Description
Di Pacci — Dual-Boiler Commercial Espresso Machine — USA
La Marzocco GB5 S — 2, 3 & 4 Group
The La Marzocco GB5 S is the Linea's bigger, better-insulated sibling, built for high-volume cafes that want scales, a digital display and a water sensor on the bar.
Every GB5 S has dual insulated boilers, saturated groups and dual PID control, plus a digital display, 24V electronics and a sensor that reads the hardness and conductivity of incoming water. It comes in 2, 3 or 4 groups, each as semi-automatic (EE), auto-volumetric (AV) or AV with integrated scales.
Where the Linea Classic S keeps things simple, the GB5 S adds the features a busy multi-barista bar actually uses: Piero group caps for steadier flow, dimmable barista lights, an easy-rebuild steam valve serviced from the front, eco mode, and on the scales version, brew-by-weight with Drip Prediction built into the drip tray.
🔥 Insulated Dual Boilers
🌡️ Dual PID
⚖️ Scales Option
💧 Water Sensor
📱 La Marzocco App
✅ UL & NSF Certified
💳 Finance Available
✅ Tariffs & Duties Included
Best for: ☕ High-volume cafes · 🏪 Flagship stores · 🔥 Roasteries · 👥 Multi-barista bars · 🚚 Multi-site chains
Key Features of the GB5 S
- 🔥 Insulated dual boilers — separate brew and steam boilers, insulated to hold temperature and cut energy use.
- ⚖️ Integrated scales (AV with Scales) — shots stop by weight, and Drip Prediction in the drip tray accounts for the last drops after the pump stops.
- ☕ Piero group caps (AV) — a re-engineered water path and flow meter position for steadier flow and temperature.
- 💧 Water sensor — measures incoming water hardness and conductivity, so you know when filtration needs attention before scale builds up.
- 🔧 Easy-rebuild steam valve — serviced from the front of the machine, so a technician doesn't need to pull panels.
- 💡 Dimmable barista lights (AV) — three modes (eco, on, brewing) to light the shot as it pours.
EE, AV or Scales: Which Version?
All three versions share the same boilers, groups, dual PID and water sensor. The difference is how each shot is dosed.
- Semi-automatic (EE) — the barista starts and stops every shot. The lowest-cost GB5 S, for teams who dose by eye or external scale.
- Auto-volumetric (AV) — programmed doses stop each shot by volume, with Piero group caps and barista lights.
- AV with Scales — everything in the AV, plus scales in the drip tray so shots stop by weight rather than volume.
- Our pick: AV with Scales for specialty bars where yield matters; AV for high-volume milk-based service.
Weight is a more reliable target than volume, because crema and grind changes throw volume off. If your baristas already weigh every shot, the scales version takes that job off them.
GB5 S Specifications
| Model | La Marzocco GB5 S |
| Versions | Semi-automatic (EE), auto-volumetric (AV), AV with Scales |
| Group sizes | 2, 3 or 4 groups |
| Condition | Brand new |
| Boilers | Dual insulated boilers (separate brew and steam), dual PID |
| Groups | Saturated; Piero group caps on AV and AV with Scales |
| Brew boiler | 2 group: 3.4 L · 3 group: 5 L · 4 group: 2 × 3.4 L |
| Steam boiler | 2 group: 7 L · 3 group: 11 L · 4 group: 15 L |
| Width | 2 group: 30.3 in · 3 group: 38.2 in · 4 group: 47.6 in |
| Depth × height | 25.2 in × 18.5 in (all sizes) |
| Weight | 2 group: 149.9 lb · 3 group: 172 lb · 4 group: 231.5 lb |
| Voltage | 208–240V, single phase, 60 Hz |
| Circuit required | 2 group: 30 A · 3 group: 50 A · 4 group: 50 A |
| Heating elements | 2 group: 5,200 W · 3 group: 6,800 W · 4 group: 8,300 W |
| Display & electronics | Digital display, 24V electronics, USB for firmware updates |
| Water | Built-in water hardness and conductivity sensor |
| Connectivity | La Marzocco app compatible |
| Other features | Auto backflush, eco mode, easy-rebuild steam valve, clog-reducing flow restrictor |
| Special order | Pro Touch steam wands, cup warmer, high legs, custom RAL colors |
| Certifications | UL-197, NSF-4, CAN/CSA-C22.2 No. 109 |
Specifications from La Marzocco USA's GB5 S product sheet.
Compare Sizes & Versions
| Size | EE | AV | AV with Scales |
| 2 Group | $19,930 | $23,370 | $26,980 |
| 3 Group | $22,340 | $26,800 | $31,270 |
| 4 Group | $25,270 | $30,240 | $35,050 |
Di Pacci recommendation: a 2 or 3 Group AV with Scales is the sweet spot for a specialty cafe. Don't bother with the GB5 S if you don't need scales, a display or a water sensor; the La Marzocco Linea Classic S brews from the same dual-boiler, saturated-group design for less. If you want scales in a Linea body, look at the La Marzocco Linea PB.
Who the GB5 S Is For
- ✓ High-volume cafes running two or more baristas through long rushes.
- ✓ Specialty bars that want shots stopped by weight (AV with Scales).
- ✓ Operators who care about uptime — water sensing, auto backflush and a front-serviceable steam valve.
- ✓ Flagship and roastery bars where the machine is part of the room.
- ✓ Multi-site groups wanting app monitoring across stores.
- ✗ Small sites — there's no 1 group, and even the 2 group is 30.3 in wide and about 150 lb. Look at the 1 group Linea Classic S.
- ✗ Standard power — it needs a dedicated 30 A (2 group) or 50 A (3 and 4 group), 208–240V circuit.
- ✗ Sites without plumbing — this is a plumbed-in machine with a drain, no water tank.
- ✗ Pressure-profiling setups — the GB5 S has no paddle or flow control.
Why Buy From Di Pacci
Di Pacci has supplied coffee equipment since 2003, from brand-new La Marzocco machines to fully serviced pre-owned ones. Tariffs and duties are included in the price, orders ship US-wide by DHL, and our team can help with sizing, power and plumbing questions before you buy. Talk to our team about the right GB5 S for your bar.
GB5 S FAQ
What is the difference between the GB5 S EE, AV and AV with Scales?
The EE is semi-automatic, so the barista starts and stops each shot. The AV stops shots by programmed volume and adds Piero group caps and dimmable barista lights. The AV with Scales adds scales in the drip tray so shots stop by weight, with Drip Prediction allowing for the final drops.
What power does the GB5 S need?
It runs on 208–240V single-phase, 60 Hz. The 2 group needs a dedicated 30 A circuit, and the 3 and 4 group need 50 A. Have an electrician confirm your circuit before delivery.
Does the GB5 S need to be plumbed in?
Yes. It's a commercial machine with no water reservoir, so it needs a water supply line and a drain. Its built-in sensor reads incoming water hardness, but you still need water treatment matched to your local supply.
Is there a 1 group GB5 S?
No. The GB5 S comes in 2, 3 and 4 groups. For a single-group commercial La Marzocco, look at the 1 group Linea Classic S.
How is the GB5 S different from the Linea Classic S?
Both are dual-boiler, saturated-group machines. The GB5 S adds insulated boilers, a digital display, a water sensor, auto backflush, an easy-rebuild steam valve and a scales option, in a larger body. Call us on +1 (646) 774-0590 if you're deciding between them.
Is the GB5 S app compatible?
Yes. It connects to the La Marzocco app for dose, brew temperature and usage statistics, and has a USB port for firmware updates.
How big and heavy is the GB5 S?
All sizes are 25.2 in deep and 18.5 in tall. Widths are 30.3 in, 38.2 in and 47.6 in for 2, 3 and 4 groups, and weights are 149.9 lb, 172 lb and 231.5 lb.
Di Pacci — USA
Frequently Asked Questions
How long is the warranty on a coffee machine?
All Di Pacci products include a warranty on non-consumable parts. New machines carry 12–24 months, and used or pre-owned machines carry 3 months. Our skilled technicians are available for after-sales support throughout your warranty and beyond.
What is the shipping policy?
We ship US-wide via air freight, with a tracking number provided on every order. Shipping is calculated at checkout. If you'd like a delivery estimate before you buy, contact our team on +1 (646) 774-0590 or see our shipping policy.
Do I have to pay tariffs or customs duties?
No. All tariffs and customs duties are included in the price and covered by Di Pacci Coffee Company. There are no extra steps for you and no surprise fees on delivery — the price you see is the price you pay.
Are used machines tested before sale?
Yes. Every pre-owned, ex-demo, and ex-training-room machine is inspected and fully serviced by our qualified technicians before it ships — many go through a detailed multi-point safety check. They're cleaned, tested, and ready to work on arrival, so you get proven performance at a fraction of new-machine cost.
What is your returns policy?
We offer a 14-day return policy — you have 14 days after receiving your item to request a return. The item must be unused, in its original packaging, with proof of purchase, and a 30% restocking fee applies. Contact us first to start a return (items sent back without authorization can't be accepted). Sale items and gift cards are non-returnable. See our full return policy or email support@dipacciusa.com.
Do you provide after-sales support?
Yes. Our skilled technicians provide after-sales support to all customers. If you have a question about setup, servicing, or your machine after purchase, reach out any time at support@dipacciusa.com or +1 (646) 774-0590.
Recommended for You
- Choosing a selection results in a full page refresh.