Pre-Amplifier

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C2300 Vacumm Tube Pre-Amplifier

The C2300 Vacuum Tube Preamplifier 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 frontpanel 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. 

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: 80dBHigh 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