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Soldano ASTRO-20 Tube Amplifier | Demo and Overview with Justus Westplay button

Soldano ASTRO-20 Tube Amplifier | Demo and Overview with Justus West

SOLDANO introducing the ASTRO 20 - SOLDANO legacy meets modern technologyplay button

SOLDANO introducing the ASTRO 20 - SOLDANO legacy meets modern technology

The full ASTRO 20 story: Mike Soldano, Ryan "Fluff" Bruce and Evan Foster talk detailsplay button

The full ASTRO 20 story: Mike Soldano, Ryan "Fluff" Bruce and Evan Foster talk details


collapse expand iconDescription

The sky’s the limit with the Soldano Astro-20, a three-channel, four-Galaxy 1x12 combo delivering all-tube tone that’s out of this world. This American-made, 20-watt combo features a Clean and two Overdrive channels, powered by two 6V6 power tubes and four 12AX7 preamp tubes. Along with six DSP-powered IR slots to choose from, the Astro-20 is packed with four distinct Galaxies, giving you even more style-specific tones to explore. Whether you’re looking to stay grounded with traditional sounds or blast off into uncharted sonic territories, this combo is perfect for guitarists who want classic tube tone with modern flexibility. Equipped with a Celestion G12M Greenback speaker, the Astro-20 is an ideal standalone option for live performance, rehearsal and studio recording.

Soldano Astro-20 Combo Amp Front

Galaxies of Tone

Along with three channels of all-tube awesomeness, the Astro-20 is loaded with four selectable Galaxies to add even more flavor to your riffs. The Green Galaxy is featured on the Clean channel and ranges from crystal clean to slightly pushed crunch. Blue, Purple and Red offer increasing levels of overdriven breakup from one to the next and can each be independently assigned to the Overdrive channels. They can then be further manipulated with separate Volume and Gain settings on each, allowing you to continue expanding your musical universe with virtually endless combinations of colorful soundscapes.

Soldano Astro-20 Combo Amp Control Section

Assignable Impulse Responses

IR cab simulation is an essential tool for today’s guitarist, and the Astro-20 offers six to choose from. Each expertly recorded IR can be assigned to a channel or Galaxy independently, ensuring you get the ideal tone and speaker response you’re looking for, whether it’s onstage, recording or utilizing the headphone output for silent practice. You can also add and manage your own IRs using the included Soldano Editor software. The Soldano Editor Software features an intuitive user interface, allowing you to easily assign Galaxies to the Overdrive channels, select different IRs for all three channels, load and organize your IR library, and save up to 128 MIDI presets.

Soldano Astro-20 Combo Amp Celestion Greenback Speaker

Sensational Celestion Sound

The Astro-20 combo comes loaded with the legendary Celestion G12M Greenback, made in England. The broad mid-range attack and well-controlled low end of this 12" speaker allows you to explore every tonal nuance in each of the four onboard Galaxies.

Soldano Astro-20 Combo Amp Virtual Cab Menu

Classic All-Tube Tone

Even with versatile onboard controls, the Astro-20 features inimitable analog charm with two 6V6 power tubes and four 12AX7 preamp tubes. The warm, rich sound—synonymous with rock, country and blues—is instantly recognizable. But with tons of tone-tweaking features, this 20-watt combo gives you everything you need to sculpt that classic tone into something entirely unique. The Astro-20 is even suitable for cab-less operation, allowing users to safely go to front of house, a recording device or headphones without connecting to a speaker cabinet.

The sonic possibilities are virtually endless with the Astro-20 combo amp. Four distinct Galaxies across three channels provide nearly unlimited customization options, so you can find the perfect tube tone you didn’t even know you’d been looking for. With Soldano Editor software, convenient STAR Display and a four-button MIDI footswitch included, the Astro-20 lets you save and access any combination of channels, Galaxies and onboard IRs with ease.

collapse expand iconFeatures

  • 20W all-tube guitar amplifier
  • Cascading-gain preamp design
  • Ultratransparent series FX loop
  • XLR Balanced Output with Ground Lift
  • Cab-less operation
  • Headphone Output with dedicated VOLUME control
  • MIDI programmable (up to 128 presets)
  • MIDI/Footswitch Input
  • 1x16 ohm, 2 x 8 ohm (parallel) and 2x4 ohm (parallel) speaker connectors
  • USB Software Editor
  • Includes a 6’ USB cable
  • Limited 5-Year Warranty
  • Tubes
    • 2 x 6V6
    • 4 x 12AX7
    • 3 Independent Channels
    • VOLUME, PRESENCE and 3-position DEPTH switch
    Clean Channel–the Green Galaxy
    • VOLUME, TONE and a 3-way BRIGHT switch
    • Ranges from crystal clean to pushed crunchy tones
    Overdrive Channels
    • Independent GAIN and VOLUME per channel
    • Shared BASS, MIDDLE and TREBLE controls
    • Overdrive 1 and Overdrive 2 can be independently programmed to the BLUE, PURPLE or RED galaxies
    Overdrive Galaxies
    • BLUE Galaxy ranges from bluesy cleans to fat and sparkly hard rock tones
    • PURPLE Galaxy ranges from hard rock to punchy high gain drive with a tighter response
    • RED Galaxy with the famous sought after SOLDANO lead overdrive tone
    • Low Latency IR Cabinet simulation (bypassable)
    6 IR presets, individually programmable per channel–these are the planets around the star
    • Load your own IRs via the Software Editor
    Included 4-button programmable MIDI footswitch pedal
    • 7-Pin MIDI Cable Included

    collapse expand iconSpecs

    • Tubes: 2 x 6V6, 4 x 12AX7
    • Dimensions (WxDxH): 20.75" x 11.75" x 20"
    • Weight: 48 lb.

    collapse expand iconWarranty

    Limited lifetime warranty on SLO100, Surf Box, X99, and X88R.
    One year warranty on all other amps. No warranty on tubes or transformers.