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Mesa Boogie Out of Production Demo Express 5:50 5/50W 1x12 Tube Guitar Combo Amp

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The 1x12 Mesa Boogie Express 5:50 combo amp gives you true all-tube power in a big-sounding little amp. This 50W model features 4 inspiring modes from 2 opposite tonal personalities spread across 2 fu... Click To Read More About This Product

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The 1x12 Mesa Boogie Express 5:50 combo amp gives you true all-tube power in a big-sounding little amp. This 50W model features 4 inspiring modes from 2 opposite tonal personalities spread across 2 fully independent channels. If Dr. Jeckyll and Mr. Hyde had to share one platform, this would be it.

For the traditionalists, select the Clean and Blues for your 2 footswitchable sounds. Or, if you're addicted to Gain, choose Crunch and Burn. Then stand back as the well-mannered soul of Dr. Jeckyll morphs into the maniacal Mr. Hyde, hardcore beast. Most important is the classic authenticity of all these iconic tones. No matter what your stylistic destination, the Mesa Boogie Express will take you there”fast.

Each channel on the Express 5:50 amp is equipped with its own Contour depth control for added shaping that's both assignable and footswitchable. Used subtly, Contour adds a halo of depth and chime to gleaming clean sounds. Higher Contour settings, especially in Crunch and Burn, take you into Recto turf”tight, huge and menacing.

Mode Switches

The 5:50's 2 incredible channels and 4 fully evolved modes give you a boarding pass to all the classic guitar styles. The pristine, blooming Clean and tight, grinding Crunch cover the rhythm territories in Channel 1 while Channel 2 roams the wide open spaces of soloing with howling Blues and soaring Burn modes.

Contour Controls

Both channels feature assignable, footswitchable Contour controls that pack the sonic power of a multi-band EQ into 1 simple control. Blend this dynamic, bouncy circuit with the musically rich Tone controls for a sound far bigger than you've ever heard from a combo

External Switch Jacks

Switch "tracks" remotely with the Mesa Boogie Express's External Switch jacks where Channels, Reverb, and the Contour controls can be patched to an external master switching system for remote access. The transparent series Effects Loop handles the interface to all outboard processing.

Patented Duo-Class Power Switching lets you switch the Class (operating class) and Configuration (wiring style) in tandem, giving you two dialed power-voice ranges with the flick of a switch.

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Only available for U.S. shipping and requires a valid U.S. billing address. Please call (866) 498-7882 for more information.


  • Duo-Class Power Amp lets you select either:
  • 1 power tube in pure Class-A (single-ended), producing 5 watts or
  • 2 power tubes in Class-A/B to produce 50 watts via a 5/50 power switch / 2x6L6 and 5x12AX7
  • Fixed Bias for consistent, maintenance-free performance
  • 2 fully independent channels with 4 style modes (clean or crunch, blues or burn)
  • Independent Gain, Treble, Mid, Bass, Reverb, Master, and Contour controls per channel
  • Footswitchable, variable Contour control on each channel provides the power of a 5-band graphic EQ all in 1 rotary control
  • All-tube, long-spring Reverb
  • All-tube FX Loop
  • External Switching Jacks for Channel 1/2, Contour 1, Contour 2, Reverb
  • 3-Button Footswitch (Channel 1/2, Reverb, Contour)
  • Slip Cover
  • Shipping charges apply
  • Only available for U.S. shipping and requires a valid U.S. billing address
  • Please call (866) 498-7882 for more information
Pro Coverage
5 Years Transferable parts/labor, 3 Years on Speakers, 6 Months on Tubes

  • Customer Reviews

Review Snapshot

by PowerReviews

(based on 7 reviews)

Ratings Distribution

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  • 1 Stars



Reviewed by 7 customers

Displaying reviews 1-7

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(41 of 41 customers found this review helpful)


The only amp most players will EVER need!

By Dan

from Springfield, MO

It's very simple. This amp, is fantastic, amazing, great, wonderful, (insert your own positive adjective here)! I've had it for almost a year and will never need another amp again. I get compliments ALL THE TIME on it's fantastic tone. The WIDE range of tones you can get with this amp is incredible. The 5 Watt mode allows you to get some wonderful power breakup at low volumes, but kick it in to 50 Watt and you've got all the headroom and volume you could ever need. The clean tone is one of the best and IMO just as good as any of the vintage Fender cleans. The Burn Channel is great for high gain rock tones and if you want even more gain, add a boost in front and you're done. Sounds fantastic with just a regular SM57 for recording.

(22 of 22 customers found this review helpful)


So Clean It Hurts


from Colonia,NJ

I like the four channels you can set & switch back & forth for any kind of music. This amp will set the tone of your mood. The clean channel is "Spankin Clean". Really brings out the tone of your guitars. I've used PRS, Gibsons (w/burstbusters & w/P90's) all sound amazing.

(16 of 19 customers found this review helpful)



By Rockingeezer

from Chippewa Falls, WI

Having owned this amp for about 4 months, the "new car smell" hasn't gone away. It's expensive,but worth every penny, and heavy but I would expect that out of a quality product (and I'm sure the fact I'm 57 doesn't help either). I love the dual power feature. On the 5 watt setting the rich, deep snarl starts early, and with the clean, crunch, blues and burn setings,endless timbres are possible - honey sweet to carnivorous. In hind sight, the 50 watt option for me was overkill - I can't imagine a venue for our band (we're a bunch of old farts)where I could ever take advantage of it but I guess the added headroom is nice. I kind of wish I'd have gotten the 5:25 and possibly saved a few dollars and pounds. The controls are great with no "light switch" effect in any of the rotary controls, and the mini toggles are cool. One feature I like is that the (long!) cord for the footswitch is attached, so it can't be left behind or forgotten. There's a convenient storage pouch for the footswitch in the back of the open back with velcro to keep it from bouncing around during handling or transport, and the three functions on the footswitches are LED color coded and easily identifiable in low light situations. It also comes with a nice, good looking cover, with a HUGE pocket for cords etc., but I do wish the cover was about 2" longer as it leaves the bottom edge of the amp exposed and succeptable to dings etc.. I do use it with a Musicians Gear amp stand which really makes the controlls easier to see and operate. I play an American Stratocaster, and also use a Boss, compression/sustain, Super Chorus, and DD-3 delay. For what we play, I haven't found a use for an additional distortion pedal. All in all, I really am pleased with this amp. Even when used for private practice the great sound and variety of textures make practicing more fun and make me sound better. Even now when our dimwit President is leaving less and less cash in our pockets, spend the money on this amp - you won't regret it.

(14 of 16 customers found this review helpful)


Great Amp Bottom Line

By Mr. B

from dalton ga.

My Serial # Is 587, This will tell you how long I've had It. Been playing close to 30 year's, The one thing I did'nt like about the amp was as other people has stated It's a little to dark, And It Is. I am not gonna give feature's, I think Guitar Center has done a great job of that, I knew the amp should sound better and have more Gain plus bottom end on the Burn channel, Now the trick to making this Mesa cover every style that has been thrown at me and does a great job doing so, Is Change V1 V2 V3 Only with Tung- Sol 12ax7's Tube's. These are High Gain Tube's, these take's the darkness mostly out, And take's the blanket off, Plus more Gain, The clean is better and not so much compressed. The factory tube's are JJ's, Great Tube's for Bright amp's, But not dark one's. I contacted Mesa Boogie, Buy the way they have the Best customer Service. I know I've used them for Info.Etc.. Anyway they gave me the Info on the Tube's and Said they are JJ's with there lable. This Is NOT a one Trick Pony Amp, It does take some time to get the tone's with the EQ's, So take some time with It and enjoy. Be sure to leave V4 V5 with the Boogie Tube's, They work the Best on the Phaser and Reverb. This amp does have Great Tone Period. Be sure to put the boogie tube's up In case you have to use the 5 year warranty, But I dont expect you will, But just In case It has to have them In the amp to be valid.

(8 of 10 customers found this review helpful)


One of Mesa's Best


from Rochester, NY

I had one of these for a few weeks before I returned it and got a head version. I really like the tone of the amp and had my head for over a year before I sold it. It served me well during that time. The combo version had some real issues with being mechanically noisy. I brought it home to my studio and it was rattling and farting at me when I'd turn it up. I found out if was the speaker baffle rubbing the amp chassis and decided to return it and get the head and cabinet. No more rattles and the head and cabinet were easier to carry to gigs than this combo. Overall the amp itself is super versatile and has some great clean and crunch tones. The reverb is one of the best from any MB's I have played or owned.

(8 of 8 customers found this review helpful)



By Owen

from San Francisco, CA

I played this amp at guitar center a few days back, and I will be returning within the week to make my purchase. The tone is incredible and the wide range of sounds you can get from it is outstanding. The clean channel is so clean its shiny and the burn channel so saturated with gain its slimy. The look and feel of this amp is great, and the quality is truly unrivaled. The 5 watt setting is great for practicing at home, but make sure you try both the 5 and 50 watt settings because they sound a little different.

(1 of 1 customers found this review helpful)



By Selsaral

from Ypsilanti, Mi

I've had this for about a month so I can overcome some of the shiny-new-toy syndrome. I've owned a few amps and tried out many others. I did extensive A/B of the 5:25 and 5:50 at GC. The 5:25 was lighter and smaller and had great tones, but not enough clean headroom for me. The 5:50 is a bit overpowered for my needs, but the cleans are just spectacular, and while it's quite a bit heavier (54 lbs) it also just sounds bigger. It has to be the oversized cabinet. It fills more space. It's less piercing with more dispersion. It's very noticeable verses the last two amps I've gigged with, a Peavey Delta blues and a Traynor YCV40, and compared to the 5:25. To me, this really matters as I get a much more consistent and even volume particularly in my band's small practice space. Less slamming someone in the face with everyone else unable to hear me. The reverb is the best reverb I've ever experienced. I haven't owned a huge stable of grade-A amps, but in my personal experience it's incredible and one of the best parts of the amp. As for tones, the amp is almost too versatile. Two channels, but 4 modes. I love them all with some tweaking, but in the middle of a set you don't always have time to tweak your amp. Getting experience with the amp will help, cause it is possible to make regular tweaks on it between songs. But sometimes I find myself a bit overwhelmed. What you get out of that tradeoff is incredible versatility. From very clean to very dirty. It does all shades of slight breakup with incredible ability. The master volume on the clean channel lets you dial in the exact kind of hair you want at nearly any volume. Great vintage style sounds like the Rolling Stones and Led Zeppelin. The burn channel is all the gain that I personally need, but I don't need modern heavy. The contour feature gives you the scoop required for such sounds, and I am completely satisfied going for Metallica type sounds on the burn channel with the contour appropriately set. I am not an expert on modern sounds tho so folks need to check one out themselves. Having the contour on the footswitch is great for doing covers. I don't need a dirt pedal with this amp. It gives me all of the clean/dirty sounds I need, and I love them. I am using a POD for modulation, delay and a wah. Most band practices I just take the amp and the footswitch tucked into the included pouch. I get great singing sustain/feedback out of this. Depending on how it's set I can get infinite feedbacky sustain out of my strat. Really great stuff. In fact I get better sustain out of this amp than any other I've tried. Despite this, I can control the sounds easily with the volume on my guitar, which is the primary tool I use for boosts and clean to dirty changes. I haven't had a single problem with the amp yet. No rattles, no hums or hiss, no nothing (and I've really, really cranked it haha). This is my first Mesa amp. Excellent build quality. Great tolex, great control pots. Great look. Nice cover. Footswitch is working great for me. Extra long cable for it. Extra long power cable included. I haven't even touched the 5 watt mode yet. Thinking about getting a handtruck for it. The only downside is the price and the weight.

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