Orbit Theory Turntable
The Orbit Theory Turntable is U-Turn Audio’s most advanced design to date, combining audiophile-grade performance with precision-engineered details for uncompromising playback. Featuring the OA3 Pro Tonearm—a one-piece magnesium armtube with adjustable anti-skate and dial counterweight—this turntable offers low resonance, precise tracking, and near-frictionless movement. Enjoy the enhanced detail of your vinyl with cartridge including the Ortofon 2M Blue and a grooved acrylic platter that spins on a precision-machined aluminum spindle. With electronic speed control, ultra-quiet motor, vibration-isolating aluminum feet with Sorbothane, and a solid hardwood plinth, the Orbit Theory is built to deliver a superior, distortion-free listening experience—assembled by hand in Woburn, MA.
Specifications
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Tonearm: OA3 Pro Tonearm with one-piece magnesium armtube, dial counterweight, and adjustable anti-skate
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Cartridge Options: Ortofon 2M Blue (nude elliptical)
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Speed Control: Electronic (33/45 RPM) with anodized aluminum selector knob
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Platter: Grooved frosted acrylic platter, precision-machined for flatness and runout
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Main Bearing: Inverted bearing with self-lubricating polymer bushings
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Spindle & Pulley: Machined aircraft-grade aluminum
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Motor: Ultra-quiet AC motor with crystal-controlled sine wave generator
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Feet: Adjustable Iso-Level aluminum feet with Sorbothane for vibration isolation
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Plinth: Real hardwood (Walnut, Ebonized Oak, or White Oak)
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Cue Lever: Silicone-damped for easy tonearm operation
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Optional Preamp: Built-in Pluto 2 phono preamp with WIMA capacitors and precision resistors
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Playback Speeds: 33/45 RPM electronically changed
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Dimensions: 16.75 x 12.5 x 4.25"
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Wow & Flutter: < 0.1%
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Speed Accuracy: +/- 0.5%
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S/N Ratio: -79 dBA
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Rumble: < -72 dBA
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Tonearm Effective Length: 220 mm
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Tonearm Effective Mass: 8 g
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Overhang: 19 mm
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Input Voltage: 115V/60Hz
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Output: RCA
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Warranty: 3-year limited warranty
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Assembly: Hand-assembled in Woburn, MA, USA
Expanded Key Features List
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OA3 Pro Tonearm: One-piece magnesium armtube with adjustable counterweight and anti-skate for accurate, low-resonance tracking.
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Electronic Speed Control: Switch between 33/45 RPM with a precise anodized knob, powered by a sine wave generator and crystal oscillator.
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Ortofon Cartridge Options: 2M Blue to match your listening style, from detailed balance to high-end accuracy.
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Precision Acrylic Platter: Frosted acrylic platter with grooved edges rotates on a machined aluminum spindle for perfect speed stability.
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Vibration-Isolating Feet: Adjustable aluminum feet layered with Sorbothane to block external vibrations and preserve sonic detail.
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Real Hardwood Plinth: Made from sustainably harvested walnut, white oak, or exclusive ebonized oak—not veneer—for authentic style and resonance control.
Q&A Section
Q: What’s different about the OA3 Pro tonearm?
A: The OA3 Pro uses a one-piece magnesium armtube and upgraded gimbal bearing for extremely accurate tracking, low resonance, and smooth movement across your records.
Q: Is speed control manual or electronic?
A: It features electronic speed control—just turn the knob to switch between 33 and 45 RPM, no belt movement required.
Q: What makes the platter special?
A: The platter is grooved frosted acrylic, machined for flatness and speed accuracy, and paired with a precision aluminum spindle and inverted bearing system.
Q: Does it have built-in vibration isolation?
A: Yes, it includes adjustable Iso-Level aluminum feet with Sorbothane to block external vibration and improve clarity.
Q: Is the plinth real wood?
A: Absolutely. The Theory plinth is made from solid American hardwood, not veneer, and comes in walnut, white oak, or exclusive ebonized oak.
Q: Is there a built-in preamp?
A: Yes, you can select a version with the built-in Pluto 2 phono preamp for plug-and-play compatibility with powered speakers or standard inputs.
Q: Where is the Orbit Theory made?
A: Every unit is hand-assembled and tested in U-Turn Audio’s workshop in Woburn, Massachusetts, USA.
