Markbass MB58R CMD 151 P 300W 1x15 Lightweight Bass Combo Amplifier

The Lightweight 15-Inch Revolution: Markbass MB58R CMD 151 P Bass Combo

For bass players who crave the deep, pillow-soft low-end cushion of a traditional 15-inch speaker, the touring reality has always been a heavy burden. Classic 1x15" combos are historically notorious for being cumbersome, back-breaking boxes that complicate transport and load-ins. The Markbass MB58R CMD 151 P completely rewrites this script. Representing the cutting edge of modern amplification design, this eco-friendly powerhouse pairs a 15-inch classic ceramic speaker with a revolutionary, ultra-lightweight cabinet material. Delivering a massive stage presence while weighing an astonishingly low 14.6 kg (32.1 lbs), it offers the classic, throatier vintage bass thud you love without the physical strain.

The MB58R Evolution: Staggering Power-to-Weight Ratio

The defining breakthrough of the MB58R series is its innovative enclosure technology. Instead of traditional heavy plywood or MDF, Markbass employs a high-tech, proprietary eco-friendly material that slashes cabinet weight dramatically without sacrificing structural integrity or acoustic resonance. Driven by a high-efficiency solid-state preamp and a proprietary power module, the MB58R CMD 151 P delivers 150 watts of clean RMS power completely on its own, expanding to a full 300 watts when connected to an external cabinet. Weighing a mere 14.6 kg, this full-sized 15-inch combo can be easily loaded into a car trunk or carried up venue stairs with a single hand, making it a dream asset for active freelance and touring gigging musicians.

Classic Ceramic Warmth and Immediate Low-End Bloom

While many modern portable amplifiers rely on neodymium magnets, the "P" (Pulse) series features a premium 15-inch Markbass Classic Ceramic speaker. Ceramic drivers are celebrated worldwide for their unique acoustic footprint—offering a slightly more compressed, vintage-flavored mid-range and a fat, organic low-frequency bloom that feels deeply pocketed and authoritative. This massive woofer is paired with a newly designed custom piezo tweeter that extends high-frequency tracking up to 18 kHz. This ensures your string attack, pick noise, and percussive slap accents retain a crisp, glassy clarity that balances the immense low-frequency weight.

Uncompromised Tone-Shaping with Signature Markbass Filters

To give you complete control over your sound stage across different acoustic spaces, the combo features a highly responsive 4-band active equalizer (Low, Mid-Low, Mid-High, High). Alongside the precision EQ controls, the front panel layout integrates Markbass's legendary, signature analog tone filters:

• VLE (Vintage Loudspeaker Emulator): A specialized low-pass filter that gradually rolls off high frequencies (ranging from 250 Hz to 20 kHz) to beautifully mimic the dark, round, organic character of old-school passive cabinets—the ultimate preset for classic Motown, reggae, and blues.
• VPF (Variable Preshape Filter): An advanced contour filter that cuts mid-range frequencies centered around 380 Hz while boosting low-end body and high-end sparkle, instantly creating a pristine, contoured profile perfect for modern, snappy slap-and-pop techniques.

Rear-Ported Bass Reflex and Pro Studio Routing Suite

The cabinet features an optimized rear-ported bass reflex system that utilizes nearby walls to extend its sub-bass projection, filling small to mid-sized rooms with deep, enveloping low frequencies. For the professional recording engineer or live front-of-house sound technician, the amp includes a studio-grade Balanced XLR Direct Out driven by an independent level control dial. Complete with handy pre/post EQ and ground lift toggle switches, it eliminates hum and guarantees a flawless, noise-free feed straight to the mixing console.

Key Features at a Glance

• Revolutionary Eco-Friendly Cabinet: Advanced structural materials bring the total weight of a full 15" combo down to an unbelievable 14.6 kg.
• 15" Markbass Classic Ceramic Speaker: Delivers deep, organic, old-school low-end warmth with a smooth, musical mid-range punch.
• New Piezo Tweeter: Captures high-frequency detail and transient attack to ensure absolute note articulation.
• Signature VLE and VPF Filters: Offers instant access to retro, vintage warmth or modern, contoured slap-and-pop profiles.
• Modular Output Power: Operates at a solid 150W standalone, ramping up to 300W RMS when paired with an external 8-Ohm extension cabinet.
• Made in Italy: Hand-built using premier components and strict quality control tests to guarantee road-ready reliability.

Common Uses and Rig Configurations

The Markbass MB58R CMD 151 P is an exceptional asset for blues, classic rock, soul, R&B, jazz, and reggae bassists who prefer the deep, physical response of a 15-inch speaker format. It serves as an excellent standalone companion for upright contrabasses, hollow-body basses, and passive vintage instruments. Use it as a lightweight grab-and-go unit for rehearsals, theater pit gigs, and club sets, or pair it with an external extension cabinet (like an MB58R 151 P) to double your speaker surface area and unleash the full 300-watt output for larger stages.

Technical Specifications

• Output Power: 300W RMS @ 4 Ohms / 150W RMS @ 8 Ohms
• Speaker Configuration: 1 x 15" Markbass Classic Ceramic Woofer
• Tweeter Type: New Piezo Tweeter
• Speaker Power Handling: 300W RMS (AES Standard)
• Frequency Response: 40 Hz to 18 kHz
• Crossover Frequency: 3.5 kHz
• Sensitivity: 100 dB SPL
• Controls: Gain, 4-Band EQ, VLE Filter, VPF Filter, Master Volume, Line Out Level Control
• Inputs: 1/4" Instrument Input, 1/4" Effect Return
• Outputs: Balanced XLR Line Out, 1/4" Tuner Out, 1/4" Effect Send, speakON Combo External Speaker Output
• Cabinet Porting: Rear Bass Reflex Ported
• Dimensions (W x H x D): 45 cm x 57.6 cm x 47.1 cm (17.72" x 22.68" x 18.54")
• Weight: 14.6 kg (32.1 lbs)