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Esoteric Grandioso C1X Preamplifer (c-series)
For the control center of Esoteric’s flagship Grandioso X edition, our engineers looked ahead to what lies beyond what a preamplifier should be.
To surpass the Grandioso C1, winner of countless awards following its 2014 introduction, we set out to thoroughly reimagine the volume control system – often considered to be the fundamental core of a preamplifier – thereby dramatically improving its precision and clarity of sound to become the standard for a new era.
Esoteric’s accumulated engineering knowledge and expertise focused on creating a new preamplifier that meets the desires of the consummate audiophile.
– The new Grandioso C1X
Spec description
Analog audio inputs:
XLR/ESL-A- 3 pairs
Input impedance- 50k
Input sensitivity- 500mV (at rated output)
Maximum input level- 12V
RCA- 2 pairs
Input impedance- 68k
Input sensitivity- 500mV (at rate output)
Maximum input level- 12V
Analog audio outputs:
XLR- 2 pairs
Output impedance- 30
Rate output- 2V
Maximum output level- 17V
ESL-A- 2 pairs *Option: Charging the ESL-A terminals with RCA terminals
Output impedance- 30
External Control:
RS-232C
Terminal- D-sub 9-pin x1
TRIGGER IN
Terminal- 3.5mm Monaural Mini jack x1
Input Level- 12V, 2mA
TRIGGER OUT
Terminal- 3.5mm Monaural Mini jack x2
Output Level- 12V, 100mA (total)
General:
Power supply- AC 120V, 60Hz
AC 220-240V, 50/60Hz
Power consumption- 15W (L), 15W (R)
External dimensions (WxHxD)
Main unit- 445 x 132 x 449mm
17 5/8" x 5 1/4" x 17 5/8" (including protrusions)
Power unit- 445 x 132 x 452mm
17 5/8" x 5 1/4" x 17 7/8" (including protrusions)
Weight
Main unit- 20.2kg/44.6 lb
Power unit- 29.0kg/64 lb
Included accessories- Power cords x2
DC power connection cords x2
Remote control (RC-1334) x1
AA batteries x2
Felt pads x8
Owner's manual x1
Warranty card x1
Audio performance
Frequency response- 1Hz to 150kHz (-3dB, XLR IN, XLR OUT)
S/N ratio- 120dB (2V input, A weight, XLR IN, XLR OUT)
Total harmonic distortion- 0.00035% (XLR IN, XLR OUT)
Gain- +12dB (XLR IN, XLR OUT)