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Blackstar HT-20R MKIII Guitar Amplifier 20w 12inch Valve Amp Combo

IN STOCK - Ships today if ordered before 1pm AEST

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Product Information

In Northampton, UK, Blackstar is proud to have some of the most experienced valve amp designers in the world. They have brought those decades of knowledge and learning to create the latest incarnation of our award-winning HT valve amps – the MK III Series. 

The HT line quickly became established as the best-in-class for compact valve amplifiers and for over a decade has given guitarists the best solution for getting big valve amp tones onto recordings and for home practice in a small, portable format.

The MK III builds on the revered history and success of the prior HT iterations, elevating them to a new level of sound quality, features, and performance. Four incredible voices from chiming cleans to soaring high gains and our patented Infinite Shape Feature.

Power Reduction down to 10% of the amps rated power features on the HT-5R MK III and the HT-20R MK III models. A game-changing addition is our advanced IR-based CabRig™ DSP technology, an embodiment of our latest innovations in speaker, cab, mic, and room emulation. This technology, originally featured in our St. James and AMPED products, represents our commitment to making Blackstar the ultimate tools for self expression. Coupled with 4-channel audio via the USB-C, capturing professional quality valve tone in your DAW is simple.

The CabRig outs (XLR, Stereo Line Out and USB) can also be used in Standby Mode making it ideal for both recording and silent stages too. Upgraded circuit board components and an all-new digital reverb with adjustable parameters further enhance
the tone and performance. All this comes in a stunning new livery using materials normally found on boutique amps; premium tolex and fret, mini-toggle switches and a metal plate logo.

Our new HT MK III Series of guitar heads, combos and cabinets are the culmination of decades of design experience and innovation; delivering “the sound in your head” with absolutely no compromises in tone, feel or performance.


  • 2x ECC83 preamp, 2x EL84 power amp
  • Two footswitchable channels: boutique clean, high gain overdrive
  • Four footswitchable voices: American Clean, British Clean, Classic Overdrive, Modern Overdrive
  • Patented Infinite Shape Feature (ISF)
  • Master Volume
  • Studio quality reverb adjustable in Architect
  • Power Reduction down to 2 Watts
  • USB-C for recording and connecting to Architect and CabRig IR-based technology
  • CabRig outputs (1/4" stereo, XLR Balanced, and USB-C)
  • Effects loop with effects level switch
  • Stereo Line input
  • 1x12" Blackstar designed speaker
  • Included FS-16 2-way footswitch and FS-22 compatible


1 Year (Extended to 3 Years via Registration) Warranty

Shipping & Delivery

All orders over $100 will be automatically eligible for FREE Shipping Australia Wide, if you order is under $100 there will be a flat rate of $10.

Belfield Music is well known for its top online customer service. We treat all online customers with the same excellent service we give to our in store customer. We will ensure that you receive all the support you need while your goods are in transit and ensure the goods arrive promptly. All of our shipments have tracking numbers available and we cover every single unit by our own shipping insurance.     

Online orders are normally processed within 1-3 business days. Once processed, your order should take between 1-8 business days to arrive depending on your location. Please note that your order may take up to 10 business days to arrive from the day you place your order. 

If it transpires that the product is out of stock due to a stock discrepancy and/or there will be a delay in shipment, we will contact you within 2 business days of placing your order and give you the option of waiting or cancelling your order. The products we advertise online should show if they are in stock or not. We do our best to keep the website stock count up to date, but there may be an occasional error.

If you wish to utilize an Express Delivery Service to receive your item, please contact us for a shipping quote before you place your order at admin@belfieldmusic.com.au or by using the Chat icon on the bottom right of the page.           

Deliver is made during the hours from 8:00am till 5:30pm Monday to Friday. As such, please ensure you nominate an address which is capable of receiving goods during 8am and 5.30pm.  Given the restrictions on PO Box deliveries we cannot deliver larger sized items to a PO Box.

If for any reason our selected carriers don't service your area we will contact you before processing your order if this applys to you.

Returns Policy

If you wish to return an item which is not damaged or faulty in any way and you have simply changed your mind or made the wrong decision, you must let us know within 7 days of receiving the item.  We will not agree to refund an item because you simply changed your mind or made the wrong decision if we have not been advised of your intention within 7 days of receiving your item. Once we have provided a return authority, it is the buyer’s responsibility to return the item, at their own costs within 30 days from original purchase. If the item is returned with any damage or alteration to its original packaging, we will refund the item subject to applying a minimum 15% restocking fee.  We will not refund the costs of the initial shipping charges.

It is in Belfield Music best interests to keep our customers happy with their purchases. If you are not happy with your purchase, please talk to us first. We will always attempt to resolve any problems you may have as best we can. To contact us please email us at admin@belfieldmusic.com.au or by using the Chat icon on the bottom right of the page.