Newbie help

[coldwar]

Hi all,

 

Upon advice from this forum I have purchased a QSC RMX 2450. I have a pair of peavey eurosys 3 speakers.

I have tried plugging them in with the cables I had before which are just 1/4in jacks but that didn't seem to work.

My understanding is that the amplifier has an input side and output side. So I would need to plug the speakers on the output side in the speakon sockets.

Hopefully im correct so far. My next problem is im not sure where to plug the mixer in and which cables I need. Im guessing its on the input side of the amp in which case I have a choice of XLR, 1/4in jacks and a barrier strip.

The mixer also an XLR socket but it mostly has the red and white plugs. There is also 1/4in sockets but it says microphone under them.

I really just need to know which cables I need to buy so I can get the system running and I can figure out all the calibrations and settings later. Sorry if this is all very basic and boring.

[pete10uk]

Hi all,

 

Upon advice from this forum I have purchased a QSC RMX 2450. I have a pair of peavey eurosys 3 speakers.

I have tried plugging them in with the cables I had before which are just 1/4in jacks but that didn't seem to work.

My understanding is that the amplifier has an input side and output side. So I would need to plug the speakers on the output side in the speakon sockets.

Hopefully im correct so far. My next problem is im not sure where to plug the mixer in and which cables I need. Im guessing its on the input side of the amp in which case I have a choice of XLR, 1/4in jacks and a barrier strip.

The mixer also an XLR socket but it mostly has the red and white plugs. There is also 1/4in sockets but it says microphone under them.

I really just need to know which cables I need to buy so I can get the system running and I can figure out all the calibrations and settings later. Sorry if this is all very basic and boring.

 

You seem to be on the right track with the amplifier, what is the mixer and we can then advise you on the cabling required?

[gordontech]

..

 

 

[laolu]

Thanks to speakon, at least the connection amp out –> (passive) speaker in can not be confused. 15, 20 years ago this was not yet so, and some microphone or headphone died a quick death when plugged into an amp out, which often was 1/4” TRS back then.

 

So, yes, so far you’re on the right track, amp and speaker are connected correctly.

 

My guess is that your mixer is maybe a DJ mixer? They got plenty of “red and white” (RCA) connections. The single XLR your mixer has, is it male or female?

 

If you could post the brand name and model number of your mixer, that would be helpful.

 

 

[coldwar]

thanks so much already guys, I can tell im going to get somewhere now.

 

the mixer is a Denon DN-D4000

 

both the mixer and the amp have 2 XLR sockets. The amp has 2 male XLRs and the mixer 2 Female ones.

 

Again thanks so much for the help but its time for sleep now @.@

[MarkPAman]

Hi

 

Can you check the model of your mixer again, as the DN-D4000 seems to be a twin CD player, not a mixer.

 

But, I think you've got your male & female XLRs muddled up. Your amp has 2 female XLRs on it (three holes).

 

So, if the mixer actually has male XLRs (three pins) then it's a very good bet that plugging them into the female XLRs on your amp will do the job for you.

 

:)

[coldwar]

my mistake the mixer is a gemini ps 900i.

 

So now I have 1 speakon to 1/4in cable and one XLR TO XLR cable. do I have to have both of each to test the system? I was hoping with 1 of each I could maybe get one speaker working just to check that everything is a go then ill buy all the cable I need online.

[paulears]

mixer XLR out to amp XLR in, Speakon out of amp into speaker, turn both gains on the amp down. Power up amp, on Gemini mixer adjust faders to get some output level on the meters, turn amp up - noise comes out. Should be that simple.

[coldwar]

hey guys, thanks so much for all the help. everything seems to be running just fine. I think I got all the little settings correct.

 

I ended up just chopping an RCA connection and screwing them into the barrier strip. Its currently in parallel because im shy one speakon cable but ill soon get that sorted.

 

Again guys thanks so much for all the help. If theres anything else you think ive missed please let me know.

[lightsource]

Hi all,

 

Upon advice from this forum I have purchased a QSC RMX 2450. I have a pair of Peavey eurosys 3 speakers.

 

Bear in mind that your speakers are only rated at 150w RMS at 8 Ohms, and the RMX 2450 is capable of delivering 500W into that impedence.

 

Please remember that your amplifier is rated at least 3 times what your speakers can handle Set your Amplifier to full, and allow your DJ console to go into the red :( your speakers will be history.

 

That's a seriously bad speaker / Amplifier choice for DJ use, which I assume it's being used for.

 

And 20.2KG for a single amp. If I used those, my AmpRack would be nearly 100Kg.

[coldwar]

Hi all,

 

Upon advice from this forum I have purchased a QSC RMX 2450. I have a pair of Peavey eurosys 3 speakers.

 

Bear in mind that your speakers are only rated at 150w RMS at 8 Ohms, and the RMX 2450 is capable of delivering 500W into that impedence.

 

Please remember that your amplifier is rated at least 3 times what your speakers can handle Set your Amplifier to full, and allow your DJ console to go into the red :( your speakers will be history.

 

That's a seriously bad speaker / Amplifier choice for DJ use, which I assume it's being used for.

 

And 20.2KG for a single amp. If I used those, my AmpRack would be nearly 100Kg.

 

Thank you so much for the tip. So when the speakers say that they are 300w, that means for the pair of them? The speakers are quite large and we have a slight problem of bass running up the building and so possible sound complaints. Would I be better off buying a higher wattage, smaller and more than just 2 speakers? With the goal in mind of spreading the music out more evenly through the venue ( a medium sized underground venue for about 80 people which is long and narrow.)