Project RPM9.1 Hi-Fi Turntable

Chassis and motor housing piano-lacquered dark grey. A quiet running AC motor with a two-step pulley drives the platter's outside edge via a belt. The medium density fibre plinth rests on three individually height-adjustable magnetic field feet. A supplied spirit level allows easy adjustment. Granulate filled plinth guarantees constant damping. The motor is mounted in a separate metal housing to eliminate vibration transmission. The resonance-optimised platter is a sandwich construction utilising an acrylic platter weighing 3,5Kg and a brass record puck. The inverted bearing uses a stainless-steel axle carrying a ceramic ball on which the ceramic bearing plate runs.

Central metal block optimises centre of gravity and damps main bearing. Connection to the phono input of the amplifier can be made with connecting cables of your taste through the gold plated phono sockets and earth screw. A standard cable is provided. External power supply avoids potential electro-mechanical interference.

The headshell and armtube are fashioned from a single piece of carbon-fibre. Conical armtube avoids standing wave reflections. Inverted tonearm bearing comprises four hardened stainless tips in ABEC7 spec ballraces. Rings provide very solid arm bearing housings. The massive outside ring is open to avoid resonances. Sorbothane®-damped counterweight effectively counteracts unwanted resonances. Counterweight shaft lowered to record level reduces cantilever forces and dynamic wow when playing warped records.

Solid armbase permits accurate height adjustment of armtube and VTA (vertical tracing angle). Single-screw fixing of armtube allows rotation for easy adjustment of needle azimuth despite fixed headshell. Silicone-damped armlift can be adjusted to suit working height of the arm. The internal wiring consists of flexible high-purity copper from the headshell right through to the gold-plated phono socket.

Project RPM9.1 Hi-Fi Turntable Specification:

• Effective tonearm length 9" (230mm)
• Effective tonearm mass 8g
• Overhang 18mm
• Supplied counterweight cartridge weight 5 - 7.5g, 7 - 10g, 9 - 11g, 10 - 14g
• Downforce range 10 - 35mN
• Speed variance ±0,5 %
• Wow and flutter ±0,06 %
• Signal to noise -73dB
• Platter weight/diameter 3,5kg/300mm
• Dimensions 440 x 180 x 325mm
• Weight 10,5kg + motor unit 2kg

Visitors to our Hull showroom can see and hear the Project RPM9.1 Hi-Fi Turntable.