McIntosh | C2300

Pre-Amplifiers/Processors

C2300

Vacuum Tube Preamplifier

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.

C2300 Vacuum Tube Preamplifier Features

EIGHT PROGRAMMABLE SOURCE SELECTIONS

All eight source elections accommodate unbalanced inputs while four of the either also accommodate balanced inputs. Any of 12 standard names can be assigned to a source selection and the panel display can be customized to indicate only available sources.

SILENT ELECTROMAGNETIC SWITCHING

Signal routing is accomplished through digitally controlled electromagnet switching devices. Precision switch contacts, isolated from environmental contamination inside inert gas-filled glass tubes, provide the most reliable, quietest and lowest distortion switching possible.

VRV (VARIABLE RATE VOLUME) DIGIALLY CONTROLLED ATTENUATOR

The output attenuator controls volume over 214 steps of .5dB each with accuracy

within .1dB. The volume vs. rotation rate varies as preamplifier gain varies and

attenuation changes occur at eh zero crossings of the audio signal to prevent audible artifacts during adjustment.

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
Headphone Jack
Pass-Thru Integration

C2300 Vacuum Tube Preamplifier 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: 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

44.9 lbs. (20.41 kg) in shipping carton

C2300 Vacuum Tube Preamplifier Owner's Manual, Connection Diagrams and Literature

Manuals & Documents

C2300 Tube Preamplifier Owner's Manual (7134.68KB)

Downloads & Updates

C2300 Tube Preamplifer Rear Panel Connections (1990.61KB)

C2300 Tube Preamplifier Literature (144.63KB)

Product Details: Reviews and Awards

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In order to ensure the highest level of customer satisfaction, "new" McIntosh products may only be purchased over-the-counter or delivered and installed by an Authorized McIntosh Dealer.

McIntosh products that are purchased over the Internet, by phone or mail order are presumed to be "used" and do not qualify for any McIntosh Warranty. McIntosh does not warrant, in any way, products that are purchased from anyone who is not an Authorized Dealer or products that have had their serial number altered or defaced.