The Ashdown Rootmaster RM-500-EVO II Bass Guitar Amplifier Head is a versatile unit that is perfect for working bassists who desire power in a compact form. Easy to use and boasting innovative features that allow you to get the job done with minimal effort, the RM-500 II is a force to be reckoned with.
The Rootmaster RM-500 EVO II is a mere 86 x 314 x 235 mm and 2.6kg in weight, making it as travel-friendly as they come. However, despite its diminutive size, the RM-500 EVO II delivers a clear 500-Watt output with a range of controls that allows you to attenuate the intuitive EQ, Compression, and Drive sections. The upgraded power section also features a useful mute button, which changes the classic Ashdown Engineering VU meter from orange to blue - perfect for setting the mood between sets.
Control at your fingertips
The input section features Passive and Active inputs to suit both passive and active-powered bass pickups. Once you've adjusted the input signal level to suit your instrument and rig setup, there are a plethora of knobs and dials at your disposal.
The five-band EQ pots allow you to sculpt your sound with incredible precision, with a useful Shape switch that instantly dials in a classic Ashdown tone setting, borrowed directly from the outstanding Ashdown ABM series.
The single-knob Compression control is a stroke of genius, allowing warmth and depth to be added to your tone with ease. Give your bass the power and presence it deserves to fill out any mix beautifully.
The Overdrive and Sub controls allow you to inject tube-emulated overdrive into your bass sound, pushing it into a delightfully warm zone and beyond into aggressive distortion. Filling out the low-end is the Sub-Harmonic generator, which allows you to dial in a robust sub-octave that - like the overdrive - is footswitchable and can be kicked in and out whenever you wish.
The Ashdown Rootmaster RM-500-EVO II Bass Guitar Amplifier Head is equipped with a hot of connectivity options that are perfect for both live and studio work. For those who wish to integrate outboard effects units, there are dedicated FX Send and Return jacks along the rear panel. The DI output enables direct injection into a PA mixer or recording console, whilst the line input allows you to jam along with your favourite tunes.
The pair of combined jack/Speakon connection with minimum 4 Ohm load allows you to pair up with a range of Ashdown's Rootmaster EVO cabs.
As we've come to expect from the team at Ashdown, the Rootmaster RM-500-EVO II is built for the road. The tough chassis provides a safe and secure home for all internal components. Everything feels robust, the dials are reassuringly tactile, and thoughtfully applied feet prevent slippage or sliding around on stage.
Manufacturer Ashdown Model Rootmaster RM-500-EVO II Bass Guitar Amplifier Head Dimensions (H x W x D) 86 x 314 x 235 mm Weight 2.6kg Power Output 500 Watts Power Requirement 115-230 Volts Speaker Outputs 2 x Speakon outputs Frequency Response -3dB @ 17Hz und 30KHz High Instrument Input Impedance 3.9m Ohms, input range 150mV Low Instrument Input Impedance 10k Ohms, input range 300mV - 40V p-p Line Input Impedance 22k Ohms, input level 0dBu nominal DI Output 600 Ohm balanced, Level 0dBu nominal Tuner Output Impedance 22k Ohms, Level 0dBu nominal Impedance Minimum 4 Ohms Signal to noise Better than 80dB (EQ flat) EQ Bass +/-15dB @ 100Hz - Lo Mid +/-15dB @ 220Hz - Middle +/-15dB @ 660Hz - Hi Mid +/-15dB @ 1.6kHz - Treble +/-15dB @ 7kHz shelving Deep + Effects Send Impedance 22k Ohm, Level 0dBu nominal Effects Return Impedance 22k Ohms, Input Level 0dBu Nominal Distortion Less than 0.5% THD
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