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Blackstar Venue Series HT Studio 20 20W Tube Guitar Combo Amp Black

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The HT Studio 20 combo from the Venue series is the big brother of Blackstar's critically acclaimed HT-5, and offers huge versatility for home, rehearsal or studio use. Coupled with a cathode-biased E... Read More

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The HT Studio 20 combo from the Venue series is the big brother of Blackstar's critically acclaimed HT-5, and offers huge versatility for home, rehearsal or studio use. Coupled with a cathode-biased EL34 power amp, the carefully voiced preamp provides the user with the ability to create wonderfully lush tube tones through the 12" Celestion speaker.

The Clean Channel on the Blackstar tube amp provides a wide range of clean and moderately overdriven tones. The voicing is typical of many 'boutique' style amplifiers with a ringing Class A type performance. The overall character may be adjusted with the Tone control from dark and warm through to bright and sparkling.

The HT Studio 20 Overdrive Channel is characterized by a tone that's high in gain, but lacks any of the detached top-end 'fizz' often found in many similar designs. This is a result of unique preamplifier and power amplifier shaping techniques. The overdrive cleans up beautifully as the guitar volume is reduced, so even at the most extreme settings, the Overdrive Channel remains natural sounding.

The HT Studio 20 Overdrive Channel also has its own highly flexible EQ section providing a variety of overdriven tones. Blackstar's ISF (Infinite Shape Feature) control represents a major step forward in tone-shaping flexibility. The ISF control shifts the response of the three-control tone stack between a U.S.-type response at one end, and at the other a U.K.-type response. Between these two extremes lies an infinite number of alternative tone choices that would be otherwise unavailable.

The HT Studio 20's two-channel design has been optimized for either preamp or power amp overdrive, or a combination of both. The carefully voiced preamp and cathode-biased dual EL34 power amp configuration provides the user with the ability to create wonderfully lush tube tones. From mild overdrive, that cleans up by backing off the guitar volume control, to highly saturated distortion, this amp does it all.

The HT Studio 20 also features a completely natural sounding digital reverb, which is outstandingly musical on both clean and crunch tones and raises the benchmark for guitar amplifier specific reverb design.

  • HT 20
  • 20 Watt tube combo
  • 2xECC83, 2xEL34
  • Two footswitchable channels
  • 12" Celestion speaker
  • Enhanced tone controls
  • Patent-Applied-For Infinite Shape Feature (ISF)
  • Master volume
  • Digital reverb
  • Speaker emulated output
  • Effects loop
  • One-way footswitch included
  • Cool vintage styling
  • Power (RMS): 20 Watts
  • Tubes: 2 x ECC83, 2 x EL34
  • Weight: 45 lb.
  • Dimensions: 22-3/5" x 20-4/5 x 11-1/2"
  • Footswitch: FS-4 included

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  • Customer Reviews


by PowerReviews

(based on 9 reviews)

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Reviewed by 9 customers

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Love this amp

By Jeffrey

from Hammond, IN

I play American Fenders, a deluxe Strat and a deluxe Tele as well as a Gibson LP Standard. My amplifiers consist of this Blackstar, a Vox AC4, and a Egnater Rebel 30. I no longer gig but I have a decent home recording studio and I prefer to mic all guitars, bass, and all percussion and drums when recording. I can get smooth, buttery tube tone at a volume that doesn't shatter glass or make ears bleed. This amp fits perfect in my studio. I can get the tones I'm looking for, from pure clean tones to Fender to Marshall as well as very subtle tube break up. This amp fills the holes left by the Vox and the Egnater nicely. It takes pedals well also. I have a fairly large board filled with EHX, Wampler, TC Electronics, Buddha, MXR, and Boss. This amp shines with the pedals but I don't use the distortion/fuzz/overdrives very much through this amp because the natural tones I can get really shine! As I said, I no longer gig but this 20 watt amp will keep up with any drummer out there so it could easily be used to gig with. I primarily play classic rock and blues but have no doubt this amp can do it all. Would I buy this amp again, YES, in a heartbeat!!!!

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This thing is killer

By Cass Holland

from Denver

I've had the HT-20 for about 3 weeks now and am blown away at how good it sounds. The clean is crisp and chimey and sounds great with no effort in setting it up. I love the overdrive channel just as well, It's rich and full of harmonics. I really don't like distortion that wipes out all the harmonics in cord playing. The best part is the speaker emulation outlet in the back. I plugged it into my recorder and it sounds exactly as you hear it out of the speaker. Try one out.

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Best Value, A Must-Have Practice & Recording Amp

By Jacob Westgaard

from Portland, OR

Love this amp. Extremely versatile, warm, tight, clean and articulate. Responds very well to pickups, pedals, picking, dynamics and gain settings. I run a carbon copy through the fx loop, maxon od808 and vox clyde mod wah in the guitar chain. Ibanez rga121 w/ jb(b) & jazz(n). I also have a dual rectifier. I can get an acceptable scaled-down tone to match the mesa for practice/recording. The emulated out w/ serial fx works great but I prefer to mic the cab. Sounds even better when pushing the 4 vintage 30s in the mesa cab. I bought it factory refurb and 75 off during the labor day sale. 400 made it a sweet deal but I would probably pay full price if I had to buy it again. I will most likely retube it and replace the celestion with a vintage 30, but it really doesn't need modification to sound great. Very well built. I love it!

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(1 of 1 customers found this review helpful)


Awesome Mid Range Amp

By Diego Ferrandiz

from Guaynabo, PR

I have 25 years playing guitar, I have been playing guitar through a lot of different amps (Fender Rad, Fender Twin Reverb, Roland JC-120, Fender FM212, Marshal Valvestate 8080, JCM-800, JCM-900, Mesa 1986 Mark III, VOX AC-30, etc) and I have the sensation that this amp have a really new configuration in the tone and features, is the feeling of state-of-the-art in the amps world. When the amplifier arrived, the first thing that I did was take my fender stratocaster 1992 American Standard and I plugged the guitar directly to amp, I noticed a very quiet amp whithout noise. I played some rifs in the clean channel and I perceived a great response of the pickups in my chest but at the same time a great sparkle response and a very clear high end into the short sustain of an stratocaster. I switched to the OD channel and I tested the ISF control getting a versatile feeling, remembering my old Valvestate 8080 and all fender amps that I had many years ago, but with the ability to combine all of them in a box and the posibility to change from one to other just moving the potenciometer and the equalization controls. I really feel that this amp has his own character and tone. The dimensions of the cabinet, the weight and rugged construction makes this amp a war horse for musicians. The only cons this amp has, from my point of view and according to my preferences is the gain control. When the gain is set in a minimal position the distortion is hard and when the gain is full the distortion is very hard, the amp doest have a crunch sound in the OD channel like many other amps with similar characteristics. If the user want to get a crunch sound in the clean channel this is very crispy and brighter, almost saturated. In general I'm very satisfied with this amp, looks like an amp for many years of experimentation.

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(2 of 2 customers found this review helpful)


Quite Good

By Ryan Schlenger

from New York, NY

I bought this amp because I needed a versatile amp for recording. This amp really is loaded with a wide pallet of useful tones. The clean channel is...clean. It's a bit punchy and compressed, especially on single coils, but in a really nice dynamic way that responds to your picking. The gain channel is extremely can get anything from a gritty clean with subtle brake up, to a very aggressive distorted tone. Metal guys will mainly want to use humbuckers as they really bring out the amp's bad natured goodness. For me, my pedals are as much a part of my tone as the amp I choose and the HT Studio takes them quite well. The gain channel doesn't respond friendly to overdrive pedals, even with the gain backed way down, but gain channels don't. The effects loop works as it should...I admit that I rarely use it, but I like having the option. The amp is built well and feels quite solid. No odd buzzing or ringing that plague cheaper amps. Reliability hasn't been an issue in the least. 20 watts get quite've been warned.

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(29 of 31 customers found this review helpful)


Great Tube at a Great Price

By J.

from Cali.

The tone you get out of this amp is remarkable. The cleans are great, add a little a reverb and you get that extra "umph". But the overdrive on this is what shine's, but let the amp on standby for a minute to get the full tone, you get so much tone. With the ISF knob you can get almost any tone from classic rock tone to that american metal tone, but the tone possibilities are endless. The overall package is a steal at the price, and its range it cant be beat. The tone in your head, it can be found.

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(14 of 73 customers found this review helpful)


Good but...

By Bob

from Houston TX

This amp is a great amp, but the Peavey 6505 combo has more watts, more tubes, and sounds alot better. This amp uses 2 power amp tubes but only has 2 pre-amps tubes which means part of the distortion is solid state. The Peavey's distorion uses 5 tubes and is all tube distortion. Its a good amp but the peavey is a better for the same price.

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(10 of 11 customers found this review helpful)



By Melissa

from Cumming, GA

This amp is insane! Great for its price. Amazing power and effects. I was surprised at how much this amp could do. Suggested to everyone wanting a great affordable amp that can do a lot and that can unleash a lot of power. Two thumbs up for this amp ;)

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(26 of 27 customers found this review helpful)


Wow! I'm impressed.

By Daniel Gerard

from St. Louis

This amp sounds really good. I was actually pretty surprised how many different low-wattage amps there were, and how many of them were junk. I went and tried everything from a Tiny Terror to a Marshall Haze, and this was my favorite. The clean channel is absolutely phenomenal, and its really has the best of both worlds with the "ISF" feature. With that being said, the gain channel beats it. When I went into demo it, I started out clean, and thought that it was a more "Fender" type tube amp, but I hit the overdrive, and WOW! Satan came up and asked me politely to turn it down. I was rocking to hard for the little guy. BUY THIS AMP!

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