First time poster.
I have an Orange dark terror amp head that I use with a rockcrusher recording load box/attenuator/cabinet emulator to connect to the Helix. I've just moved from a flat with three floors of neighbours above me to a house with a spacious attic room that has become my home studio. I was operating a silent recording setup in the flat but I now want to start using some form of speaker. I'm leaning towards a FRFR speaker (specifically this http://www.andertons.co.uk/speaker-cabinets/pid35447/cid690/laney-iron-heart-irtx-powered-guitar-expansion-cab.asp ) because I figure I might be able to use it with my roland TD30k drumkit as well (although that isn't a priority.) I have enough to buy one speaker but if needed I may invest in two at some point in the future. I mainly want to know whether it's possible to generate feedback from the helix amp and cab models and/or routing the orange head and rockcrusher through the Helix and using a FRFR speaker. I ask because I saw this video of a Helix and cabinet demo https://www.youtube.com/watch?v=1IuX5L8DjtM.
The guy definitely seems to be getting some feedback together and having been recording silently for the last 3 years I want to start squealing and howling again.
I have two questions as I've never used a FRFR speaker before. I connect the rockcrusher to the helix and use the orange head as an insert block separate from any Helix amp and cab models and FX, sometimes in a mono serial routing and sometimes in a stereo parallel routing as two different amp and cab emulations panned left and right, and sent from the XLR outs direct to my mixer. As such having the ability to connect a stereo signal to the FRFR speaker is important to me but not necessarily outputting a stereo image to my ears (if that makes sense) ie a left and right FRFR speaker. So could I send a stereo signal from the Helix 1/4 inch outs to the stereo FX loop on the FRFR? I don't forsee using the FRFR in any part of the recording as yet (mainly due to not quite understanding how or why I would in preferance to the way I record at the moment eg using the two Helix XLR outs to connect to two channels on my mixer) and just using the speaker for monitoring the helix. Does that mean I have to complete the FX loop ie send a stereo signal back to the helix from the FRFR? I mean as I understand it feedback is the phenomenon of soundwaves from the speaker vibrating the guitar strings and being picked up by the guitar pickups, generating noise through the amp and manifesting as soundwaves from the speaker and then repeating that sequence over and over.
2nd question: is it physically possible to generate feedback using a FRFR speaker and will it damage any of the components in my theoritical rig of guitar > Helix > Orange amp > Rockcrusher > Helix > FRFR speaker and then using the Helix XLR outs to send to my mixer.
Apologies if any of these questions seem simple or strange.