Chapter 7 in review

Reverb & Space

What reverb does in a mix, types and parameters, the Abbey Road technique, EQ'ing your reverb, and routing strategies for cohesive depth.

In review — this chapter is being revised and may change.

A producer named Elliot Mazer once told me that Jack Nietzsche said, “Reverb is like garlic — you can never have too much.” Of course you can have too much. But the idea is right: reverb is a wonderful effect, and in many types of music you can treat it as if it’s a member of the band — a character with its own personality and prominence, just like a guitar player or a second vocalist. It’s not something you gloss over the entire mix to smooth things out. At its best, reverb is a contributor to the song at the level of the arrangement, not just a mixing decision.

Reverb is also the most emotional of all the effects. It imparts a sense of space, which tells you where you are — and where you are tells you how you’re supposed to feel. Something impossibly big in an environment that couldn’t contain it, or something surprisingly intimate and dry — these are emotional cues that don’t require anything else to communicate. Think about the voice of God in a movie: it’s reverberant. That’s a diegetic cue that tells you something about the character’s place in the story without a single visual. (If the terms diegetic and non-diegetic aren’t familiar, they’re worth looking up — they describe whether a sound exists within the world of the story or is imposed from outside it.)

Why Reverb

Three jobs reverb does in a mix:

Creates a shared acoustic environment. Instruments that share the same reverb sound like they were recorded in the same room, even if they weren’t. This is how you make a vocal recorded in a bedroom and drums recorded in a studio feel like they belong together.
Adds depth. Reverb pushes things back in the mix. More reverb = further away. Less reverb = closer. This is the front-to-back dimension of mixing, and reverb is its primary tool.
Adds width and size. A stereo reverb spreads a mono source across the stereo field. A vocal that feels narrow and centered becomes wider and more immersive with a touch of reverb.

Types of Reverb

Room

Short, tight, natural-sounding. Simulates a small acoustic space (studio, bedroom, club stage). Use it for presence and closeness — the vocal sounds like it’s in a room with you, not in a canyon. Room reverbs add size without obvious tail.

Plate

Bright, dense, smooth. Originally created by vibrating a metal plate. Plate reverb doesn’t sound like any real room — it has a distinctive shimmer that works beautifully on vocals, snare, and guitars. It adds sustain and sparkle without muddying the low end.

Hall

Long, spacious, dramatic. Simulates a large concert hall or cathedral. Hall reverbs create distance and grandeur. Use sparingly — they fill up a mix fast. A little hall on the vocal in a ballad is lush. A lot of hall on everything is a wash of indistinct sound.

Spring

Metallic, bouncy, characterful. The sound of a vibrating spring inside a guitar amp. Not transparent or realistic — that’s the point. Spring reverb adds vintage character and is a signature of surf, rockabilly, and certain lo-fi aesthetics.

Part of choosing a reverb type is about recalling a character. If you’re going for a vintage sound — think Amy Winehouse — you might choose a spring or plate reverb because it recalls the era she’s evoking. Similarly, there’s a reason you might choose a baritone guitar or a DX7 electric piano sound over a vintage Wurlitzer — each instrument, like each reverb, elicits a time and a feeling.

Convolution (Impulse Response)

Vocabulary

Convolution Reverb

A reverb that uses a recorded sample (impulse response) of a real acoustic space to simulate its reverb characteristics. Sounds extremely realistic because you're putting your signal through the measured response of an actual room, studio, or venue. Less tweakable than algorithmic reverbs but more authentic.

Uses a recorded sample of a real space to simulate its reverb characteristics. Convolution reverbs sound extremely realistic because they are real — you’re putting your signal through the impulse response of an actual room, studio, or venue. The tradeoff: less flexibility to shape parameters, and higher CPU cost.

Reverb Parameters

Decay time: How long the reverb tail lasts. Short decay (0.5–1.5s) for tight, present sounds. Long decay (2–4s+) for spacious, dramatic effects. Match the decay to the tempo — if the reverb tail is still audible when the next note or hit arrives, it’s too long.

Diffusion: How quickly the early reflections blur into a smooth tail. High diffusion = smooth, dense tail. Low diffusion = you hear individual reflections (more like a real room with parallel walls). High diffusion is usually safer for mixing; low diffusion can sound metallic or flutter-y. Watch: Reverb: Phonons, Diffusion, Density

Damping: How quickly high frequencies decay within the reverb. High damping = the tail gets darker over time (like a room with carpet and curtains). Low damping = the tail stays bright (like a tile bathroom). Darker reverbs sit behind the mix more easily. Brighter reverbs are more obvious and forward.

Size: The simulated dimensions of the space. Larger = longer early reflection times and a more spacious character. This interacts with decay time but isn’t the same thing — a large room with heavy damping has a big feel but a controlled tail.

The Abbey Road Technique

Named after the studio where it became standard practice: use reverb on the snare (and sometimes only the snare) to create a sense of space for the entire drum kit. The ear assumes the kit was recorded in one room, so reverb on the snare makes the whole kit feel like it’s in that space — even though the kick and toms are dry.

The technique extends beyond drums. In a full mix, you often don’t need reverb on everything. A reverb on the vocal and snare, with everything else dry, can create a spacious mix that stays clear and punchy. Let the ear fill in the gaps.

Routing: Insert vs. Send

Insert

Reverb placed directly on a track as an insert plugin. The mix control blends wet and dry within the plugin. Simple to set up but inflexible — you can’t process the reverb independently, and each track gets its own reverb instance.

Send/Return (Aux)

The standard approach for mixing. Create an aux track with a reverb plugin set to 100% wet. Send signal from individual tracks to the aux via sends. Adjust each send level to control how much reverb each track gets.

Advantages:

Multiple tracks share the same reverb, putting them in the same acoustic space.
You can EQ, compress, and process the reverb return independently.
CPU-efficient — one reverb instance serves the whole mix.
Easy to automate the send levels for different song sections.

Multiple Reverbs

Most mixes use at least two reverbs:

A short reverb (room or plate, 0.8–1.5s decay) for presence and glue. Sends from drums, guitars, keys.
A long reverb (hall or plate, 2–4s decay) for depth and drama. Sends from vocal, snare, occasional special effects.

Having both lets you place instruments at different depths. Drums with a short room reverb feel close and present. The vocal with a longer plate feels further back and more atmospheric. The contrast creates depth. Watch: Anatomy of a Reverb

EQ’ing the Reverb

A reverb return that competes with your dry tracks defeats the purpose. EQ the reverb return to keep it out of the way:

High-pass the reverb at 200–400 Hz. The reverb tail doesn’t need low-end energy — that’s the kick and bass’s territory. Cutting the lows from the reverb cleans up the bottom end dramatically.
Low-pass the reverb at 6–10 kHz. A dark reverb sits behind the mix without competing with vocal sibilance, cymbal shimmer, or guitar brightness. The dry tracks provide the presence; the reverb provides the depth.

I typically like to EQ before the reverb if I can. That limits what the reverb hears, but it allows it to bloom and respond on its own terms. When the reverb is getting a signal that’s already cleaned up — no low-end rumble, no harsh sibilance — it sounds better without needing as much work on the return.

This “EQ’d reverb” trick is used on almost every professional mix. The reverb is felt more than heard — it creates space without drawing attention to itself.

Matching Reverb to Genre

Pop/R&B: Tight plate reverb on the vocal, minimal elsewhere. The vocal is up front and intimate.
Rock: Room or chamber on drums, plate on vocal, most everything else dry or with a very short ambience.
Classical/Orchestral: Long hall reverb on everything, matching the concert hall experience.
Electronic/Hip Hop: Reverb used as a creative effect (gated reverb, reverse reverb, frozen reverb) rather than for realism.
Lo-fi/Indie: Spring reverb or degraded plate for vintage character.

The genre sets the expectation. Match it first, then push against it if the song demands something different.

What to Practice

Set up two reverb returns: a short plate (1.2s decay) and a long hall (3s decay). Send different instruments to each and listen to how the depth layering creates a three-dimensional mix.
EQ a reverb return: high-pass at 300 Hz, low-pass at 8 kHz. A/B with the unprocessed reverb. Notice how the EQ’d version sits behind the mix without competing. Watch: Can’t Wait to Talk About Reverb
Experiment with pre-delay on a vocal reverb. Try 0ms, 15ms, 30ms, and 60ms. Listen to how each setting changes the clarity and distance of the vocal.
Try the Abbey Road technique: add reverb to only the snare in a drum mix. Listen to how the ear assumes the entire kit is in that space.

This Course

Take This Course Live →

Like what you're reading?

Everything in this guide is yours to keep. But reading about it isn't the same as hearing it, doing it, and having someone who's been at this for 30 years tell you why it matters in your music. This is one chapter of a live course — small group, cameras optional, taught by someone who gives a shit.

View the Mixing & Mixcraft Course →

← All Guides