Blackstar St. James 50 EL34 Head & 212VOC 2x12 Cab

Quick Product Summary

The Blackstar St. James 50 EL34 Head & matching St. James 212VOC Fawn 2x12 cabinet is a premium valve guitar rig built for players who want classic EL34 response and serious stage performance without the weight normally associated with a 50-watt valve head and large speaker cabinet.

At the heart of the setup is the St. James 50 EL34 Head, combining 2 x ECC83 preamp valves with 2 x EL34 power valves. Its two-channel design moves from clear, dynamic clean tones into expressive British-inspired crunch, with a footswitchable boost providing another level of drive when required. Three power modes – 50W, Sag and 2W – give the amp genuine flexibility from stage volume to home and studio use.

The matching St. James 212VOC Fawn cabinet uses two exclusive lightweight 12-inch Celestion Zephyr speakers, delivering the spread and authority of a vertical 2x12 while keeping cabinet weight remarkably manageable. Add an integrated reactive load, CabRig speaker simulation, USB audio, XLR direct output, headphones, reverb and effects loop, and this becomes a thoroughly modern valve rig that still puts traditional amp tone and playing response first.

At A Glance

Feature	Details
Brand	Blackstar
Series	St. James
Amplifier	St. James 50 EL34 Head
Cabinet	St. James 212VOC Fawn
Condition	New
Power	50W / Sag / 2W
Power Valves	2 x EL34
Cabinet Speakers	2 x 12" Celestion Zephyr
Cabinet Power Handling	140W
Finish	Fawn
Main Appeal	Premium full-valve head and 2x12 rig with dramatically reduced carrying weight
Best For	Gigging, recording, pedalboards, rehearsals and professional guitar rigs

What's Included?

• Blackstar St. James 50 EL34 Valve Head – Fawn

• Blackstar St. James 212VOC Fawn Vertical 2x12 Speaker Cabinet

• Blackstar FS-19 2-way footcontroller

Why Choose The Blackstar St. James 50 EL34 Head & 2x12 Cab?

50 Watts Of Genuine EL34 Valve Power

The St. James EL34 uses two ECC83 preamp valves and two EL34 power valves, providing the touch response, harmonic complexity and natural compression players expect from a genuine valve amplifier. Blackstar has voiced this version around classic clean and British-inspired crunch territory rather than making it simply another modern high-gain head.

A Full 2x12 Rig Without Traditional 2x12 Weight

The matching 212VOC cabinet is loaded with two Celestion Zephyr 12-inch speakers developed specifically for the lightweight St. James platform. Combined with the amp head's lightweight construction, this makes the complete system considerably easier to transport than many conventional 50W valve-head-and-2x12 combinations.

50W, Sag Or 2W Power Modes

Full 50W mode provides maximum clean headroom and stage authority. 2W mode makes the amplifier far easier to work with at home or in the studio, while Sag mode changes the behaviour of the power supply for a softer, more compressed vintage-style response.

Footswitchable Boost

Channel II is built around classic British-style crunch and includes a +10dB front-end boost. Engaging the boost drives the valve preamp harder while retaining the core character of the channel, making it useful for moving from edge-of-breakup and rhythm tones into more saturated lead sounds.

Built-In Reactive Load

One of the St. James system's most significant features is its integrated reactive load. This allows the amplifier's real valve power stage to remain part of the direct-recording signal path, making silent recording and modern stage setups practical without requiring a separate external load box.

CabRig Speaker Simulation

Blackstar's CabRig IR-based DSP speaker simulator provides configurable cabinet, microphone and room-style processing for the amp's direct outputs. This means you can send a consistent miked-cab-style tone directly to recording equipment or a PA without abandoning the response of the real valve amplifier.

The Matching St. James 212VOC Fawn Cabinet

The included St. James 212VOC Fawn is not simply a generic 2x12 paired with the head. It was developed as part of the same lightweight St. James platform.

Two Blackstar-exclusive Celestion Zephyr 12-inch speakers provide a combined 140W power-handling capacity, comfortably accommodating the 50W amplifier head while retaining the physical movement and projection guitarists expect from a proper two-speaker cabinet.

The vertical cabinet can also be configured with an open or closed rear, letting you alter the way the cabinet projects into the room. Closed-back operation produces a more focused response, while opening the rear changes the spread and interaction with the room.

Connection options include 4-ohm and 16-ohm mono operation or stereo 8-ohm left/right inputs, giving the cabinet useful flexibility beyond this matched St. James setup.

Blackstar St. James 50 EL34 vs Popular Alternatives

Blackstar St. James 50 6L6

The St. James 50 6L6 shares the lightweight construction, reactive load, CabRig and 50W/Sag/2W power arrangement, but its 6L6 output stage and Channel II design move further towards increased clean headroom and more aggressive high-gain territory. Choose the EL34 version for classic crunch and British-inspired drive; choose the 6L6 when modern high gain is a greater priority.

Blackstar St. James 50 EL34 2x12 Combo

The St. James 50 EL34 2x12 Combo packages the same core EL34 concept and twin Zephyr speaker format into a single enclosure. The separate head and 212VOC cabinet setup gives you greater placement flexibility and the option to use the head with different cabinets, while the combo is useful if you prefer an all-in-one format.

Blackstar HT Club 40 MkIII

The HT Club 40 MkIII is a more conventional 40W EL34 1x12 combo with four voices, ISF and a Celestion speaker. It is an excellent choice when you want an all-in-one gigging amplifier. The St. James system moves into a more premium, significantly lighter-weight design and adds the built-in reactive load and more advanced direct-recording approach.

Marshall Origin50 Head

The Marshall Origin50 is a straightforward 50W EL34 head with 50W, approximately 10W and 5W power settings, single-channel operation and a switchable boost. It is a strong choice for traditional Marshall-style players. The St. James offers a broader two-channel setup alongside 2W/Sag operation, reverb, reactive-load technology, CabRig, USB audio and balanced XLR connectivity.

Who Is The Blackstar St. James 50 EL34 Rig For?

This St. James head and cabinet package is particularly well suited to:

• Gigging guitarists tired of carrying exceptionally heavy valve equipment

• Blues and classic-rock players who favour EL34 character

• Guitarists wanting clear clean tones alongside vintage-inspired crunch

• Pedalboard users looking for a responsive valve platform

• Professional musicians needing both stage and studio functionality

• Players using silent-stage or direct-to-PA systems

• Home-studio guitarists who want to record a genuine valve power stage

• Musicians wanting 50W stage headroom with genuinely useful low-power operation

• Guitarists who prefer a separate head and cabinet rather than a combo

• Players wanting the spread and physical response of a vertical 2x12

Looking for advice on choosing the right valve amp head, 2x12 guitar cabinet or professional guitar rig? Our experienced team of musicians can help by phone, online or in-store.

Suitable Genres & Playing Styles

The EL34 St. James is particularly strong for blues, classic rock, indie, alternative, roots rock, pop, country and traditional British-inspired guitar tones.

Channel I provides a clean, dynamic foundation that works particularly well with pedalboards, while Channel II is designed around more vintage-influenced crunch. The footswitchable boost then pushes the preamp harder for lead sounds and more saturated drive.

Players looking primarily for extreme modern metal gain should also consider the St. James 6L6 version, while those who value touch sensitivity, pedal interaction and classic valve crunch are especially well served by this EL34 configuration.

Why Choose A Separate Head & Vertical 2x12 Cabinet?

A separate guitar head and speaker cabinet gives you more flexibility than a fixed combo. You can position the head conveniently, change speaker cabinets later and transport the amplifier and speaker section as two separate pieces rather than moving one large enclosure.

The vertical 2x12 format also raises one speaker higher than a conventional horizontal cabinet, helping the player hear the rig more directly on stage. You retain the fuller spread and low-frequency authority associated with two 12-inch guitar speakers without immediately stepping up to the size of a traditional 4x12.

For this St. James package, the lightweight design makes those advantages particularly attractive because the separate cabinet remains far easier to manage than many traditional 2x12 designs.

CabRig & Reactive Load: A Valve Rig Built For Modern Recording

Traditional valve-head recording normally requires a speaker cabinet or dedicated load box, microphone, stand, suitable room and enough volume to make the amp behave the way you want.

The St. James takes a different approach. Its built-in reactive load interacts with the valve power stage in a speaker-like way, allowing the post-power-valve signal to feed the direct-recording system. CabRig then provides the cabinet and microphone simulation.

This means you can enjoy the matched 2x12 cabinet when volume is appropriate, then move into a direct or silent workflow without abandoning the real EL34 output stage at the centre of your sound.

Story & Context

Blackstar developed the St. James series around two particularly difficult goals: produce genuine valve amplifiers at substantially lower weights and integrate the tools modern musicians need for recording and direct live use without compromising the traditional valve signal path.

To reduce weight, Blackstar re-examined areas including the power supply, chassis, transformers, cabinet construction and speakers. Modern switch-mode power-supply technology provides universal-voltage compatibility while the lightweight cabinet construction and Celestion Zephyr speakers reduce the bulk traditionally associated with powerful valve rigs.

The EL34 model was specifically voiced around American-inspired clean headroom and classic British crunch. Blackstar subsequently used the St. James 50 EL34 platform as the foundation for Jared James Nichols' JJN 50 signature amplifier, underlining the original platform's focus on expressive, dynamic valve tones.

The result is not simply a traditional valve amp made smaller. St. James combines real valves, a reactive load and physical guitar speakers with CabRig and digital connectivity so the same rig can move between conventional stages, silent stages, studios and home recording.

Technical Specifications – St. James 50 EL34 Head

Specification	Details
Product Type	Valve guitar amplifier head
Output Power	50W
Power Modes	50W / Sag / 2W
Preamp Valves	2 x ECC83
Power Amp Valves	2 x EL34
Channels	2
Channel II Feature	Footswitchable Boost
Boost	+10dB front-end boost
EQ	Bass, Middle, Treble
Reverb	Yes
Reactive Load	Built in
Speaker Simulation	Blackstar CabRig
USB Audio	Yes
Balanced Direct Output	XLR CabRig output
Headphone / Line Output	Yes
Effects Loop	Series
Effects Loop Level	Switchable
Footswitchable	Yes
Included Footcontroller	FS-19 2-way
Finish	Fawn
Voltage	90–264V, 50/60Hz
Weight	6.7 kg
Dimensions	402 x 222 x 214 mm

Technical Specifications – St. James 212VOC Fawn Cabinet

Specification	Details
Cabinet Type	Vertical 2x12 guitar speaker cabinet
Speakers	2 x 12" Celestion Zephyr
Power Handling	140W
Mono Impedance Options	4Ω / 16Ω
Stereo Operation	8Ω left / 8Ω right
Rear Configuration	Open / closed-back configurable
Cabinet Material	Lightweight Candlenut ply
Finish	Fawn with black basketweave styling
Weight	13.63 kg
Dimensions	501 x 798 x 295 mm

Power Requirements

The Blackstar St. James 50 EL34 Head is mains powered and supports a universal 90–264V, 50/60Hz supply.

The St. James 212VOC cabinet is a passive speaker cabinet and requires no separate mains power.

Always use a proper speaker cable rather than a standard guitar/instrument cable between a valve amplifier head and speaker cabinet, and ensure the amplifier output and cabinet impedance are correctly matched before switching the amplifier on.

Connectivity & Rig Compatibility

The St. James EL34 works particularly well as the centre of a professional pedalboard rig. Boost, overdrive, fuzz, compression and wah pedals can sit before the amplifier, while the series effects loop provides a more suitable position for delay, modulation and other post-preamp effects.

For recording and live sound, USB audio, balanced XLR CabRig output and the headphone/line connection provide alternatives to placing a conventional microphone in front of the cabinet.

The separate-head format also gives you the option of using compatible alternative speaker cabinets when required, although the included 212VOC provides the visually and technically matched St. James configuration.

Fair Deal Music Verdict 🎵

★★★★★ 5/5

The Blackstar St. James 50 EL34 Head & 212VOC cabinet solves one of the biggest practical problems with a professional valve rig: weight.

You still get 50 watts of genuine EL34 power, a proper twin-12-inch speaker cabinet and the physical response expected from a serious stage amp, but Blackstar's lightweight head, Candlenut-ply cabinet and Celestion Zephyr speakers make the system dramatically easier to transport than the traditional valve-head-and-cab approach.

The integrated reactive load and CabRig are equally important. They mean this is not simply a lightweight gigging amp – it is also exceptionally well equipped for direct recording, headphones and modern silent-stage setups.

Best suited for: Gigging guitarists, blues/rock players, pedalboard users and professional home studios
Customers usually upgrade from: 1x12 valve combos, heavier traditional valve heads and mid-powered gigging amplifiers
Most commonly paired with: Pedalboards, boost/overdrive pedals, delay and modulation effects, recording interfaces and live PA systems
Our tip: Use Channel I as a clean pedal platform, then set Channel II around your core crunch sound and use the footswitchable boost as your additional lead stage.
Showroom feedback: The standout feature is not simply that St. James is light – it is that you can get a genuine 50W EL34 head and vertical 2x12 experience without the usual feeling that moving the rig is a two-person job.

Why Buy From Fair Deal Music?

When you buy from Fair Deal Music, you're choosing one of the UK's most established, independent family run music retailers since 1987.

Our Birmingham showroom is backed by a knowledgeable musician-led team who understand professional guitar equipment and complete amplifier rigs. Whether you're moving from a combo to your first head and cabinet, building a touring pedalboard setup or choosing between EL34 and 6L6 valve platforms, we're here to help you make the right choice.

When you shop with Fair Deal Music, you can buy with confidence thanks to:

• Expert advice from knowledgeable musicians

• Carefully checked new, used, pre-owned and ex-display equipment

• Competitive prices on leading music brands

• Secure UK-wide delivery

• Friendly support before and after your purchase

• A trusted independent UK music retailer with decades of experience

• A large Birmingham showroom where you can speak directly with our team

• Practical advice on amplifier heads, cabinets, pedals and complete live rigs

Trade In. Trade Up. Save More.

Thinking about upgrading? Your next piece of gear could cost less than you think.

We're always happy to consider part exchanges and trade-ins on a wide range of musical instruments and equipment. Whether you're looking to upgrade your guitar, keyboard, amplifier, drum kit or studio gear, your existing equipment could help reduce the cost of your next purchase.

Simply get in touch with our team for a no-obligation valuation and we'll be happy to discuss the options available.

It's an easy way to unlock the value of the gear you no longer use while making your next upgrade more affordable.

Frequently Asked Questions

Is the Blackstar St. James 50 EL34 a genuine valve amplifier?

Yes. It uses two ECC83 preamp valves and two EL34 power valves, with a genuine valve power stage at the heart of the amplifier.

What is the difference between the St. James EL34 and 6L6 models?

The EL34 model is voiced towards classic British-inspired crunch alongside clean tones and uses a footswitchable boost on Channel II. The 6L6 version is designed to move further into aggressive modern high-gain territory and uses a Voice function rather than the EL34 model's boost.

Can I use the St. James 50 EL34 at home?

Yes. The amplifier can switch from its full 50W output down to 2W, making it significantly easier to use in home and studio environments. Headphones and the built-in reactive-load/direct-output system provide additional options when speaker volume is impractical.

What does Sag mode do?

Sag mode changes the response of the amplifier's power supply to create a softer, more compressed feel associated with certain vintage valve amplifiers. It is designed as a playing-response option rather than simply another fixed reduced-wattage setting.

Can I record the St. James without putting a microphone in front of the cabinet?

Yes. Its integrated reactive load, CabRig speaker simulation and direct USB/XLR connectivity are designed specifically for recording and direct-output applications without relying entirely on a conventional cabinet microphone.

Can the St. James 212VOC cabinet run in stereo?

Yes. The cabinet provides stereo operation at 8 ohms per side, as well as 4-ohm and 16-ohm mono connections.

Why does the 212VOC have an open/closed-back option?

Changing the rear configuration alters the cabinet's projection and low-frequency behaviour. A closed-back configuration gives a more focused response, while opening the back allows more sound to radiate behind the cabinet and changes how it interacts with the room.

Is this rig suitable for pedals?

Yes. Channel I works particularly well as a clean valve foundation for pedals, and the amplifier includes a series effects loop with level switching for effects that are better placed after the preamp.