S1 Vivaldi II

Introduction

The S1 Vivaldi II, a flagship model in La Spaziale’s prosumer line, represents the culmination of this decades-long expertise. Launched as an upgrade to the original S1, the Vivaldi II aims to bring commercial-grade performance into a package suitable for the home or small café environment.

Brief history of La Spaziale

La Spaziale was founded in 1969 in Bologna, Italy, by industry veterans whose experience with espresso coffee machines dated back to 1947. This rich heritage formed the foundation of a company committed to creating products defined by quality and innovation.

For over five decades, La Spaziale has remained true to its original philosophy, dedicating itself daily to delivering exceptional in-cup quality through advanced technical solutions. What began as a small factory in Bologna has evolved into an impressive industrial facility spanning more than 6,000 square meters.

La Spaziale's enduring success stems from its unwavering dedication to the art and science of espresso, combining Italian craftsmanship with forward-thinking engineering. Today, La Spaziale continues to honor its traditions while embracing technological advancements to meet the demands of modern coffee professionals worldwide.

Overview of the S1 Vivaldi II 

In the competitive landscape of high-end home espresso machines, the S1 Vivaldi II positions itself as a formidable contender. It goes toe-to-toe with respected models like the Rocket R58, the ECM Synchronika, and the Profitec Pro 700. What sets the Vivaldi II apart is its unique combination of features, including a dual boiler system, rotary pump, and programmable pre-infusion, all packed into a relatively compact footprint.

The S1 Vivaldi II targets the serious home enthusiast who demands café-quality espresso and milk-based drinks, as well as small businesses looking for a reliable workhorse that can handle moderate volume without compromising on quality. While certainly in the upper echelons of home machines, it positions it as a long-term investment for those serious about their coffee.

Specifications and Technical Details

The La Spaziale S1 Vivaldi II is a powerhouse of engineering, packed with features that cater to the needs of serious coffee enthusiasts.

Dimensions and weight

• ‍Dimensions(LxPxH): 415mm x 415mm x 385mm‍
• Weight: 28kg

Boiler specifications

One of the standout features of the S1 Vivaldi II is its dual boiler system:

• Steam Boiler: A generous 2.5-litre boiler dedicated to steam and hot water production. This large capacity ensures consistent steam pressure for milk frothing, even during extended use.
• Brew Boiler: A compact 0.45-litre boiler specifically for brewing espresso. This smaller, dedicated boiler allows for precise temperature control and quick recovery between shots.

Both boilers are constructed from durable stainless steel, ensuring longevity and thermal stability.

Pump type

The S1 Vivaldi II utilises a rotary vane pump, a significant upgrade from the vibratory pumps found in many home machines. This commercial-grade pump provides consistent pressure and allows for direct plumbing to a water line, though it can also operate with the internal reservoir.

Electrical requirements

The machine operates on standard 230V/50Hz power, drawing 1250 watts for the steam boiler and 800 watts for the group boiler. An interesting feature is the ability to switch between 15 amp and 20 amp modes, allowing users to adapt the machine to their home’s electrical capacity.

These technical specifications underscore La Spaziale’s commitment to bringing commercial-grade performance to the prosumer market. The combination of dual boilers, a rotary pump, and flexible power options sets the stage for the S1 Vivaldi II to deliver exceptional espresso and milk-based drinks.

Design and Build Quality

The La Spaziale S1 Vivaldi II doesn’t just perform well; it’s also built to impress visually and structurally.

Materials used

La Spaziale has spared no expense in the construction of the S1 Vivaldi II. The machine boasts a robust stainless steel body, which not only provides durability but also contributes to its premium aesthetic. The internal components, including the boilers and grouphead, are also crafted from high-grade stainless steel, ensuring longevity and resistance to corrosion.

The portafilter is made from chrome-plated brass, a material chosen for its excellent heat retention properties. This helps maintain temperature stability during extraction, a crucial factor in producing consistent espresso shots.

Aesthetic considerations

The S1 Vivaldi II sports a sleek, modern design that would look at home in both contemporary and traditional kitchen settings. Its polished stainless steel exterior exudes a professional appearance, while the clean lines and minimalist control panel give it a sophisticated edge.

The machine is available in three colour options: Nero (black), Rosso (red), and Argento (silver). This variety allows users to choose a model that best fits their kitchen decor or personal taste.

The front panel features a clear, easy-to-read pressure gauge and temperature display, adding both functionality and visual interest. The cup warming tray on top of the machine is not just practical but also adds to the overall professional look of the unit.

Footprint and space requirements

Despite its commercial-grade capabilities, the S1 Vivaldi II has been designed with home users in mind. Its compact footprint means it can fit comfortably on most kitchen countertops without dominating the space.

It’s worth noting that you’ll need to factor in some additional space for accessories like your grinder, knock box, and tamping station. You’ll also want to ensure there’s enough clearance above the machine to comfortably access the water tank and cup warming tray.

The machine’s depth is relatively shallow compared to some competitors, which can be a significant advantage in kitchens where counter depth is at a premium.

Core Functionality

The La Spaziale S1 Vivaldi II is designed to deliver cafe-quality espresso and milk-based drinks in a home or small commercial setting.

Espresso extraction process

At the heart of the S1 Vivaldi II is its ability to produce exceptional espresso. The machine uses a 53mm group head, which is slightly smaller than the industry-standard 58mm. While this might require specific baskets and tampers, it allows for faster heating and better temperature stability.

The S1 Vivaldi II features programmable volumetric dosing, allowing users to set precise shot volumes. This, combined with the machine’s pre-infusion capability, enables consistent and repeatable extractions. The pre-infusion can be programmed for up to 5 seconds, which helps to ensure even extraction by gently saturating the coffee puck before full pressure is applied.

Temperature stability data

Temperature stability is crucial for consistent espresso extraction, and the S1 Vivaldi II excels in this area. The PID (Proportional-Integral-Derivative) temperature control system maintains the brew water temperature within a tight range of ±0.5°C. This level of precision allows users to experiment with different temperature settings to optimise extraction for various coffee beans.

The machine also features an innovative offset differential temperature adjustment. This allows users to fine-tune the actual brew temperature, accounting for any heat loss between the boiler and the group head.

Pressure profiling capabilities

While the S1 Vivaldi II doesn’t offer full pressure profiling like some higher-end machines, it does provide a degree of control over the extraction pressure. The rotary pump allows for stable pressure throughout the shot, typically set at 9 bars. Advanced users can adjust this pressure using the expansion valve, though this requires some technical know-how.

The programmable pre-infusion feature also allows for a form of basic pressure profiling, as users can control the initial low-pressure phase of the extraction.

Steam wand performance metrics

The S1 Vivaldi II’s steam capabilities are impressive, thanks to its dedicated 2.5-litre steam boiler. The machine comes standard with a four-hole steam tip, which allows for rapid and efficient milk frothing. Users report being able to steam enough milk for a latte in about 20-25 seconds.

The steam wand is fully articulated, providing excellent range of motion for various pitcher sizes. The steam pressure can be adjusted between 0.9 and 1.4 bar, allowing users to fine-tune their steaming technique.

One notable feature is the ‘no-burn’ steam wand, which remains cool to the touch even after extended use. This not only enhances safety but also prevents milk from baking onto the wand, making cleaning easier.

The S1 Vivaldi II’s core functionality demonstrates why it’s a favourite among home enthusiasts and small cafe owners alike. Its ability to consistently produce high-quality espresso, coupled with its powerful steaming capabilities, makes it a versatile and reliable machine for a wide range of coffee drinks.

User Experience

The La Spaziale S1 Vivaldi II is designed to deliver a professional-grade espresso experience in a home-friendly package. 

Learning curve

For newcomers to the world of prosumer espresso machines, the S1 Vivaldi II presents a moderate learning curve. While it’s more complex than a basic home espresso maker, it’s designed to be approachable for enthusiasts.

The machine’s interface is relatively straightforward, with clearly labelled buttons for different functions. However, mastering features like programmable pre-infusion and temperature adjustment may take some time and experimentation.

New users should expect to spend a few weeks getting comfortable with the machine’s capabilities and dialling in their preferred settings. La Spaziale provides a comprehensive user manual, and there’s a lot of online resources and user forums to help flatten the learning curve.

Daily operation workflow

Once familiar with the machine, users typically find the daily workflow to be smooth and efficient. The S1 Vivaldi II’s dual boiler system means it’s ready to brew and steam simultaneously, reducing wait times between drinks.

A typical workflow might look like this:

• Turn on the machine (or have it switch on automatically with the optional timer).
• Allow about 15-20 minutes for both boilers to reach operating temperature.
• Grind coffee and prepare the portafilter.
• Pull a shot using the programmable volumetric controls.
• Steam milk (if needed) while the shot is extracting.
• Quick wipe of the steam wand and a flush of the group head.
• Ready for the next drink.

The rotary pump’s quiet operation and the machine’s overall build quality contribute to a pleasant user experience, especially for those brewing first thing in the morning.

Ease of adjustments and customisation

The S1 Vivaldi II offers a good balance between ease of use and customisation potential. Key adjustments include:

• Temperature: Easily changed via the control panel in 1°C increments.
• Shot volume: Programmable for both single and double shots.
• Pre-infusion: Can be set between 1-5 seconds.
• Steam pressure: Adjustable between 0.9 and 1.4 bar.

More advanced adjustments, like changing the pump pressure, require some technical skill and are typically not part of daily operation.

The machine also offers an ‘Extreme Temperature Set Function’, allowing users to push the temperature range beyond the standard 91-97°C if desired. This level of customisation is appreciated by experienced users who like to experiment with different coffee varieties and roast levels.

Maintenance and Longevity

The La Spaziale S1 Vivaldi II is built to last, but like any high-end espresso machine, it requires proper care and maintenance to ensure optimal performance over time.

Regular cleaning requirements

Daily maintenance of the S1 Vivaldi II is straightforward and crucial for consistent performance:

• After each use, wipe the steam wand with a damp cloth and purge it to prevent milk residue build-up.
• At the end of each day, backflush the group head with water to remove coffee oils.
• Clean the drip tray and empty the drain box regularly.

Weekly maintenance tasks include:

• Backflushing with a proper espresso machine detergent.
• Cleaning the shower screen and group gasket.
• Wiping down the exterior of the machine.

La Spaziale recommends using filtered water to prevent scale build-up, which can extend the time between descaling operations.

Long-term maintenance needs

For long-term care, the S1 Vivaldi II requires:

• Descaling: Frequency depends on water hardness, but typically every 3-6 months for home users.
• Group gasket replacement: Usually annually or when signs of wear appear.
• Shower screen replacement: Every 12-18 months, depending on use.
• Boiler safety valve check: Recommended annually by a qualified technician.

The machine’s build quality means that with proper care, major components like pumps and boilers can last many years before needing replacement.

Availability of parts and service

La Spaziale has a good reputation for parts availability. Most wear items like gaskets, shower screens, and valves are readily available from espresso equipment retailers.

For more complex repairs, La Spaziale has a network of authorised service centres in many countries. However, the availability of local technicians may vary depending on your location.

It’s worth noting that the S1 Vivaldi II’s commercial-grade components, while more durable, can be more expensive to replace than those in consumer-grade machines. However, this is offset by their longer lifespan and better performance.

Performance in Various Scenarios

The La Spaziale S1 Vivaldi II is designed to handle a variety of coffee-making scenarios.

Single shots vs. double shots

The S1 Vivaldi II comes with both single and double shot baskets, and its performance is commendable in both scenarios:

Single Shots 

Despite the trend towards double shots in many cafes, the S1 Vivaldi II excels at single shot extraction. The 53mm portafilter allows for a thinner puck, which can lead to more even extraction for single shots.

Double Shots

This is where the machine truly shines. The thermal stability and pressure consistency of the S1 Vivaldi II result in rich, full-bodied double shots. The programmable volumetric dosing ensures consistency across shots, which is particularly useful when preparing multiple drinks.

Light vs. dark roasts

The S1 Vivaldi II’s temperature control and pre-infusion capabilities make it versatile enough to handle both light and dark roasts effectively:

Light Roasts

These often benefit from higher brewing temperatures and longer pre-infusion times. The S1 Vivaldi II’s adjustable brew temperature (up to 97°C) and programmable pre-infusion allow users to extract the delicate, fruity notes often present in light roasts.

Dark Roasts

For darker roasts, which extract more easily, users can lower the temperature and reduce pre-infusion time. This helps to avoid over-extraction and bitter notes. The machine’s stability ensures that even at lower temperatures, shots remain consistent.

Performance with milk-based drinks

The S1 Vivaldi II truly excels when it comes to milk-based drinks:

Steaming Power

The 2.5-litre steam boiler provides ample steam power for creating microfoam. Users report being able to steam milk for a latte in 20-25 seconds, which is on par with commercial machines.

Milk Texture

The four-hole steam tip allows for fine control over milk texturing. With practice, users can achieve everything from silky microfoam for lattes to drier foam for cappuccinos.

Workflow

The dual boiler system allows for simultaneous brewing and steaming, which is a significant advantage when preparing multiple milk-based drinks. This feature makes the S1 Vivaldi II particularly suitable for entertaining or light commercial use.

Temperature Management

The machine maintains steam pressure even during extended use, ensuring consistent milk texture across multiple drinks.

It’s worth noting that the transition from steaming to brewing is smooth, with minimal wait time, thanks to the separate boilers.

Comparative Analysis

To truly understand the La Spaziale S1 Vivaldi II’s position in the market, it’s essential to compare it with other machines in its class. This comparison will help potential buyers understand how it stacks up against its competitors.

Objective comparison with similar machines in its class

The S1 Vivaldi II’s main competitors include the Rocket R58, the ECM Synchronika, and the Profitec Pro 700. All of these are dual-boiler machines aimed at the prosumer market.

Temperature Stability

The S1 Vivaldi II holds its own in this category, with its PID-controlled boilers providing excellent temperature stability. However, the ECM Synchronika and Profitec Pro 700 offer slightly more advanced PID systems with digital displays.

Pressure Profiling

While the S1 Vivaldi II offers programmable pre-infusion, it lacks the full pressure profiling capabilities found in the Rocket R58 and some versions of the ECM Synchronika. This might be a consideration for users who want to experiment extensively with pressure during extraction.

Build Quality

All machines in this class boast excellent build quality. The S1 Vivaldi II’s commercial-grade components match up well with its competitors, though some users prefer the more traditional E61 group head found on the Rocket and ECM machines.

Size

The S1 Vivaldi II has a slight edge in terms of compactness. Its smaller footprint makes it more suitable for kitchens where space is at a premium.

User Interface

The S1 Vivaldi II’s interface is straightforward and user-friendly. While it lacks the digital displays found on some competitors, many users appreciate its simplicity and reliability.

Steam Power

The S1 Vivaldi II’s steam performance is on par with or better than most of its competitors, thanks to its large steam boiler and efficient four-hole tip.

Price-to-feature ratio

The S1 Vivaldi II sits in the middle of the price range for prosumer dual-boiler machines. It offers excellent value considering its features:

• The dual boiler system and PID temperature control match more expensive machines.
• Its rotary pump is a feature often reserved for pricier models.
• The build quality and use of commercial-grade components justify the price point.
• The programmable pre-infusion and volumetric dosing add significant value.

It’s worth noting that for a similar price, some competitors offer features like full pressure profiling or more advanced digital interfaces. The S1 Vivaldi II counters with its reputation for reliability and consistency.

When considering the price-to-feature ratio, it’s also important to factor in the machine’s longevity. The S1 Vivaldi II’s durability and the availability of parts for maintenance contribute to its long-term value.

Long-term Ownership Considerations

When investing in a high-end espresso machine like the La Spaziale S1 Vivaldi II, it’s crucial to consider the long-term aspects of ownership.

Resale value

The S1 Vivaldi II tends to hold its value well in the second-hand market, which is a testament to its build quality and reputation. Several factors contribute to this:

• Brand reputation: La Spaziale is known for producing durable, commercial-grade machines.
• Build quality: The use of high-quality components means these machines often have a long lifespan.
• Timeless design: The classic look of the S1 Vivaldi II doesn’t quickly become outdated.

Please note that the resale market for prosumer espresso machines can be relatively niche. While you may not recoup your entire initial investment, well-maintained S1 Vivaldi II machines typically fetch a good price relative to their original cost.

Warranty information

La Spaziale offers a two-year warranty on the S1 Vivaldi II for home use, covering both parts and labour. This is fairly standard for machines in this class. Some key points to consider:

• The warranty is only valid if the machine is installed and used according to the manufacturer’s instructions.
• Regular maintenance and use of appropriate water (filtered or treated) are typically required to keep the warranty valid.
• For commercial use, the warranty period may be shorter, usually one year.
• The warranty might be voided if the product has been damaged by abuse, neglect, or modification.

It’s always advisable to check the specific warranty terms with your retailer, as they may offer extended warranty options.

User community and support resources

One of the strengths of owning an S1 Vivaldi II is the robust user community and wealth of support resources available:

• Online forums: Websites like Home-Barista.com and CoffeeGeek.com have active communities of S1 Vivaldi II owners who share tips, troubleshooting advice, and modifications.
• Dedicated resources: There are websites specifically dedicated to La Spaziale machines, such as S1Cafe.com, which offer a wealth of information and user experiences.
• YouTube tutorials: Many users and coffee enthusiasts have created detailed video guides covering everything from basic operation to advanced maintenance.
• Retailer support: Reputable retailers often provide excellent after-sales support, including advice on machine operation and maintenance.
• Manufacturer support: La Spaziale has a network of authorised service centres in many countries, though availability may vary depending on your location.

This strong community and support network can be invaluable for long-term owners, providing resources for troubleshooting, maintenance, and getting the most out of the machine over time.

Potential Limitations

While the La Spaziale S1 Vivaldi II is a highly capable machine, it’s important to consider scenarios where it might not be the ideal choice. Understanding these limitations can help you make an informed decision.

Scenarios where the machine might not be ideal

• Limited counter space: Despite its relatively compact design for a dual-boiler machine, the S1 Vivaldi II still requires a fair amount of counter space (it may be too large for very small kitchens or those with limited worktop area).
• Plumbing requirements: The machine is designed to be plumbed in, which might be a limitation for users who can’t or don’t want to modify their kitchen plumbing. While it’s possible to use the machine with its reservoir, this isn’t its optimal setup and may impact the convenience of use.
• High-volume commercial use: While suitable for home use and light commercial applications, the S1 Vivaldi II may struggle in high-volume café environments. Businesses expecting to serve a large number of drinks in quick succession might need to look at more robust commercial options.
• Pressure profiling enthusiasts: For users who are deeply interested in experimenting with pressure profiling, the S1 Vivaldi II’s capabilities might be limiting. While it offers programmable pre-infusion, it doesn’t provide the same level of pressure control throughout the shot as some competitors.
• 53mm portafilter: The non-standard 53mm portafilter size might be a drawback for some users. It limits the availability of aftermarket baskets and tampers compared to the more common 58mm size.
• Learning curve for beginners: While not overly complex, the S1 Vivaldi II might be overwhelming for complete beginners to espresso making. Those new to the hobby might find simpler, single-boiler machines more approachable initially.
• Budget constraints: The S1 Vivaldi II represents a significant investment. Users on a tighter budget might find better value in less expensive single-boiler or heat exchanger machines.
• Lack of visual brew pressure gauge: Unlike some competitors, the S1 Vivaldi II doesn’t have a visible brew pressure gauge on the front panel. This might be a limitation for users who like to monitor pressure during extraction visually.
• Minimal technological features: For those interested in machines with more tech features like Bluetooth connectivity or programmable wake-up times, the S1 Vivaldi II’s more traditional approach might feel limiting.
• Aesthetic preferences: While many appreciate its professional look, the S1 Vivaldi II’s design might not appeal to those seeking a more traditional Italian espresso machine aesthetic with E61 group heads and lever-operated controls.

It’s important to note that many of these limitations are subjective and may not be issues for all users. The S1 Vivaldi II’s strengths in temperature stability, steam power, and build quality make it an excellent choice for many scenarios.

Consumer Feedback Summary

To provide a well-rounded view of the La Spaziale S1 Vivaldi II, it’s crucial to consider the experiences of actual users.

Overview of user reviews 

The S1 Vivaldi II generally receives very positive reviews from users, with most rating it 4 or 5 stars out of 5. Users frequently praise the machine for its consistency, build quality, and the quality of espresso it produces. Many reviewers are home enthusiasts who have upgraded from entry-level machines, while others are small business owners using the machine in light commercial settings.

Common praise and criticisms

Praise:

• Temperature stability: Many users report excellent shot-to-shot consistency, attributing this to the machine’s temperature stability.
• Steam power: The steam capabilities of the S1 Vivaldi II are frequently highlighted as a standout feature, with users praising the speed and quality of milk texturing.
• Build quality: The robust construction and use of commercial-grade components are often mentioned as key selling points.
• Compact size: For a dual-boiler machine, many users appreciate its relatively small footprint.
• Ease of use: Once set up, users find the machine straightforward to operate on a daily basis.
• Quiet operation: The rotary pump is often praised for its quiet performance compared to vibratory pumps.
• Consistency: Users report being able to pull consistent shots day after day, which is crucial for developing barista skills.

Criticisms:

• Learning curve: Some users find the initial setup and dialing in process challenging, particularly those new to prosumer machines.
• 53mm portafilter: The non-standard size is occasionally mentioned as a limitation, particularly when it comes to finding accessories.
• Aesthetics: While many appreciate the professional look, some users wish for a more traditional Italian espresso machine design.
• Price: A few users feel that the machine is expensive, particularly when factoring in the cost of a suitable grinder.
• Plumbing requirement: Some users find the need for direct plumbing inconvenient, although this is also seen as a positive by others.
• Limited pressure profiling: Advanced users sometimes wish for more control over pressure during extraction.
• Warm-up time: A few users note that the machine takes 15-20 minutes to fully heat up, which can be inconvenient for those in a hurry.

The consensus among users is overwhelmingly positive. Many describe the S1 Vivaldi II as a “workhorse” that consistently delivers excellent espresso and milk-based drinks. The criticisms tend to be minor and often reflect personal preferences rather than significant flaws in the machine’s design or performance.

Long-term users particularly praise the machine’s durability and the quality of support from both La Spaziale and the user community. Many report using their machines daily for years without significant issues, further justifying the initial investment.

Conclusion

The La Spaziale S1 Vivaldi II stands as a formidable contender in the prosumer espresso machine market, offering a compelling blend of commercial-grade performance and home-friendly features.

Recap of key points

• ‍Temperature Stability - The S1 Vivaldi II’s dual boiler system and PID control deliver exceptional temperature stability, resulting in consistent, high-quality espresso shots.‍
• Steam Power - With its large steam boiler and efficient four-hole tip, the machine excels in milk steaming, making it ideal for latte and cappuccino enthusiasts.‍
• Build Quality - Constructed with commercial-grade components, the S1 Vivaldi II is built to last, justifying its position as a long-term investment.‍
• Compact Design - Despite its professional capabilities, the machine maintains a relatively small footprint, making it suitable for home kitchens.‍
• User Experience - While there is a learning curve, users generally find the machine straightforward to operate once familiar with its features.‍
• Limitations - The 53mm portafilter, plumbing requirements, and lack of advanced pressure profiling may be drawbacks for some users.‍
• Long-term Value - Strong resale value, a robust user community, and excellent durability contribute to the machine’s appeal as a long-term investment.

Suggestions for further research

For those considering the La Spaziale S1 Vivaldi II, we recommend:

• Hands-on experience: If possible, try the machine in person at a local retailer or café.
• Grinder pairing: Research suitable grinders to pair with the S1 Vivaldi II, as the grinder is equally crucial for espresso quality.
• User forums: Explore dedicated forums like Home-Barista.com or S1Cafe.com to read about long-term user experiences.
• Plumbing considerations: Evaluate your space and willingness to plumb in the machine, as this can affect the overall user experience.
• Competitor comparison: Consider side-by-side comparisons with machines like the Rocket R58 or ECM Synchronika to ensure the S1 Vivaldi II best meets your specific needs.

The La Spaziale S1 Vivaldi II proves to be a highly capable and reliable espresso machine, well-suited to dedicated home enthusiasts and small café environments. While it may not offer every cutting-edge feature available in the market, its balance of performance, durability, and user-friendliness makes it a worthy contender for anyone serious about their coffee.

The S1 Vivaldi II is not just a machine; it’s an investment in the craft of espresso. For those willing to embrace its learning curve and leverage its capabilities, it promises to be a faithful companion on the journey to espresso perfection.