Blackstar STJ50-EL34 St.James Combo Valve Amplifier
- Supplier
- Blackstar
- SKU
- STJ50-EL34
- Availability
- Out of stock
- Brand
- Blackstar

The Blackstar STJ50-EL34 St.James Combo Valve Amplifier:
The Blackstar STJ50-EL34 St.James Combo Valve Amplifier is a groundbreaking 50-watt valve guitar amplifier that sets a new standard in tone, feel, and portability. Traditionally, high-wattage valve amps have been heavy and cumbersome, but the St. James series changes the game by offering the lightest 50-watt valve amps available. Through extensive critical listening and comparisons with legendary amplifiers, Blackstar has created an amp that delivers exceptional sonic performance.
The St. James 50 EL34 Combo excels in producing classic tones, from world-class British crunch to impressive, American-style cleans. It features cutting-edge technology designed to enhance both live performance and recording. Switchable power modes (50W, 2W, and SAG) allow for versatility, while the inbuilt reactive load enables direct recording through XLR, stereo line-out, and USB outputs, all with a genuine ‘amp-in-a-room’ feel, thanks to the advanced CabRig™️ DSP speaker simulator.
The amp also boasts professional connectivity options, making it ideal for home recording and silent stage setups. It includes USB audio connectivity and an XLR D.I. output, utilizing the inbuilt reactive load and CabRig DSP speaker simulation for optimal performance. The revolutionary Celestion Zephyr speaker, developed in collaboration with Celestion, emulates the iconic “Vintage 30” speaker sound at a fraction of the weight, using a traditional ferrite magnet.
Constructed with candlenut plywood for its strength, lightness, and acoustic properties, the St. James 50 EL34 Combo offers a robust yet lightweight design. The use of modern SMPS (Switched-Mode Power Supply) technology in the power transformers ensures universal voltage compatibility without compromising sound quality. The amp’s boutique look, complete with an illuminated logo, adds to its appeal.
Product Video
The Blackstar STJ50-EL34 St.James Combo Valve Amplifier:
The Blackstar STJ50-EL34 St.James Combo Valve Amplifier is a groundbreaking 50-watt valve guitar amplifier that sets a new standard in tone, feel, and portability. Traditionally, high-wattage valve amps have been heavy and cumbersome, but the St. James series changes the game by offering the lightest 50-watt valve amps available. Through extensive critical listening and comparisons with legendary amplifiers, Blackstar has created an amp that delivers exceptional sonic performance.
The St. James 50 EL34 Combo excels in producing classic tones, from world-class British crunch to impressive, American-style cleans. It features cutting-edge technology designed to enhance both live performance and recording. Switchable power modes (50W, 2W, and SAG) allow for versatility, while the inbuilt reactive load enables direct recording through XLR, stereo line-out, and USB outputs, all with a genuine ‘amp-in-a-room’ feel, thanks to the advanced CabRig™️ DSP speaker simulator.
The amp also boasts professional connectivity options, making it ideal for home recording and silent stage setups. It includes USB audio connectivity and an XLR D.I. output, utilizing the inbuilt reactive load and CabRig DSP speaker simulation for optimal performance. The revolutionary Celestion Zephyr speaker, developed in collaboration with Celestion, emulates the iconic “Vintage 30” speaker sound at a fraction of the weight, using a traditional ferrite magnet.
Constructed with candlenut plywood for its strength, lightness, and acoustic properties, the St. James 50 EL34 Combo offers a robust yet lightweight design. The use of modern SMPS (Switched-Mode Power Supply) technology in the power transformers ensures universal voltage compatibility without compromising sound quality. The amp’s boutique look, complete with an illuminated logo, adds to its appeal.
Product Video
From
Call for Pricing
Enquire about this product
Tell us what you need for Blackstar STJ50-EL34 St.James Combo Valve Amplifier. We will respond with availability, pricing, and next steps.
Related
Related products
From the same category in the catalog.
Blackstar / Guitar Combo amps
Blackstar Acous-CORE-30 Acoustic:core 30 Amplifier
The Blackstar Acoustic:Core 30 Amplifier is a compact, portable amplifier offering professional sound for singer/songwriters, featuring studio-quality...
ACOUS-CORE-30
Blackstar / Guitar Combo amps
Blackstar Amplug-FLY Guitar WITH ISF Control
The Blackstar amPlug2 FLY Guitar with ISF Control is a compact amplifier featuring three channels—Clean, Crunch, and Lead—offering a wide range of tonal...
AMPLUG-FLY
Blackstar / Guitar Combo amps
Blackstar Amplug-FLY-BASS WITH Three Channels
The Blackstar AmPlug2 FLY Bass features three bass channels—Classic for valve-inspired tones, Modern for a fat bottom-end, and Overdrive for smooth grit.
AMPLUG-FLY-BASS
Blackstar / Guitar Combo amps
Blackstar Debut-100R 112 Cream Combo Amplifier
The Blackstar DEBUT-100R 112 Cream is a 100-watt combo amp with Clean and Overdrive channels.
DEBUT-100R
Blackstar / Guitar Combo amps
Blackstar Debut-100R-212 Cream 100W Combo Amplifier
The Blackstar DEBUT-100R-212 Debut 100R 212 Cream is a 100 Watt combo amplifier featuring two channels, ISF tone control, and a pair of custom 12”...
DEBUT-100R-212





