Ashdown RB-800 Rex Brown Signature 800W Bass Head – UK Made – Artist Series
Ashdown RB-800 Rex Brown Signature 800W Bass Head – UK Made – Artist Series
Ashdown RB-800 Rex Brown Signature 800W Bass Head – UK Made – Artist Series
Ashdown RB-800 Rex Brown Signature 800W Bass Head – UK Made – Artist Series
Ashdown RB-800 Rex Brown Signature 800W Bass Head – UK Made – Artist Series
Ashdown RB-800 Rex Brown Signature 800W Bass Head – UK Made – Artist Series
Ashdown RB-800 Rex Brown Signature 800W Bass Head – UK Made – Artist Series
Ashdown RB-800 Rex Brown Signature 800W Bass Head – UK Made – Artist Series
Ashdown RB-800 Rex Brown Signature 800W Bass Head – UK Made – Artist Series
Ashdown RB-800 Rex Brown Signature 800W Bass Head – UK Made – Artist Series
Ashdown RB-800 Rex Brown Signature 800W Bass Head – UK Made – Artist Series
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Ashdown RB-800 Rex Brown Signature 800W Bass Head – UK Made – Artist Series
Ashdown RB-800 Rex Brown Signature 800W Bass Head – UK Made – Artist Series
Ashdown RB-800 Rex Brown Signature 800W Bass Head – UK Made – Artist Series
Ashdown RB-800 Rex Brown Signature 800W Bass Head – UK Made – Artist Series
Ashdown RB-800 Rex Brown Signature 800W Bass Head – UK Made – Artist Series
Ashdown RB-800 Rex Brown Signature 800W Bass Head – UK Made – Artist Series
Ashdown RB-800 Rex Brown Signature 800W Bass Head – UK Made – Artist Series
Ashdown RB-800 Rex Brown Signature 800W Bass Head – UK Made – Artist Series
Ashdown RB-800 Rex Brown Signature 800W Bass Head – UK Made – Artist Series
Ashdown RB-800 Rex Brown Signature 800W Bass Head – UK Made – Artist Series
Ashdown RB-800 Rex Brown Signature 800W Bass Head – UK Made – Artist Series

Ashdown RB-800 Rex Brown Signature 800W Bass Head – UK Made – Artist Series

Price
$1,399
In stock! Usually ships within 24 hours.
Lease-to-own available

Eligible customers can select Progressive Leasing at checkout and complete the application directly with Progressive. Progressive Leasing is a lease-to-own program, not a loan or traditional financing option.

Learn about Progressive Leasing

Pickup available at 1935 Friendship Drive

Usually ready in 5+ days

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Ashdown

Limited Artist Series Production – Availability Subject to Allocation.

Rex Brown Signature 800W Bass Head – UK Made

Developed in collaboration with Pantera's Rex Brown, the Ashdown RB-800 is an 800-watt, UK-made bass amp head built for power, grit, and precision. Built on the foundation of Ashdown's Rootmaster series, the RB-800 delivers deep tonal flexibility with a comprehensive 5-band EQ, Sub Harmonic Generator, smooth one-knob Compression control, and a dynamic Valve Emulated Drive. From tight, punchy cleans to aggressive overdriven growl, this amp captures the unmistakable character that defined Rex Brown's legendary tone.

The RB-800 also features an Analogue Cab Sim DI output, designed for modern silent stages and in-ear monitoring. With selectable enclosure types, speaker simulation options (10" or 15"), and horn control, players can dial in a front-of-house-ready tone with precision. Lightweight yet rugged, globally voltage adaptable, and engineered for reliability, the RB-800 is a road-ready professional bass head built for serious players.

800 Watts of UK-Built Power

The RB-800 delivers 800 watts of pure bass power through two Neutrik Speakon/Jack outputs, providing massive headroom and punch for any performance environment. The minimum 4-ohm impedance allows flexible cabinet configurations, while the frequency response of –3dB @ 22Hz – 25kHz ensures full-range clarity from deep sub-bass to articulate high-end presence. Whether you're driving a single 8x10 cabinet or multiple 4x10 stacks, the RB-800 provides the power and clarity to cut through any mix with authority.

5-Band EQ & Tonal Flexibility

The 5-band EQ with ±15dB control provides precise tonal shaping across the entire frequency spectrum. Dial in everything from deep sub-bass to cutting high-end presence, with the Sub Harmonic Generator adding earth-shaking low-end extension for modern bass tones. The one-knob compression control provides dynamic control without complexity, while the variable Valve Emulated Drive adds warmth and harmonic richness that captures Rex Brown's signature aggressive tone.

Analogue Cab Sim DI Output

The Analogue Cab Sim DI output is designed for modern silent stages and in-ear monitoring, providing a front-of-house-ready tone with selectable enclosure types, speaker simulation options (10" or 15"), and horn control. The balanced 420Ω DI output delivers 0dBu nominal level for clean signal routing to FOH systems and recording interfaces, making the RB-800 equally capable for live performance and studio work.

Lightweight Touring Design

At just 2.5 kg (5.5 lbs), the RB-800 is one of the lightest professional bass heads available, making it ideal for touring musicians who need maximum power without the weight. The globally voltage adaptable design (115–230 Volts) ensures reliable performance anywhere in the world, while the rugged UK-built construction provides the reliability that Ashdown is known for. This is a bass head built for the road, designed to deliver consistent performance night after night.

Key Features

  • 800 Watts of UK-Built Power – Professional output for any stage
  • 5-Band EQ with ±15dB Control – Precise tonal shaping across full frequency spectrum
  • Sub Harmonic Generator – Extended low-end for modern bass tones
  • One-Knob Compression – Simple, effective dynamic control
  • Variable Valve Emulated Drive – Warmth and harmonic richness
  • Analogue Cab Sim DI (XLR) – Front-of-house-ready tone with speaker simulation
  • 2 x Neutrik Speakon/Jack Outputs – Flexible cabinet configuration
  • Lightweight Touring Design – Just 2.5 kg (5.5 lbs)
  • Global Voltage Adaptable – 115–230 Volts for worldwide use
  • Artist Series Pedigree – Designed with Rex Brown of Pantera

Who It's For

The Ashdown RB-800 is ideal for professional touring bassists who need lightweight power and reliability, metal and rock players seeking Rex Brown's signature aggressive tone, studio musicians requiring versatile tonal shaping and cab sim DI, modern bassists who need silent stage capability with in-ear monitoring, Pantera fans seeking Rex Brown's legendary sound, and any bassist ready to invest in a UK-made Artist Series amplifier with professional-grade features.

Complete Specifications

  • Brand: Ashdown
  • Series: Artist Series
  • Model: RB-800 (Rex Brown Signature)
  • SKU: MAS UK-RB-800
  • Power Output: 800 Watts
  • Power Requirements: 115–230 Volts
  • Speaker Outputs: 2 x Neutrik Speakon/Jack
  • Frequency Response: –3dB @ 22Hz – 25kHz
  • Impedance: Minimum 4 Ohms
  • DI Output: 420Ω balanced, Level 0dBu nominal
  • Dimensions (H x W x D): 89mm x 311mm x 235mm
  • Shipping Dimensions: 17" x 14" x 7"
  • Weight: 2.5 kg (5.5 lbs)
  • Made: UK
  • Condition: New

Why Buy From ECG Music?

As an authorized Ashdown dealer, every RB-800 we ship is professionally inspected before shipment and ready to perform. We offer fast nationwide shipping, knowledgeable customer support available by phone or email, and decades of experience helping musicians build the perfect bass rig. When you're ready to invest in a professional Artist Series bass head with UK craftsmanship and Rex Brown's signature tone, we're here to help.

Questions about the Ashdown RB-800? Call us or send an email—we're here to help you find the perfect bass amplifier.

Specs
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