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Average Price: $625
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$200
$801+
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Based on price data from 2 merchants for "Ashdown Engineering RM-500 EVO II Rootmaster 500-Watt Bass Amp Head". Prices shown reflect NEW condition. Tracking began Apr 2, 2026.
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Description
Step into a world of tonal excellence with the Ashdown RM-500 EVO II Rootmaster 500-Watt Bass Amp Head, a true marvel for bass enthusiasts who crave power without the bulk. Weighing a mere 5.7 lbs but packing a mighty 500 watts, this amplifier redefines portability and performance. Designed for both stage and practice, the on-board headphone preamp ensures your silent sessions are as immersive as your live gigs.
Whether you're playing a passive or active bass, the dual input jacks guarantee seamless connectivity, while the iconic Ashdown VU meter helps you dial in the perfect signal level. Sculpt your sound with precision using the 5-band EQ and enhance it further with the one-knob compressor for a fuller, richer tone. Need more edge? The drive control offers a luscious valve-emulated overdrive, and the sub-harmonic generator injects earth-shaking depth when you need it most.
The intuitive layout features a matte anodized alloy front panel, minimizing reflections and ensuring that your settings are easy to read under bright stage lights. Mute your sound with a simple button press, and watch the VU meter shift from orange to a calming blue, setting the mood between sets.
Connection options abound with send and return sockets, a DI output, and a line input, making it easy to integrate with your favorite pedals and multi-effects. The combined Jack/Speakon socket offers versatile cab pairing, making the RM-500 EVO II a stellar companion for any bassist.
Key Features:
- 500 watts of power in a lightweight 5.7 lb package
- On-board headphone preamp for silent practice
- Dual input jacks for passive and active basses
- 5-band EQ and one-knob compressor
- Valve-emulated overdrive and sub-harmonic generator
- Matte anodized alloy front panel for easy readability
- Mute button with color-changing VU meter
- Comprehensive connectivity including DI output and send/return sockets
Product specs
| Brand | Ashdown |
| Model | RM-500 EVO II Rootmaster 500-Watt Bass Amp Head |
| Year | 2018 - 2020 |
| Made In | China |
| Categories | Bass Heads |
| Electronics | Solid State |
| Impedance | 4 ohms |
| Number of Channels | 1 Channel |
| Number of Inputs | 2 Inputs |
| Output Power (Watts) | 500 |
| Power Tube Type | None |
| Reverb | None |
FAQs
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What kind of tone can I expect from the Ashdown RM-500 EVO II Rootmaster for rock music?
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The Ashdown RM-500 EVO II Rootmaster delivers a punchy and clear tone with a solid low-end, making it well-suited for rock music. Its EQ section allows for versatile tonal shaping, ensuring it can handle both aggressive and smooth bass lines.
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Is the Ashdown RM-500 EVO II Rootmaster 500-watt Bass Amp Head suitable for live performances?
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Yes, the Ashdown RM-500 EVO II, with its 500-watt output, is powerful enough for live performances, even in medium to large venues. Its robust build and reliable sound make it a great choice for gigging bassists.
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Does the Ashdown RM-500 EVO II work well with both passive and active bass guitars?
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Absolutely, the Ashdown RM-500 EVO II features two inputs catering to both passive and active basses, ensuring optimal signal handling and tone quality for any bass guitar type.
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How portable is the Ashdown RM-500 EVO II Rootmaster Bass Amp Head?
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The Ashdown RM-500 EVO II is designed to be lightweight and compact, making it easy to transport to rehearsals and gigs. Its manageable size does not compromise on power or performance.
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Does the Ashdown RM-500 EVO II handle effects pedals well?
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Yes, the Ashdown RM-500 EVO II is known for its compatibility with various effects pedals, maintaining clarity and tone integrity when used with pedalboards.
Videos
BassTheWorld.com
ASHDOWN ROOTMASTER RM-500-EVO II HEAD
Reviews
Owner Insights
We analyzed real musician discussions from forums and Reddit to find what players love, question, and tweak about Ashdown Engineering RM-500 EVO II Rootmaster 500-Watt Bass Amp Head.
Comparisons
Features and functionality
Use cases and applications
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The Ashdown RM-500 EVO II can be a reliable choice for backline gigs, known for easy adaptability to various sound settings.
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The RM500 EVO II is praised for delivering a solid rock/soul sound with reasonable volume, suitable for gigs ranging from small bars to large venues.
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A 4x10 cab suits smaller venues, while a combination with a 1x15 enhances performance in larger spaces, offering flexibility for different gig sizes.
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User experience
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Owners of the Aguilar Tone Hammer appreciate its durability, reporting no issues despite frequent travel and rough handling over multiple years.
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Owners have reported the RM500 EVO II as the least "Class D" sounding amp, providing a more traditional, robust tone compared to other Class D heads.
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After switching from a 4x10 to a 1x12 Barefaced cab, users appreciate the lightweight and clear sound, highlighting a potential future upgrade for frequent giggers.
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Setup and maintenance
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A fault in the DI output causing crackling was resolved directly by Ashdown, even out of warranty, highlighting their strong customer service.
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