Blackstar HT-20RH MKIII
Guitar Amp Head
Happy Birthday to us!
That's right, we are celebrating 18 years of Modern Musician this July, and we wanted to bring you in on the festivities.
From July 20th to midnight on August 3rd, 2026, we are offering massive savings across a huge range of products and categories, including some never seen before exclusive doorbuster pricing on both new and refurbished stock.
We are also partnering with our friends at Zip Money to offer you up to 24 Months Interest Free on purchases over $1000! Click here to learn more about that.
And as if that wasn't enough, we are giving away a $300 gift voucher to one lucky customer! How do I get in on that action, you ask? Simple! Just tag @modern_musician in a photo on Instagram containing any of the following:
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A picture of your favourite piece of gear you've bought from Modern Musician over the last 18 years.
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A picture of you wearing or using your favourite piece of Modern Musician merch.
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A picture of you in our store, either the current store or any of our previous locations.
Nice and easy right? No purchase necessary, just make sure you tag @modern_musician and you post it within the promo period and you'll be in the draw! And that's not all - three runners up will be decked out with some official Modern Musician merch!
So... what are you waiting for? Check out what's on sale here, score some huge deals, and get to tagging on Instagram!
Sale Terms & Conditions: Modern Musician 18th Birthday Sale runs from 00:01am on July 20th until 11:59pm on August 3, 2026. Promotional pricing applies to selected items only. No holds, lay-bys, deposits, backorders, rain checks or IOUs. No returns accepted for change of mind. All products subject to availability. Promotional pricing applies only to items in stock at our Hobart store. Once a product is sold out in store, advertised promotional pricing is no longer valid and will not be honoured.
Prize Draw Terms & Conditions: The Modern Musician 18th Birthday prize draw runs from 00:01am on July 20th until 23:59pm on August 3, 2026. Entries after that time will not be counted. One entry per customer. No purchase necessary to enter. Customer must tag @modern_musician in a post on Instagram within the promotional period to have their entry counted. Post must be a standard, static post, not a Story, in order to be eligible. Photograph must contain either a product purchased from Modern Musician in the past, a piece of Modern Musician merchandise, or the customer in the shop in order to be counted as a valid entry. Merchandise prize options and size variants are subject to availability. Prize draw valid only within Australia. Prize winner and runners up will be selected randomly on August 4th and notified either via email or through Instagram.
Please note: Clearance pricing runs until the end of the relevant promotional period or until stock on hand is exhausted, whichever occurs first. Clearance pricing is only valid for stock on hand at our Hobart store and not our interstate warehouse locations. We are unable to accept backorders and rain checks on clearance items. No returns accepted for change of mind.
Introducing the HT-20RH MK III
EL84s are at the tonal heart of the HT-20R MK III combo and head. We have used our decades of valve amp design experience to combine the response and character of this classic British valve with a carefully voiced preamp to create wonderfully lush valve tones. From pure boutique cleans, to mild overdrive that cleans up by backing off the guitar volume control, right up to saturated distortion, this amp does it all.
From chiming ‘boutique’ cleans, to on the edge crunch, or full-on distortion, HT-20 MK III deliver ‘the sound in your head’
FEATURES
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20 Watt head
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2x ECC83 preamp valves
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2x EL84 power amp valves
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2 Channels
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Footswitchable Voices for Clean and Overdrive
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Power reduction to 2 Watts
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USB-C audio out
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CabRig IR-based DSP cabinet simulator
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XLR D.I. Out
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Newly voiced studio quality reverb
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2-button footswitch included
EL84 Power Stage
EL84s are at the tonal heart of the HT-20R MK III combo and head. We applied our decades of valve amp design experience to combine the response and character of this classic British valve with a carefully voiced preamp to create wonderfully lush valve tones. From pure boutique cleans, to mild overdrive that cleans up by backing off the guitar volume control, right up to saturated distortion, this amp does it all.
Concentrated, to Concert-rated
The HT-20R MK III comes equipped with a power reduction feature taking you down to 2W without any tonal compromise, perfect for driving those EL84’s hard at manageable volumes in the studio or home.
When you’re ready to take to the stage, switch to full 20W and utilise the XLR DI output to simultaneously feed direct to the sound engineer with incredible sounding cabinet simulation via our CabRig™ IR-based speaker simulator software.
Perfect for Playing & Recording
Alongside providing capture-ready valve tones at any volume, the HT-20R MK III comes equipped with a direct USB-C output which can send 2 channels (left and right) to your DAW, ensuring the easiest way to capture authentic valve tone in recordings without the need for an interface.
The best part? These amps have in-built load protection, meaning you can use them without a cabinet connected for silent practice and recording.
IR-based CabRig™ speaker simulator
CabRig™, our class-leading IR-based speaker simulator comes as standard in the HT-20R MK III, offering hundreds of different cabinet, mic, and room combinations. Save your favourites to three presets for easy access directly from the amplifier. Get premium valve tones into your headphones, monitors and mixes.
SPECIFICATIONS
Wattage: 20W
Valves: 2x ECC82 Preamp, 2x EL84 Power Amp
Channels/Voices: 2 Channels, 2 Voices Per Channel
Footswitchable: Yes - Channels & Voices
Speakers: N/A (Head only)
Reverb: Yes
Cabrig Output: Yes (USB C, Balanced XLR & Jack)
Effects Loop: Yes
USB Recording: Yes (USB-C)
Power Reduction: Yes (To 2W)
Weight: 9.6kg
Dimensions: 473 x 244 x 222 (mm)
For more information, click here to visit the manufacturers website.

More info