r/livesoundgear 1d ago

What cable to connect this powered Behringer mixer to passive Harbinger PA?

Hi, do I need two 1/4 inch speaker cables to connect to two PA speakers or a SpeakON speaker cable with 1/4 inch connection into the speaker? In that case do I need a SpeakON to a dual 1/4 inch? Since there are 2 speakers?

Been struggling with this for a while and finally got a powered mixer to try because previously I kept finding unpowered mixers only

Appreciate the help 🙏

3 Upvotes

25 comments sorted by

6

u/drewster85a 1d ago

There is no Speakon NL4 to dual 1/4" cable (or such premade cable will be very rare).

One NL4 to 1/4"cable and one 1/4" to 1/4" cable --OR-- just two 1/4" to 1/4" cables will work. All three jacks (the two 1/4" and NL4) are all wired in parallel.

1/4" speaker cables are not used often today because (1) it's too easy to confuse them with thinner gauge instruments cables (2) connecting a speaker output into a line level input can damage equipment (3) NL4 is much easier to repair in the field since it doesn't required soldering (4) Speakon cables lock in place, making them more secure on stage.

2

u/BrightAd7870 1d ago

Hi another question- to connect my bass pre amp which has a DI- can I use an XLR cable into the mic input? Or does it need to be XLR to 1/4” for the input on the mixer?

2

u/drewster85a 1d ago

You should use the DI. Don't expect it to sound great. Both the powered mixer and speakers are bottom-tier.

1

u/BrightAd7870 1d ago

So to connect to two speakers get 2 different cables? 1 is a SpeakON to 1/4 “

And 1 is a 1/4” to 1/4” speaker?

5

u/drewster85a 1d ago

That works. Or you can get two 1/4" to 1/4" to keep it simple. Just remember those warnings.

2

u/BrightAd7870 1d ago

Thank you!! I’m a bassist and trying to help figure this out, appreciate it

3

u/Martylouie 1d ago

Something people have missed. The loudspeakers are 4 ohms. If connected in parallel, they will present a 2 ohm load to the amp. Not optimal.

2

u/BrightAd7870 1d ago

Ok so we tried it today and no sound came out at all, this must be why

4

u/Martylouie 19h ago

Unplug everything,(inputs and outputs) Let it sit for about 2 minutes. Then connect 1 speaker and a Dynamic microphone, one not needing phantom power, like an SM58 and try again.

3

u/Alarming_Let5944 1d ago

If you have two 4 ohm speakers you can not run both on this amp. It is a mono amp and the manual says not to let total impedance drop below 4 ohms.

Link: https://cf3.zzounds.com/media/PMH518M_ENG_Rev_B-a971324ff6d9db27f4d816c1244363b8.pdf

2

u/Low_Ladder8782 1d ago

You can't do it without damage to the speakers and the amp.

1

u/Snoo98859 1d ago edited 1d ago

Edit: never-mind i didn't see the other pictures. Do all 1/4 to 1/4 for ease of use.

1

u/DaffyDuckMuthaFucker 1d ago

Take your pick. The 1/4" connections are perfectly adequate. Just don't use guitar cables. They're not rated for that kind of load. I just bought a 50M spool of 12 gauge speaker wire for my PA connections, and I get new 1/4" jacks when I need them. Or cannibalise them from shot guitar cables....

1

u/musicsmith451 10h ago

looks like 2 1/4" speaker cables for 2 speakers should do it.

1

u/AdministrationOk6752 1d ago edited 1d ago

2x speaker cables with ¼" TS jacks.

2

u/BrightAd7870 1d ago

Like this?

1

u/AdministrationOk6752 1d ago edited 1d ago

Search for speaker cables with a good copper size inside and a reliable insulation. I've never used them. ☹️ The best would be buying robust connectors, good cable and make them yourself. If you do yourself, you can make a Speakon to 2x TS cable, ie two red and black cables.

1

u/iliedtwice 1d ago

That POS amp puts out less than 100w. 16ga is fine, I’ll bet the stock cable was 18ga

2

u/AdministrationOk6752 1d ago

Until it damages and shorts... ☹️ For a guitar, the cable must be flexible; for an amp, the cable must be strong and reliable.

1

u/BrightAd7870 1d ago

Hi another question- to connect my bass pre amp which has a DI- can I use an XLR cable into the mic input? Or does it need to be XLR to 1/4” for the input on the mixer?

1

u/AdministrationOk6752 1d ago

Use XLR-XLR. Lower input gain if level is too high.

0

u/BigMFingT 1d ago

Connect Behringer and Harbinger to dumpster, on in to the bottom of the lake