When it comes to professional-grade chainsaws, few names inspire more confidence than STIHL and Husqvarna. Among their most powerful offerings, the STIHL MS 661 C-M and Husqvarna 390 XP stand tall as titans in the forestry and logging world. Both machines are built for heavy-duty use, packed with innovative features, and designed to tackle the most demanding jobs. But how do they compare head-to-head? Let’s break it down and determine which chainsaw might be better suited to your needs.
1. Engine Power and Performance
The STIHL MS 661 C-M is equipped with a 91.1 cc engine that delivers 7.2 horsepower, making it one of STIHL’s most powerful saws. It features the company’s advanced M-Tronic engine management system, which automatically adjusts the fuel-air mixture for optimal performance in varying conditions. This means that whether you’re cutting in high altitudes or cold weather, the saw adapts instantly without manual carburetor adjustments.
On the other hand, the Husqvarna 390 XP comes with a 88 cc engine producing about 6.5 horsepower. While it’s slightly less powerful than the MS 661, it still packs a punch. The 390 XP is known for its consistent performance, especially in large-scale felling operations, and is appreciated for its high torque over a wide RPM range.
Winner: STIHL MS 661 C-M – Slightly more power and smarter engine management give it the edge.
2. Weight and Ergonomics
Weight plays a crucial role in user fatigue, especially when the chainsaw is used for extended periods. The STIHL MS 661 C-M weighs approximately 16.5 lbs (7.5 kg) without fuel or bar and chain. It is relatively well-balanced and comes with anti-vibration technology to reduce operator fatigue.
The Husqvarna 390 XP is a bit heavier, coming in at around 17.4 lbs (7.9 kg) dry weight. However, Husqvarna’s LowVib® system does a great job of minimizing vibrations. While heavier, many users find it surprisingly comfortable during long cutting sessions, especially for felling large trees.
Winner: STIHL MS 661 C-M – Slightly lighter with excellent vibration damping.
3. Starting System and Ease of Use
STIHL’s ElastoStart and M-Tronic technologies simplify the starting process. The MS 661 C-M automatically adjusts to environmental conditions, reducing the need for manual tuning. The decompression valve also eases the start by reducing compression in the cylinder.
The Husqvarna 390 XP features Smart Start® technology, which reduces the resistance in the starter cord by up to 40%, and it has a decompression valve as well. However, it lacks the automatic fuel adjustment offered by STIHL’s M-Tronic system.
Winner: STIHL MS 661 C-M – Smarter and more automated start-up and tuning process.
4. Cutting Capability and Bar Options
Both saws support long bars, ideal for felling big trees. The MS 661 C-M supports bars up to 36 inches, while the 390 XP can handle up to 28 or 32 inches, depending on the configuration and region.
While both deliver tremendous cutting speed, the MS 661’s extra horsepower provides a slight advantage in cutting efficiency, especially when using longer bars. However, the Husqvarna 390 XP still offers robust torque and maintains consistent power through tough cuts.
Winner: STIHL MS 661 C-M – More horsepower allows for slightly better performance with longer bars.
5. Durability and Maintenance
Both chainsaws are built to withstand tough work environments. STIHL chainsaws are known for their rugged, no-nonsense construction. The MS 661 C-M is built with professional forestry work in mind and features a HD2 air filter, which provides excellent protection and extends engine life.
The Husqvarna 390 XP is also extremely durable and has a well-sealed magnesium crankcase for withstanding high RPMs. Its quick-release air filter and side-mounted chain tensioner simplify maintenance, making it easier for users to keep the saw running at peak condition.
Winner: Tie – Both are extremely durable and designed for professional use.
6. Fuel Efficiency and Emissions
STIHL’s MS 661 C-M benefits from a 2-MIX engine which significantly reduces fuel consumption and emissions. The combination of M-Tronic and this engine allows it to run cleaner and more efficiently without sacrificing performance.
Husqvarna’s 390 XP uses X-Torq® technology, which also reduces fuel use and emissions. However, STIHL’s system is slightly more advanced in its automatic adjustments, helping it stay within emission regulations while providing peak performance.
Winner: STIHL MS 661 C-M – Better overall efficiency and smarter fuel management.
7. Price and Value
Price is always a consideration. The STIHL MS 661 C-M typically retails higher than the Husqvarna 390 XP. This higher price reflects its advanced engine technology and slightly more powerful output. On the other hand, the 390 XP offers solid performance at a slightly more budget-friendly price, making it a good value for professionals who want reliability without breaking the bank.
Winner: Husqvarna 390 XP – More budget-friendly while still being a top-tier saw.
8. User Experience and Community Feedback
Online reviews and user experiences tend to show high satisfaction for both models. STIHL users often praise the MS 661 C-M’s reliability, power, and ease of use. Its automatic tuning and responsive power delivery make it a favorite among professionals who don’t want to deal with manual adjustments.
Husqvarna fans appreciate the ruggedness and torque of the 390 XP, especially in hardwood cutting. Some users note that it’s easier to maintain due to its simpler design, and it’s often a go-to choice in logging camps and forestry operations where spare parts are readily available.
Winner: Tie – Both have loyal followings and excellent reputations.
Final Verdict
When comparing the STIHL MS 661 C-M and the Husqvarna 390 XP, you’re really looking at two excellent professional chainsaws. Here’s a quick summary:
| Feature | Winner |
|---|---|
| Engine Power | STIHL MS 661 C-M |
| Weight & Ergonomics | STIHL MS 661 C-M |
| Ease of Start & Use | STIHL MS 661 C-M |
| Cutting Performance | STIHL MS 661 C-M |
| Durability | Tie |
| Fuel Efficiency | STIHL MS 661 C-M |
| Price/Value | Husqvarna 390 XP |
| User Experience | Tie |
If you want the most powerful, efficient, and technologically advanced saw, the STIHL MS 661 C-M is the better choice. It excels in power, smart features, and overall cutting performance.
However, if you’re looking for reliable, professional-grade power at a slightly lower cost, the Husqvarna 390 XP remains a solid and trustworthy option.
Ultimately, your decision may come down to brand loyalty, local dealer support, and specific use cases. Either way, you’re getting one of the best saws available today.
