Our TWINKLE series phosphor bronze strings have a carefully selected mix of copper and zinc, 
adding a dash of extra copper to our 80/20 blend. The trace amount of phosphorous in the bronze 
makes them additionally resistant to corrosion when compared to an 80/20 bronze composition. 
They provide a balance, warm and mellow tone with a refined mid-range presence - delivering 
a natural sound.

 
MB58R CMD 121 PURE
The MB58R series is a further example of how Markbass is always one step ahead in innovating using state-of-the- art 
technologies. Once again Marco De Virgiliis with his pioneering soul has managed to create this new series of 
products which, with the use of custom components born thanks to years of experience and research Markbass and the 
use of revolutionary materials with an eye to the future and the evironment, has really nailed the tone and power 
versus portability issue.
TheMB58R CMD 121 PURE features 1x12"Markbass Neodymium custom speaker and a new hi-fi tweeter. This is
the perfect choice if you want a combo with clean, powerful, loud tones that really show off your bass’ natural
qualities, and thanks to the enclosure material and technology it weighs only 12.58 kg!

UNMISTAKABLE TONE
Strength for Markbass products has always been an unmistakable tone. This new series has custom components born 
thanks to years of experience and research.

MADE IN ITALY
Not just technology but also GLOCALIZATION and Made in Italy. Glocalization is for Markbass a key word, intended 
as the use and optimization of local resources to be competitive on the global market.

ECO-FRIENDLY
It’s time to think about the future; focus on the product and on the natural environment that surrounds it.

AMAZING POWER TO WEIGHT RATIO
State of the art and technology with an amazing power to weight ratio.The MB58R CMD 121 PURE features 1x12" 
ultra-light neodymium speaker and revolutionary enclosure material and technology. Designed for bass players 
who need power, portability and top performance, this combo weighs only 12.58 kg, it has 
300 watts (RMS) of power standalone, and it can be easily upgraded to a powerful 2x12" 500W rig with the 
addition of a MB58R 121 PURE cabinet.

BEST QUALITY, RIGHT PRICE
The new series of products has an incredible strength point: high quality and innovation at the right price.

MODERN CLASSIC WINNING AESTHETIC
Considered by all as the most beautiful cabinet on the market.



SPEAKER
1 x 12” Neodimium Custom

TWEETER
Markbass hi-fi tweeter

MARKBASS HI-FI TWEETER
400W RMS (AES Standard)

REFLEX
Rear

IMPEDANCE
8 ohms

CROSSOVER FREQUENCY
3.5 kHz

FREQUENCY RESPONCE
45Hz to 20KHz

SENSITIVITY DB SPL
99dB

CONTROLS
GAIN | 4-BAND EQ | OLD SCHOOL FILTER
MUTE SWITCH | MASTER VOLUME
LINE OUT level control | PRE/POST EQ e GND switches
3 WAY SWITCH: flat/scooped-mid/FSW

OUTPUT POWER
500W RMS @ 4 ohm, 300W RMS @ 8 ohm

OTHERS
BI-BAND LIMITER | FSW (OPTIONAL) mute/scooped

DIMENSIONS
45cm (w); 57.6cm (h); 47.1cm (d)

WEIGHT
12.58 kg

From beginners looking for their first bass, to musicians seeking a quality bass as second instrument, the 
affordable price of MB YELLOW BASSES is sure to please everyone. The MB
Yellow Bass family includes the JB, PB and M-MASTER models... ensuring all preferences are catered to.
The MB YELLOW JB bass features a slim neck with a tapered feel at the nut, based on feedback from players who 
felt this offered easier finger placement. The two single-coil pickups make it a very versatile bass, you can 
blend them to access a wide variety of tones - it’s great for finger style or slap. If you want a brighter, 
trebly tone with a midrange growl in Jaco's style and sound, the MB Yellow JB is for you.

GREAT BASSES AT AN AFFORDABLE PRICE
Taking advance of the experience from our successful Gloxy series, our primary goal was to ensure you can 
purchase an enjoyable bass to play, at an affordable price. From beginners looking for their first bass, to 
musicians who seeking a quality bass as second instrument, the affordable price of these basses is sure to please 
everyone.

THREE ICONIC BASS MODELS
The MB YELLOW JB bass is very comfortable thanks to its narrower neck and offset body - and with a great variety 
of tones, thanks to its two single coil pickups. It breathes musicallly either when played with fingerstyle or 
slapped, giving easy avvess to the the style of Jaco and Marcus.
The MB Yellow Bass family also includes our PB model with its wider neck and punchy tone from a single split coil, 
and the M-MASTER model with an easily accessible short scale - all bassists' preferences can be catered for!

MB YELLOW COLOR
Yellow is a color often considered to give you confidence. It brings creativity, joy to our hearts, and lifts up 
our spirits. On these instruments, our Yellow transcends all of these - it makes them AMAZING! The pairing of our 
MB Yellow with a black pickguard is stunning, it's love at first sight for everyone who sees it!

TRIED AND APPROVED BY PROFESSIONALS
The MB Yellow bass prototypes in the showroom at our HQ have caught the eyes of all artists and visitors, each 
guest couldn't help picking them up and asking us for a cable and amp to test drive them. And the response was 
always the same -  many basses at this price point can almost feel like playthings, however in contrast - 
everyone that has tried our bass has said I WANT ONE!

QUALITY CONTROL
Every MB YELLOW instrument is individually inspected at our headquarters in Italy, receiving the same standard of 
care and attention as our premium series of instruments.

BODY:			JB style | Poplar
NECK:			Maple
FINGERBOARD:		Laurel | 34" scale – 20-fret
PICKGUARD:		Black / Chrome control plate
PICKUPS/ELECTRONIC:	J/J single coils 
			VOL/VOL/TONE (passive)	
FINISH:			Markbass YELLOW
OTHERS:			Bag and strap included

Markbass has entered the entry level market segment for the first time, without sacrificing quality.We understand 
how important it is for students and beginners to have good sound for their daily practice, helping to better 
express themselves while developing their talent and passion for Music!
The CMB121 Black Line is an amazing entry level 150W combo, the perfect choice for those who want to start with 
the right sound and have enough power for both rehearsals and gigs. It delivers a sound superior to any other 
practice amp at this price, thanks to Markbass tone and quality.
It features a headphone output, and an aux input for connecting your favourite media players to mix with your 
bass sound, letting you practice anywhere, anytime.

START WITH A GREAT SOUND TO DEVELOP YOUR TALENT
Buying the right amp when starting out in Music is one of the most important decisions both students and 
novices can make.
Key to success is developing technique, along with refining sound preferences – including a responsive dynamic 
to their
playing during practice. The CMB121 Black Line combo satisfies all these requirements, providing our famous 
Markbass tone
and response.

INEXPENSIVE, NOT CHEAP
This is the first time Markbass has focused on the lower end of the market. When we began, our main goal was 
to ensure
you can buy something you enjoy the sound of. Almost all of our competitors build cheap equipment without 
considering that
young and talented players who are going to use it every day may become frustrated and lose their passion due 
to a poor sound.
At Markbass we have always had a deep respect for all artists, beginners to professionals, and above all for 
young talent
that strive to become the next generation of great artists. They need, and deserve a superb amp with superior 
sound – and
our combo is the best choice!

4-BAND EQ, SCOOPED and BOOST SWITCHES
The simple and effective controls section includes 4-band EQ with 2 mid controls, a SCOOPED switch for 
enhancing treble and
BOOST SWITCHES switch to add nice saturation to your sound

HEADPHONE OUT / AUX IN
The amp section includes a headphone output and an aux input for media players, letting you practice anywhere 
and anytime
you like, always with a professional sound.

BALANCED XLR OUT / SEND-RETURN
The balanced XLR line out allows you to run your CMB 121 Black Line amp through the PA, ideal for larger gigs. 
In addition
this combo also features a send/return FX loop to connect stompboxes and multi-effect units.
- Product specifications are subject to change without notice

SPEAKER
1×12"
EQ
4-band

CONTROLS
AUX IN / HEADPHONE OUT
BALANCED LINE OUT / SEND-RETURN

OTHERS
AUX IN / HEADPHONE OUT
BALANCED LINE OUT / SEND-RETURN

OUTPUT POWER
150W

DIMENSIONS
44 cm (w); 44 cm (h); 36 cm (d)

WEIGHT
16 kg

W 116 BK

Topp:Selektert Gran
Sarg/Bunn:Mahogni
Hardware:Krom
Pickup/preamp:Nei
Finish: Blank
Farge: Vintage Sunburst