Buying a used Linn Sondek LP12
Since 1972 the LP12 has been upgraded piece by piece, so no two used ones are quite alike. Here's how to work out exactly which LP12 you're looking at, what each upgrade changed, and what to check before you pay.
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At a glance
- Introduced
- 1972
- Design
- Belt drive, suspended subchassis, single-point bearing
- Speeds
- 33⅓ rpm; 45 rpm depends on the motor supply (see below)
- Motor supplies (Linn)
- Basik (1972–2002), Valhalla internal board (1982–2002), Lingo external (1990–2018), Majik (from 2007), Radikal (2009 and 2021 variants), Lingo 4 (from 2018)
- Bearing and subchassis upgrades
- Cirkus bearing and stronger subchassis; Keel one-piece aluminium subchassis (2006); Karousel bearing (2020)
- Tonearm
- Not fixed; varies from deck to deck
What to check before you pay
- Identify the motor supply. Look for an internal Valhalla board, an external Lingo or Radikal box, or a basic supply. It decides how the deck changes speed and accounts for a big slice of its value, so pin it down first.
- Identify the subchassis and bearing. Ask the seller, or a Linn dealer, which subchassis and bearing are fitted. A Cirkus, Keel or Karousel upgrade moves the price considerably, and a good listing should be able to prove it.
- Suspension. Press the platter gently near the edge and let go. It should bob up and down evenly and settle, without knocking, tilting or swinging sideways. Uneven movement means the suspension needs setting up.
- Bearing and motor noise. With the deck running and no record playing, put your ear close to the plinth. A grinding or rumbling bearing, or a buzzing motor, needs attention.
- Speed. Check 33⅓ rpm, and 45 rpm if the supply offers it, with a strobe disc or a speed app. On early supplies, 45 rpm needed a pulley adaptor.
- Tonearm and cartridge. Note exactly which tonearm and cartridge are fitted and how old the stylus is. They can be worth as much as the deck itself, or need replacing straight away, and that changes the maths completely.
- Plinth and lid. Check the wooden plinth for damage, look at the lid hinges, and make sure the deck sits level on its feet.
Reported faults
Problems reported in the sources listed with each item. Not every unit has them, but they are worth asking about.
Bearing oil lost or contaminated
- What you notice
- The deck struggles to reach or hold speed.
- What the source says
- Oil can be lost from the bearing over time; contaminated or wrong oil also causes problems.
- What to check
- Ask when the bearing was last checked. Linn's manual says to use only Linn oil, to avoid damaging the bearing liner.
Authorised dealer: Hidden Systems (authorised Linn dealer), LP12 setup and servicing; Manufacturer: Linn LP12 Turntable Set Up Manual (revised January 1998)
Sagging springs and hardened grommets
- What you notice
- The suspension knocks, tilts or swings instead of moving cleanly.
- What the source says
- The suspension springs can sag and the rubber grommets can harden with age.
- What to check
- Tap the platter: the manual says the suspension should move freely and roughly straight up and down. If not, budget for a service and set-up.
Authorised dealer: Hidden Systems (authorised Linn dealer), LP12 setup and servicing; Manufacturer: Linn LP12 Turntable Set Up Manual (revised January 1998)
Stretched, dirty or perished belt
- What you notice
- Speed is low or unstable.
- What the source says
- The belt can stretch over time; the manual lists a dirty or perished belt as a fault.
- What to check
- Look at the belt and check speed with a strobe disc. A new belt is a routine part, but factor it in.
Authorised dealer: Hidden Systems (authorised Linn dealer), LP12 setup and servicing; Manufacturer: Linn LP12 Turntable Set Up Manual (revised January 1998)
Ticking or scraping motor
- What you notice
- A ticking or scraping sound from the motor area.
- What the source says
- Linn says a very soft tick from a new motor is normal and fades after about 24 hours (up to 36 hours with Lingo); a loud tick or scrape means the motor bearing needs adjusting.
- What to check
- Listen close to the plinth with the deck running and no record playing.
Manufacturer: Linn LP12 Turntable Set Up Manual (revised January 1998)
Dirty motor pulley and loose fixings
- What you notice
- Speed problems, rattles or a deck that has drifted out of adjustment.
- What the source says
- The motor pulley can get dirty and fixings can loosen over the years.
- What to check
- Ask when the deck was last serviced and by whom.
Authorised dealer: Hidden Systems (authorised Linn dealer), LP12 setup and servicing
High voltage inside (Valhalla decks)
- What you notice
- Not a fault, a safety point.
- What the source says
- Linn's manual warns that the Valhalla board carries high voltage (it states 400 V).
- What to check
- Never open the base of a deck that is plugged in. Leave internal work to someone who knows LP12s.
Manufacturer: Linn LP12 Turntable Set Up Manual (revised January 1998)
There’s no such thing as “an LP12”
The LP12 arrived in 1972, and Linn has kept it going ever since by offering upgrades for almost every part of it: the motor supply, the bearing, the subchassis, the base, the springs, the armboard. Plenty of owners have fitted them along the way. The result is a turntable family where two decks that look identical across a room can be very different underneath, and priced very differently too.
So when you’re shopping, the real question isn’t “is it an LP12?” but “which LP12 is it?” A good seller can tell you exactly which parts are fitted, and ideally show receipts from a Linn dealer. If they can’t, treat the listing with a healthy dose of caution.
The motor supply tells the story
The quickest way to place a deck in time is to look at how it’s powered:
- Early decks used a basic supply and ran at 33⅓ rpm only. Fancy a 45? That meant a pulley adaptor.
- Valhalla, a board inside the plinth, became standard in 1982.
- Lingo, an external box, arrived in 1990 and brought 45 rpm to the party.
- Radikal (2009) added a DC motor and automatic speed calibration.
Each step changes how the deck behaves day to day, and what it’s worth.
Inside the plinth: bearing and subchassis
Linn’s own 1996 information sheet describes the Cirkus upgrade as a stronger bearing with a thicker mounting flange and more oil capacity, plus a double-thickness subchassis for extra rigidity. Later came the one-piece aluminium Keel subchassis (2006) and the Karousel bearing (2020). Any of these adds real value, but only if you can confirm it’s actually fitted.
Set-up matters as much as the parts
The LP12’s suspended subchassis has to be set up correctly to work as intended. A deck that’s been moved, shipped or tinkered with may need re-tuning by someone who knows these turntables inside out. That’s no reason to walk away from a good deck, but budget for it if the suspension doesn’t move cleanly when you test it.
What to ask the seller
- Which motor supply, subchassis, bearing and base are fitted? Are there receipts?
- Which tonearm and cartridge, and how many hours on the stylus?
- When was it last set up, and by whom?
- Is the original box available? It helps a lot if the deck has to be shipped.
Which version is it?
| Model | Key difference |
|---|---|
| Early LP12 (basic supply) | 33⅓ rpm; 45 rpm only with a pulley adaptor |
| With Valhalla board | Internal crystal-controlled motor supply, standard from 1982 |
| With Lingo | External supply with 33⅓ and 45 rpm; Lingo 4 from 2018 adds motor speed management |
| With Radikal | External control box with DC motor and automatic speed calibration (2009 variant, 2021 variant) |
Related guides
Manuals
- Owner's manual Linn documentation: LP12 motor supplies (Linn)
Links open external manual archives or the manufacturer's site. We don't host these files.
Sources
- Linn documentation, LP12 motor supplies, names and dates of Basik, Valhalla, Lingo, Lingo 4, Majik, Radikal
- Linn product information, "LP12 Cirkus Upgrade", January 1996
- Wikipedia, Linn Sondek LP12, launch year, 45 rpm history, Keel, Radikal, Karousel (secondary source)