Ashdown RM500-EVO-III Rootmaster 500 EVO III Bass Head
SKU: 55501900708

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

Sale price$494.55 Regular price$549.50
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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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4.2 ★★★★★
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Tonya
Charlottesville, US
★★★★★ 5
My dogs love these!
Pattern Name: Peanut Butter, Size: 6 Inch (Pack of 15)
It doesn’t matter if it’s a 4 inch or a 6 inch my dogs love these things. We keep them in stock all the time. It’s great for anxiety and their teeth and breath
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 26, 2026
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Verified Purchase
poodlegirl
Port Orchard, US
★★★★★ 5
My dog LOVES these!
Pattern Name: Peanut Butter, Size: 6 Inch (Pack of 15)
My two year old mini poodle loves these! Of course all dogs love peanut butter. And carrots! The only caution I take is to only let her eat half. Yes it is a wrestling match when making her retreat. LOL I find if my girl eats it all she is likely to have ugly bowel issue either later or first thing when she rises in the morning . I still buy them over and over but use with a plan in mind. I think they are medium hardness. My dog really needs something harder to engage for days. I do buy the hard Himalayan cheese on Amazon but she prefers her other options. Depending on your breed size and how much you like to clean up poo determines your personal plan for your fur baby.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 19, 2025
K
Verified Purchase
Kindle Customer
San Leandro, US
★★★★★ 1
Made my dog very sick!
My dog has been eating these for 3 years. He loves them and they help keep his teeth clean. I gave him one from the New bag I ordered. It looked a little lighter in color but I thought it was fine. That was this past Sunday. He only ate half of it and I thought that was odd. That night around 1am he threw up. Then had diarrhea later that morning. I thought maybe he ate something in the yard. Now Monday he stopped eating and had explosive diarrhea. Took him to vet on Tuesday morning. They did bloodwork, checked feces and had x ray done incase of a possible blockage. Finally got results on Thursday and 700.00 later. Doctor said he must of eaten something but can't say exactly what. He's doing better now with an antibiotic. The only thing he ate was that bully bone on Sunday. It was really scary because he was so sick. I will be throwing out these bones and try to find something safe for him to chew. This was a great product until they may have changed ingredients.
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Reviewed in the United States on June 29, 2025
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Verified Purchase
Skye and Ted
West Palm Beach, US
★★★★★ 5
The Best Flavor-Packed Toy to Stuff and Chew! 🐾
Flavor Name: REAL Bacon, Size: Medium
Hello, it’s Skye! I’m back with another very important product update. If you are a dog who loves a challenge and loves real bacon, you need to tell your humans to get you the Benebone Ring Durable Dog Chew Toy. Why this ring is my absolute favorite: The Ultimate Treat Bowl: My absolute favorite part about this ring is the hollow center. My humans stuff it full of yummy treats, freeze-dried raw bites, or a little dog-safe peanut butter, and it turns into the best puzzle bowl ever! I will happily spend hours licking and working to get every single crumb out. Tastes Like Real Bacon: Even after I clean out all the stuffed treats, the toy itself is infused with real, delicious bacon flavor. It doesn't smell like fake chemicals; it smells like the real deal, which makes my nose very happy. Super Durable for Heavy Chewing: I have sharp puppy teeth and I love to chomp, but this durable nylon ring is tough. The curved design makes it really easy for me to flip up with my paws and hold securely while I chew away. It keeps me completely occupied, exercises my brain, and satisfies my need to chew. Five paws up for the best stuffed treat ring ever! 🐶🥓
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Reviewed in the United States on May 24, 2026
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Verified Purchase
Jess Papineau
Phoenix, US
★★★★★ 5
Recommend
Flavor Name: REAL Bacon, Size: Small
This chew toy is great for aggressive chewers—it’s very durable and holds up much longer than most other toys we’ve tried. The ring shape makes it easy for dogs to grip and carry, and my dog was immediately interested in it, likely because of the real bacon flavor. It’s also a nice bonus that it’s made in the USA and doesn’t have a strong smell for humans. That said, it is very hard, so I’d recommend keeping an eye on your dog while they’re using it, especially if they’re an intense chewer. Over time, it does wear down and needs to be replaced once the edges get rough. Overall: a long-lasting, high-quality chew that keeps dogs occupied—just be mindful of the hardness and monitor for wear.
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Reviewed in the United States on March 25, 2026

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