Overview: The Pro-Ject RM-1.5 is a manual belt-driven turntable
with a fitted MC-cartridge (Sumiko Blue Point No. 2).
Its resonance-optimized platter is made from MDF
and features and integrated vinyl mat. The platter rests upon an MDF plinth with
a suspended motor assembly optimized for low resonance and speed stability. The
turntable incorporates a stainless steel axle that runs on a Teflon bearing
plate in a bronze housing for lower wow-and-flutter and superior speed accuracy.
A fixed headshell and 9" carbon fiber tone-arm with precision Swiss bearings and
rigid carbon fiber arm tube provide superior tracking and cartridge control.
Three-point aluminum cone feet further reduce noise and vibration.
Belt Driven: A quiet running AC motor with a two-step pulley
drives the hub and platter via a flat-ground belt. The RM-1.5 supports 33-1/3 and 45 rpm speeds.
Note: The optional Pro-Ject Speed Box II (252SBIIB, sold
separately) can be connected to the turntable to change speeds
electronically between 33-1/3 and 45 rpm.
Resonance-Optimized Platter: The 12" resonance-optimized platter
is a sandwich construction utilizing the hub, an medium density fiber (MDF)
platter, and a screw-down record clamp. The platter's low-tolerance
chrome-plated stainless-steel axle runs on a Teflon bearing plate in a sintered
bronze bearing housing. A central metal block optimizes center of gravity and
dampens main bearing.
MDF Plinth: The medium density fiber (MDF) plinth stands on three
height-adjustable rubber-damped aluminum cone feet.
Note: The turntable should be positioned on a low-resonance
surface such as wood or multiple layer ply-board to avoid structural
vibrations disturbing replay.
Decoupled Motor: The motor is decoupled from the plinth to reduce
RCA Connection with Grounding Screw: Connection to the phono input of
your amplifier can be made with connecting cables of your choice through the
turntable's gold-plate stereo RCA phono jacks and grounding screw.
Note: The Pro-Ject turntable comes supplied with a 47" stereo RCA
cable with ground wire.
9" Carbon Tone-arm: The RM-1.5 features a 9" carbon
tone-arm. The headshell and arm-tube are fashioned from a single piece of
carbon-fiber. The conical-shaped arm-tube avoids standing wave reflections. The
inverted tone-arm bearing comprises four hardened stainless tips. Rings provide
very solid arm bearing housings, while the outside ring is open to avoid
resonances. The solid arm-base permits accurate height adjustment of arm-tube
and VTA (vertical tracing angle). The Single-screw fixing of the arm-tube allows
rotation for easy adjustment of needle azimuth despite the fixed headshell.
MC-Cartridge: The turntable is supplied with a Sumiko
Blue Point No. 2 fitted MC-cartridge. The Sumiko Blue Point cartridge offers exceptional performance and musicality. It features a
moving coil design, high-output (2.5-mV), alloy cantilever, Blue Point-cut
elliptical diamond stylus, and standard 1/2" mounting.
Note: If your amplifier does not have a suitable Phono MC input,
you will require a separate phono pre-amplifier (252PBIIB, sold separately)
to connect the turntable to your amplifier.
Damped Arm-lift: Silicone-damped arm-lift can be adjusted to suit
working height of the arm.
Counterweight: The turntable's design of the counterweight
effectively counteracts unwanted resonances. When Counterweight shaft is lowered
to record level it reduce cantilever forces and dynamic wow when playing warped
records. The counterweight supplied is suitable for cartridges weighing between
Internal Wiring: The turntable's internal wiring consists of
flexible high-purity copper from the headshell right through to the gold-plated
External Power Supply: The RM-1.5 utilizes an external power
supply to avoid potential electro-mechanical interference.
Filter Cartridge: Sumiko Blue Point No. 2 (output voltage:
Amplifier Connection: MC-input (recommended load resistance: 47 kohms)
Nominal Speeds: 33-1/3, 45 rpm
Tone-arm Length: 9" (230mm)
Tone-arm Mass: 0.299 oz (8.5g)
Overhang: 0.708" (18mm)
Counterweight: 0.21-0.35oz (6-10g).
Speed Variance: +/-0.5%
Wow & Flutter: +/-0.08%
Signal-to-Noise: -70 dB
Down-force Range: 10-30 mN
Power Consumption: 2W
Outboard Power Supply: 15V/550 mA AC (AC 120V / 60Hz, 13.0W)
Dimensions: 15.8125" (wide) x 5.5625" (tall) x 11.875"(deep)
Weight: 14.33 lbs (6.5kg)