Blackstar St James 100W Amplifier Head

Retailing in the region of £1,349.00

If you are looking for New gear from Blackstar Amps. The Blackstar St James 100W Amplifier Head is a great option. In stock, and ready to ship with fast, reliable delivery across the UK, Ireland, and Europe. For more details within Amps, additional Amp Heads options, full specifications, demos, images, videos, and secure online ordering, read on below.

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Description

If you are looking for New gear from Blackstar Amps. The Blackstar St James 100W Amplifier Head is a great option. In stock, and ready to ship with fast, reliable delivery across the UK, Ireland, and Europe. For more details within Amps, additional Amp Heads options, full specifications, demos, images, videos, and secure online ordering, read on below.

Here’s what Blackstar say about the Blackstar St James 100w Head EL34 and 6L6 Power Stage:

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.

Key Features

  • 100 Watt valve head
  • Custom designed light-weight Switched-Mode Power Supply (SMPS)
  • 3 x ECC83 / 12AX7 preamp valves
  • 2 x EL34 and 2 x 6L6 power amp valves
  • Special design light-weight output transformer
  • Four footswitchable preamp channels
  • CLEAN based on Fender ‘black-face’ Twin / Deluxe
  • CRUNCH based on Vox AC-30 Top Boost
  • Footswitchable BOOST on CRUNCH
  • OD 1 super-crunch based on classic overdriven British amps
  • OD 2 high-gain voiced for modern resonant hot-rodded tones
  • TIGHT setting on OD2 for alternative contemporary high gain tone
  • Electronically independent 4-band EQ specifically voiced for each channel
  • Digital Reverb with separate controls for CLEAN/CRUNCH and OD 1/OD 2.
  • MASTER Volume
  • POWER control for continuous adjustment between 100% and 5% power
  • 3 mode power valve selection switch
  • Effects loop with switches for +4dBv/-10dBv level and Series/Parallel
  • Footswitchable SOLO boost with variable control
  • MIDI control of channels and voices
  • Built-in Reactive load for ‘silent’ recording use
  • CabRig control of emulations for Headphone, XLR and USB outputs
  • Speaker outputs for 2x 8ohm and 1x 16ohm

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.

Specifications

  • Weight: 10.1kg / 22.3lbs

Additional information

Weight 15 kg

About the manufacturer

Blackstar

Blackstar are known for making standout effects pedals and more. Founded with a passion for tone and innovation, their gear has shaped countless records and players’ sounds. Look out for their iconic designs and flagship models — they’ve earned a reputation for reliability and creativity.

More info about this Product

Amp Heads

An amp head contains the core tone and power of a guitar amplifier without the built-in speakers, allowing you to pair it with the cabinet of your choice. This setup offers greater flexibility over sound and volume, as different speaker cabinets can dramatically change the feel and character of the amp. Amp heads are available in valve, solid-state, and hybrid designs, ranging from low-wattage studio models to high-powered touring rigs. They’re ideal for players who want a modular setup, precise control over their tone, and the ability to adapt their rig to different venues, cabinets, or recording situations.

Amps

Guitar amps cover everything needed to amplify, shape, and project your guitar sound, from small practice setups to full stage and studio rigs. In this category you’ll find combo amps, separate amp heads and speaker cabinets, covering valve, solid-state, and hybrid designs, each offering a different feel and response. You’ll also see modelling and digital amps, built-in effects, footswitches, attenuation solutions, replacement speakers, valves, and essential accessories to keep an amp performing at its best. Whether you’re chasing pristine cleans, classic crunch, or modern high-gain tones, guitar amps and related gear are all about finding the right balance of power, tone, and control for the way you play.

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Head

A head is an amplifier unit that contains the preamp and power amp but does not include a built-in speaker. It is designed to be used with an external speaker cabinet, allowing players to choose different cabinet and speaker combinations to shape their sound.

Amp heads are popular with guitar and bass players who want flexibility and scalability, as the same head can be paired with different cabinets for home, studio, or live use. They are commonly available in valve, solid-state, and hybrid designs, and range from compact low-watt models to powerful stage-ready amplifiers.

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