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Peavey Bass Mark III Series 400BH

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Page last updated May 13, 2026

Pricing and availability

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Price

Average Price: $399

Standard/Professional

$200

$801+

Price Tier

In the Bass Amplifier Heads category, Peavey Bass Mark III Series 400BH is priced in the Standard/Professional range. This is quality gear at a fair price point, suitable for beginners, hobbyists, and pros alike.

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Standard

High-end

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Description

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Discover the Peavey Bass Mark III Series 400BH, a powerhouse in the world of bass amplification that stands out for its reliability and robust performance. This bass amplifier head is designed for both seasoned musicians and aspiring bassists looking to make an impact on stage. With 210 watts of power at your disposal, it delivers a rich, full-bodied tone that can handle a wide range of playing styles, from the subtle nuances of jazz to the pounding rhythms of rock.

The Peavey Bass Mark III Series 400BH features a solid-state design known for its durability and consistent output, making it a dependable choice for both practice sessions and live performances. A built-in compressor ensures your sound remains smooth and controlled, even at higher volumes. The three-band EQ with bright and punch switches allows for precise tonal shaping, giving you the flexibility to adapt to different genres and venues with ease. The graphic equalizer is an added bonus, enabling further customization of your sound to suit your unique playing style.

Whether you're jamming in the garage or performing on stage, the Peavey Bass Mark III Series 400BH offers the versatility and power you need to stand out. Its intuitive controls and rugged construction make it a staple in any bassist's gear collection.

Key Features:

210 watts of solid-state power
Built-in compressor for smooth dynamics
Three-band EQ with bright and punch switches
Graphic equalizer for enhanced sound customization
Reliable and durable design suitable for various playing environments

Product specs

Brand	Peavey
Model	Bass Mark III Series 400BH 300-Watt Bass Head
Finish	Black
Year	1970s
Made In	United States
Categories	Bass Heads
Color Family	Black
Electronics	Solid State
Impedance	4 ohms
Number of Channels	2 Channels
Number of Inputs	4 Inputs
Output Power (Watts)	300
Power Tube Type	None

FAQs

What is the output power of the Peavey Bass Mark III Series 400BH?: The Peavey Bass Mark III Series 400BH provides 300 watts of output power, making it suitable for a variety of performance settings, from rehearsals to larger gigs.
How many channels does the Peavey Bass Mark III Series 400BH have?: This bass amplifier head features 2 channels, allowing for versatile sound shaping and the ability to switch between different tonal settings.
What type of electronics does the Peavey Bass Mark III Series 400BH use?: The Peavey Bass Mark III Series 400BH utilizes solid-state electronics, known for their reliability and clean sound reproduction.
How many inputs are available on the Peavey Bass Mark III Series 400BH?: The Peavey Bass Mark III Series 400BH is equipped with 4 inputs, providing flexibility for connecting multiple instruments or additional audio sources.
What is the impedance of the Peavey Bass Mark III Series 400BH?: The Peavey Bass Mark III Series 400BH has an impedance of 4 ohms, which is important to consider when matching it with compatible speaker cabinets.

Reviews

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Owner Insights

We analyzed real musician discussions from forums and Reddit to find what players love, question, and tweak about Peavey Bass Mark III Series 400BH.

Features and functionality

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It's confirmed that the Peavey 400BH head can safely power two 8-ohm cabs simultaneously, achieving a 4-ohm load when wired in parallel.
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The graphic EQ allows pushing mids significantly, providing headroom to crank the gain without causing low-end distortion.
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Peavey solid-state power amps are often interchangeable across guitar, bass, and PA gear, promoting versatility in repairs and upgrades.
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Setup and maintenance

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Owners suggest the electrolytic and filter capacitors may be near end-of-life but aren't as stressed as in tube amps, posing less immediate concern.
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Rebuilding a 400BH power section can cost around $300, but replacement capacitors are readily available and not expensive for those comfortable with DIY repairs.
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User experience

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Even with a single 8-ohm cab, users report the amp delivers ample volume for typical rehearsal spaces, unless exceptionally large.
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Users report that with a 4x10 cab, the amp rarely requires volume above 12 o'clock in a garage rehearsal, ensuring it cuts through the mix effectively.
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Comparisons

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A Peavey 4x12 cab is noted for its exceptional loudness when paired with this head, indicating compatibility with various cab configurations.
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A user prefers the Mark IV's heavy distortion over other models like the Ampeg SVT-3 for aggressive music, though it lacks the high-end sharpness for clean tones.
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Use cases and applications

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A Music Man 4x12 bass cab is recommended for pairing with vintage solid-state amps like this Peavey, offering a killer sound.
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The Mark IV head remains loud even on stages for ~400 people, though it distorts at higher volumes, which can suit heavier music genres.
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Despite aging components, the modular system design allows for easy swapping and experimentation, appealing to hands-on users seeking to maintain vintage gear.
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