SKU: 70239481107

Blackstar ST JAMES 100 Guitar Amplifier Head

Sale price$1295.55 Regular price$1439.50
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Description

Blackstar ST JAMES 100 Guitar Amplifier HeadBlackstar proudly presents the St. James 100 head, a groundbreaking evolution in valve amplification. This amplifier is one of our most ambitious projects, painstakingly developed over the past few years to deliver unmatched valve amplifier performance. Continuing the legacy of the St. James series, the St. James 100 head is the world's lightest 100 Watt valve head, blending traditional craftsmanship with cutting edge technology. The St. James 100

Blackstar proudly presents the St. James 100 head, a groundbreaking evolution in valve amplification. This amplifier is one of our most ambitious projects, painstakingly developed over the past few years to deliver unmatched valve amplifier performance.

Continuing the legacy of the St. James series, the St. James 100 head is the world's lightest 100-Watt valve head, blending traditional craftsmanship with cutting-edge technology.

The St. James 100 head boasts a range of innovative and unique features that distinguish it from the competition:

Versatile Power Valve Configuration
The amplifier comes equipped with two distinct power valve types: 2x 6L6 and 2x EL34. With a front-panel switch, you can toggle between these power stages in 50-watt mode or combine all four valves for the full 100-watt experience, offering unmatched versatility in sound.

Revolutionary Power Amplifier “Cut” Selector
For the first time, Blackstar introduces a switchable “Cut” selector. This PAF three-position selector allows you to fine-tune the amplifier's higher, harsher frequencies. This customisation lets you shape the amplifier's overall sound to perfectly match your preferences from an aggressive, extended high-end to a warm, vintage sound.

Advanced Connectivity and Tone Control
The St. James 100 head includes a built-in reactive load and Blackstar’s IR based CabRig technology, providing professional direct tones for both live performances and recording sessions. The amp also features a switchable effects loop (Series or Parallel) and an adjustable +2 - +6 dB Solo boost which is controlled via the included 6-way footswitch.

Modern Aesthetics with Classic Appeal
While the new design aligns with the St. James lineup, it also introduces a fresh look that showcases the internal valves. This design dispels any doubts about the amplifier's valve driven nature, despite its lighter weight and advanced technology.

Experience Unmatched Power and Flexibility with the St. James 100
Level up your sound and unleash the raw power of the St. James 100 head. Whether on stage or in the studio, this amplifier is your ultimate tool for self-expression.

Features

  • Ultra-lightweight 100 Watt head
  • Switchable/mixable power valve configurations
  • 3x ECC83, 2x 6L6, 2x EL34
  • Four footswitchable channels
  • Six footswitchable voices
  • Continuously variable power reduction down to 5%
  • Footswitchable Reverb
  • Effects loop with effects level switch and series/parallel switch
  • USB audio output
  • CabRig advanced DSP cabinet simulator
  • XLR D.I. output
  • 6-way Footcontroller included
  • Stunning boutique look including illuminated logo

Specifications

St. James 100 Head

Power

100W

Speaker

N/A (Head)

Preamp Valves

3x ECC83

Output Valves

2x 6L6, 2x EL34

Channels

4

EQ

Bass, Middle, Treble

Power Reduction

Continuously Variable Down to 5%

Reverb

Yes

Built-in Reactive Load

Yes

CabRig DSP IR Based Speaker Simulator

Yes

USB Audio

Yes

XLR CabRig Output

Yes

Series/Parallel Effects Loop

Yes (With Level Switch)

Footswitchable

Yes (Included 6-Way Footswitch)

Voltage

Universal Auto Switching

Weight (kg)

10.00

Dimensions (mm)

495 x 241 x 228
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 70239481107

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H. Simon
New York, US
★★★★★ 5
Great Sheets!
Size: Twin, Color: Oatmeal
Super soft, wash up beautifully, seem well made — very happy! It’s very hard to find 100% cotton t-shirt type sheets and these are really lovely.
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Reviewed in the United States on June 1, 2026
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Chris
Chelsea, US
★★★★★ 3
Weirdly textured
Size: King, Color: Dark Gray
I have bought and loved jersey sheets in the past, that have all been as soft as a well worn cotton t-shirt. These arent soft. They have the stretch of jersey, but not the soft smooth texture that they should have. Even after washing a few times these are one of my least favorite sheets I've ever bought on Amazon.
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Reviewed in the United States on May 30, 2026
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Nyfan1
Belleville, US
★★★★★ 5
Soft, Breathable Sheets That Feel Great to Sleep On
Size: Twin, Color: White
This Amazon Basics jersey sheet set was a really good purchase. The cotton material is soft, stretchy, and breathable — it feels like sleeping in a comfortable T‑shirt. The fitted sheet has a nice snug fit that stays in place, and the flat sheet is lightweight without feeling flimsy. The fabric washes well, doesn’t pill, and stays soft after multiple loads. It’s a great everyday sheet set for anyone who likes that cozy, relaxed jersey feel. Overall, comfortable, easy to care for, and great value for the price.
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Reviewed in the United States on May 18, 2026
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Christopher
West Palm Beach, US
★★★★★ 5
The Perfect Sheets To Lie On While Writing Amazon Reviews
Size: Full, Color: Light Gray
As I write this, I am laying on an adjustable full sized bed by Hofish and a 10.5" comfort foam mattress by Classic Brands. I know I sound like I am an Amazon plant, but I swear I am not. I'm not even a stockholder anymore. This is the most awesome bed stylings combination I have had in many, many years. In fact, it is the best I have ever owned and it is beat only by some ritzy resort I stayed at on vacation like 20 years ago, though I admit I was pretty drunk the entire time so my memory might not be the most accurate. But getting back to today... these sheets are great. I washed them twice - I'm not a neat freak, I am just amazingly disorganized and easily distracted while doing laundry, so tonight they went though two wash cycles and one dry. And then I put them on the bed. While these sheets are not deep pocket sheets, they don't need to be with this mattress. There is enough room and border for them to tuck and wrap with the elastic to give a strong grip under the mattress, which is important as the adjustable frame continually put the sheets and mattress though its repeated adjustable calesthenics-type positioning. The other two sheet sets I have used since I got this bed have struggled poorly with this. In the day or so and at least a dozen position changes, these sheets stay in place with no popped corners to exposing the bowl as the head and feet rise. Of course, till will tell if it lasts, but so far they are the best of the batch of sheets in my closet. As for texture, they are awesome. I'm a dude. I don't really know what thread count or knit or whatever really means. But these sheets feel like a well-washed favorite, quality rock & roll concert t-shirt. And not one of these glitter puff stupid new groups, like a real rock band from the 80s that now charges $250 for a concert ticket and $60 for a t-shirt...but that group you saw back then, paid $10 for the shirt and you STILL have it and love to wear it because it is perfectly molded to your body, soft and reliable. The kind of shirt you will wear under your suit at work and just grin not just for mental middle finger to corporate dress codes, but because the t-shirt is just that great of a feeling. Well, that is what these sheets feel like. And now you get to sleep in it. It is that awesome. In LA right now we are having a nasty heat wave, but these sheets don't seem to bake me even with my stuttering AC. The flannel sheets I love seem to trigger the butt sweats as soon as I lay down in this heat, but no such problem with these. So really, I'm absolutely happy with these things. I am going to order more in other colors as soon as Amazon gets them back in stock. Great price, great quality, great comfort, great fit, great deal. It is that simple.
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Reviewed in the United States on September 3, 2017
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Marellen Coley
Houston, US
★★★★★ 5
Soft smooth and wrinkle free!
Size: King, Color: White
The most comfortable sheets I’ve had in years! Soft and don’t wrinkle up in the bed. Some reviews said they are thin but I think they’re perfect! I don’t want super thick sheets as we are hot sleepers. These are the perfect feel. They also stretch very well to fit on my mattress all the way around and I have a thick mattress! My precious sheets were a struggle to get over the corners but these fit perfectly. Would buy 10 times over! Such a good value as well!
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Reviewed in the United States on April 14, 2026

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