Blackstar St. James 50 EL34 Guitar Amplifier Head (50 Watts)

Bringing EL34s to the St. James line, this head is portable, lightweight, and combines all the crunchy chime you could ever want with Blackstar quality.

Answering calls from guitarists everywhere for a valve amplifier that is truly lightweight and portable, Blackstar delivers the most advanced, innovative and best-sounding 50 Watt valve amps in the world. The EL34 design offers a wide range of classic guitar tones, simple to use but highly versatile. Developed after months of forensic examination of vintage valve amps, the intuitive two channel set-up delivers some of Blackstar's best ever cleans and overdrives.

Check out our livestream of the Blackstar St. James Amps:

An inductive load is built into each St. James amp, this allows you to run the valves flat out without having a speaker connected. Plus Cab Rig, the next-generation DSP speaker simulator to capture incredible tones via USB / XLR D.I. out or headphones. The Power Reduction switch allows you to select 50 Watts, 2 Watts or Sag to easily get the perfect balance of power and response for any situation from studio to stage. The head's universal power supply with the matching speaker cabinet's unique Celestion Zephyr lightweight ferrite speakers and candlenut plywood cabinet combine to create the lightest 50 Watt valve amp stack in the world and deliver amazing tones without compromise.


- Ultra-lightweight 50 Watt head
- 2 x ECC83, 2 x EL34
- Two footswitchable channels and footswitchable channel II boost
- 50W / 2W / Sag power reduction
- Studio quality digital reverb and effects loop
- USB audio output with Cab Rig advanced DSP cabinet simulator
- read more Footswitch included
WARNING: Cancer and Reproductive Harm -
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Dimensions and Weight in Packaging
Shipping Weight: 13.25 lbs
Shipping Dimensions: 23 x 22 x 12 in
Manufacturer Part Number (MPN): STJ50EL34H

For support or warranty questions, please contact the manufacturer:
Phone: 631-390-8737


  • 18 x
  • 12 x
    $100.00 with zZounds
  • 8 x
    $150.00 with zZounds
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