Guitar amplifier (head) Blackstar St. James 50 EL34 Head

The Blackstar St. James 50 EL34 Head is a revolutionary blend of classic British tone and modern innovation. It’s the world’s lightest 50-watt valve amp head, built without compromise in sound quality or functionality. Its lightweight design makes it perfect for both stage and home use.

The St. James EL34 delivers the iconic British Crunch and shimmering, glassy Cleans. With two footswitchable channels and a dedicated Boost for Channel II, it offers a wide range of tones to suit any style.

A selectable power mode lets you toggle between 50W, 2W, or Sag, making it ideal for any playing environment. The built-in reactive load enables true post-power valve output to USB, XLR, or via the CabRig™ IR-based speaker sim, for real amp-in-a-room feel.

Constructed using lightweight yet strong candlenut plywood and featuring the Zephyr speaker—developed in collaboration with Celestion—this amp delivers full tone with minimal weight. Universal power via SMPS technology ensures reliable performance anywhere in the world.

This amp is perfect for players who crave genuine valve tone without the burden of heavy gear, and want modern connectivity features built right in.

Features

• Ultra-lightweight 50-watt valve amp head
• Valves: 2 x ECC83 and 2 x EL34
• Two footswitchable channels with dedicated Boost for Channel II
• Power modes: 50W / 2W / Sag
• Master Volume control
• Digital reverb
• Effects loop with level switch
• USB output for authentic valve tone recording
• XLR D.I. output for stage use
• CabRig advanced DSP cabinet simulator
• 1/4" headphone output
• Classic British Crunch and clean tones
• Lightweight Zephyr speaker co-designed with Celestion
• Candlenut plywood cabinet for durability and tone
• Universal power with SMPS technology
• Premium boutique styling with illuminated logo
• Footswitch included