#1
Recently purchased a used Mesa Boogie 2x12 Rectifier Cab off of Reverb. Paid $450 including shipping for a decent condition cab, not a steal but I'm content.

I'm running a Jet City JCA20H through it, and can get some okay tones out of it but nothing too special. I'd heard all about the quality and extra low end thump that the Rectifier Series cabs can provide, but it seemed like what I was really getting was a lot of extra muddiness. I fiddled with the settings a little to clear it up a bit, but I'm looking for some tone tweaking tips.

From the information I've been given, the cab is loaded with a pair of V30's. Would lowering the mids, boosting the bass, and adding treble to less than ear piercing highs clear this thing up?

I'm shooting for a Metallica - Seek and Destroy type of tone.

Thanks!
Guitars:
'13 MIM Fender Strat - '05 Epi G-400
Amps:
Fender HRD - VHT Special 6 Ultra -
Jet City JCA20H - Mesa Rectifier 2x12
Pedulz:
Slash Wah - OCD v1.7 - Red Llama MKII -
Big Muff Pi - Carbon Copy - Phase 90 - Ditto Looper
#3
I did try throwing my OCD in front, strictly as a boost. It did help a little bit with the tone, almost to what I am looking for
Guitars:
'13 MIM Fender Strat - '05 Epi G-400
Amps:
Fender HRD - VHT Special 6 Ultra -
Jet City JCA20H - Mesa Rectifier 2x12
Pedulz:
Slash Wah - OCD v1.7 - Red Llama MKII -
Big Muff Pi - Carbon Copy - Phase 90 - Ditto Looper
#4
Try getting it up off the ground before you spend any money. Or if you can, try it tipped back against the wall so the speakers are angled up at you a bit more. Sometimes that will surprise you on how much it increases clarity and bite -- because with something like a Rectifier 212 cab, when it's down on the floor you're mostly going to hear the lower frequencies because the sound is being projected at your legs.

After that, try some EQing. To me, too much midrange does tend to sound muddy and inarticulate. You still need mids, but don't overdo it. Your cab has V 30s which blast mids for days -- it's possible that it's now got a lot more mids than you're used to. Try backing them off a bit. Beware of boosting bass too much though. I always set mine to where it starts to sound a bit too loose/boomy on palm mutes and then back it off a number on the dial. Set highs to taste.

If you care to spend the money, a good EQ pedal in the loop is very useful in getting your rig optimized. My MXR 10-band has been worth every penny, and will get moved to whatever amps I buy in the future.
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Last edited by KailM at Jul 27, 2015,
#5
KailM, thank you very much for your reply. I may try tipping it back to project more at earshot. Standing further from the amp (with the same settings) did have a more ear pleasing tone.

Since I just got it, I wasn't planning on spending any money right away! I haven't had nearly enough time to mess around with all my settings. I'll give all your advice a shot! Thanks!
Guitars:
'13 MIM Fender Strat - '05 Epi G-400
Amps:
Fender HRD - VHT Special 6 Ultra -
Jet City JCA20H - Mesa Rectifier 2x12
Pedulz:
Slash Wah - OCD v1.7 - Red Llama MKII -
Big Muff Pi - Carbon Copy - Phase 90 - Ditto Looper
#6
BTW Seek & Destroy is more drier old school sound, so might want to back up on gain abd crank the power level on the amp. They're definitely driving the power stage hard on these amps that's why they have that dry bark sound on it. Think AC/DC crunch to start with on the amp and then just a touch more gain from the OCD.
#7
i haven't owned a jet city in a long time, but i remember it (JCA50h) really didn't pair well with my 4x12: rec cab. it just didn't work well for some reason. it liked K100's more than V30's (speaking of celestion only, not familiar with other brands).
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#8
Amp stands are awesome. Huge tone improvement and it's $40 for a fancy one - http://www.guitarcenter.com/ProLine-AMP-STAND-107420127-i2709089.gc?country=us&currency=usd&isfullsite=1
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#9
Yea- you need your ears to be right in line with the speaker cone. Guitar is ******edly directional in sound. When I practice with my 412 cabs, I literally sit down on the ground in front of the cab about 5 feet away. It sounds amazing (just dont blast the volume though or you will kill yourself lol). People dont realize how big of a difference it makes to be right in line with your speaker. All of your favorite guitar tones were recorded with a microphone right in front of the speaker; thats where your ear needs to be.
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