Jelco Arm Stub and Counterweight Set
Best upgrade for audiophiles seeking precise tonearm balance and improved fidelity.
Enhance your vinyl playback with this precision-engineered tonearm upgrade kit. It replaces the original arm stub with a solid stainless steel component, designed to mitigate energy loss and improve audio fidelity. The set includes multiple counterweights, allowing for meticulous mass tuning to perfectly balance even heavy cartridges. A non-marring set screw protects the VTA lock mechanism, ensuring durability and optimal performance. This upgrade offers greater compatibility and a refined listening experience for compatible tonearms.
$289.00
Owner Satisfaction
4.7
/ 5
Category Rank
231
/ 1986
#231 in Turntable Accessories
Price vs Category Average
-77%
Below average
Stub Material
316
/ -stainless steel
Who it's for
- Vinyl enthusiasts requiring better tracking for demanding record grooves
- Owners wanting superior durability over standard stock components
- Audiophiles seeking tighter bass and improved midrange clarity
Who should skip it
- Collectors preferring high-compliance cartridges for their turntable setup
- Budget-conscious listeners wary of high-cost aftermarket upgrades
- Novice users uncomfortable with complex tonearm disassembly and calibration
Performance breakdown
Vibration Damping
Stainless steel construction significantly reduces unwanted energy resonance in the tonearm.
Cartridge Compatibility
Modular counterweights allow for precise balancing of diverse, heavy-mass cartridges.
Build Integrity
Precision-machined 316 and 303 stainless steel offers superior structural rigidity.
VTA Protection
Brass-tipped set screw prevents marring of delicate tonearm adjustment mechanisms.
Installation Complexity
Requires careful mechanical adjustment, though professional installation is a helpful option.
Sonic Fidelity
Refined mass distribution yields a tighter, more articulate audio presentation.
Key Specs
Stub Material
316-stainless steel
Counterweight Material
303-stainless steel
New Arm Stub Length
2 inches (51mm)
Counterweight Diameter
1.25 inches (32mm)
Compatibility
Jelco SA-250, 850L, and 950L models
VTA Lock Screw Tip
Brass
Original Stub Length
Approximately 1.75 inches (44.5mm)
Material
Aluminum, Carbon Fiber
Know before you buy
The solid 316-stainless steel construction provides superior energy mitigation at the rear of the tonearm. By replacing the stock material, it reduces unwanted resonances and vibrations, leading to a more stable and refined audio signal.
This upgrade kit is precision-engineered for the Jelco SA-250, 850L, and 950L tonearm models. Please verify your specific model number before installation to ensure a proper fit.
Yes, the set includes multiple counterweights designed specifically to accommodate a wider range of cartridge masses. This allows for more precise mass tuning, ensuring your tonearm remains perfectly balanced even with heavier, high-end cartridges.
The set screw features a brass tip designed to protect your VTA lock mechanism from scratches or deformation. It provides a secure hold without damaging the finish or integrity of your tonearm's adjustment components.
While the installation is straightforward for those comfortable with tonearm adjustments, Galibier Design does offer an optional professional installation service. If you are unfamiliar with tonearm geometry or delicate adjustments, professional assistance is recommended to ensure optimal performance.
The new stainless steel stub measures 2 inches (51mm), which is slightly longer than the original 1.75-inch (44.5mm) stub. This additional length provides more flexibility for balancing various cartridges and helps optimize the tonearm's effective mass.
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$289