality: it was unforgiving. The NS-10 does not flatter a mix. If a mix sounds good through NS-10s, it will sound good on a domestic stereo, in a car, through a phone speaker. The bright, forward character that makes them uncomfortable to listen to at volume is exactly what made them useful as a reference. They became standard in studios worldwide through the 1980s. The particular white paper cone is so associated with the sound that engineers have been known to tape tissue paper over other tweeters to approximate what NS-10s do.

Urei 813

The Urei 813 used a time-aligned design to address a problem that most monitor speakers had: that the tweeter and woofer, physically separated, produce sound that arrives at the listener's ears at slightly different times, creating phase anomalies in the critical crossover region. Time alignment, physically offsetting the drivers so that sound from both reaches the listener simultaneously, produces a more coherent image. The Record Plant in Los Angeles used 813s extensively. Fleetwood Mac's Rumours was mixed through them.

Genelec 1019A

Genelec were early pioneers of the active monitor, building the amplifier into the speaker cabinet to control the relationship between amplifier and driver precisely. The 1019A, from the late 1970s, was adopted by European studios including those working on electronic music. Kraftwerk's Computer World was monitored through Genelecs. For electronic music in particular, where the bass frequencies are synthesised rather than acoustic and need to be reproduced accurately to make mixing decisions about them, the Genelec's clean, controlled low end was essential.

Auratone 5C Super Sound Cube

The Auratone is the opposite of an impressive speaker. It is a small, single-driver cube with a frequency response that cuts off sharply at both ends and produces almost no bass. Its value is precisely those limitations. A mix that sounds coherent through an Auratone where the vocal sits correctly, where the mid-range elements are balanced, will survive translation to every impoverished playback system in the world: a kitchen radio, a laptop speaker, a phone. Tom Petty's Damn the Torpedoes was checked through Auratones. Engineers who have mixed great records know that the Auratone is often the most honest monitor in the room.

Rogers LS3/5A

The LS3/5A was developed by the BBC for outside broadcast work, monitoring in cramped environments where large speakers were not practical. Its accuracy in the midrange and the upper bass, the frequencies where the human voice sits, made it exceptionally useful for speech. Recording studios adopted it as a small near-field reference for the same reason. The vocal intelligibility that the LS3/5A reveals is the quality that most mixes are ultimately judged on. A generation of BBC engineers developed their ear on these speakers, which is reflected in the specific sonic quality of British broadcast recordings from the 1970s and 1980s.

Klein + Hummel OY

The Klein + Hummel OY was the reference monitor in German classical and broadcast recording studios through the 1960s and 1970s. Its character is precise and slightly cool, and very accurate in a way that makes it unforgiving of frequency imbalances that warmer speakers might obscure. German classical recordings of that era have a specific sonic quality: transparent, dynamically honest, spatially precise. The OY is a significant reason why. Engineers who mix acoustic music, where the natural frequency balance of instruments needs to be preserved rather than shaped, trusted it for exactly these reasons.

Western Electric 630A

The Western Electric 630A predates the era of the recording studio as we understand it. Used in early Capitol Records studios in Los Angeles in the late 1940s and early 1950s, the 630A shaped the monitoring environment for Frank Sinatra's first major recordings. The warmth and roundness of those recordings is partly the microphones and the room, and partly what a large single-driver system does to the way an engineer hears. Understanding why those records sound the way they do means accounting for what the engineer was hearing when they made them.

What the choice of monitor tells you about a studio

Every studio makes a statement with its choice of monitors. A studio running NS-10s tells you they care about translation, that they want to know if the mix will survive the real world. A studio with large-format Altecs or JBLs tells you they want to feel the record, to experience it physically as well as analytically. A studio with Genelecs tells you they trust accuracy and linearity.

The vintage monitors above were built by people trying to solve the same problem we are still solving: how do you hear clearly enough to make decisions that result in a record that sounds like what you intended?

Interested in the studios where these monitors lived? Read about Puk Studios in Denmark, or the legendary Sound City Studios. You can also read up on some of the most legendary mixing consoles that shaped recording studios

Tapetown Studio — Mixing — How we mix live recordings