So you're saying that this
https://www.guitarcenter.com/Vox/AC15CH-Custom-15W-Tube-Guitar-Amp-Head.gc
and this
https://www.guitarcenter.com/Orange-Amplifiers/PPC-Series-PPC212OB-120W-2x12-Open-Back-Guitar-Speaker-Cab.gc
will get me the tone I'm after?
and no Iw as not ever saying that... iw as suggestion a lower gain 50 watt, EL34 or 6L6 head might get it ;-) but turned up... I love the vox thing but its not THAT metal. The big difference between the EL84 Jet City 22H and say a terror series or even an ac15 is nto so much the preamp (we're looking at simialr cathode follower absed tonestacks following a handful of gains tages, all bassman descendents more or less, even the top boosted vox preamp is sort of like that) but the POWER SECTION. All the terrors are, like the ac15/30 (not to mention the classic marshall 18 watt, 20 watt elad and bass, watkins dominator, etc, are cathode baised (what many companies call class A even though tis not really... el84s lend themselves to this bias scheme mroe then any other power tube). The voxes and msot of the terrors also have no engative feedback. pwoer amp distortion slides in gracefully ina very brian may sense. There's a lot of comrpession, not as much percussiveness and the pweor amp's frequency repsonse will favor the midrange the louder you play... the 22H runs the same pair of tubes in fixed bais like a alrger amp. A more modern arrangement. now the cathode bais scheme is self biasing. No ened to go to a tech when you ened new tubes... and it has a sound and its a great sound. I LOVE it. But its a vitnage sound... small tweed amps, voxes, supros. Change the preamp all you want and you still have a small cathode baised pwoeramp with a gain banger stapled on teh front... as you turn up the pwor amp wille xhibit those cathode biased sonic traits. If the pwor amp ahs no engative feedback it will sound loose. now one of the options on the triple rec is 'raw mode' which elimiantes the corrective negative feedback, but tis just oen voicing option on the amp. The Jet city is going to use those smae small pwoer pentodes in a totally different way with a large amount of corrective engative feedback for a tighter response and a twinge more ehadroom and the fixed bias will expand the headroom and lows even further as well as changing the distortion character to include more odd order harmonics like a amrahall as well to have a more abrupt onset of distortion. I could explain more, but most high gain amps prior to Orange upping the gain on the tiny terror? Fixed bias pwoeramps with a good amount of negative feedback (presence and depth/resonance controls effect the way thise corrective feedback from the output tranformer effects the extreme highs and lows)...
another thing to think about with the terros is that the original TT is pretty gainy ebcause its designed to clip the pwoer section. There are 2 cascaded triodes from V1 that share a dual ganged gain pot so that they both turn up together giving equal gain rather then everything being bunched up in the firsts tage like msot high gain amps, a cool idea, but they're no generating much dirt, the dirt comes from the PHASE INVERTER that splits the signal for the push-pull pair of power tubes. The master control is the same post-phase-inverter variety that orange overdrive ehads of the 70s used. its been used by matchless and vox. it was a favorite mod for marshall JCM800s when iw as a kid. That original terror soudsn vicious because of this arrangement. The toen control is also in the pwoer amp right in line with the amster. its basically a the vox cut control which is a frequency specific master volume for the treble. that's it. This really simple arrangement really works on the terror. Those type of vox-based aps do really well with this sort of gain structure. They really messed with the formula for the Dark, Hinds OR15 etc. Iw as still reptty imrepssed with the OR15 overall, but it defintiely is spongier and softer then the Jet City and they are VERY similar ind esign until the poweramp. I've used both amps ins tores and while Iw ould say that for myself I rpeferrred the Orange, for metal? I think the Jet City will own most of the time.
PS: prepare to redefine loud amps... 15 to 20 high gain tube watts is going to take your head off compared to that fender modeler. Blood will come out of your rectum or something... if you think 15 watts will dial it down for apartment use think again. 15 watts is loud as fuck in a small space. its not less than half as loud as 50 watts ;-) its about half as loud as 100.