Hello everyone I was checking the internet for a possible fix for a problem I have, and ran across some smart people here so I was hoping I may get an answer. I have a time sensitive problem. I have a line 6 spider IV 120, the power amp died and the headphone out has not been working for awhile. However  I can still write patches so the effects side seems to be fine. My band is playing this weekend and I have alot of fairly complex patches wrote as we are a cover band that plays alot of different types of music. I really need my amp this weekend. I have a nice vox amp that sounds great, what I am hoping is if its possible to add an effects loop, send-recieve jacks for the effects section of the line 6 to run to the vox so I can use the effects of the line 6 and power of the vox or, disconnect the power amp section of the line six and where the signal leaves the effects to go to the line 6's power amp section disconnect it and soldier a 1/4 jack as an effects out to run the effects to the vox amp's input. So basically I need the effects of the line 6 togo to the vox amp. This model does not have any I/O's other than an mp3 input that works and the headphone out that does not work. I do know enough to do this work if I have a layout or discription of what needs to be done, I just dont have the knowledge to figure out the signal path :-). Thankyou all that offer help as this is a very important job for me and my band and money is so tight atm I cannot buy a new effects pedal. Thanks again
                                                                John Dullebawn