Wirings connections from mixer to equalizer to crossover to power amp to speaker

An external equalizer will not help this at all. The problem is likely within the amp (feeding the main speakers), the connections from the board to the amp, or the speakers themselves. In other words, the answer would be "NO." Best of luck!

I'd need to know what mixer you have, to know if there is a [line out] connection socket and an [internal amp in] connection socket.

"each with own poweramp" I presume means the ep1500's and NOT that the speakers are active (ie containing amps)

***If any of your speakers are active, ask the question again, with more detail.***

So if all your speakers are passive, I offer the following.

I assume there is [effect send] and [effect return] on the mixer

effect send>quadraverb>effect return

mixer line out > eq > compressor > sonic maximizer > crossover

sub output of crossover> amp > sub
high output of crossover to mixer's internal amp input
mixer's speaker output > main speakers

monitor output > other side of eq (>other side of compressor if desired, but use sparingly ) > other side of sonic max if it is true stereo , otherwise skip > amp > monitors

If your mixer doesn't have an input to its internal amp, we are "back to the drawing board"
With questions like this it pays to give as much detail as possible; model and make of each component etc
I have done my best with the the info you have provided.
Don't feed amp outputs into powered speakers

This makes little sense... these are bi-amped speakers meaning the crossover is an electronic LOW LEVEL filter network. You can send LINE LEVEL signals to these (never the output of a power amplifier) and not damage the crossover electronics. You would normally connect the balanced line-level output of a mixer into these.

If you have connected a power amp into this by mistake, you likely blew the input circuit. You will have to have the circuitry replaced.

Very important is to connect ALL interconnected equipment to the same power source or receptacle. Powering speakers from one end of a venue and the mixer from the other end wall receptacles is a good way to blow circuitry due to ground bounce in buildings.

Give us more information of how you connected this AND also the symptoms... unless you are into electronics, self diagnosis of the problem may lead you astray as well as the technicians who fix it.

Generally speaking you should only send low frequencies to subs. The highs, while lower in power than the lows, will over time harm the voice coils. The ideal way to do this is to use an external crossover netween the main output and the amp input with the higher range going to a general set of speakers. Send the lows through the second channel of the amp and then to the subs.

In short, while not recommended, yes you can hook them up in parallel.

Dan

first, you will need a passive crossover, i do not believe that the mono out of the mixer has a crossover., if the amp does not have a crossover. you could use the "mono" output, and split the signal, with an adapter, to both channels of the crossover, then run both of the low outs to the 2 channels of the amp. or, you could hook the crossover to the main laft and right outputs of the board. send the 2 low outs, left and right, to the subs' amp, and send the two high outs, left and right, to the main speakers' amp.

In case you don't have one, here is a link to the manual:http://www.peavey.com/assets/literature/manuals/80300573.pdf I don't know if you are using a separate crossover between the mixer and the amp but here is the simplest explanation.I just reread your question and I don't even know whether you have a Peavey amp. Run proper cables from the main output of your mixer to the main inputs of your power amp.They will be 1/4"shielded cables or Balanced XLR cables. Do not use unshielded speaker cables to hook the mixer and the amp together.Run speaker cables from the speaker outputs of the amp to the input jacks of your speakers.Make sure the impedance of your speaker cabinets equals or exceeds the impedance rating marked on your amp. Here is the link to the newer model PV2600 manual:http://www.sweetwater.com/store/media/pv2600_doc_manual.pdf Don't use Speakon cables unless your speaker cabinets are equipped with Speakon input jacks. Banana plugs aren't as solid a connection as the binding posts are.

Here is a link to the manual:http://www.peavey.com/assets/literature/manuals/00513220_7.pdf I didn't look at the manual for the crossover but this is probably the way I would do it. Look at page 13 in the manual : Come out of the Main out (31 in the diagram) into the main in of your crossover. Go out of your crossover Hi and Mid out setting back into Power amp In 1 (labelled 32 in the diagram). Hook your speakers that you normally use to the output jacks on the back of the Peavey. Make sure you match the output impedances. Go out of your crossover low output into the Pyle power amp and out of the Pyle into your subs. Make sure the impedance ratings of all your speakers match the output impedances of your amps. You will only be running in Mono mode as that is the signal output of the Peavey mixer. You can run faux stereo by using the Main monitor Out as 1/2 the pair and the Main Out as the other 1/2 to both channels of the crossover but you won't be getting a true stereo pan mode.

Troubleshooting is always a "process of elimination." Have you tried hooking up your Peavey powered mixer to another set of speakers? How about connecting the speakers to another audio system? Your term "very little sound" could mean audio input problems, mixer/amp settings or failure and possibly speaker damage (internal passive crossovers). Please be more specific.

Better way... Connect the main speakers via the Speakons and then put a Power Subwoofer to one of the Monitor connections IF you are not using both stage monitors. If you need to kill the lows to the mains, use the EQ in the PMP-3000.

Use the EQ that is USUALLY on the subwoofer to kill the highs to the sub.

Lot less cables and hardware.

REMEMBER for equipment safety, power ALL interconnected equipment from the same source be it a receptacle or power distribution system.

Powering parts of a system from receptacles strewn around a room is asking for trouble of ground loops and ground faults.

Use the stereo master outs from the DJM into the A and B Inputs of the EQ (you'll need 2 phono to Jack or 2 phono to XLR cables) then from the A and B Outputs of the EQ to the power amp/ speakers, etc (you'll need jack or XLR cables depending on what is powereing your speakers)