Ashdown - UK RBM 800 Rootmaster
749,17 €
excl VAT
Resupply
Arrival expected on Jun 30, 2026
Guarantee 3
years
Amplifier Heads for Bass
The Ashdown UK RBM 800 is the perfect choice for bassists: this UK-designed 800W amp head combines controlled power with acoustic versatility. Generate deep subharmonics, sculpt your tone with 5-band EQ and enjoy built-in overdrive. Lightweight and robust, it's as at home on stage as it is in the studio.
ARTICLE N° 117888
Presentation
If you're looking for a bass amp head that meets both your technical requirements and your creativity, the Ashdown UK-RBM-800 is a serious contender. Made in the UK, it delivers 800 watts of precise power, capable of adapting to a minimum impedance of 4 ohms. Its lightweight chassis, weighing just 2.5 kg, makes it a discreet and efficient touring companion.
Its preamp is a small acoustic laboratory. The five-band equalisation, with its independent controls, lets you fine-tune your grain with precision. The Middle section is divided into Lo and Hi for even more intuitive adjustment. There's also a subharmonic generator to thicken your lines without losing definition, and a warm, integrated overdrive that's perfect for adding bite.
Effects and output management are thoughtfully designed for the active musician. The integrated effects loop lets you insert your favourite pedals into the signal in the best possible way. The balanced DI output, equipped with Ashdown analogue cabinet simulation, delivers sound ready for recording or Front of House PA. A headphone output with the same simulation lets you rehearse in silence without sacrificing the feel of a real amp.
Whether you're a touring bassist in need of reliability, a studio musician in search of nuance, or a songwriter exploring new textures, the Ashdown Rootmaster RBM-800 serves your ambitions.
Its preamp is a small acoustic laboratory. The five-band equalisation, with its independent controls, lets you fine-tune your grain with precision. The Middle section is divided into Lo and Hi for even more intuitive adjustment. There's also a subharmonic generator to thicken your lines without losing definition, and a warm, integrated overdrive that's perfect for adding bite.
Effects and output management are thoughtfully designed for the active musician. The integrated effects loop lets you insert your favourite pedals into the signal in the best possible way. The balanced DI output, equipped with Ashdown analogue cabinet simulation, delivers sound ready for recording or Front of House PA. A headphone output with the same simulation lets you rehearse in silence without sacrificing the feel of a real amp.
Whether you're a touring bassist in need of reliability, a studio musician in search of nuance, or a songwriter exploring new textures, the Ashdown Rootmaster RBM-800 serves your ambitions.
Features
DI output
Yes
Headphone output
Yes
Effects
Yes
External effects loop
Yes
RMS power (W)
800
Speaker output
Yes
Amp modeling
Yes
Frequency setting
5 bandes
Weight
2,5 kg
Frequency response, low limit
22 Hz
Frequency response, upper limit
25 kHz
Country of production
United Kingdom
Connectors
Jack female Mono, Jack female Stéréo, Speakon female
Other features
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Ashdown UK RBM 800 Rootmaster
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800 W bass amp head
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800 W output power
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Voltage 115-230 V
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Minimum impedance 4 ohms
-
Connections / Inputs/Outputs :
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Speaker outputs 2 Speakon/Jack
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High impedance instrument input
-
High input impedance 3.9 MΩ
-
High input level 150 mV-20 V
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Low impedance instrument input
-
Low input impedance 10 kΩ
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Low input level 300 mV-405 V
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Line input 22 kΩ
-
Line level 0 dBu
-
Balanced DI output
-
DI impedance 420 Ω
-
DI level 0 dBu
-
Send effects 22 kΩ
-
Return effects 22 kΩ
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Integrated effects loop
-
Headphone output
-
Analogue speaker simulation
-
Audio performance :
-
Frequency response 22 Hz-25 kHz
-
Signal-to-noise ratio >80 dB
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Distortion <0.5% THD
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Equalization :
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Bass ±15 dB 100 Hz
-
Lo Mid ±15 dB 340 Hz
-
Middle ±15 dB 660 Hz
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Hi Mid ±15 dB 1.6 kHz
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Treble ±15 dB 7 kHz
-
Functions :
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Sub-Harmonic Generator
-
Integrated compressor
-
Integrated overdrive
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Ashdown analogue DI
-
Manufacture / Design :
-
Manufactured in the UK
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Ice Blue finish
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Lightweight chassis
-
Series: Rootmaster
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Dimensions: 311 × 89 × 235 mm
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Weight: 2.5 kg
