Further information:

C2300 Vacuum Tube Preamplifier is the long-awaited replacement to the C-2200 valve pre-amp. It combines a suite of potent engineering enhancements with smart, user-programmable features to deliver a truly extraordinary audio preamplifier. Each input may have the bass, treble, and mono/stereo mode adjusted and stored in memory. When individual inputs are selected, these settings will engage as preset by the listener. All adjustments may be made either from the front panel or remote control. Two 12AX7a Vacuum Tubes are used for each of three sections: the Moving Magnet phono section, the Moving Coil section, and the high-level preamp section. Its phono sections are fully adjustable on the fly, so the listener may change impedance or loading settings as the record plays. A high performance headphone amplifier with a 1/4" headphone jack is included.
Features
Six Vacuum Tube Design
Variable Rate Volume with Multi-Stage Precision Digitally
Controlled Attenuator
Vacuum Tube Moving Coil and Moving Magnet Phono Preamplifiers
Custom Top Cover with Lighted Tube View
Custom R-Core Power Transformer
IR Remote Control
Low Impedance Headphone Amplifier with 1/4” Jack
Pass-Thru Integration

Specifications
FREQUENCY RESPONSE +0, -0.50dB from 20Hz to 20kHz +0, -1dB from 10Hz to 100kHz
RATED OUTPUT Balanced: 5VRMS at MAIN, 1 and 2
Unbalanced: 2.5VRMS at MAIN, 1 and 2
OUTPUT IMPEDANCE 250 Ohms
MAXIMUM VOLTAGE OUTPUT Balanced: 16VRMS at MAIN, 1 and 2
Unbalanced: 8VRMS at MAIN, 1 and 2
TOTAL HARMONIC DISTORTION 0.08% maximum from 20Hz to 20kHz
SENSITIVITY
Phono, MC: 0.45mV for 2.5V
Phono, MM: 4.5mV for 2.5V
High Level: 450mV for 2.5V
SIGNAL-TO-NOISE RATIO (A-Rated) Phono: 80dB High Level: 93dB
MAXIMUM INPUT SIGNAL Phono, MC: 5mVPhono, MM: 50mV High Level: 5V Balanced
INPUT IMPEDANCE Phono: MC: 25, 50, 100, 200, 500, or 1000 Ohms
MM: 47k Ohms, 50 to 750pF, 50pF steps
High Level: Balanced: 40k Ohms Unbalanced: 20k Ohms
VOLTAGE GAIN Phono, Moving Coil to Record Output: 60dB
Phono, Moving Magnet to Record Output: 40dB
High Level to Record Output: 0dB
High Level to Main Output: 15dB
OVERALL DIMENSIONS (H x W x D)
7-1/8” (18.1 cm) x 17-1/2” (44.4 cm) x 14-1/2” (36.8 cm) including clearance for connectors.
Knob clearance in front of the mounting panel is ¾” (1.9 cm)
WEIGHT
29.5 lbs. (13.41 kg) net 44.9 lbs. (20.41 kg) in shipping carton
With original double boxes.( WITH REMOTE CONTROL- NEW HR093} )

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Edited August 21, 20214 yr by smart
update remote info

UPDATE: INCLUDES MCINTOSH  HR093 REMOTE CONTROL. (New  model)