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Magnatone Super Fifty-Nine M-80 45-watt Amplifier Head Certified Open Box

45W, 1-channel Tube Guitar Amp Head with 2 Bridgeable Inputs, Master Volume, 4-band Tone Stack, and Lo/Hi Selectable Gain
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Item ID: Super59M80Hd1
Magnatone Super Fifty-Nine M-80 45-watt Amplifier Head

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Magnatone Super Fifty-Nine M-80 45-watt Amplifier Head
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High-gain American Amp with a British Accent

The Super Fifty-Nine M-80 tube guitar amplifier head blends the best of Magnatone's celebrated Super Fifty-Nine MKI and MKII designs into one formidable tone machine. Built to commemorate Magnatone's 80th anniversary, the M-80 delivers 45 watts of EL34-driven power in a push-pull Class AB configuration, combining vintage character with modern versatility. At its core, the M-80 features the tone stacks and gain stages of both the MKI and MKII, giving you the MKII's dynamic low- to medium-gain response as a foundation. Need more bite? Engage the additional MKI-inspired gain stage via the front-panel switch or the included footswitch—perfect for pushing your solos into high gear. The preamp section is loaded with four 12AX7 tubes, while two EL34 output tubes handle power duties with authority and warmth. An onboard 12DW7 tube-buffered effects loop ensures your time-based pedals and ambient effects retain their clarity and depth. Whether you're chasing vintage crunch, articulate cleans, or saturated lead tones, the Super Fifty-Nine M-80 is built to inspire.

The best of both worlds

As the M-80 offers the best of Magnatone's Super Fifty-Nine MKI and MKII amps, it's instructive to take a look at the tonal profile of each model. These are both EL34 amps, and they both deliver that classic British high-gain sound. But there are differences. In contrast with its MKI stablemate, the MKII sports slightly lower gain and more preamp headroom — perfect for chunky rhythm parts. When you need extra punch behind your solos, the MKI high-gain circuit offers higher gain and more compression, effectively turning the single-channel M-80 into a footswitchable 2-channel amp.

Rock the big stages with classic EL34 tone

The sound of the Super Fifty-Nine M-80 quite simply takes your breath away. It nails the classic, big-bottle EL34 sound in all its harmonic complexity. And it's got the grunt to rock the big stages. This versatile beast delivers truly impressive tonal dexterity, taking you from shimmery cleans to vintage grit to Brit-voiced high gain, deploying everything from classic rock overdrive to modern tonal Armageddon that'll strip the paint off club walls. Very tasty, indeed. Plug in and hear what the fuss is all about. Whether you're deploying crispy cleans, arena-shaking crunch, or searing shred, the Super Fifty-Nine M-80 delivers the tone you want — at the volume you need.

Perfect for live gigs and studio sessions

With two EL34s in the engine room, the Magnatone Super Fifty-Nine M-80 delivers 45 watts. Now, these are tube watts, which means you've got more than enough juice for any gig — even if you play heavy music with a powerful drummer. You're also not burdened with a 100-watt behemoth in the studio. Even in a high-gain, master-volume-equipped amp like this, the ability to gain stage freely and push the output tubes to taste is vital in nailing the guitar tone you're after. At Sweetwater, we've found that the Super Fifty-Nine M-80 has a comfortable, broad operating range on tap, for a rich sonic palette that lets you ace any musical scenario. Two studio- and stage-friendly features we really appreciate are the speaker-compensated line output, which can be routed directly to the recording console or front of house, and a tube-buffered FX loop that takes pedals like a champ. You'll find it easy to match speaker cabinets with the M-80, thanks to its rear-panel 4/8/16 ohm switch.

Magnatone: a slice of rock history

Magnatone first began producing electric guitars and amplifiers in the late 1930s. By the '50s and '60s, Magnatone amps had become highly sought after, largely because of their distinctive pitch-shifting vibrato effect, which was responsible for the "watery" guitar sounds you hear on Buddy Holly and early Bo Diddley recordings. Legendary blues-rock guitarist Lonnie Mack employed Magnatone amplifiers to achieve his signature vibrato-soaked sound. Today, Neil Young is also an admirer and uses a vintage Magnatone in his live rig. In 2013, the company entered into a new phase of its evolution, creating a new and improved line of boutique guitar amplifiers that have been embraced by guitar luminaries such as Jeff Beck, Slash, and Billy Gibbons, as well as quite a few of the guitarists at Sweetwater.

Magnatone Super Fifty-Nine M-80 Features:

  • Combines the tone and gain stages of the MKI and MKII into one flexible, footswitchable amp
  • 45W, push-pull, Class AB amp with classic EL34 tone
  • Single channel, with 2 bridgeable inputs, master volume, and 4-band tone stack
  • Lo/Hi selectable Gain, footswitchable (footswitch included)
  • 4 x 12AX7 preamp tubes, 2 x EL34 output tubes, 12DW7 FX loop buffer tube
  • Tube-buffered FX loop interfaces seamlessly with your pedalboard
  • Speaker-compensated line output (must be used with speaker connected)
  • Flexible cabinet matching via rear-panel 4/8/16 ohm switch
  • Vintage American styling with illuminated Magnatone logo
  • Includes 1-button lighted footswitch with 20-in. cable and premium amp cover
What is Certified Open Box Gear?

At Sweetwater, we're so picky that what we call "Certified Open Box" is actually better than what most music retailers sell as "new" gear! Our gear hasn't endured hundreds of people a week plunking away at all the keyboards, fumbling through Stairway to Heaven on every guitar or playing with every fader and knob on a mixer or control surface.

Certified Open Box (also known as a demo) means we’ve had it out of the box for our YouTube channel, displayed at events, tested in our studio, or maybe it was in a customer’s hands for a few days and isn’t ‘factory fresh’ as a result. Every Certified Open Box item we sell has Sweetwater’s 2-year Total Confidence Coverage™ warranty and has been tested and verified up to ‘new’ specs by our factory-authorized technicians to make sure it’s in perfect working order before we ship it to you.

When you buy a Certified Open Box item at Sweetwater, you get:
  • 2-year Total Confidence Coverage Warranty™!
  • Products inspected and tested by our factory-authorized techs, guaranteed to function like new (or better)!
  • FREE shipping on most items
  • Equipment that will MEET or EXCEED your expectations!

Click HERE to browse our current inventory of Certified Open Box equipment. Purchasing Certified Open Box gear from Sweetwater is a smart and safe way to save!

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Tech Specs

  • Type: Tube
  • Number of Channels: Single channel, dual gain modes
  • Output Power: 45W Class AB
  • Preamp Tubes: 4 x 12AX7
  • Power Tubes: 2 x EL34
  • EQ: 3-band EQ
  • Inputs: 1 x 1/4" (high), 1 x 1/4" (low)
  • Outputs: 2 x 1/4" (4/8/16 ohms), 1 x 1/4" (compensated out)
  • Effects Loop: Tube buffered
  • Footswitch I/O: 1 x 1/4" (gain select)
  • Footswitch Included: Yes, 1-button footswitch
  • Bias Type: Adjustable Fixed
  • Construction Material: Birch Plywood
  • Power Source: Standard IEC AC cable
  • Height: 9.5"
  • Width: 26"
  • Depth: 8.25"
  • Weight: 42 lbs.
  • Manufacturer Part Number: 460

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Reviews

BEST SOUNDING AMP eva!!!!!
I could tell you all about it's vintage sound and breathtaking tone. but I wouldn't do it justice.

so to sum it up; SWEET JESUS.

ps: you know in a band setting live, occasional mistakes (they happen to all of us) you turn to offender and smile.

This amp is just sick. At rehearsal debut, everyone in my band turned and smiled at me on every tune. I thought, I' m doing this right, wtf?
the smiles I found out were over the magnificent tone. every tune we play now sounds better.

Thanks to JIMMY DORMIRE of the Outlaws, for first taking time out of a tour to return my email , and second for turning me on to this wonderfully vintage sounding amp. His tone at the 2 shows I saw was just outstanding, that's what led to all this. previously I played a series of Marshalls. I love them too. well i used to.......
Music background: 61 yr old lead guitarist in southern rock band 50 years of playing guitar.
Great amp !!
I bought this amp after lengthy conversations with my Sweetwater rep Joe Schaefer. ( I literally called Joe about 4 times a week for a month ! ) I explained to Joe exactly what I was looking for, what my bands song list is and the capabilities of the amp. I am totally impressed with it ! The tone is awesome, I have been playing now for 55 years and I've owned just about every amp out there and my M80 far exceeds my expectations. I've even down sized my pedal board to only a chorous pedal and a fuzz face because of the excellent tonal quality of this amp ! Especially being able to switch between 2 gains ! My band gigs 3 weekends a month and the head is not that heavy where it creates a problem for me. I am now looking at the 15 watt version for playing at smaller venues I am totally in love with this amp to the point I now have my Marshall, Supro and Fender amps up for sale. It's a little on the expensive side but well worth it !! Joe and Sweetwater are top notch !