the final stage.

who to trust with your mastering.

Mastering is the last thing that happens to a record, and the stage most people understand least.

Mix control surface at the dreamsdemos studio

the confusion.

what mastering actually is.

It is not "making it loud", and it is not a second mix.

It is the last set of decisions made about a finished mix: how it translates from a club to a laptop to a car, how it sits beside every other record on a playlist, and how an album holds together as one piece rather than ten separate songs.

Some of what that actually involves:

Locking in the tone of the record — the compression, saturation and EQ choices that decide how the whole thing feels.
Setting level so it holds its own next to anything else on a playlist, without being crushed flat to get there.
Matching tone and volume across every track so an album plays as one record, and judging the silence between them.
Preparing the formats each destination needs, because a streaming platform and a pressing plant do not want the same file.
Scanning every last millisecond of the track to make sure no unwanted frequency, click or noise pushes through.

Done well, most people never notice any of it — they just find the record easy to listen to. That is exactly what makes it hard to explain, and easy to undervalue.

what it takes.

why only specialists do mastering.

Three things decide whether any of the above is done well, and none of them are plugins.

a room that tells the truth.

A mastering room is engineered, not decorated. Its geometry, isolation and treatment are designed together, from the shell in, so that what the engineer hears is what is actually on the record.

A bedroom is not one. Neither is a living room, and neither is a home cinema, however good it sounds to sit in. Any room that was not purpose-built for this colours everything played in it — and every decision made in one is a correction for a problem that exists nowhere except that room.

monitoring they know cold.

Good speakers are not enough on their own.

What matters is an engineer who has spent years on the same monitoring and knows exactly how it lies to them — so they can hear past it to how the record will sound everywhere else.

Swapping in better speakers does not shortcut that. It resets it.

years of finished records.

Mastering is judgement more than processing, and judgement comes from having finished hundreds of records and heard what happened to them afterwards. It is the part no equipment list can stand in for.

It is also why the people who are good at it tend to do nothing else.

the honest part.

why we don't do mastering.

We have been producing and mixing records for years, in one of the best rooms in Madrid. We still don't master our own music here. We send it out, every time.

So when someone offers to master your record on headphones in a bedroom — with three years of experience and the best intentions in the world — weigh it against that. We do this for a living, in a room built for it, and we still don't consider ourselves the right people for this stage.

It is not that mastering can only go wrong. A great mastering engineer adds something to a record that is genuinely hard to describe and impossible to fake. It is that the gap between a great one and a well-meaning one is enormous — and it lands on the one version of your song everybody hears.

where we send ours.

who we trust.

Go to them directly — we don't take a cut and we don't handle the booking. One of these is where our own records go; the rest have the credits to end the argument. All of them charge a rate a working artist can actually reach — the rooms that only quote by the project are left off, however good they are.

locally sourced.

Mastering Mansion

visit their site.

madrid, spain english, spanish

Where our own records go, and the reason there is a local name on this page at all. Their site counts twenty-one years of mastering and more than fifteen hundred finished records.

internationally recognized.

Abbey Road

visit their site.

london, uk

Five mastering rooms, and a remote service that will take your record from anywhere. They publish their rates, which is rarer at this level than it should be.

Metropolis

visit their site.

london, uk

A converted power station in Chiswick. Their online work runs in the same rooms, with the same engineers and the same gear as an attended session — the only difference is how you book it.

AIR Studios

visit their site.

london, uk

George Martin's studio, and home to Alchemy Mastering since AIR took it on. Remote masters come back within forty-eight hours.

good to know.

questions, answered.

what does mastering actually do?

it is the last set of decisions made about a finished mix — how it translates from a club to a laptop to a car, how it sits beside other records, and how an album holds together as one piece. done well you don't notice it; the record is just easy to listen to.

do you master here?

no. we record, produce and mix — mastering is its own trade and we send our own records out for it, every time.

why not let a friend master it?

because mastering is judged on a room. without a treated space and monitoring the engineer knows cold, they are guessing at how your record sounds everywhere else — and the gap between a great mastering engineer and a well-meaning one is enormous.

what should i look for in a mastering studio?

a room built and treated for the job, monitoring the engineer has worked on for years, and finished records you can go and listen to.

what do you actually do, then?

recording, production and mixing. send us a mix to work on through the mixing page and you'll get every version in your hub.