About ZuB3 connection and design

For your Zu loudspeakers which feature the ZuB3 connection, we recommend ZuB3 terminated Zu cable. If we didn’t think there was advantage in sound, never mind safety and easy of use, we wouldn’t have added it all those years ago.

ZuB3 refers to both an electromagnetic design and a connection format. The connector we use for the ZuB3 EM design is the Neutrik Speakon NL8. ZuB3 via Speakon NL8 connection maintains the functional electromagnetic characteristics of ZuB3 cable and lowers contact resistance.

There are also usage advantages to this format, it’s locking and keyed. It’s also touchless, making it amplifier and people safe—no possibility of short-circuiting the amp when making connections and no shock hazard to you.

Features of ZuB3 via Neutrik speakON NL8 connectors

• ZuB3 via Speakon NL8 lowers contact resistance over banana plugs or spades

• Maintains Zu speaker cable and Zu internal speaker cable’s ZuB3 electromagnetic characteristics through the wall of the speaker

• Connector is a cylindrical type and houses all contacts (easy and simple interconnection)

• Connector prevents shorting of amp and removes a shock hazard

• Connector is indexed (clocked) so it ensures correct connection and phase

• Connector twist locks with “click” to provide confident user experience and ensures proper contact until disconnection is desired

• Contacts are self cleaning—if there is a question of tarnish just disconnect and reconnect to wipe contacts clean

ZuB3 pin-out convention featuring Speakon NL8 connectors

We recommend factory termination/retermination of your Zu loudspeaker cable. Nevertheless, ZuB3 via Neutrik speakON NL8 termination pin-out convention is outlined for your DIY reference.