DJ Equipment · · 6 min read

Used DJ Equipment: The 9-Point Checklist for Clubs and Bars

Jog wheels, cue buttons, outputs and firmware: the parts of a used CDJ or turntable that fail first, and how to test them in ten minutes.


Club DJ gear lives a hard life: smoke, spilled drinks, and hundreds of hands a week. Most of what fails is mechanical, which means you can find it during a short inspection.

1. Jog wheel feel

Spin the jog wheel and let it coast. It should stop smoothly without grinding or a wobbling edge. On a CDJ, press the top plate at four points: any click or uneven travel means a worn bearing assembly.

2. Cue and play buttons

Press every button twenty times. They should return crisply. Mushy buttons are the first sign of a unit that has been in a booth for years, and replacement button boards are not cheap on current models.

3. Fader and crossfader

On a mixer, move every fader slowly and listen for crackle. Then move it fast. A fader that is clean at slow speed but noisy at speed needs replacement, not cleaning.

4. USB and SD ports

Bring a stick formatted the way the venue uses it. Load a track, browse a folder, eject, reinsert. Ports loosen over time and a loose port will drop a set at 1 a.m.

5. Digital and analog outputs

Test both. RCA jacks crack internally, and digital coax outputs sometimes fail while analog still works, which hides the fault until you connect to a digital mixer.

6. Display condition

Look at the screen at an angle with a torch. Dead pixels and delamination are common on older touchscreens and cannot be repaired cheaply.

7. Firmware and model number

Check the firmware is current for the model, and confirm the model number on the label matches the listing. There are a lot of refurbished units sold as original stock.

8. Turntable specifics

For turntables, check platter wobble, speed stability at 33 and 45, the pitch fader range, and tonearm bearing play. A worn tonearm bearing is audible as distortion on loud passages.

9. Service history

Ask which venue the unit came from and whether it was ever serviced. Units from hotel installs are usually in better shape than units from festival rental fleets, even when the cosmetics look similar.

What to pay

Current-model CDJs hold value well; expect 45-60% of new price for grade B. Turntables hold value even better, especially direct-drive models with a documented service history.

We test jog response, cue feel, both outputs and firmware on every player we list. See the current Pioneer DJ CDJ-3000 stock or the Technics SL-1200GR turntables.


Related equipment

Need a system sized for your room?

Send your room dimensions, ceiling height and music style. We will reply with a recommended used system and a landed-cost estimate.

Request a quote