McIntosh C1000 User manual

c1000 Configurable Tube/Solid-State Controller
and Preamplifier
legendary
The McIntosh C1000 stereo preamplifier is a fully balanced, dual-mono design.
A separate power supply chassis houses all microprocessor and control circuits providing
a high degree of isolation for the audio stages. Available with solid-state and tube preampli-
fier electronics which may be used individually or together, the C1000 preamplifier marries
outstanding audio performance with flexible user-programmability in a one-of-a-kind
three-chassis solution.
Moving Coil and Moving Magnet phono preamplifiers are supported in both the solid-state
and tube designs. Both feature high open-loop gain enabling the use of negative feedback
around the compensation amplifiers for very low noise and distortion and markedly
improved RIAA performance.
The C1000 volume control is a balanced design with a logic-controlled audio taper.
This custom attenuator is accomplished via a 4-stage, digitally controlled analog circuit
that operates with 16 bit precision. Exceptional tracking accuracy guarantees that common
noise and distortion rejection are maximized. The second stage of this control adjusts the
gain of the output amplifier towards unity as the attenuation of the first stage is increased.
The result is very low distortion and wide dynamic range.
The C1000 configurable tube/solid state controller and preamplifier is available
exclusively through McIntosh Authorized Premier Dealers.
Low Noise MM and MC Phono Inputs
Fully Balanced Circuitry
Dual Mono, Mirror Image Design
3 Outputs per Channel for Tri-Amping
Listen and Record Processor Loops
Peak Responding Output Meters
Front-Panel 1/4” Headphone Jack
Remote Controllable
Fiber-Optic Front Panel Illumination
Florescent Display of Operating
Modes
Pass through Home Theater Mode
“all of McIntosh’s
engineering expertise
in a choice of solid-
state, tube or both”

c1000 Configurable Tube/Solid-State Controller
and Preamplifier
FREQUENCY RESPONSE
C1000P: +0, -0.5dB from 10Hz to 40kHz
C1000T: +0, -0.5dB from 10Hz to 20kHz
TOTAL HARMONIC DISTORTION
C1000P: 0.002% max from 20Hz to 20kHz
C1000T: .08% from 20Hz to 20kHz
RATED OUTPUT
C1000P and C1000T: Balanced: 5VRMS
at MAIN, SPKR1 and SPKR2
Unbalanced: 2.5VRMS at MAIN, SPKR1
and SPKR2
MAXIMUM VOLTAGE OUTPUT
C1000P: 12V RMS Unbalanced, 25V RMS Balanced
C1000T: 8V RMS Unbalanced, 16V RMS Balanced
INPUT IMPEDANCE
C1000P and C1000T: High Level, 22k Ohms
Phono MM, 47k Ohms; 50 to 750pF, in 50pF steps
Phono MC, 25, 50, 100, 200, 400 or
1,000 Ohms; 100pF
OUTPUT IMPEDANCE
C1000P and C1000T: 220 Ohms
SENSITIVITY
C1000P: High Level, 450mV for 2.5V rated output
Phono MM, 4.5mV for 2.5V rated output
Phono MC, 0.45uV for 2.5V rated output
C1000T: High Level, 450mV for 2.5V rated output
Phono MM, 4.5mV for 2.5V rated output
Phono MC, 0.45mV for 2.5V rated output
SIGNAL-TO-NOISE RATIO
C1000P: High Level 100dB; Phono 88dB
C1000T: High Level 93dB; Phono 80dB
CHANNEL SEPARATION
C1000P and C100T: Greater than 130dB
MAXIMUM INPUT SIGNAL
C1000P and C1000T: High Level, 5V Unbalanced,
10V Balanced
Phono MM, 50mV; Phono MC, 5mV
VOLTAGE GAIN
C1000P and C1000T:
Phono, MC to Record Out: 60dB
Phono, MM to Record Out: 40dB
High Level to Record Out: 0dB
High Level to Main Out: 15dB
POWER REQUIREMENTS
100 Volts, 50/60Hz, 120 Watts
110 Volts, 50/60Hz, 120 Watts
120 Volts, 50/60Hz, 120 Watts
220 Volts, 50/60Hz, 120 Watts
230 Volts, 50/60Hz, 120 Watts
240 Volts, 50/60Hz, 120 Watts
TUBE COMPLIMENT C1000T
High Level: 4-12AX7A Phono: 4-12AX7A
OVERALL DIMENSIONS (H x W x D including
knobs, connectors and feet)
C1000C, C1000P and C1000T: 6” (15.24cm) x
17-1/2” (44.45cm) x 24”(61cm)
WEIGHT
C1000C: 39 lbs. (17.7kg) net;
61.4 lbs. (27.9kg) in shipping carton
C1000P: 33 lbs. (15kg) net;
53.6 lbs. (24.3kg) in shipping carton
C1000T: 34 lbs. (15.4kg) net;
54.6 lbs. (24.8kg) in shipping carton.
TRI-AMPLIFICATION
All three balanced outputs carry the
same signal and bypass switching when
the TRI-MODE is programmed. This
allows tri-amplification of a speaker set,
while the unbalanced outputs will still
switch to control a remote amplifier.
VRV (VARIABLE RATE VOLUME)
DIGITALLY CONTROLLED
ATTENUATOR
The output attenuator controls volume
over 214 steps of .5dB each with accuracy
within .1dB. The volume versus rotation
rate varies as preamplifier gain varies and
attenuation changes occur at the zero
crossings of the audio signal to prevent
audible artifacts during adjustment.
ELECTROMAGNETIC
SWITCHING
Signal routing is accomplished through
digitally controlled electromagnetic
switching devices. Precision switch
contacts, isolated from environmental
contamination inside inert gas-filled
tubes, provide the most reliable, quietest
and lowest distortion switching possible.
PHONO SECTION FLEXIBILITY
Moving Magnet has adjustable
capacitance from the remote to allow
flexibility in matching your favorite
turntable. Moving Coil offers adjustable
resistance also from the remote
control for the same flexibility.
FOR THE CONSUMER’S
PROTECTION
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 prod-
ucts that have had their serial number
altered or defaced.
To experience the legendary performance of McIntosh, please call on us at 1-800-538-6576
legendary
www.mcintoshlabs.com
35008300 C1000