Marantz Model 6350 Turntable

The Marantz Model 6350 is a direct-drive turntable introduced in 1978 as part of Marantz’s mid-tier turntable lineup during the late 1970s. Designed for audiophiles seeking reliable performance and precise speed control, the 6350 offered a compelling blend of advanced features and solid engineering at a competitive price point. With its robust build quality and accurate sound reproduction, it remains a respected vintage turntable among collectors and analog enthusiasts.

Specifications

Feature	Specification
Year of Production	1978–1980
Drive Type	Direct drive
Motor	Quartz-locked DC servo motor
Speeds	33⅓ RPM, 45 RPM
Speed Control	Electronic, stroboscopic speed indicator
Pitch Control	±6% continuous adjustment
Tonearm Type	S-shaped, static-balanced
Tonearm Height	Adjustable (VTA)
Anti-Skate	Continuously variable adjustment
Cueing	Front-mounted cueing lever
Platter	Die-cast aluminum
Dust Cover	Hinged, removable
Signal Output	Phono-level via dual RCA jacks
Power Requirements	120V AC, 60Hz (North American models)
Dimensions (W×H×D)	445 × 140 × 360 mm
Weight	9.8 kg (21.6 lbs)
Accessories Included	Slipmat, 45 RPM adapter, dust cover

Sound Signature

The Marantz Model 6350 delivers a neutral and accurate sound signature, characteristic of well-engineered direct-drive turntables of its era. Its quartz-locked motor ensures exceptional speed stability, resulting in very low wow and flutter (measured at less than 0.025%). The S-shaped tonearm, typically paired with a high-quality moving magnet cartridge, provides excellent tracking and channel separation. The result is clean, detailed playback with minimal coloration, making it ideal for critical listening across a wide range of musical genres.

Historical Context

Launched during a golden era of high-fidelity audio, the Model 6350 positioned Marantz as a serious contender in the mid-range turntable market. At a time when brands like Technics (with its iconic SL-1200 series), Pioneer, and Dual were dominating the direct-drive segment, Marantz differentiated itself with refined aesthetics, user-friendly features, and audiophile-grade performance.

The 6350 was not a flagship model, but it brought many high-end features—such as electronic speed control, pitch adjustment, and adjustable VTA—into a more accessible price bracket. Its build quality and attention to detail reflected Marantz’s reputation for crafting reliable, sonically transparent components. While less common today than some of its competitors, the Model 6350 remains a well-regarded example of late-1970s Japanese audio engineering.

Maintenance and Tips

Like all vintage electronics, the Marantz Model 6350 benefits from proper maintenance to ensure optimal performance:

Speed Control Circuit: Over time, electrolytic capacitors in the electronic speed control circuit can degrade. If the turntable exhibits speed instability or fails to lock properly, consider having the capacitors replaced by a qualified technician.

Cueing Mechanism: The front-mounted cueing lever may become stiff or noisy with age. Light lubrication of the internal mechanism (using appropriate non-gumming lubricant) can restore smooth operation.

RCA Cables: Check the internal and external RCA cables for brittleness or poor connections. Replacing worn cables can significantly improve signal integrity.

Rubber Feet: The original rubber isolation feet often deteriorate or harden. Replacing them with modern sorbothane or silicone feet improves vibration damping and stability.

Tonearm Bearings: Ensure the tonearm moves freely without binding. Any lateral or vertical play indicates worn bearings, which may require professional servicing.

Cleaning: Regularly clean the platter, record mat, and dust cover to prevent dust buildup. Use isopropyl alcohol sparingly on rubber or plastic parts.

Cartridge Alignment: Use a protractor to verify cartridge alignment. Proper azimuth and VTA adjustment are essential for optimal tracking and stereo imaging.

Collectibility and Market Value

The Marantz Model 6350 holds moderate collectibility, rated at 6/10. While not as iconic as the Technics SL-1200, it is appreciated for its build quality, feature set, and sonic accuracy. Units in excellent working condition with original accessories typically sell for $150–$300 in the current vintage audio market. Fully serviced models with upgraded cartridges or modifications may command higher prices among analog enthusiasts.

Its relative rarity compared to mass-market competitors adds to its appeal for collectors focusing on underappreciated high-fidelity gear from the 1970s. With proper care, the Model 6350 continues to deliver a satisfying vinyl listening experience nearly five decades after its release.