Our ECA-XR Pearl cover stock combined with the Quantum Mushroom High RG Asymmetric core gives strong hooking motion with excellent pin carry on medium lane conditions. PERFORMANCE INDEX PRO: Brunswick’s most advanced technology. The strongest core and cover combinations we offer. FLIP: Balls that skid through the front part of the lane with the strongest change of direction down the lane. Balls with higher numbers will have a stronger change of direction. REACTION SHAPE STRENGTH: 80 The higher the number the stronger the reaction shape – with 1 being the least and 100 the most. QUANTUM BIAS PEARL CORES The Quantum series has been designed with 3.5 times more cover stock for improved durability, performance, longevity, and incredible hitting power. The enhanced Coefficient of Restitution results in the pins flying faster for greater pin action and more strikes.
| Line | Quantum |
|---|---|
| Color | Ultramarine |
| Coverstock | ECA-XR Pearl Reactive |
| Core | Quantum Mushroom High RG Asymmetric |
| RG | 2.563 |
| Differential | 0.052 |
| Intermediate Diff | 0.013 |
| Factory finish | 500 Siaair / Crown Factory Compound |
| Weights | 14 thru 16lbs |
1 Review
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Pba024156
I personally altered the Surface to 1500 SiaAir - I felt at Box finish the ball may rev up to early and burn out. That's been my experience numerous times the last couple of years when a ball is at 500 Box. So at 1500 I felt I saw exactly what I hunting for and that this ball was true to what has consistently been my experience with Quantum's over the years (Smooth, Predictable, Hard Hitting). The Bias Pearl simply continues in that line and gives me an Asym that rounds out my 4 Ball Asym Bag (KingPin, Katana, Tenacity and Now Bias Pearl)
