From RPM to Runout: The Vinyl Glossary Every Artist Should Know
If you’re new to pressing vinyl, it can feel like everyone suddenly speaks a different language.
RPM. DMM. Stampers. Fidelity. Lacquers. Obi strips.
Some of it sounds technical because it is. Some of it sounds mysterious because the record industry loves weird old terminology.
This guide breaks down the most common vinyl pressing terms in plain English—so whether you’re pressing your first record or just trying to understand what your manufacturer is talking about, you’re in the right place.
Formats & Record Specs
7” Record
The classic single format. Traditionally used for one song per side, promotional releases, collectible merch, jukebox-style singles, or short-form projects.
Because runtime is limited, 7” records are best when the goal is impact rather than long listening sessions.
10” Record
A less common format that sits between a 7” and 12”.
Often used for EPs, special editions, art-driven projects, or artists who simply love the format. It’s a fun creative choice—but for most first-time projects, 12” tends to offer more flexibility.
12” Record
The industry standard for most vinyl releases.
Albums, EPs, audiophile editions, and premium collector releases most commonly live here because the larger format allows for more runtime, better sequencing flexibility, and expanded packaging opportunities.
If you’re unsure where to start, this is usually it.
RPM (Revolutions Per Minute)
This refers to how fast a record spins on a turntable.
The most common options are:
33 RPM → Longer runtime, most common for albums
45 RPM → Better fidelity, shorter runtime
The speed affects both playback time and audio quality.
33 RPM
The standard playback speed for most full-length vinyl records.
Because the grooves are packed more tightly, 33 RPM allows more music per side—but may offer slightly less sonic detail than a comparable 45 RPM cut.
Best for:
Albums
Longer EPs
Budget-conscious releases
Most first-time projects
45 RPM
A faster playback speed that allows wider groove spacing.
In practical terms? This often means louder, cleaner, more detailed sound—but less available runtime.
Traditionally associated with 7” singles, but many premium 12” releases are also cut at 45 RPM for better fidelity.
Best for:
Singles
Audiophile releases
Short EPs
Collector editions
140g Vinyl
A lighter vinyl weight that has become the go-to choice for many indie artists and labels.
As manufacturing has modernized and shipping costs have risen, 140g has become a practical sweet spot: excellent quality, lower material cost, and cheaper shipping.
Great for artists who want strong quality without overbuilding the product.
180g Vinyl
A heavier, premium-feeling vinyl option.
Collectors often love 180g because it feels substantial in the hand and offers added rigidity. It’s a popular choice for deluxe editions, premium collector releases, and projects where presentation matters.
It doesn’t automatically sound better—but it can absolutely feel more premium.
Side A / Side B
The two playable sides of a standard vinyl record.
Track sequencing matters here—what goes on each side can impact playback quality, flow, and listener experience.
Runtime
How much music can physically fit on a record side.
This depends on:
record size
playback speed
audio complexity
volume levels
groove spacing
More runtime isn’t always better. Trying to squeeze too much music onto a side can compromise audio quality.
Mono
Audio where both speakers receive the same signal.
Less common for modern music, but still used intentionally for vintage authenticity, stylistic choices, or specific mastering considerations.
Stereo
Audio where left and right channels carry different information, creating width and spatial depth.
Most modern releases are stereo.
However, extreme stereo low frequencies can create playback challenges on vinyl if not handled properly.
Audio & Sound Terms
Vinyl Mastering
Preparing audio specifically for vinyl production.
A digital master made for Spotify, Apple Music, or streaming isn’t always ready for vinyl. Vinyl is a physical format, which means frequency balance, stereo imaging, loudness, and track sequencing all matter differently.
At Object Permanence, every package includes an audio inspection and optimization pass—and if deeper vinyl-specific mastering is needed, we can help coordinate that too.
Fidelity
A fancy word for how accurately audio reproduces the original recording.
Higher fidelity generally means:
more clarity
more detail
better separation
stronger dynamic nuance
In plain English: how good and true the music sounds.
Dynamic Range
The difference between the quietest and loudest parts of a recording.
A song that whispers and then explodes has strong dynamic range.
Vinyl tends to reward dynamic, thoughtfully mastered audio more than aggressively compressed digital files.
Compression
Audio processing that reduces the difference between loud and quiet sounds.
Used intentionally, compression helps shape tone, consistency, and punch.
Overused? Everything starts sounding flat, squashed, and exhausting.
Limiting
An aggressive form of compression used to prevent audio peaks from exceeding a certain threshold.
Useful in moderation.
Abused in the loudness wars.
Too much limiting can make a vinyl cut sound harsh or lifeless.
Clipping
Distortion caused when audio levels exceed what a system can cleanly reproduce.
Instead of smooth sound, the waveform gets chopped off.
Result:
crackly, distorted, unpleasant audio.
Technical term:
bad.
Frequency Response
The range of sound frequencies contained in a recording—from deep bass to crisp treble.
Vinyl handles certain frequencies differently than digital formats, particularly very low bass and aggressive high-end content.
This is one reason vinyl mastering matters.
Sibilance
Harsh “S,” “T,” or “sh” sounds in vocals.
If not managed properly, sibilance can become exaggerated on vinyl playback—especially near the inner grooves.
If you’ve ever heard a vocal sound weirdly spitty, that’s usually it.
Inner Groove Distortion
A playback issue caused by the physical geometry of vinyl.
As the needle moves toward the center of the record, grooves become tighter and more difficult to track accurately.
That’s why louder, brighter, more sonically complex songs are often better placed earlier in a side.
Sequencing matters.
Stereo Imaging
How sound is distributed between the left and right speakers.
Wide stereo imaging can sound incredible—but certain low-frequency stereo information can create problems when translating to vinyl.
A vinyl-aware mastering engineer knows how to manage this.
Loudness
How aggressively “hot” a track is mastered.
Many digital releases are mastered extremely loud to compete on streaming platforms.
Vinyl usually benefits from a more balanced approach.
Louder is not always better.
Sequencing
The order your songs appear on the record.
This is both an artistic and technical decision.
Track order affects:
listening experience
pacing
side breaks
audio performance
A delicate acoustic closer may behave differently than a loud distorted finale.
Mono
Audio where both speakers receive the same signal.
Mono can be:
intentional (for aesthetic or vintage reasons)
technically useful in some vinyl mastering situations
Not outdated. Just specific.
Stereo
Audio where left and right channels carry different information, creating width and spatial space.
Most modern music is stereo.
The trick is making sure that stereo information translates cleanly to vinyl playback.
Manufacturing Terms
DMM (Direct Metal Mastering)
A mastering process where audio is cut directly into a metal disc rather than a lacquer.
Benefits may include:
cleaner high-end detail
reduced pre-echo
improved precision
faster production workflows
Not every plant uses DMM. It’s a more specialized process.
Lacquer Cut
The traditional method of cutting audio into a lacquer-coated master disc before metalwork begins.
Think of it as the old-school standard path.
Stamper
The metal component used inside the press to physically imprint grooves into heated vinyl.
Think of it as the mold that creates your records.
Stampers wear over time, which is why large represses may require fresh metalwork.
Metalwork
The process of transforming a master cut into the metal parts needed for manufacturing.
This includes creating stampers.
One of the most important production stages.
Pressing
The actual manufacturing process.
A heated vinyl puck is placed between stampers, compressed under pressure, cooled, trimmed, and transformed into a playable record.
This is where the magic becomes physical.
Vinyl Puck / Biscuit
The heated chunk of vinyl material placed into the press before manufacturing.
Looks weirdly edible.
Not edible.
Test Pressing
A small pre-production batch used for physical review before the full run.
Historically, test pressings were essential because there was no digital way to confirm sequencing, audio flow, or translation before committing to manufacturing.
Today, many manufacturers—including us—offer digital approval workflows first.
Important to know:
test pressings happen as a separate production run
usually black vinyl only
typically use generic or house labels
changes after this stage often require restarting metalwork
Useful? Sometimes.
Required? Not always.
Digital Approval
The stage where audio is reviewed and approved before manufacturing begins.
This modern workflow helps catch issues before expensive physical production starts.
Much faster than relying solely on traditional test pressing workflows.
Quality Control (QC)
Inspection throughout production to catch defects.
This can include checking for:
noise
warping
pressing defects
label alignment
packaging issues
Good QC saves everyone headaches.
Reject Rate
The percentage of manufactured records that fail quality standards and are discarded.
All manufacturing has some level of reject rate.
The goal is minimizing it.
Overages
Extra records produced during manufacturing.
Some plants charge clients for these.
Others include them as part of the order.
Always worth asking.
Lead Time
The estimated time between placing your order and receiving finished product.
This includes queue time, manufacturing, and fulfillment timelines.
Turnaround Time
The actual time required to produce your order once everything is approved and ready to go.
Different from lead time.
Packaging Terms
Jacket
The outer cardboard sleeve that holds your vinyl record.
This is the primary packaging canvas for your artwork and branding.
For many fans, the jacket is part of the experience—not just packaging.
Gatefold
A jacket that opens like a book.
Gatefolds offer additional space for:
expanded artwork
lyrics
liner notes
photography
storytelling
premium presentation
They cost more than standard jackets, but can dramatically elevate perceived value.
Insert
A loose printed piece included inside the record package.
Common uses:
lyrics
credits
liner notes
photography
thank-you notes
fan extras
artwork
Small detail. Big impact.
Lyric Sheet
A specific type of insert containing song lyrics.
Perfect for albums where storytelling matters—or when you want fans to scream along correctly.
Obi Strip
A decorative paper band wrapped around the outside of a record jacket.
Originally common on Japanese pressings, obi strips are now often used as premium visual details for special editions, branding moments, edition numbering, or hype text.
They look cool because they are cool.
Center Labels
The printed labels applied to the center of the record itself.
Usually includes:
artist name
album title
side designation
track listing
rights info
catalog number
Custom labels are a subtle but meaningful upgrade.
Poly Sleeve
A protective plastic sleeve used inside or outside the package.
Inner sleeves protect the record.
Outer sleeves protect the jacket.
Highly recommended if longevity matters.
Shrink Wrap
Protective plastic wrapping around the finished product.
Often used for:
retail presentation
tamper evidence
shipping protection
Some artists skip it for sustainability reasons.
Download Card
A printed insert that gives buyers access to digital audio files.
A nice bridge between physical ownership and digital convenience.
UPC (Universal Product Code)
The barcode used for retail sales.
If you want your record sold in stores, through most online retailers, or through formal distribution channels, you’ll likely need one.
No UPC = many retailers won’t touch it.
This tiny box matters more than most first-timers realize.
Spine Printing
Text printed along the edge of the jacket so the release can be identified on a shelf.
Seems minor.
Actually incredibly important.
Especially if you want your record found in a crowded collection or retail bin.
Retail Ready
A product prepared for formal retail sale.
This usually means:
finished packaging
barcode / UPC
clean labeling
proper presentation
protected packaging
A beautiful record is one thing.
A beautiful record stores can actually sell is another.
Pricing & Selling Terms
MSRP (Manufacturer’s Suggested Retail Price)
The recommended retail selling price of your record.
A common rough benchmark for independent artists is pricing finished vinyl around 2.5x–4x your landed manufacturing cost, depending on packaging, exclusivity, audience, and edition size.
Example:
If your true per-unit cost is $12, your retail price might land somewhere between $30–45.
Wholesale Pricing
The price retailers pay when buying your record for resale.
A common formula:
Retail Price × 50% = Approximate Wholesale Price
Example:
Retail price = $30
Wholesale price = ~$15
If you plan to sell through stores, your manufacturing cost needs to leave room for this.
Landed Cost
Your true all-in cost per unit.
This includes more than manufacturing.
Potential components:
record production
packaging
shipping
duties (if applicable)
fulfillment prep
inserts
UPC fees
This is the number that matters when pricing your release.
MOQ (Minimum Order Quantity)
The smallest production run a manufacturer offers.
Some pressing plants only make financial sense at larger quantities.
Smaller indie-friendly plants may offer lower MOQs.
Important question to ask early.
Lead Time
The estimated total time between placing your order and receiving finished product.
Includes:
queue time
approvals
production
packaging
fulfillment
shipping
Turnaround Time
The actual time required to manufacture your order once all approvals are complete and production begins.
Different from lead time.
Nerd Corner / Collector Terms
Dead Wax / Runout Groove
The blank space between the final music groove and the center label.
Collectors love checking this area.
It may contain:
matrix numbers
hidden messages
etchings
manufacturing identifiers
Matrix Number
The identifying code etched into the runout area of a record.
Used for manufacturing tracking, pressing identification, and collector nerd arguments.
Locked Groove
A groove intentionally cut to loop endlessly instead of ending normally.
A weird and wonderful creative choice.
Etching
Decorative artwork added to a non-playable side of a record.
Often used for:
limited editions
collector releases
visual drama
No sound. Just vibes.
Color Vinyl
Records made in colors other than standard black.
Popular options:
clear
white
red
blue
custom blends
Looks fantastic.
Depending on compound and manufacturing, consistency can vary slightly compared to black vinyl.
Splatter Vinyl
A decorative vinyl effect featuring multiple colors blended or splashed together.
Maximum visual drama.
Popular with collector editions.
Picture Disc
A record with artwork embedded inside the vinyl itself.
Visually stunning.
Usually chosen for collectibility over ultimate audio fidelity.
One-Step Pressing
A premium audiophile manufacturing method that reduces production steps between the master and final pressing.
Can improve fidelity.
Usually expensive.
Very nerdy.
Lathe Cut
A record created by cutting grooves individually into a substrate, one at a time.
Important distinction:
This is not the same as professionally pressed vinyl.
Lathe cuts can be great for:
one-off keepsakes
art objects
novelty releases
But they are generally not built for the same durability, consistency, or repeated playback performance as properly pressed records.
If someone offers a “vinyl record” at a suspiciously low price for a single copy, this may be what they mean.
Final Thought
Making records combines old-school manufacturing, modern audio workflows, and enough strange terminology to make anyone’s head spin.
We believe it doesn’t have to be intimidating.
If you’re ready to start your vinyl project, explore our pressing packages or get in touch—we’re happy to help translate.