Blackstar STJ50-6L6 St. James All-Valve Amplifier

The Blackstar St. James 50 6L6 Combo is a 50-watt all-valve amplifier that delivers rich American clean tones, articulate dynamics, and modern versatility — all in an ultra-lightweight design. Handcrafted in the UK, it features 6L6 power tubes for a glassy clean response, smooth breakup, and a wide dynamic range.
Engineered with reactive load technology, CabRig™ IR simulation, and a USB-C audio interface, the St. James 6L6 is equally at home on stage, in the studio, or at home. Weighing almost half of a traditional valve combo, it’s the lightest 50W all-tube amp in its class — without sacrificing tone or power.

Features:

• 50W All-Valve Combo Amplifier – authentic tube tone with modern flexibility
• Preamp Valves: 2 × ECC83 Power Valves: 2 × 6L6
• 2 Channels: Clean and Overdrive (footswitchable)
• 3-Band EQ + ISF Control – fine-tune tone between British and American voicing
• Power Reduction: 50 W / Sag / 2 W modes for stage, studio, or home use
• CabRig™ Reactive Load with IR Output – record or perform silently with realistic cabinet emulation
• USB-C Audio Interface – direct recording into your DAW with no latency
• Balanced XLR D.I. Output – send amp tone directly to mixer or interface
• Series Effects Loop – integrate your pedals or rack processors
• Studio-Quality Digital Reverb – adds space and depth to your tone
• Footswitch Included – channel and reverb control
• Celestion G12Z-70 Zephyr Speaker – premium, lightweight driver for clarity and punch
• Ultra-Lightweight Cabinet – one of the lightest 50W all-valve combos ever built
• Classic Styling: black tolex, metal grille, and vintage-inspired control panel

Specifications:

• Power Output: 50 W (switchable to 2 W / Sag)
• Preamp Valves: 2 × ECC83
• Power Valves: 2 × 6L6
• Channels: Clean / Overdrive (footswitchable)
• Speaker: 1 × 12″ Celestion G12Z-70 Zephyr
• EQ: Bass / Middle / Treble + ISF
• Outputs: 1× ¼″ Speaker Out, 1× XLR CabRig Out, 1× USB-C, 1× Headphones
• Inputs: 1× ¼″ Guitar Input, 1× FX Send/Return
• Footswitch: Included (2-button)
• Software: Architect (CabRig™ IR Editor for PC/Mac)
• Cabinet Type: Semi-Open Back
• Construction: Lightweight Plywood
• Power Supply: AC Mains