A total of 12 analog inputs are located in the C12000 Preamplifier module: six balanced, four unbalanced, and two unbalanced phono inputs. The phono inputs are no longer set up as dedicated for Moving Coil or Moving Magnet cartridges; instead, both are configurable as either Moving Coil or Moving Magnet with adjustable Capacitance and Resistance Loading, along with adjustable Gain in 6dB steps from 40dB to 64dB. This provides maximum flexibility for you to configure the C12000 to best fit your turntable(s), cartridge(s), and vinyl record collection.
The C12000 Preamplifier module offers both vacuum tube and solid-state output, allowing you to decide which to use based on the music being played, the audio components in the rest of your home audio system, and your sound preferences. All outputs are driven by discrete amplifiers. For vacuum tube output, six tubes or valves power the high-level preamplifier section with two 12AT7 tubes and one 12AX7A tube assigned to each the left and right channel. Solid-state output is via a discrete balanced op-amp.
Regardless if you choose the vacuum tube or solid-state output, the phono stage utilizes four 12AX7A vacuum tubes, with two tubes used per channel in a fully balanced configuration that incorporates RIAA equalization.
For connecting the C12000 to your amplifier(s) and the rest of your home music system, there are four total outputs: one balanced vacuum tube; one balanced solid-state; one fixed unbalanced; and one programmable unbalanced (can be either vacuum tube or solid-state). The amount of user adjustments available on the two phono inputs and all the outputs represent a new level of customization in McIntosh preamplifier design, allowing you maximum flexibility in how you want to configure your audio system.
The amplifier circuit has a high common mode rejection, so any noise introduced by interconnect cables is significantly reduced. For personal listening, our high output High Drive headphone jack is included, while the user selectable Headphone Crossfeed Director (HXD®) brings an added depth and spatiality to your music. The C12000 can be seamlessly integrated into your existing multi-channel home theater system via the Home Theater Pass Through feature.
- 6 x Balanced
- 4 x Unbalanced
- 1 x Phono Input MC
- 1 x Phono Input MM
- 1 x Digital USB
- 2 x Balanced Variable
- 1 x Unbalanced Fixed
- 1 x Unbalanced Variable
- 1 x 1/4" Headphone
- Total Harmonic Distortion
- High Level: 0.005%
- Phono: 0.05%
- Frequency Response
- +0, -0.5dB from 20Hz to 20kHz
- +0, -3dB from 10Hz to 100kHz
- Sensitivity High Level (Balanced / Unbalanced): 900mV / 450mV
- Sensitivity Phono (Moving Coil): 0.25 – 2.5mV
- Sensitivity Phono (Moving Magnet): 5 – 10mV
- Signal To Noise Ratio (High Level): 107dB
- Signal To Noise Ratio (Moving Coil): 79dB
- Signal To Noise Ratio (Moving Magnet): 83dB
- Input Impedance (Balanced / Unbalanced): 50K ohms, 25K ohms
- Dimensions (W x H x D): 44.45 x 15.24 x 45.7 cm
- C1100C: 12.3 kg
- C1100T: 11.3 kg
For a comprehensive list of features check out the user manual - McIntosh C12000 User Manual