RCM AUDIO Sensor 2 MM/MC Phono Preamplifier


RCM Audio

Ex Display. In immaculate condition. Comes with all original packaging and full warranty.

RCM Sensor 2 is an extensive upgrade of the giant killing RCM Sensor Prelude that audiophiles have embraced with enthusiasm for its excellent sound quality and value for money.


SKU: sensor 2 Categories: ,


The RCM Sensor 2 phono preamplifier provides precise RIAA equalization for cartridges in the range of 0.3 mV to 5 mV, and outputs a line level signal of 2 Volts at 1 kHz.

Easily accessible switches on the back panel allow the user to adjust cartridge load impedance, gain and mode of input stage (balanced or single–ended).

RIAA equalization is achieved via a passive split network with two separate RC filters, low noise resistors and 1% tolerance polypropylene capacitors.

To ensure high precision in the RIAA equalizer each component of the filter is hand picked and measured to guarantee a tolerance of less then 0.3 dB in the frequency range 20Hz – 20 kHz. This is done for every unit built so that the customer receives a unit sounding as good as the reference unit in our laboratory.

All other components in the preamplifier are selected to ensure perfect channel balance.

Because of the extremely high gain capability of up to 76dB combined with a very low noise floor the Sensor 2 can amplify very low output MC cartridges with ease. Music emerges from a black background and images are finely crafted and spread out before you in a sound stage that is both wide and deep. Detail retrieval is exceptional and the ability to communicate Pace, Rhythm and Timing (PRAT) is very satisfying.

Sensor 2 performs at such a high level that it can be used in the most expensive audiophile systems, however its very reasonable price allows music lovers at all levels to enjoy the superb sound it produces.


Input: RCA – Balanced and Unbalanced (selectable via switch)
Output: 1 pair balanced XLR
1 pair unbalanced RCA (single ended)
Input sensivity: 0.3 – 5mV (selectable in 7 steps)
Gain: 52 – 76 dB (2 Vrms output at 1 kHz)
0,3 – 0,4 – 0,6 – 0,9 – 1,4 – 2,5 – 5 mV
Input impedance: 20 – 47000 ohm (selectable in 8 steps)
20 -30 – 50 – 100 – 200 – 400 – 1000 – 47 000 ohm
Input capacitance: 150 pF
THD: 0,01% (1kHz)
RIAA lineary: +/-0,3dB (20Hz – 20kHz)
Nominal output: 2V rms.
Max. output level: 8V rms.
Output impedance: 70 ohm
S/N: 85dB (lowest gain settings)
RIAA linearity: +/- 0,3dB (20Hz – 20kHz)
Dimensions: preamplifier 245 x 227 x 110 mm (without terminals)
power supply 122 x 230 x 70 mm (without terminals)
Weight: preamplifier 3,5 kg.
power supply 1,7kg.
Power consumptoin: max. 17 W
Warranty: Two years.


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