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St. James - the lightest and most innovative 50 watt tube amplifier in the world!
Blackstar answers the call from guitarists worldwide for a tube amp that’s truly lightweight and portable with the most advanced, innovative, and best-sounding 50 watt tube amps available today. Offered in classic EL34 design and a 6L6 model with more gain, these amps are easy to use yet extremely versatile. Developed after months of forensic study of vintage tube amps, the intuitive two-channel setup delivers our best cleans and overdrives without compromise.
Why "St. James"?
St. James is one of Northampton’s oldest districts. It was home to a 12th-century abbey that gave the area its name and hosts the Northampton Saints, the venue of the world-class rugby team, along with the iconic elevator tower dominating the skyline.
Insider Information:
- The universal power supply is lightweight and can be used worldwide from 90V to 264V 50/60Hz.
- The built-in reactive load and professional connections make St. James perfect for quiet stages.
- Each channel uses completely separate EQ circuits. This is achieved by switching potentiometers with two control levels, meaning there’s no tonal compromise between channels, even with shared EQ controls.
- The Sag setting creates a stronger "power sag" to emphasize the crucial amp compression, giving a softer, more "vintage" feel.
- Cab Rig overcomes the limitations of IR "snapshots" by using state-of-the-art digital processing to reproduce the sound and feel of a miked guitar cabinet in incredible detail.
- Over 250 microphone and cabinet combinations can be stored in one of three memory slots.
- Each cab offers a choice of microphone type and axis, as well as room mics and master EQ. Use the free Architect software for a wide range of additional options.
- Candlenut plywood provides stability and lightness. Its beneficial acoustic properties create a roadworthy enclosure that sounds great and won’t let you down.
- The new illuminated St. James logo is inspired by the Artisan amplifiers.
Instrument Cable
The Stage INST cables are professional guitar/instrument cables with high-quality jack plugs and gold-plated tips, ensuring low conductor capacitance and excellent audio transmission.
Features
- The lightest 50 watt tube amplifiers in the world, with no compromise on tone and performance. The head weighs only 6.7 kg and the 1x12" combo just 12.8 kg.
- EL34 models: Classic low-gain amp with a +10dB clean boost ranging from 'chimey' to 'creamy' and much more.
- 6L6 models: Classic US clean and modern high-gain amp, with a voice switch for more saturation and a looser feel with plenty of resonant "chug" in the low end.
- The St. James preserves the essence of a traditional tube amp; especially through the use of preamp and power tubes, as well as the "Sag" control of the output transformer.
- The patented design uses a unique combination of a switched mode power supply (SMPS) that drives a true tube amplifier (tubes in preamp and power amp), a reactive load, and advanced DSP for XLR and headphone outputs.
- The built-in reactive load allows you to use the tubes without a connected speaker. Perfect for recording or "silent stage" use.
- Includes Cab Rig, the next-generation DSP speaker simulator that reproduces the sound and feel of a miked guitar cabinet in incredible detail. Experience amazing sounds via USB/XLR output or headphones with the free software.
- The power reduction switch lets you choose between 50 watts, 2 watts, or Sag to find the perfect balance of power and response for any situation, whether studio or stage.
- Exclusive Celestion Zephyr lightweight speaker. In close collaboration with Celestion, Blackstar developed a unique lightweight speaker using a traditional ferrite magnet. Based on the "soft parts" and intonation of a Vintage 30, the Zephyr delivers enormous sonic performance but at a fraction of the weight of a standard guitar amp speaker.
- Professional connectivity and integration into your setup via low-latency USB audio as a tube interface for recording and XLR D.I. for live use.
Technical Data
- 50 watt combo
- 2x ECC83 preamp tubes
- 2x 6L6 power tubes
- 2 channels, boost switch
- EQ bass, middle, treble
- Power reduction: 50W, Sag, 2W
- Reverb
- Built-in reactive load
- Cab Rig DSP
- USB audio
- XLR Cab Rig output
- Serial effects loop with level switch
- 2-way footswitch included
- 1x 12" Celestion Zephyr speaker
- Black Tolex
- "Silver Birch" grille cloth
- Power supply: 90V to 264V 50/60 Hz
- Weight: 12.8 kg
- Dimensions: 535 x 462 x 259 mm
Cable
- Professional guitar/instrument cable
- Ideal as a connection cable between effects units, etc.
- Plugs: 6.3 mm jack ⇒ 6.3 mm jack
- Length: 6 m
- Jacket color: black
- Oxygen-free copper
- High-density copper shielding
- Flexible and durable outer jacket
- Hand-soldered plugs
- Acid- and oil-resistant
- Strain relief with clamping
- Low conductor capacitance
- Gold-plated plug tips
Scope of delivery
- 1 x Blackstar St. James 50 6L6 Combo Black
- 1 x Cable
Specification
- Product number 00090583
- Colour Schwarz
- Pre amplifier Röhre
- Speakers 1x 12 Zoll
- Headphone Out Nein
- Direct Out / Line Out Ja
- Power (Watts) 50
- additional FX Nein
- Foot switch included Ja
- Power amplifier Röhre
- Hall/Reverb included Ja
- Wheels included Nein
Reviews
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Financing
easyCredit Ratenkauf
- 2 to 60 months term
- Financing from 29,50 € / month
- More information about installment purchase
ConsorsFinanz Finanzierung
- 6 to 72 months term
- 0% financing for 109,00 € per month
- More information on financing
| 3 Year warranty | |
| 30 Day Money Back | |
| Price Match Guarantee | |
| Over 2.000.000 satisfied customers |
The hotline is currently not manned. You can reach us again on Monday, 27.04.2026 at 09:30.
| Monday | 09:30 - 18:00 | |
| Tuesday | 09:30 - 18:00 | |
| Wednesday | 09:30 - 18:00 | |
| Thursday | 09:30 - 18:00 | |
| Friday | Closed |
Different opening times |
| Saturday | 09:30 - 13:30 |