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Esoteric Grandioso C1X solo Preamplifier

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Experience music as it was meant to be heard. The Esoteric Grandioso C1X solo Preamplifier serves as the command center of your audio system, unlocking the full potential of every component while creating an immersive listening experience that transcends the equipment itself. This flagship preamp combines Esoteric's decades of engineering expertise with cutting-edge innovation. Its dual-balanced circuit architecture and complete dual mono configuration eliminate crosstalk and interference, while five independent power transformers ensure each circuit block operates at peak performance. The powerful buffer amplifier drives your power amp with authority, and ES-Link Analog current transmission pushes fidelity to new limits. The "solo" edition integrates all the sonic excellence of the original C1X into a refined, space-conscious chassis. Instruments breathe with natural dynamics against a silent, inky black background—a hallmark of Esoteric's uncompromising design philosophy. Connectivity includes three balanced XLR analog inputs, two RCA inputs, and dual XLR outputs plus ES-Link Analog outputs for maximum flexibility. Remote control and trigger inputs provide seamless system integration. At just 27.5kg and measuring 445 x 132 x 449mm, it delivers reference-grade performance without dominating your listening room. A preamplifier worthy of the Grandioso name.

 

Spec description

Analog Audio Inputs: 
XLR/ES-Link
Analog- x 3 pairs
Input Impedance- 50k
Input Sensitivity- 500mV (at rated output)
Maximum Input Level- 11.7V
RCA- x 2 pairs
Input Impedance- 500k
Input Sensitivity- 500mV (at rated output)
Analog Audio Outputs: 
XLR- x 2 pairs 
Output Impedance- 30
Rated Output- 2V
Maximum Output Level- 17V (1kHz, 0.003%)
ES-Link Analog- x 2 pairs
Output Impedance- 30
External Control: 
RS-232C Connector- S-sub 9pin x 1
Trigger Input  Connector- 3.5mm Monaural mini jack x 2
Output Level- 12V, Total 100mA maximum
General: 
Power- AC 120V, 60Hz AC 220-240, 50Hz
Power Consumption- 22W
Standby Power- 0.3W when RS-232C Remote control is disabled, 1.0W when enabled
Overall Dimensions (WxHxD)- 445 x 132 x 449mm (including protrusions)
Weight- 27.5kg
Included Accessories- Power cord x 1
Remote control (RC-1334) x 1
AA batteries x 2
Felt pads x 4
Owner's manual x 1
Warranty card x1  

Audio performance
Frequency Response- 1Hz to 150kHz (-3dB, XLR)
S/N Ratio- 120dB (2V input, IHF-A, XLR)
Total Harmonic Distortion- 0.00035%
Gain- +12dB

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