SpeakON Connectors: Locking Power for Speakers
SpeakON exists because 6.35 mm plugs pull out and short out on PA rigs. The locking barrel solved both.
Quick Answer
| Type | Contacts | Current | Use |
|---|---|---|---|
| NL2 | 2 pole | About 30 A | Basic speaker runs |
| NL4 | 4 pole | About 30 A | Bi amp and standard PA |
| NL8 | 8 pole | About 40 A | Multi amp cable bundles |
| STX series | 2 to 8 pole | Higher | Heavy touring |
Why PA Uses SpeakON
Locking collar
A quarter turn locks the barrel. Trips and pulls do not disconnect.
No signal confusion
SpeakON sockets accept only speaker wiring. Line level cannot be mispatched.
Touch safe contacts
Live pins are shrouded inside the barrel; no bare metal during hot patching.
Power headroom
Current ratings exceed what typical 6.35 mm speaker paths survive.
Wiring and Choosing
- Strip and tin the conductor, or use ferrules.
- Follow the pole numbering on the insert.
- Mismatch of 2 and 4 pole needs adapter leads.
- Match gauge to run length and amp power.
- Twist lock fully; a half engaged collar arcs.
Real-World Applications
- PA speaker to amp runs.
- Subwoofer high power links.
- Stage monitor feeds.
- Fixed installations with locking needs.
Related Guides
For the cable, read SpeakON cable. For 6.35 mm speaker ends, see speaker connectors. For banana ends, start with banana plugs.
FAQ
Can I use 4 pole on 2 pole gear?
Yes, wired to the standard pair; the extra poles sit idle.
Why not just quarter inch plugs?
They short on insertion and pull out under load.
Is SpeakON waterproof?
Sealed variants resist weather; standard connectors do not.
Do I need special cable?
Two core speaker cable with suitable gauge, terminated per pole numbers.