#1
Hey, I'm not sure if this is the right location to post this but anyways.

I updated my Ibanez with some new humbuckers (Artec pickups) but i didn't exchange the output jack neither the volume and tone pots.

My problem is this: the sound is great in clean tones in crunch tones is cool too but when it comes to hi gain (the type I use more) the output is a bit weak.
The volume is not weak, the gain is weak.

No, it isn't a cable switched, I have certified that that isn't the cause. No, the humbuckers aren't weak because my friend has a pair of the same humbuckers and this doesn't happen to him (btw, he helped me wiring the humbuckers).

The problem that I face most of the time is that whenever I use my multi effect pedal I have to put the gain all the way up to achieve a decent distortion (I like a saturated one, kinda like djent type of thing...). And then, when I use my other guitar, a Schecter Omen 6, I have to put the gain on the middle and even so it is to saturated gain.

My question is can this problem rooted on the volume pots and output jack?
#2
Sounds like a bad solder joint or partial bleed to ground.

How is the pickup height?
Guitars:
Jackson Kelly KE3 - MIJ (Distortion/Jazz)
Jackson DKMGT Dinky (EMG 81/85)
ESP E-II Eclipse Custom (JB/'59)
ESP LTD EC-1001FR (EMG 81/60)
Fender MIM Strat

Amps:
Mesa/Boogie Dual Rectifier Roadster 212
Laney IronHeart IRT-Studio
Peavey Vypyr 30
Peavey ReValver Amp Sims
TOOOO many T.C. Electronic Pedals. . .