Enter to Win a $8000 PA System!

Marshall JTM45 2245 30-watt Plexi Tube Head

30-watt 2-channel All-tube Amplifier Head with 3-band EQ
$2,999.99

Or pay $499.99 for 6 months with Easy Pay

See all payment options
Backordered - More On The Way!

This item requires extra delivery time from Marshall. Order today to reserve yours now, risk-free, or contact us for more information.

Notify me when in stock
Add to Cart
Notify me about deals

Ask An Expert

Our expertly trained Sales Engineers are ready to help!

What is a Sales Engineer?
Sweetwater Gear Exchange

Have one to sell?
Check out Sweetwater's Gear Exchange!
Learn More

Most Popular Accessories & Related Items

Marshall JTM45 2245 30-watt Plexi Tube Head
Backordered - More On The Way! Notify me
$2,999.99
Add to Cart
Add to list
Back to navigation

This article was Written By

Our Product Research Team

Get to know them!

Reissue of the Iconic JTM45 "Plexi"

The Marshall JTM45 tube amplifier head is widely considered to be the definitive '60s Marshall. With 30 watts of power channeled from an all-tube signal path, you'll command the legendary guitar tones of '60s rock legends. The JTM45's sonic sweetness comes courtesy of a GZ34 tube rectifier, which imparts the natural sustain and compression the JTM45 is famed for. Simply put: you'll love how it sounds - and feels - to play through the Marshall JTM45 tube amplifier head.

Marshall JTM45 Tube Amplifier Head at a Glance:
  • Your guitar will sing
  • Vintage reissue
  • Low wattage for a vintage Marshall
Your guitar will sing

If vintage blues and rock tones are what you crave, then you'll love the Marshall JTM45. This isn't a high-gain amp for metal, nor is it a programmable, multi-channel monster. This is the guitar tone that shaped the sound of '60s blues and rock, from sweet and smooth clean tones to overdriven, growling dirt. One channel and basic tone controls are all that's needed for iconic tone. And if you need to push the JTM45 to the limit, just put your favorite gain boost pedal in front of it and listen to your guitar sing.

Vintage reissue

Part of Marshall's Vintage Series, the JTM45 amp head is an exact re-creation of the legendary amp from the '60s. Also known as the 2245, the JTM45 packs three ECC83 preamp tubes and a pair of 5881 power tubes for incredible tonal prowess. You also get the revered GZ34 tube rectifier, which is responsible for the JTM45's smooth, singing quality.

Low wattage for a vintage Marshall

The JTM45 only uses 30 watts of power to create its epic tones. That's pretty low power when you consider Marshall's other models at the time. But 30 watts is perfect for live use in small- to medium-sized venues, and it's ideal for recording. You can get the sound of a fully-pegged tube amp at a much more reasonable volume level, reducing mic bleed in your studio and your onstage volume when gigging out.

Marshall JTM45 Tube Amplifier Head Features:
  • Accurate reissue of the legendary JTM45 amplifier, a '60s rock legend
  • 30 watts of power, perfect for gigging and recording
  • GZ34 tube rectifier adds natural, smooth compression and sustain to your tone
  • Sounds great with gain boost pedal in front of it
  • Straightforward control set is all you need to craft a range of vintage '60s guitar tones
Take control of the iconic tones of rock's revolutionary days with the Marshall JTM45 tube amplifier head!

Additional Media

Warranty Info

Sweetwater's FREE 2-Year Total Confidence Coverage Warranty

Extra peace of mind at no extra cost.

  • Save money with FREE parts and labor
  • Get back to making music with the industry's fastest turnaround time
  • Fix it the first time with our award-winning, factory-certified Service Department
Learn More about Total Confidence Coverage

Free 2-year Warranty

Sweetwater's 2-year Total Confidence Coverage™ Warranty gives you extra peace of mind at no extra cost.

Learn More about Total Confidence Coverage
Tools Icon

Save money with free parts & labor!

Fast Icon

Get back to making music with the industry's fastest turnaround time.

Award Icon

Fix it the first time with our award-winning, factory-certified Service Department.

Back to navigation

Tech Specs

  • Type: Tube
  • Number of Channels: 2
  • Total Power: 30W
  • Preamp Tubes: 2 x 12AX7 (preamp), 1 x 12AX7 (phase invert)
  • Power Tubes: 2 x 5881 (power), 1 x GZ34 (rectifier)
  • EQ: 3-band EQ, Presence
  • Inputs: 2 x 1/4" (ch 1), 2 x 1/4" (ch 2)
  • Outputs: 2 x 1/4" (4/8/16 ohms)
  • Effects Loop: No
  • Bias Type: Adjustable Fixed
  • Construction Material: Black Tolex
  • Power Source: Standard IEC AC cable
  • Height: 8.07"
  • Width: 25.98"
  • Depth: 10.24"
  • Weight: 32.19 lbs.
  • Manufacturer Part Number: 2245-01

What Makes Our Sales Engineers Great?

Sweetwater Sales Engineers are a world-class team of experts dedicated to you. Hand selected from across the globe, each brings a wealth of experience and expertise in the world of music gear to provide you with unparalleled service completely free of charge. Friendly relationships, real trust, and the right gear are only a call or a click away!

Back to navigation

Customer Reviews

Write your review
Rated 5/5

Low wattage for a vintage Marshall?

Ok. You want that classic plexi sound. Go for it. It's clean and beautiful. But you want to crank it up to 8 or 10 for that Hendrix grit? Just prepare yourself. They rate it at 30 watts but it is crazy loud. I had a 50 watt plexi back in the day and--ok, I've lost some braincells over the years, but I'd swear this JTM45 is louder than my old 50 watt head was. Just so you know.
Rated 5/5

It's Iconic For a Good Reason

It seems a little silly to do a review of a JTM45. What is there to say about one of the most iconic amps ever built? Maybe "Put on a Peter Green song. That's a JTM45. Or the Beano album. Yeah. It's THAT sound."

But here goes.

I paired it with an Orange 2X12 that I loaded with Celestion Gold speakers.

This is, hands down, the best amp I've ever plugged into. Sweet, sweet cleans, with great note articulation. And a wonderful overdrive sound. Not metal. (Although Angus Young might disagree.) I keep it cranked to about 8 or 9--which is as loud as I can stand even with my Weber attenuator.)It's just on the verge of breakup and is the prettiest tone I've ever found. I find myself using the volume knobs on the guitar way more than any dirt pedal. It just doesn't need them. (But, can be used at lower volumes as a great pedal platform.)

Kick on a decent reverb pedal and Peter Green's "I Loved Another Woman" is right there. Crank the volume knobs on the Les Paul and roll the tone back--yep, sounds like the woman tone to me.

The build is first-rate. Not a flaw on the head at all.

And for 30 watts, it is super, super loud. If you are playing at home, get an attenuator because you are going to want to crank it. If you can't cut through in a band with this amp, there is something wrong with your drummer.

And a note about my sales rep. If every company on the planet provided the kind of customer service that Simon provides, the world would be a much better place. His professionalism is flawless.
Rated 5/5

Quintessentially Marshall

I purchased this amp from Sweetwater a couple years ago. I rate this amp a perfect 5 stars. The amp sounds very warm, clean, and versatile. The amps ability to play all the spectrums of clean to distorted makes this amp a desert island piece. I have used every type of guitar while playing the JTM and I have not found a mismatch yet. My favorite is a Les Paul, these two were made for each other. I own many amazing vintage and boutique amps, this amp at 2K is by far the best value in the new reissue amp market.
Music background: Producer/Engineer/Artist
Rated 5/5

Everything it's made out to be and more

To get that amazing Marshall break up tone you have to run it about 7-10. Well going through even a 2x12 this is amazingly loud (doesn't even go to 11!).

That being said, this amp is amazing. I was debating on swapping the 5881s for KT88s but I love it as is. I may still try it just for fun but it needs no mods or upgrades. Just unbelievably good tone.

I also didn't understand why people would jump the channels, but after fiddling around for a few days it's really a good combo of channel 1 & 2 that you can get. Not quite as bright but not too dark either, just right!

Ryan Clapper is my rockin sales guy, don't be afraid to ask for him as he's always on the ball for me and my gear needs. I never understood why people would comment about their sales guy, well once you've got your own, it feels like 1970s levels of service instead of what you typically get today.
Music background: Amateur (at best) Musician
Rated 5/5

Marshall JTM24 reissue

this is the amp the i was searching for�.. over the years JTM45 is the best!!!!

There are countless "British"-style guitar amplifiers out there, but take it from the lifelong guitarists and tone connoisseurs at Sweetwater, when it comes to Marshall tone, there's nothing like the real thing. We've played them all, from vintage JTM45s and the ultra-cool Plexi reissue to modern handmade masterpieces such as the JVM410. There isn't a model among them we can't recommend with total confidence, and that includes their more affordable models too, like MG, DSL, and Code series amps. Thanks to our tight relationship with Marshall, Sweetwater's always on the cutting edge of their latest designs, custom models, and limited-edition gems. If you want iconic tone from across the pond, you want Marshall, and your Sweetwater Sales Engineer will help you find the perfect one.

Close Close $8,000 PA System Giveaway -- input your email address below to enter or click here to learn more.

See giveaway details & rules or check out our past winners!

Success!

Your email, test has been entered to win this giveaway. Good Luck!