Intro

Dunlop launched their new SX 300 racquet line in late 2019, which was their first new range since the CX. Like other frames in the SX line, the 300 LS benefits from the new Spin Boost Grommets, which help the strings move appropriately for increased spin levels. It also includes Sonic Core technology with Infinergy — an elastic material that provides an increase in comfort. This racquet also has wider crosses in the upper part of the stringbed, aka Dunlop’s PowerGrid StringTech system, producing a more responsive feel on shots hit in the upper area.

The SX 300 LS has a standard length and comes in slightly lighter than the SX 300 at 10.7 oz. strung. It has a stiffer flex of 68, has easy power, and is slightly more maneuverable than the SX 300 and 300 Tour. This racquet features a 100 square inch head size, a 318 swing weight, and an open 16 x 19 string pattern. I was excited to see how the 300 LS would play compared to other members of the SX family.

Groundstrokes

From the baseline this racquet felt smooth and crisp at impact. Whether I hit forehands or backhands, I felt like I could get good power without losing any control. This is the outcome of the new grommet technology that helped me create more topspin. I could hit the ball hard and still land it inside the baseline. With the 300 LS, I also had good touch on my slice and had no problems hitting down the line or crosscourt. I used the slice to control the rally, and it especially worked when I needed to absorb and redirect pace.

Volleys

I really liked how the 300 LS felt at the net. Despite weighing under 11 ounces strung, this frame provided exceptional stability. I was able to control my volleys consistently and easily maneuver the racquet into place. I had no issue reaching to my right or left to block the ball back. Plus, the racquet felt stable and strong if I needed to angle a short touch volley in any direction. When I charged the net, I also had enough power on my volleys to finish the point quickly. As long as you make contact out in front of your body, you can place the volley where you want it to go.

Serves

I didn’t feel as comfortable serving with the 300 LS. It was more difficult for me to hit targets out wide and down the “T”. However, I could generate power on my flat serves because of the racquet’s lighter weight. Most of my flat serves went into the middle of the box and jammed the body of my opponent. I felt like this racquet is better suited for players who rely on big first serves as opposed to consistent topspin or slice serves. If I tried to take off a bit of pace, it didn’t feel as solid as when I just totally went for it.

Overall

The SX 300 LS generates loads of spin with controlled accuracy. Full swings provide ample power from the baseline, and there is tremendous spin potential to bring your shots down. It has great stability at the net and produces good pop on flat serves. While this racquet felt a little too stiff for me, it’s a great option for intermediate to advanced players who don’t want to experience arm fatigue from a heavy frame. If you’re searching for a light, spin-friendly racquet with precise targeting, give the Dunlop SX 300 LS a try.

NOTE: I playtested this racquet using Dunlop Silk Pro strung at 55 lbs.

About the Reviewer: Chris Griesedieck played high school tennis in the St. Louis area and competed in USTA junior tournaments in the Missouri Valley section. Today he is an active 4.5 USTA tournament player and is a PTR certified coach.