MB Bass Series Amplifiers

MB15 Combo • MB30 Combo • MB60 Combo • MB150 Combo • MB4210 Combo

Lemmy

(Motorhead)

“If it has Marshall written on it you can buy it without even a test drive,they are that good.”

Left to right:

MB15 Combo

MB60 Combo

MB30 Combo

MB150 Combo

For the aspiring bass player we offer our comprehensive MB Bass Series which offers two channels throughout the entire range. The Classic channel presents gain worthy of the greatest rock bass player and the heavy tone that is expected from a Marshall amp. The Modern channel hits those super crystal clean notes when clarity is a must. The higher wattage amplifiers contain an ECC83 pre-amp valve on the Classic channel and all amps have a Limiter to prevent the power amp from clipping. Scoping the complete bass playing spectrum the MB Bass Series has an amp to suit the beginner, intermediate or professional player.

MB15 Combo

At just 15 Watts, the MB15 combo punches well beyond its expected weight. The 1x8” speaker packs the power warranting the Marshall name, making this a perfect practice amp or smaller stage amplifier. This compact workhorse has two channels, Modern and Classic, with a shared 3-band passive tone network, featuring a mid Voice control. The Modern channel has a switchable compressor with variable level control.

Features: Two channels, Emulated Line Out, Limiter, CD input and a Headphones socket.

MB30 Combo

Next in the MB range is the 30 Watt, 1x10”combo. The MB30 takes the budding bass player a step further to hitting the stage with aggression and growl. Like the 15 Watt combo the MB30 has two channels (Modern and Classic) with a shared 3-band passive tone network, featuring a mid Voice control with three modes.

The Modern channel has a switchable compressor with variable level control. Both channels are selectable via an optional single footswitch.

Features: Series Effects Loop, Emulated Line Out, Limiter, CD input, Headphones socket and Footswitch socket.

MB60 Combo

The portable MB60 Watt, 1x12” combo packs a mighty bottom-end punch making it ideal for the rehearsal room or the pub gig. Again, the combo has two channels (Modern and Classic) with separate EQ for each. The Modern channel features Bass, Treble, parametric Mid and switchable compressor with variable level control. The Classic channel with its ECC83 pre-amp valve includes a Boost switch and has a 3-band passive tone network featuring a mid Voice control with three modes. Both channels will be selectable via the supplied single footswitch.

Features: Series Effects Loop, balanced Line Out with switchable modes (pre and post), External Speaker Output, Limiter, CD input and a Headphones socket.

MB150 Combo

With 150 Watts of sheer bass power behind it, the MB150 houses a 1x15” speaker that can only mean one thing – you mean business! This combo in the series offers the tone and versatility required by any professional bass player. Yet again, the combo has two channels (Modern and Classic) with separate EQ for each. The Modern channel features Bass, Treble, parametric Mid and a switchable compressor with variable level control. The Classic channel with its ECC83 pre-amp valve includes a Boost switch and has a 3-band passive tone network featuring a mid Voice control with three modes. The channels are selectable via the supplied single footswitch.

Features: Series Effects Loop, balanced Line Out with switchable modes (pre and post), External Speaker Output, Limiter, CD input and a Headphones socket.

MB4210 Combo

For those wanting to leave a lasting impression with not only the audience, but also fellow band members, our higher wattage combo’s are just what the doctor ordered. The MB4210 will send booming bottom-end signals thudding through the chest of everybody within a 200 yard radius! The 450 Watt, 2x10” combo with HF horn has two channels (Modern and Classic) with separate EQ for each. The Modern channel features Bass, Treble, a parametric Mid and a switchable compressor with variable level control. The Classic channel with its ECC83 pre-amp valve includes a Boost switch and has a 3-band passive tone network. The MB4210 also lets you select a blend of the two channels, either from the front panel or via the supplied two-way footswitch. The overall volume of the blend is adjustable in addition to the balance between the two channels.

Features: Series Effects Loop, balanced Line Out with switchable modes (pre and post), external jack and Speakon® speaker outputs, CD input, Limiter, Master Volume and a Headphones socket.

AMPLIFIER SPECIFICATION

FEATURES	MB15	MB30	MB60	MB150

Power (RMS)	15 Watt	30 Watt	60 Watt	150 Watt
Impedance	n/a	n/a	4 Ohms	4 Ohms
Speaker Configuration	1 x 8”	1 x 10”	1 x 12”	1 x 15”
Limiter	✓	✓	✓	✓
DI Line Out	Emulated Jack	Emulated Jack	XLR (Pre & Post)	XLR (Pre & Post)
FX Loop	No	✓	✓	✓
Footswitch	No	1 Way (optional)	1 Way (included)	1 Way (included)
2 Channels	✓	✓	✓	✓
Compressor	✓	✓	✓	✓
ECC83 Pre-amp Valve	No	No	✓	✓
Boost Switch	No	No	✓	✓
Mid Voices	1	3	3	3
Dimensions (mm)	390 x 380 x 240	440 x 410 x 260	535 x 505 x 325	580 x 585 x 355
Weight (kg)	12	14.8	23	30
* with extension cabinet

52	Marshall Amplification Product Catalogue

Marshall Amplification Product Catalogue

JCM800 Series specifications

Marshall Amplification is synonymous with rock music, and the JCM800 series is one of its most iconic models. Launched in the early 1980s, the JCM800 series redefined high-gain amplification and became a staple for countless rock and metal guitarists. Known for its raw power and tonal versatility, the JCM800 has left an indelible mark on the music industry.

One of the defining features of the JCM800 series is its pure, aggressive sound. At the heart of these amplifiers lies a high-gain preamp circuit, which delivers a rich, harmonically complex tone that is ideal for modern rock styles. The JCM800 offers a variety of wattage options, typically ranging from 50 to 220 watts, allowing players to choose the right power for their sound and performance environment.

The classic EL34 power tubes serve as the backbone of the JCM800's tone. These tubes provide a warm, dynamic response and a pronounced midrange that perfectly complements the heavy distortion and sustain the amp is known for. The two-channel setup—commonly featuring a "Normal" and a "Overdrive" channel—grants players flexibility in their sound. The Normal channel is perfect for achieving clean tones, while the Overdrive channel unleashes an intense crunch that can be dialed in to suit any style.

Control features on the JCM800 amplifiers are straightforward yet effective. Simple tone controls—bass, middle, treble—allow players to sculpt their sound easily. The added presence and resonance controls enhance the amp's response, delivering everything from bright, cutting tones to thick, powerful sounds ideal for heavy riffs.

Another key technology in the JCM800 series includes the use of PCB (printed circuit board) design, improving reliability while maintaining an accessible serviceability profile. Marshall also incorporates features like series effects loops, allowing musicians to integrate their favorite pedals effortlessly.

The JCM800 has become a beloved choice for many legendary guitarists, with its sound frequently associated with iconic recordings from bands such as Guns N’ Roses, Metallica, and Nirvana. Available in various configurations, including heads, combos, and cabinets, the JCM800 series remains a cutting-edge line of amplifiers that capture the essence of rock music. Its rich history, combined with its powerful features, continues to inspire guitarists around the world. With the JCM800, Marshall Amplification has solidified its status as a pillar in the foundation of rock tone.