I have 2 peavey sp 5 and a pwavey 2600 amp . i wanna know can i hook a peavey 118 passive sub to one of the sp5 and how would it sound?

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are you running 2 speakers in stereo?????

When asking questions please give as much detail as possible, t LEAST give the model or part numbers of the items you are asking about and anything else you will be using with them. Without this information it is impossible to answer more than general questions. However I will attempt to give an answer which could point you in the right direction below.

As you don't say which 118 and 215 you have it is impossible to give an absolute answer. Some 118s have an internal low pass crossover with two inputs in parallel, in this case you can take a connection from the amp to the sub and from the sub to the 215. Again some 215s have a high as well as a full range input so you MAY be able to use this to avoid driving full range into the 215. Some 118s have a high pass as well as a low pass in which case just connect the high out to the fullrange in on the 215. You could also possibly split the amp to use one side as a sub driver and the other for the mid/tops if the amp has a crossover.

You may also find that the wiring on the speakons on the tops needs to be different according to how you are going to use them (2+/- instead of 1+/-)

You will also need to know what impedance your amp is happy to go down to as in some combinations depending on which model 118/215s you have you could end up presenting a 2ohm load.

Check the crossover network for cracked solder joints, specially pay attention to the female1/4 jacks as they are very tricky since they are switches also, you might be surprised...

Crossover 1/4 female connector issue and/or tweeter diaphragm got fried...

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

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.

Just a note regarding connecting: USE BALANCED lines everywhere you can. Use either XLR if available or TRS type cables. This will reduce noise pickup.

Another hint: For SAFETY of your equipment run ANY interconnected devices from the SAME power source. DO NOT say power the amps from one place and your other equipment from a different outlet. Afford a power distribution system that feeds from a single receptacle or nearby receptacles near a common electrical panel. This will ALSO help avoid noise as well as the hazards to your equipment from ground loops.

I would recommend using a separate active crossover such as the Peavey 23XO and a separate amp for your subs.