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!
In Stock
Your Price
Buy 25-99 $3.99
Buy 100-999 $3.88
Buy 1000+$3.74
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
    (35 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 4.8571 out of 5 by 35.
Rated 5 out of 5 by from Great new connectorsThese new connectors are easier to use than previous connectors I bought. They feel solid.
Date published: 2015-09-28
Rated 5 out of 5 by from They Just Work...I've bought these and the mating NL4MP/NL4MPR with just about every order I've put in with Parts Express -- I've been using the SpeakON series for over 9 years, with nothing less than stellar results, across the whole series, from NL2, to these, their earlier incarnation, the NL4FC, and up in to the NL8 series.The connectors are made to exceedingly tight tolerances using only the best raw materials and workmanship. This is readily noticed each time you use them.The fitment process is also easily carried out; Simply take it apart if it's assembled in the bag, strip your cable jacket to length, strip the inner cores to length, open up terminal screws, insert cable cores and tighten screws using a #2 PosiDriv bit. Re-assemble.In fact, it took longer to write this review than it did to convert a cable over from 1/4" TS to SpeakON.
Date published: 2015-09-06
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
  • 2015-11-30T07:06CST
  • bvseo_cps, prod_bvrr, vn_cps_3.1.6
  • cp_1, bvpage1
  • co_hasreviews, tv_0, tr_35
  • loc_en_US, sid_092-190, PRD, sort_mostRecent
  • clientName_PartsExpressInternational

Product Q&A

Get your questions answered from other customers
who own this product or have experience with it.
If your question requires design or troubleshooting information,
please email  for a prompt reply.
Neutrik NL4FX Speakon SPX Series 4-Pole Cable Connector

Will they easily handle 10 or 12 gauge 4 pole wire?

Asked by: Scrappy
It depends on the wire diameter. As long as the wire you are working with is 7 - 14.5 mm, then it will work.
Answered by: GregT
Date published: 2015-11-27

Can I use 14 awg 4c power cable with the Neutric NL4FX Speakon 4-pole cable connector?

Asked by: nate10
Answered by: MattP
Date published: 2015-09-23

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: 2015-11-06

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: DMSLV
Yes. The NL4FX Connector fits the NL4MP Jack.
Answered by: TomI
Date published: 2014-09-30
  • 2015-11-29T08:19CST
  • bvseo_cps, prod_bvqa, vn_cps_3.1.6
  • cp_1, bvpage1
  • co_hasquestionsanswers, tq_10
  • loc_en_US, sid_092-190, PRD, sort_recentQuestionsFirst
  • clientName_PartsExpressInternational
Get Deals
emailed to you every week.

Be the first to hear about new and exciting products,special pricing and incredible deals!

See This Week's "GET DEALS" Email
Get Sales Flyer
Parts Express
725 Pleasant Valley Dr.Springboro,OH 45066USA

© 1986-2015 Parts Express, All Rights Reserved

Live Chat Software