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Blackstar HT-20R MK III - 20W 1x12 Guitar Tube Combo Amp w/ 2 Channels

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Condition: New
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$719.00

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Availability: Only 6 left in stock, order soon!
Fulfilled by Sweetwater Sound

Arrives Thursday, Oct 29
Order within 1 hour and 14 minutes

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At a glance

Condition
New
Model
HT20RMK3
Dimensions
15.12"D x 20.41"W x 24.21"H
Material
Stainless Steel
Output Wattage
20 watts
Speaker Size
12 in
Power Source
Corded Electric
Warranty
1 Year
Works with
Guitar, Bass, Keyboard, All

Features 10

  • Features a powerful 20W tube amplifier for rich, authentic sound
  • Equipped with a 12-inch Celestion speaker for clear and balanced tone
  • Dual-channel design with clean and overdrive channels for versatile tones
  • Patented ISF (Infinite Shape Feature) for blending British and American amp sounds

Description

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. The HT-20R MK III features a power reduction to 2W for low-volume EL84 tones and switches to full 20W for stage use, with XLR DI output and CabRig for cabinet simulation. The HT-20R MK III delivers valve tones with USB-C 2-channel recording and built-in load protection for silent practice without a cabinet. ‘HT’ stands for ‘High Tension,’ referring to the high voltages in valve circuits like the HT MK III. It originated with Blackstar’s first HT valve pedals. CabRig, our class-leading IR-based speaker simulator comes as standard in the HT-1R MK III, offering hundreds of different cabinet, mic, and room combinations. Save your favorites to three presets for easy access directly from the amplifier. Get premium valve tones into your headphones, monitors and mixes. At Blackstar, we are all musicians and understand the importance of great tone, whether for practicing at home or on stage. Based in Northampton, England, with over 100 years combined experience in guitar amplification design and production, we are totally committed to providing you with the ultimate tools for self-expression. We believe our unique and patented innovations will take you a step closer to realising the ‘sound in your head’. "WELCOME TO THE CHURCH OF DISTORTION." - GUS G. Ozzy Osbourne/Firewind POLAR is THE audio interface that is specially designed to enhance your guitar DI signal in a way that brings back the coveted feel and response of playing through a real valve guitar amplifier. POLAR is equipped with FET instrument inputs, providing ultra-low noise and high headroom for the best sonic foundation for your guitar tone. “Enhance” restores the touch, feel, and response of playing through a real amp. We innovate in all we do to give musicians the ultimate tools for self-expression. In 2004, four friends, all bandmates, were looking for a new challenge. Having worked together for years at the highest levels of the amp designing industry, their dream was to create new and innovative guitar amplifiers and pedals that would be the ultimate tools for self expression. Meticulously engineered at Blackstar HQ in Northampton England, our products are the result of the team’s 50+ years of collective experience at the highest levels of amplifier design and production.

Specs 19

Brand Blackstar
Color HT20RMK3
Material Stainless Steel
Output Wattage 20 watts
Number of Bands 2
Speaker Size 12 inches
Power Source Corded Electric
Output Channel Quantity 2

Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Thursday, Oct 29

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews


My favorite amp yet
Model: HT5RMK3
I own a Marshall 10/20watt tube head paired to an Orange 2x12 cabinet , a fender modeling amp , and this Blackstar .5/5watt. This is the amp I grab 90% of the time. The Marshall I grab the other 10%. The fender has become a spare/loaner. Don’t get me wrong , if I had a very large practice space the Marshall/orange combo would get more use. However , I share a 1000sqft space with other people. The Marshall has a 10 watt setting , but even at 10 watts it’s just way to loud for my space most of the time. This blackstar set on the .5 watt setting is amazing for me. The tone is cranking rock tone , but the volume is very tolerable for everyone in the house. Speaking of the tone , it’s terrific. Bear in mind that I am not an audiophile. Just a regular guy that loves rock and dirty blues music. For those 2 sounds this thing totally rips. If you’re looking for a low wattage practice amp or something for a smaller playing space this could be just the ticket. I know it meets all my needs. I’d like to add that even though rock and blues are my primary genres , I love playing acoustic and own a Taylor that sounds terrific through this amp. ... show more
Reviewed in the United States on June 14, 2022 by Josh C.

STAY AWAY!!
Model: HT20RHMK3
Thank God for amazon returns.... (despite the $36 to ship it back) - Thing crapped out on me mid gig - 1st one with this head - started cutting in and out switching channels for no reason - had practiced with it for about 10 hours with no problems - SAVE YOUR MONEY - quality controls sucks on these - sounded good while it worked.... Went with the REVV G20 instead - Stay away from these POS....... ... show more
Reviewed in the United States on November 28, 2025 by Jason

This amp does it all
Model: HT5RMK3
The Blackstar HT5R MKII 5-Watt 1x12 Inches Tube Combo Amp with Reverb has fantastic sound, even at low volume. The 12 inch speaker sounds amazing. It has every output and input you could want. It has an effects loop. It's a tube amp! I have been using amp modelling pedals and IRs, and this thing is just SWEET sounding. It's a real tube amp with a real 12 inch speaker! The real deal. Wow. I use the clean channel, with my best drive pedals, and this baby sings. Delay and reverb in the effects loop, never sounded better. Like a pro. Just wow man. ... show more
Reviewed in the United States on July 7, 2022 by rbuzby

Pretty cool tube amp; I was looking for something with heavier sound
Model: HT5RMK3
Cool, compact, and 12" speaker. Well known and trusted brand, sounded pretty great when played through Les Paul and Fender Jazzmaster. My main issue/point of return was that it wasn't quite heavy metal enough. I've been looking for that real djent/chug sound that I could play in an apt. without disturbing the neighbors, and although this amp was very good and fun to play with, it didn't quite meet my needs. Also, all the connections and plugs are hidden in the back and bottom, behind the speaker; which is tricky to get to and would be better if it was just all exposed facing backwards. Otherwise, I'd get this amp again, maybe as a Head only and put on a speaker cabinet - cool tones, but not what I'm seeking right now. ... show more
Reviewed in the United States on June 2, 2020 by Some Cool Dude

Worked great for two months then crapped out with no help from Amazon or the seller.
Model: HT5RMK3
I purchased this amplifier on March 1 and it worked great. And then on April 24 for no reason it started buzzing with no response from the Guitar. No help from Amazon except wanting to charge me a $150 restocking fee. No response from the seller after I gave them a serial number. Used multiple high-quality cables to test as well as a Fender Custom Shop stratocaster. I am had zero exposure to any elements outside of being on a table top in a bedroom. Very unsatisfied with the support from both the seller and Amazon. I definitely would recommend buying a protection plan if you plan on buying this amp. ... show more
Reviewed in the United States on April 28, 2022 by Stephen M.

Classic lack of quality control from Blackstar
Model: HT5RMK3
I have always loved the sound of Blackstar amps. This one is no different. The ability to knock the power down to .5w is an awesome feature, so I couldn't wait to get one. Why two stars? Buying a Blackstar amp is playing a game of chance with your paycheck. Some folks get them and never have an issue, the rest of us, not so lucky. I'm getting the same 'crackling' sound I got out of the older HT-5, and the HT-20. Do a quick Google search on "Blackstar amp crackling sound" and you'll find tons of people that are absolutely sick of these things. Also, just like the old HT-5, when you use the footswitch to change channels, you better not have any sound coming out of it. Otherwise you'll get a nice loud POP like you just blew a fuse. Why do all this redesigning and "upgrading", but continue to use the same $#%@ electronics on the inside? It's a shame. The fact that it's the same exact issues they've had going on for years, tells me they're not even pretending to listen to customer feedback. They've lost a ridiculous amount of customers because of this. ... show more
Reviewed in the United States on March 25, 2019 by Spenser

Perfect dad amp for me.
Model: HT5RMK3
For me this is a near perfect dad amp for home use. It’s plenty loud for the living room, most of the time I have it on the 1/2 watt setting with the gain about halfway or less and the volume less than 1/4 of the way up. It’s nice to have the different voicing switch. The eq knobs are a little not what I expected, they seem like the actively boost or cut the high, med, low frequencies instead of how the tone knobs work on other amps. I love the aux in to be able to hookup my iPad for some backing rhythm (using the patterning app or GarageBand for some drums). I really don’t use the clean channel all that much, I just turn down the gain on the drive channel and/or fiddle with the guitar volume knob to clean it up. Downside is that it is a little pricey. ... show more
Reviewed in the United States on August 8, 2019 by Tsukamoraze

so this is good for Ozzy, Dio, Black Sabbath sorta sound
Model: HT5RMK3
the clean sound is beautiful but I guess I am going to need a distortion pedal to get a Metallica type sound as this is too round bubbly and not crunchy enough for Metal, so it's a great Blues amp, and a good Heavy Metal amp but not Thrash Metal
Reviewed in the United States on April 5, 2023 by Gregski Gregski
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