Skip to main content
Play Video
10% Off $199+ With Code: winter
Markbass Markbass

Markbass CMB 121 Black Line 1x12 150W Bass Combo Amplifier

399.99 $399.99
Or
6-Month Special Financing
Limited time Learn more
More ways to pay:
Lease-to-own with Progressive Leasing. Learn more
Loyalty Points Icon
Loyalty Points Icon
Earn 3,200 reward points
($32.00 in credit)
Earn 3,200 reward pts.
($32.00 in credit)
Inventory Msg Check Mark Inventory Msg Exclamation In Checkout Promo Inventory Msg Download Icon
In Stock & Ready to Ship
Most orders placed before 3 p.m. ET ship same day (except weekends and holidays).
  • Free Shipping
  • Top Rated
  • Top Seller
  • Flexible Financing
Product Warranties Icon Product Warranties Icon

Gold Coverage Protection

Protect your gear

Chevron Right Icon
Overview

An impressive entry-level amp with professional features to develop your talent.

The Markbass CMB 121 Black Line 1x12 150W bass combo amplifier provides the perfect sound for students and beginners to hone their skills, with enough power for gigs. Markbass delivers their signature rich low end in an intuitive package, so you can focus on technique and expression. With the CMB 121, you get great tone that responds dynamically to your playing, helping build confidence and passion.

Start With Great Tone to Develop Your Talent

When first learning bass, it's crucial to have an amp that sounds and feels inspiring to play. The CMB 121 combo delivers the famous Markbass tone in an affordable package, with 150 watts of power to hear every nuance. It satisfies the need for a dynamic, quality sound that keeps you engaged through long practice sessions. You'll get the most out of daily rehearsals with an amp that brings out the best in your developing style.

Practice Anywhere With Headphone and AUX Inputs

The CMB 121 Black Line allows you to practice bass even when you can't play out loud. Just plug your headphones into the dedicated output and you'll get Markbass tone straight to your ears. The AUX input lets you mix in audio from phones, tablets or music players. You can play along with your favorite songs or drum loops without disturbing others—perfect for practice on the go or late at night. It's easier than ever to put in the time and get better.

Intuitive Controls Dial in Your Sound

Shape your tone with the simple, musical controls on the CMB 121 combo. It features a classic 4-band EQ, plus two Mid frequency knobs for detailed tweaks. Scoop out mids or add some edge with the "Scooped" switch or hit the "Boost" for more growl and saturation. Whether you want a smooth, warm sound or an aggressive slap tone, it's easy to find your signature sound.

Gig-Ready Features Let You Plug and Play

Don't let the entry-level price fool you—the CMB 121 Black Line has pro features to handle real gigs. The 150W provide ample volume for rehearsals and shows. Just plug the balanced XLR line out to send your tone to the PA system for more projection. There's also an effects loop to integrate pedals and racks seamlessly into your signal chain. The CMB 121 gives you the tools to sound like a pro when you're ready to perform.

Features

  • 150W combo with 12" woofer and tweeter for full-range sound
  • 4-band EQ with scooped mids and boost switch for tone shaping
  • Headphone out and AUX in for silent practice with media playback
  • Balanced XLR out and effects send/return for gigging and pedal integration

Order the Markbass Black Line 121 combo today.

Specs

CMB 121 Black Line 1x12 150W Bass Combo Amplifier Specifications:

  • Speaker: 1x12"
  • Output power: 150W
  • EQ: 4-band
  • Controls: Gain, Master Volume, Scooped and Boost switches
  • AUX in: Y
  • Headphone out: Y
  • Balanced line out: Y
  • Send-return: Y
  • Dimensions (WxHxD): 17.32" x 17.32" x 14.17"
  • Weight: 35.27 lb.
Q&A

Questions & Answers

Do you have questions about this product?

Shop with a Friend
Free Shipping
  • Free Standard Ground shipping (48 contiguous states, some overweight and Used/Vintage items excluded).
  • Orders placed before 3 p.m. ET usually ship the same business day.
Learn More
2-Year Free Warranty on Guitars

Every guitar or bass you purchase from Musician's Friend (electric or acoustic, New or Open Box) includes two years of protection from manufacturer defects.

Contact Us for Details
We're Here for You

Our Gear Advisers are available to guide you through your entire shopping experience. Call or Chat for expert advice and to hear the latest deals.

Contact Us
Proactive Advisor Support Chat