Neutrik NL4FX Speakon SPX Series 4-Pole Cable Connector

Brand:|Model: NL4FX
The Neutrik NL4FX is the third generation of Speakon pro audio speaker connector. It features a higher current rating for the operation of high power pro audio speakers and power amplifiers carrying more than 1,000 watts—all with the same quality you've come to expect from Neutrik!
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Part # 092-190
  • Worldwide standard for high power pro audio speaker connectors
  • 4-pole connection is ideal for bi-amped speaker applications
  • Ergonomic design for user friendly handling
  • New, simple 3-piece design for easy assembly without tools

Product Details

Neutrik NL4FX Speakon SPX Series 4-Pole Cable Connector

Neutrik's Speakon® SPX Series professional loudspeaker and amplifier connectors are now comprised of only three pieces, including a new one-piece strain relief that accepts a wide variety (6 mm~14 mm) of cable diameters. The Neutrik NL4FX's design is more ergonomic, with a larger latch and rear boot for easier handling. Straight (NL4FX) and right angle (NL4FRX) versions with "quick change" (LRX kit) feature allow users to convert a straight connector to a right angle and back without disconnecting the cable!

This new series of Neutrik Speakon® SPX connectors features a higher 50-amp current rating for usage with high-powered live sound speakers and power amplifiers carrying more than 1,000 watts. Assembly of these worldwide-standard pro speaker connectors is now faster and easier than ever before, with less parts to handle than the original NL4FC and a redesigned insert that does not require any special tools.

Specifications: • Connector type: Cable connector, straight, 4-pole • Rated current per contact: 40 amp RMS continuous, 50 amp audio signal (50% duty cycle) • Wiring: Screw-type terminals or soldering • Mfg. #NL4FX.

Note: Speakon® SPX is compatible with the standard NL4 series of connectors.

Product Specifications
  • Circuit4-Pole
  • Mounting TypeCable Mount
  • GenderFemale
Neutrik NL4FX Speakon SPX Series 4-Pole Cable Connector
  • BrandNeutrik
  • ModelNL4FX
  • Part Number092-190
  • UPC7613187000034
  • Product CategoryspeakON / HPC Speaker Connectors
  • Unit of MeasureEA
  • Product Rating
    (33 Reviews)
  • Weight0.15 lbs.
  • California Prop 65

    Warning: California residents only. Please note per Proposition 65 that this product may contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.

View similar products to the Neutrik NL4FX Speakon SPX Series 4-Pole Cable Connector
in the speakON / HPC Speaker Connectors product category.


Neutrik NL4FX Speakon SPX Series 4-Pole Cable Connector
Neutrik NL4FX Speakon SPX Series 4-Pole Cable Connector is rated 4.8485 out of 5 by 33.
Rated 5 out of 5 by from Easy and reliableI have made up more cables that I care to even think about. I have tried other brands in the past when I thought I could save a couple of dollars and they were only for spare cables. I learned my lesson then and have not used anything else since. The NL4FX connectors are top notch quality. They will easily accept the 13 gauge speaker cable I normally use. They are clearly marked and you can tighten them down very snug without worrying about anything cracking. Unless Neutrik comes out with something even better I will continue to use this connector for sure on all of our rigs.
Date published: 2014-06-01
Rated 5 out of 5 by from Great connector!I purchased these to use with a pro amp since it did not have bare wire connectors. It took about 15 minutes from start to finish to strip the wire until I was listening to the sub again.The build quality on these is great it is just a little hard to see the +,- pin outs.
Date published: 2014-04-24
Rated 4 out of 5 by from east locked in connections...neutrik connectors are easy to assemble, connecting wires for single two way or this neutrik can be used to by-amp...
Date published: 2013-10-08
Rated 5 out of 5 by from Great ProductThis is a great connector. Quick and easy if you are making your own cables or repairing old ones. Honestly, have never had to repair a broken Speakon connector, they are durable. A great choice!
Date published: 2013-09-23
Rated 5 out of 5 by from Speakon is the way to goI converted most of my speakers over to Speakon. This connector worked great on my speaker cable. I use 10 gauge speaker cable and fit in the connector (just don't twist the copper). The strain relief works great and the connector feels solid.Very happy I went this route. I saved a lot of hassle and time during setup and tear-down.
Date published: 2013-07-17
Rated 5 out of 5 by from Neutrik cable connectorJust what I needed solder or compression fittings.
Date published: 2013-04-16
  • 2015-09-02T07:26CST
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Product Q&A

Get your questions answered from other customers
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Neutrik NL4FX Speakon SPX Series 4-Pole Cable Connector

Are these 1/4 inch to Speakon?

Asked by: Greg D
This is just the speakon connector. the 1/4 to speakon adapter is in the link below
Answered by: Chrisf
Date published: 2015-04-07

What is the difference between NL4FC and NL4FX

Asked by: Chrisp88
The NL4FX connectors are rated for higher current loads than the FC models.
Answered by: MattP
Date published: 2014-11-26

What in specific does it do? Does help the sound for a turntable old ) LPs records? 

Asked by: wilsn
This is a speaker cable connector designed to connect (typically) pro sound speakers to amplifiers. They are used as modern replacements to 1/4" cables in most cases because they lock and are very durable.
Answered by: MattP
Date published: 2014-10-15

Will the Neutrik NL4FX Speakon SPX cable connector work, Fit etc.. with the Neutrik NL4MP Speakon Connector 4 pole Panel Mount ? Just making sure before I order anything.

Asked by: DMS LV
Yes. The NL4FX Connector fits the NL4MP Jack.
Answered by: TomI
Date published: 2014-09-30

can I use the NL4FX for stereo application? (1 channel of my crown)

Asked by: Waynemann
Yes these will work well for that application.
Answered by: MattP
Date published: 2014-04-24

Portable Speaker Project

I am building a speaker project which will consist of three parts. A box with a sub and power controls, and two bookshelf speakers each of which will also have a small 12V battery in them. Can I send the audio signal through two of the conductors and power through the other two?Also, What gauge of wire does this connector support? It says above it will take somewhere between 6mm and 14mm wire... looking at a chart that translates to anywhere between 2 Gauge and up to 0000 wire. Thats big wire and doesnt sound right... that would be bigger than the connector itself... So any help on that would be great too.Lastly, I imagine it is not possible to cross the contacts over when connecting the jack to the plug. There is only one correct way to connect the jack to the plug meaning if I have power on two of the conductors and audio on the other two, they will never be crossed over ruining my equipment.
Asked by: whatup
These connectors are not rated to carry electrical energy from a wall outlet per the Neutrik description. The 6 mm - 14 mm dimensions you mentioned refer to the outside diameter of the cable this connector will accommodate.For power applications please search Neutrik powerCon on the PE website to find the configuration to fit your application.We typically use 12AWG wire in this connector which is for our high powered sub setup.Internally the connector will have four poles which will be marked 1+,1-, and 2+, 2-. After you complete the wiring please make sure to do a continuity test to insure no wires are crossed.Good luck with your project.
Answered by: michijim
Date published: 2013-02-04
  • 2015-09-02T08:53CST
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