Seeing as how you are willing to get a HD500, why are you not considering the Helix LT? Its about the price of the stomp + whatever you want to pair with it, and it doesnt have the stomps limitations, and it has a built in expression pedal, has more switches to control everything, and is a very flexible midi controller on its own. I think that if your plan is to get a Stomp and then build a pedalboard around it, the LT is a better choice because you dont really need a pedalboard or any aditional pedals anymore. 
When you mic up an amp, the sound that you record sounds vastly different from the sound that you hear in the room. And usually the online demos sound better than the real deal, because its in the companies best interest to sell as many amps as you can. 

Sadly, if you wanted a hi gain practice amp, you really went for the almost absolute worst one you can get. Even the demos sound bad. Id suggest selling it and getting something better. 
Depends on what you want to do with it. If you want to replicate your actual amps, Kemper is the way to go, and really nothing can beat it. You can literally copy the sound of all of your amps with it. But if you want something flexible with a bunch of different sounding amp models and a butload of effects on tap, id say go for the Helix. Its a breeze to use, sounds just as good as the Kemper, and can do much more when it comes to effects and weird routings. I used to own a Kemper, and i switched to Helix, and im just happier with it. 
Helix all the way. I had the chance to try both out, helix is just way better. 
Well currently i just use the Helix. But before the chain went somewhat like this: Guitar -> boss ns2 -> wah -> digitech bad monkey OD -> Peavey 5150ii, and then in the loop I had Boss Ge7 -> EBS Dyna verb -> Digitech DL-8. It all went trough a 2x12" cab with vintage 30s. 

Id say that all you really need for a good metalcore rhythm sound is a 6505 type amp and an overdrive pedal. Everything else was just used for cleans and leads.
First of all, the Kemper and the Axe (be it axef 2 or 3) beat the bias head hands down. But there is also a VERY large price gap between those. If i were you, id look into the Helix, the price/performance is the best of all, and id argue it sounds just as good as the kemper. 
^i second that. A good modeler is a godsend for people who dont want to lug around heavy tube amps. 
I just use some random Kurzveill monitors that i got years ago. It works fine. 
Ikillintel i know Fortin amps are suposed to be amazing. But building an amp and making an amp sim are two wildly different things. As far as i know Fortin just put its name on the sim, but its made by someone else. 
Quote by Bigbazz
There are a few minor gripes with the Helix if I had to nitpick, the EQ's could be better/more varied (I would love something like a Waves C4 multiband compressor), the Wahs could be better (they don't sound as organic as standalone units) and the tuner could be more responsive in loud environments, I wish it had an acoustic simulator built in (something I've used in the past) and I wish it had a dedicated gated reverb preset/model.. Even still, on the whole the Helix effects setup and quality of the effects available makes it in my opinion the best product on the market, with only a few minor points.

A lot of the effects are so good that standalone products with a specific function might cost 1/4 of the price (of a HX effects) or more and yet are effectively indistinguishable with their copycat preset on the Helix.

Could not agree more with all your points. They did improve the tuner in the last update tho, its A LOT better. The update came out a few days ago, so you should try it out if you havent yet. 
Quote by Bigbazz
I use the Helix pitch-shifter a lot, it's decent up to a 1 tone in either direction and it has decent octave/harmony functionality. I think it suffers in quality a lot when you try to transpose the entire signal (so full pitch shift rather than harmonies) more than 1 full tone, but I think that is kind of inevitable with any pitch shifter including The Drop.  If by pitch-shift he's talking about the Digitech Whammy pedal the full Helix does a decent job but the HX-Effects obviously doesn't have an expression pedal built in so it can't work that job.

In terms of phasers, chorus, delays, reverbs, compresssion and OD pedals etc the HX is amazing, perhaps even unbeatable currently.

I actually really dislike the one on the helix. Its one of the few sour points, even when you transposed it for one or two steps, so i never use it for playing actual songs. The one on the kemper worked much better when i had it. 
If you need a good pitch shifter you need a Digitech Drop pedal or whatever its called. Im actually a huge fan of the HX Effects, but the pitch shifters arent that good. 
Actually any latching 1switch pedal should work. I even hooked up a 2 switch pedal and it worked. And i wired my own as well, and it still worked. Its really the most basic switch you can find. You can even try by just runing two wires into a jack, and shorting the contacts, and see if that will switch the channels. Also test your original footswitch, because maybe something broke in the amp, not in the switch. 
Out of those i personally heard and used the Katana and the Code. The Code was a piece of shit, but the Katana is suprisingly good. Id say go with that. If nothing else, the Katana 50 has a 12" speaker, while the Voxes have a 10" one, and there is a suprisingly big differnece between them.
dthmtl3 yeah, hence the limit to 6 blocks, not the theoretical 32 that you can load in the full Helix. 
dthmtl3 Actually the Stomp is not near-Helix, it is helix quality, since it uses the same models of everything. The only thing thats missing is a bunch of I/O options that the helix has, and the presets are limited to 6 blocks. You can actually transfer presets from the helix to the stomp if you work within those parameters. 
Bigbazz Its the same. There is a slight difference in response because the input levels are different, but it also has a dB meter that shows you if you have your gain setup in the right zone. If you get it right, its indistinguishable from the actual unit. I did the trial for Native before i actually bought the unit, just to see what sounds i can get from it, and once i got the actual pedal, it was the same damn thing. Even the UI for the editor and Native is the same. 
Its pretty resource heavy tho, i dont think i ever had a guitar plugin that took up so much cpu and ram. But it works on my ancient laptop, so i think it shouldnt be to bad on a decent computer nowdays.
Quote by dthmtl3
Not sure if, setting everything else aside, the quality of the sound improves dramatically as you go from AmpliFi to POD HD500 to Helix.

It does actually. The amp models in the helix are vastly superior to the ones in the POD. Not saying that you cant get a great sound out of the pod, but it takes so much more effort, its not even funny, and its beyond what most people are really capabale of. I think that just the sound of it is worth the price increase, but the other stuff makes it more than worth it.
Everyone is going to suggest a different plugin, so you might as well just look up a list of them all online. The thing is, most of the ones out nowdays sound good if you pair them with a good impulse response. So its about picking the one you find the most handy to use and that you think sounds the best. Currently everyone is shitting their pants about the Fortin Suite, you have the Misha Mansoor plugin from joey sturgis, the Mercuriall plugins, BIAS, Amplitube.... There is a lot of them out nowdays. I personally prefer the Helix Native, becuase i also use an actual helix for playing, but that one is a bit on the pricy side (if you intend to pay for them). It does have a 30day trial, so you can see if you really like it. Actually, you should look at as many sims you can find, and download free trials and try them out. If they dont have free trials, well, this is the internet, so everything has a free trial out there somewhere....
erdemalsirt99 Dude, that ENTIRE song was out of tune. And so was the queen song. Thats not just some "fast note arpeggios". 
erdemalsirt99 You are singing out of tune. Teqchnique or no techniqe, thats bad. It doesnt matter what voice type you are, if you cant hit a note. 
erdemalsirt99 your voice is not deep like a traditionly trained baritone singer, because your techniqe is horrible. And honestly dude, you really need some lessons, this simply isnt good. And the autotune actually makes it worse. 
erdemalsirt99 Its because your voice sounds strained and thin when you sing high up, but sounds open and full when you sing in the lower range, at least thats what i can hear from those acapela covers. When you classify voice types, the range doesnt really matter that much, but what does matter, is where your voice sounds "the best". I am a baritone, but i can still hit the tenor C5. It just sounds different than if a tenor sings that high. 
erdemalsirt99 There is some VERY obvious autotune going on there, that just goes wild at sime points, and you clearly didnt really know how the song goes. Its entertaining at least. Anyway, i have no idea what voice type you are from this, probably some sort of baritone. TBH it really doesnt matter much when it comes down to it. . 
What the hell is up with that queen cover  
Quote by Ballio
Don't get me wrong, I'm not anti Helix.
As I said at the start it makes me nervous thinking my entire kit is in this one device, whether it's a valid concern or not.
Yes you could say that about an amp or guitar but how are you going to substitute for a Helix? You can't.

Now I'm thinking about buying that Helix Stomp.

You can substitute with another helix. A full sized helix + the LT or HX stomp cost less than a single good rig. And you can actually have a bunch of cheaper backups like an old pod hd500 or the mooer ge200, or even mooers preamp pedals and radar. Basicly you can get a simple backup that acts as a helix for like 150$ if you are clever. Hard to say that about a tube amp. 
Quote by Bigbazz
Also compared to what I was using before it's simplifying matters, I carry my entire setup on my person (Helix Backpack + Guitar case) as apposed to having a 2x12 combo, pedalboard with 4 leads + patch cables (potential to go wrong) and mic + mic lead to mic the amp up. So I've not only vastly increased the flexibility of my guitar rig but I've also made it easier to carry and much faster to setup, I have no backline because I use inear monitoring (which I was using when I used an amp too).

This, all the way. Nowdays i just lug around my helix case and my guitar. Thats all I need, and i can put all the cables and whatnot in those two cases, so i dont need anything else. If i know ill need a bunch of stuff, i can also bring a small backpack with me. But the ammount of stuff I need just went down so drasticly, its not even funny. Even when i had the Kemper, i still had to lug around the entire rack case with me, and a footswitch, but with the helix its literally 2 items that i have to carry. The entire band went from having to go to a gig with a van and a car to going with just one car. 
Quote by Bigbazz
I don't have a backup at the moment though, at least not one that I take with me. I need to get something really small (like the size of a single stompbox) that I can carry in my Helix case that could save me for a clean and drive sound on the spot, some of my old Digitech stomp boxes might have that functionality.

Ive been thinking about this for a while, and i think either one of those mooer preamps+mooer radar pedal, or maybe the HX stomp that was just released. 
Perverockstar69 If you use snapshots you have zero latency when switching them. You get 8 diffrent snapshots for a preset, i think that can cover any song. For one band i had a preset for each song, and then had snapshots for each section of the song in that preset. There was zero preset switching during songs. 
I own a helix. Its the standard floor model, not the LT, but i did also test drive the LT, and software and sound wise, its the same thing. Its only missing the scribble strips and a few inputs and outputs on the back side. I actually owned a kemper, and i sold it to get the Helix and a 5150. I planed to use the helix as multifx unit with my amp for practice and giging, and as a standalone unit at home, but since then the 5150 is pretty much gathering dust, because the helix is just so good. The interface is very simple to use, you have a bunch of different ways of controlling the thing, there are some great in depth options when you delve into the deeper settings. The switches are configurable in pretty much any way you want it, you can eq different outputs in a different way, you can run multiple instruemnts trough one. The amp models are great, and since you can load up your own IRs you can really get a great sound out of it. That said, even the stock cabs are decent. If you want, you can put any of your pedals in the helix fx loops, and to top it of, all the outputs can be configured to send guitar or line level signal, if you want to connect to rack units or something simlar. The thing seems to be built like a tank as well. 

So far i have used it at home, for recording, for practice and jamming, and live, and it excells in all of those enviroments. I used it into a powered monitors, straight to PA, into amp fx return and with the 4cm where it also switched channels on my amp. It just works, and there is almost no screwing around with trying to make something work. Ive had it for a year now, and its, at least so far, the best piece of gear i ever had, beating Kemper hands down in all areas. 

Now the lt version has some drawbacks, like the lack of scribble strips, only two instead of 4 fx loops, no external amp control, and some other things. I honestly could live without the aditional outputs, but the scribble strips were what really did it for me. If you can do without even all the bells and whisteles that the LT has, line6 just released HX Stomp, which is basicly a Helix in the size of 2 standard boss pedals with only 3 footswitches. Its pretty crazy they managed to squeeze it into such a small package, but apparently it uses the same modeling tech as the bigger brothers, so the sound is still there. 
Just cranck up all the gain knobs you have, and you are good to go!
It would really help if you posted a picture. And you will get better answers in the guitar building subforum, some of those guys really know their stuff. 

Anyways, its probably fixable, but as far as cracks in necks go, you cant really tell how bad it is until you dig in there and get a luthier to estimate how much its going to cost to fix. When I buy used guitars (out of about 15 guitars i had, only 3 were new ones), i never take the ones with mystery cracks. So unless you get a crazy good deal on it, that justifies a potentially high repair cost, i wouldnt do it. 
Yeah, older songs are sometimes a bit sped up or slowed down when they were mixed. Or, before the age of cheap and precise tuners, the musicians would tune by ear, or with some shitty tuner that was like 1/8 of a step off from standard. Or maybe they didnt tune to 440hz. Who knows, but the older the record, the higher the chance of it happening. If i recall correctly, i had the same issues when i played along to For whom the bell tolls when i was starting out. 

Also, if you are a new player, you might be pressing on the strings to hard or maybe you are bending the strings slightly. 
OP, you can get an amazing used amp for such a budget in europe. A full sized, or at least the 50w 5150III head for example. Or you can get a new 6505 of thomann for that price as well. And actually id recommend something from the 5150/6505 family of amps, i think they are perfect for djent. You can also get a bunch of engls in europe for a decent budget, because they are cheaper than in the US i think. Actually around here the used market is saturated with them, and im sure you can snag a Savage or even an Invader, and those are a beast of an amp as well. 

You are also going to need some sort of overdrive and a good noise gate, if you want to get that choppy djent sound. 
jdgreat4 Its really hard to give any good feedback on a fully produced track. Compression, eq and reverb can hide a lot of imperfections in your singing, as well as time alinging and maybe even some autotune. Anyway from what i can gather from this track, you are mumbling. I know this is all the rage in the last years, where annunciation is deliberately bad, and everything sounds mumbled, but I hate it. Also, if your annunciation is bad, im willing to bet other things are of as well, you just cant hear it here because of the production. Anyway, besides that, the only thing i can pick up is that you start a word, and increase in intensity only after you start it, so it sounds kinda like "oooOOOCTopuss in the ssssSSEEEEeeeaaaa". I guess thats a stylistic choice just like the mumbling, but its not really something i like, at least not in such an ammount as you do it here.  
I saw a video just recently, where Cradle of filth show their new live rig, and its literally just 2 mooer pedals, the 5150 preamp and the mooer Radar. They say thats all that the use for live shows nowdays. So yeah, mooer really stepped up the game with this pedals. Im probably going to get something like that as a backup for my Helix.
I had a JCA50 head a few years ago, and i like it. The fx loop is kinda weird since it wants to take line level signal for some weird reason, but most modern pedals can work in it just fine. Also you dont really have a clean channel, its always at least slightly crunchy. Didnt really bother me, but if you want to play a lot of cleans, look elsewhere. The hi gain channel worked fine for metal and hard rock. I mean, its nothing spectacular, but pretty good, to the point where id consider buying another of those heads as a backup or for any live playing actually, if i needed it. The only gripe i had with it was that it was ugly as sin
dude, cmon, just slap new ones on there. 
Dude, you can get a used Engl Powerball or even a Savage for that money if you are a bit lucky. You really should check out the used market, there are some crazy deals that you can get in europe. 
Depends on what you want to do really. I have been a vocalist/guitarist, just a vocalist and just a guitarist in bands. I have to say that when i was just a vocalist, yeah, it was easier to concentrate just on the vocals. And yes, i was able to jump around more than with a guitar, but thats not necesarily a good thing. And its easier to animate people when you have at least one free hand to do it with. But to be honest, it wasnt nearly as much fun. And it gets kinda awkward during the solos. I also think that bands with a singer/guitarist just look better on stage and have better stage presence overall. The jumping singer just bothers me most of the time (there are exceptions of course). And another thing, if you dont play guitar, you need to get another person to do it, and i always try to keep the number of people in a band down to a minimum, beucase its already hard enough to find 3 people you can work with. So yeah, play guitar as well. 
Quote by maddnotez
So true, one tone from each amp and you have to enjoy THEIR settings

I do have a Bogner Rev 2 which sounds very similar to that clip I posted but I was thinking of selling that and copping the tones from the Kemper. TBH That would be the only way I could sell that amp and be happy about it.

I did the same when I sold my ENGL and got the kemper. I just got the profiles from the same engl. But it turned out it was still way more limiting than having the actual amp.