I can give them a call and get it for you. Yes, SMD has ushered in the day of "just replace the board." In 15 years, I'll only be able to fix tube amps, with big parts. So I am splitting tracks on a breadboard with a scalpel in order to solder that thing in, and my eyesight is not actually getting any better at my age. Right now I am doing a phantom power switch using matched P-channel MOSFETs and basically the only way you get something of that kind is an SMD chip.
I am not actually interested in the truly recent stuff since it is both out of my paygrade and out of my area of expertise (and repairability also goes down with novelty). I'll try that, never mind the time zone differences and my accent. I think they are still trying to patent some of those circuits, and will hold on to them until the patents are granted. They will send you any schematic, except the truly recent stuff. I give them a call and they usually email me with a. It's astonishing what a difference in maintainability access to the schematics makes, so Peavey is to be lauded for being comparatively generous handing them to people who need them, even if the process ends up being a bit hit and miss sometimes. The KB2 schematics are somewhat related to the KB/A50 schematics I currently need (similar preamps and similar power biamp), but part identifiers are all different and so is the layout. I haven't figured out what would make the difference. I've had mixed success with asking Peavey customer service (the mail address) for schematics: sometimes I get an answer with the schematics (if I do, it tended to be about a week after asking), sometimes the mail appears to drop through the floor. Well, I found the KB2 schematic "somewhere on the Internet"™. It was taking multiple calls during the pandemic, but they should be catching up by now.
Peavy probably makes one, and Behringer makes an inexpensive one.You can call Peavey and get the schematic. You can also get Guitar-USB interfaces, so you can record the guitar directly on the computer (with Audacity or other recording software), if you'd rather do that than use the iPhone. If you don't want to edit, you may not need Audacity. Then, you can use Audacity for editing, if you wish. Then you should be able to transfer the audio file to your computer digitally via USB. I assume you can record to your iPhone with the peavy gizmo. There are a couple of other options, depending on what you are trying to do. You obviously don't need Audacity to play a sound on your computer, or to hear the sound coming into the computer's mic input (out of the laptop speakers, or the laptop's headphone-out). but no signal from the guitar comes out of Audacity?You're getting sound from where? From the computer, or from the iPhone? Are these "recordings' on yoru iPhone, or on your computer? I can connect everything and get sound from recordings I've done. A headphone-out to line-in on a desktop computer is a better match. The headphone-out from your iPhone to the mic-in on your laptop should "work", but the mic input is usually too sensitive for a headphone-level signal and you might get distortion.
You just need to configure the Windows audio control panel properly.
And, you don't need any special software to hear the sound coming into the computer's mic input (out of the laptop speakers, or the laptop's headphone-out). You obviously don't need Audacity to play a sound on your computer. What are you really trying to do? Do you want to record on your iPhone, or the computer? but no signal from the guitar comes out of Audacity?You're getting sound from where? From the computer, or from the iPhone? Are these "recordings" on your iPhone, or on your computer?