Shop Keyboard Deals, Financing, and More

Roland KC-400 - 150-watt 12-inch Keyboard Amp

150W, 4-channel Keyboard Amplifier with 12" Woofer, Horn Tweeter, XLR Mic Input, and Stereo Link
$729.99

Earn $37 back in Bonus Bucks OR pay $16/month with 48 month financing*

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

Roland KC-400 - 150-watt 12-inch Keyboard Amp
In Stock!
$729.99
Add to Cart
Add to list
Back to navigation

This article was Written By

Our Product Research Team

Get to know them!

Big Sound and Performance Flexibility

The Roland KC-400 4-channel keyboard amplifier is an outstanding solution for amplifying your keyboard and synthesizers, complete with onboard mixing and full-range sound. In fact, it's also a well-equipped portable PA with an auxiliary input for external audio and an XLR microphone input for vocals. With a 12-inch woofer and a separate tweeter driven by 150 watts of power, the KC-400 is ready for practice sessions and gigs. And for stereo operation or simply to push more air, you can link two KC-400 amps together using the Stereo Link connection. If you came to Sweetwater searching for a versatile keyboard amplifier, then you've found it in the Roland KC-400.

Deeper bass and better sonic balance

Roland's KC series amplifiers have been some of the most popular keyboard amps at Sweetwater for over a decade. This KC-400 represents the latest generation of the KC series, featuring a redesigned power amp and power supply. These not only provide more stable operation than ever, but they also help the KC-400 serve up deeper bass and a wider sonic range overall.

Custom speakers for enhanced detail and depth

To take advantage of its revamped power section, the KC-400 keyboard amp features a custom-designed 12-inch speaker for exceptional fidelity. Combined with its built-in tweeter, the KC-400 delivers solid lows, prominent mids, and detailed highs. Synth bass patches thump with authority, while piano and organ sounds speak with clarity and detail. Whatever you plug into it, the KC-400 amplifies it with stellar sound quality.

Roland KC-400 Keyboard Amplifier Features:

  • Keyboard amp for practice and performance
  • Highly efficient 150-watt amplifier with 12-inch speaker and horn tweeter
  • 4 channels, including 1/4-inch line input channels and an XLR microphone input
  • Stereo auxiliary input (RCA type) for connecting portable music players
  • Stereo Link connection allows you to combine 2 KC-400 amps for stereo operation
  • Subwoofer output allows you to connect a separate sub for more bass
  • Rotary controls for adjusting channel and headphone levels, plus Low, Middle, and High EQ

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

  • Speaker Size: 1 x 12", 1 x horn tweeter
  • Total Power: 150W
  • EQ: 3-band EQ
  • Inputs: 8 x 1/4" (L/mono, R), 1 x XLR, 1 x 1/4" (stereo link), 2 x RCA, 1 x 1/8" TRS (aux)
  • Outputs: 2 x 1/4" (L/mono, R), 1 x 1/4" (stereo link), 1 x 1/4" (headphones), 1 x 1/4" (sub out)
  • Height: 18.56"
  • Width: 19.31"
  • Depth: 15.18"
  • Weight: 48.56 lbs.
  • Manufacturer Part Number: KC-400

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

Roland amp

Awesome very loud amp
Music background: Play by ear ,dad taught me
Rated 5/5

Wow the KC400 really shines

Been using the Roland KC400 for a blues jam in with a Yamaha YC61 keyboard. Don't worry about having a punch if you want to shine through the rest of the band. Not me playing in the video. Not unusal to have a couple others set in during the evening. So far everyone really likes the little YC61 board in combination with the KC400 amp.
Music background: hobbyist
Rated 5/5

Great Keyboard Amp

I bought one in 2018. It sounded great and did everything it was supposed to. I just purchased a second one and use the stereo link feature for larger venues. This helps fill out the on stage sound without requiring one large heavy amp. Now I have an easy to transport rig for any size venue.
Music background: Weekend Musician for 50 years
Rated 5/5

Very happy

There are times when I can't believe how close to a real piano this sounds. Other times the mid doesn't sound.....exactly right but still very good. The more "FULL" I play the better it sounds....Probably a reason for that.

That said, I may just be having trouble dialing in my specific keyboard but mine isnt expensive and most of the time it sounds fantastic.
Music background: 40 years piano
Rated 5/5

Roland KC 400 amp

This is one of the best keyboard amps out it sounds great with low end in high really brings the sound out of your keys
Music background: Play for fun

Simply put, modern electronic music wouldn't exist without Roland. Many of the electronic musicians here at Sweetwater cut our teeth on TR Rhythm machines and fondly remember programming our first TB-303s. We owe a good part of our careers to this amazing and innovative company. It's been fun to watch and grow right alongside Roland, as they've introduced wave after wave of revolutionary keyboards, digital pianos, and more. For example, Roland's V-Drum Kits continuously redefine the possibilities of electronic drums, beginning with SuperNATURAL technology to the latest Prismatic Sound Modeling. We're huge fans, and we'd love to tell you all about them. Whether you want a pocket-sized synth or a cutting-edge video mixer, if Roland makes it, then Sweetwater is 100% behind it.

Close Close $2,000 Pick Your PRS 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, has been entered to win this giveaway. Good Luck!