SKU: 55501900708

Ashdown RM500-EVO-III Rootmaster 500 EVO III Bass Head

Sale price$494.55 Regular price$549.50
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Ships within 48 hours · Estimated delivery Sep 2 - Sep 7

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Description

Ashdown RM500-EVO-III Rootmaster 500 EVO III Bass HeadRepresenting an elevation of Ashdown's acclaimed EVO series, the Rootmaster 500 EVO III equips bassists with a satisfying combination of muscular power, sonic versatility, and convenient portability. This brawny bass amp head delivers 500 watts of five star Ashdown tone that you can sculpt and mold to ear grabbing perfection with a responsive 5 band EQ. The RM 500 includes Ashdown's famous sub harmonic generator as well as a built in compressor,

Representing an elevation of Ashdown's acclaimed EVO series, the Rootmaster 500 EVO III equips bassists with a satisfying combination of muscular power, sonic versatility, and convenient portability. This brawny bass amp head delivers 500 watts of five-star Ashdown tone that you can sculpt and mold to ear-grabbing perfection with a responsive 5-band EQ. The RM-500 includes Ashdown's famous sub-harmonic generator as well as a built-in compressor, yielding thunderous, chest-thumping low end for days. You also get a valve-emulated drive for adding a hint of grit and warmth to your sound. The RM-500 boasts a handy cab sim DI output, along with a balanced, post-EQ XLR output option with reliable Neutrik connectors. The Ashdown RM-500 Rootmaster EVO III offers bassists exceptional amplification with lightweight portability and zero sonic compromises.

500 watts of premium Ashdown tone

Armed with a formidable 500 watts of output, the RM-500 EVO III delivers Ashdown's venerated signature tone, power, and reliability — all in a compact, lightweight bass amp head. The RM-500 puts you firmly in the driver's seat, thanks to its responsive 5-band EQ, enabling you to fine-tune your sound with pinpoint precision.

Bursting with tone-twisting features

Bassists are meticulous about tone, and given the level of onboard control available on the Rootmaster 500 EVO III, it's clear that Ashdown gets us. It all starts with Ashdown's popular sub-harmonic generator, a tried-and-tested gem that's guaranteed to shake the room and jiggle the rafters. The RM-500's built-in compressor ensures a full, consistent sound with truckloads of low-end punch. Need extra grit and warmth? If so, the RM-500's valve-emulated drive is on hand to accommodate you.

Ample DI options

The RM-500 EVO III provides bass players with exacting control over their onstage and front-of-house sound. For starters, it includes a balanced, post-EQ XLR output. Optionally, you can activate the RM-500's cab sim DI output, which includes customizable filters based on Ashdown's acclaimed ABM cabinets, along with options for a ported/sealed enclosure, speaker size, and horn.

Features

  • 500W bass amplifier head with a compact, lightweight design
  • Responsive 5-band EQ allows you to sculpt and mold your tone
  • Ashdown's popular sub-harmonic generator is guaranteed to shake the room and jiggle the rafters
  • Built-in compressor ensures a full, consistent sound with truckloads of low-end punch
  • Valve-emulated drive adds a hint of grit and warmth to your sound
  • Balanced, post-EQ XLR output is primed for front-of-house mixing
  • Cab sim DI output with options for a ported/sealed enclosure, speaker size, and horn
  • Effects loop makes integrating your pedalboard easy
  • Robust Neutrik connectors

Specifications

  • Type:Solid State
  • Number of Channels:Single channel
  • Total Power:500W
  • Effects:Valve-emulated Drive, Sub Harmonic Generator
  • Compression:Yes
  • EQ:5-band EQ, Shape switch
  • Amp Modeling:Speaker Sim
  • Inputs:1 x 1/4" (instrument), 1 x 1/4" (line)
  • Outputs:2 x SpeakON (4 ohms), 1 x XLR (Cab Sim DI out)
  • Headphones:1 x 1/4"
  • Effects Loop:Yes
  • Footswitch I/O:1 x 1/4" (drive, subharmonic generator)
  • Footswitch Included:No
  • Cooling System:Internal Fan, Rear/Side Air Vents
  • Power Source:Standard IEC power supply
  • Manufacturer Part Number:RM-500-EVO III
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 55501900708

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J. Jenkins
Carnegie, US
★★★★★ 5
Perfect Fit for Full Cooling System Overhaul on BMW 330xi
I ordered this Engine Coolant Hose (part #11537545890) for my 2006 BMW 330xi as part of a comprehensive cooling system overhaul. Along with this hose, I had my mechanic replace the thermostat, water pump, radiator, expansion tank, and all other related hoses. This hose fit exactly as expected—no issues during installation. It’s been three weeks since the job was completed, and everything is performing flawlessly. No leaks, no warning lights, and the engine temperature remains stable under all driving conditions. Although this is not a genuine OEM part, the quality appears solid and it matched up perfectly with the original in terms of length, shape, and connector alignment. For anyone looking to refresh their aging BMW’s cooling system, this hose is a reliable and cost-effective option. Just be sure to verify the part number for compatibility before purchasing. Highly recommended if you’re doing preventive maintenance or replacing a failed hose as part of a larger cooling system repair.
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Reviewed in the United States on August 3, 2025
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Verified Purchase
E. E. Saulsberry
Birmingham, US
★★★★★ 5
Fit perfectly
Style: One Piece
Pops right in. Perfect fit and undistinguishable from the original.
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Reviewed in the United States on May 5, 2026
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Green Beacon
Houston, US
★★★★★ 5
Great product!
Style: Two Pieces
These were a perfect fit for my MB and very easy to install. Great value for the money. They should last given the way they were built.
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Reviewed in the United States on November 14, 2025
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Phong Nguyen
Charlottesville, US
★★★★★ 5
Work good
Style: One Piece
Fit and work perfectly.
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Reviewed in the United States on April 16, 2026
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THOMAS M. PERINA
Alexandria, US
★★★★★ 5
WHAT A MARVELOUS AIR FILTER.
Style: Two Pieces
SO FAR THESE FILTERS ARE MARVELOUS. THESE FILTERS ARE WELL MADE ESPECIALLY FOR THE PRICE. LOOKS LIKE A SIGNIFICANT $$$$ SAVINGS. TMP.
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Reviewed in the United States on March 9, 2026

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