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McIntosh C70 70th Anniversary 2-Channel Vacuum Tube Preamplifier-C70

Model #: C70
250307
McIntosh
At a Glance

The C70 70th Anniversary Vacuum Tube Preamplifier harkens back to yesteryear with an all analog design and a retro look. The glass front panel is inscribed with special McIntosh 70th Anniversary lettering.

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Get to know this product.

  • All analog design and a retro look
  • (5) 12AX7A and (1) 12AT7 vacuum tubes
  • Moving Coil and Moving Magnet phono inputs

The C70 70th Anniversary Vacuum Tube Preamplifier harkens back to yesteryear with an all analog design and a retro look. The glass front panel is inscribed with special McIntosh 70th Anniversary lettering.

The C70 features one 12AT7 and five 12AX7A vacuum tubes that are visible through a glass panel on the top cover. All control operations are done via knobs and rocker switches. Modern LED indicators will denote input selection and volume level. The C70 has seven inputs consisting of two balanced inputs, three unbalanced inputs, and one each of Moving Coil and Moving Magnet phono inputs. For outputs, there are two pairs each of balanced and unbalanced connections.

On the front panel, bass and treble tone controls are included and can be adjusted in 2dB increments via rotary knobs. Rotary knobs are also used to adjust the impedance and capacitance for the phono inputs. In addition to controlling the listening level, the volume knob can also adjust the relative volume balance between the left and right audio channels. A ¼” headphone jack powered by our High Drive headphone amplifier is included and features our Headphone Crossfeed Director (HXD®) technology. HXD brings added dimension to your music in a natural sounding way but can be turned off depending on your preferences. Five rocker switches are used to control the following functions: tone control on/ off; change between mono and stereo mode; HXD on/off; and to turn the independent output 1 and output 2 on/off.

The C70 sits atop a beautiful polished stainless steel chassis and features the timeless McIntosh black glass front panel, illuminated logo, control knobs, and aluminum end caps. Our Power Control technology is included with four ports that can automatically turn other connected McIntosh components such as amplifiers, CD players or turntables, on and off. Data ports are also present and can control basic functions of connected McIntosh source components via the C70’s remote control. Contact your local dealer to learn more.

Specifications

Electronic Specifications

Total Harmonic Distortion0.08%
Frequency Response+0, -0.5dB from 20Hz to 20,000Hz, +0, -3dB from 15Hz to 100,000Hz
Maximum Volts Out (Balanced / Unbalanced)16/8 V RMS
Input Impedance (Balanced / Unbalanced)44K ohm, 22K ohm
Phono Voltage GainMoving Magnet: 40dB, Moving Coil: 60dB
High Level Voltage GainTo Output 1 and 2: 15dB
Signal To Noise Ratio100dB

Connectivity

Balanced Input2 Stereo
Unbalanced Input3 Stereo + 2 Phono
Phono Input Moving Coil1 (adjustable)
Phono Input Moving Magnet1 (adjustable)
Balanced Variable Output2 Stereo
Unbalanced Variable Output2 Stereo
Headphone Output1/4" High Drive with Headphone Crossfeed Director (HXD®)
Unbalanced Analog Connector TypePremium gold-plated solid brass

Control

Tone ControlsBass and Treble
Tone Bypass and Input AssignTone Bypass: Yes, Input Assign: No
Power Control Output2 Main, 2 Switched
Rear Panel Data Port5
Rear Panel IR Sensor InputYes

General Specifications

Multi-Chassis or SingleSingle, two layer
Vacuum Tube or Solid StateVacuum Tube: (5) 12AX7A and (1) 12AT7
Power Consumption (On)50 Watts

Weights & Dimensions

Dimensions (W x H x D)17.5" (44.45cm) x 6" (15.24cm) x 18" (45.72cm)
Weight25 lbs (11.3kg)
Shipping Weight41.4 lbs (18.8kg)

Misc. Specs

Product Weight25
Depth (in.)18
Width (in.)17.5
Height (in.)6
Manufacturer Warranty3 Year
WarningProposition 65 Warning for California Residents