Pro-Ject RPM 9.1 Acryl



A quiet running AC motor with a two-step pulley drives the platter's outside edge via a belt. The transparent acrylic plinth stands on three height-adjustable Sorbothane®-damped aluminium cones. A supplied spirit level allows easy adjustment. 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.

Tonearm Pro-Ject 9cc
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 outside ring is open to avoid resonances. Design of counterweight effectively counteracts unwanted resonances. The counterweight supplied is suitable for cartridges weighing between 6 - 10g. Alternative counterweights for cartridges weighing between 11 - 15g, 8 - 11g or 5 - 8g are available as an accessory part. 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 sockets.

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"Nominal speeds 33 / 45 r.p.m.
Dust cover Pro-Ject Cover it optional
Record weight
Motor in separate housing
RCA phono sockets
Sorbothane-damped aluminium cones
Central metal block
Tonearm Pro-Ject 9cc
Carbon-fibre headshell and armtube
Effective tonearm length 9"" (230mm)
Effective tonearm mass 8,5 g
Overhang 18 mm
Supplied counterweight cartridge weight 6 - 10g
Optional counterweights cartridge weights 10 - 15g, 9 - 11g, 4 - 6g
cartridge weight 11 - 15 g
Downforce range 10 - 30 mN
Speed variance ±0,5 %
Wow and flutter ±0,06 %
Signal to noise -73dB
Platter weight/diameter 3,5kg/300 mm
Power supply type Mains-fed outboard power supply
220 - 240V, 50 cycles or 100 - 110V, 60 cycles
Output voltage 16V/500mA AC
Power consumption 2W
Dimensions 440 x 180 x 325mm
Weight 10,5kg + motor unit 2kg


RPM 9.1


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