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Overview

Hi-Fi Choice Recommended badge

The C2800 Vacuum Tube Preamplifier is a masterpiece of audio passion and engineering precision. Crafted for discerning audiophiles and music enthusiasts alike, performance has been woven into the very fabric of this audio treasure. The C2800 has proudly earned the McIntosh name.

At the heart of the C2800 lies methodically designed vacuum tube circuitry. Leveraging the latest designs to all but eliminate noise and distortion, the C2800 reduces them to minuscule levels. Its four vacuum tubes, or valves, deliver a listening experience that transcends expectations.

"An exceptional valve (vacuum tube) preamp with excellent performance, all the inputs almost anyone could ever want, and no sign of valve quirkiness to frighten the horses."Earned the prestigious Outstanding Product badge. - Hi-Fi News

McIntosh C2800 Vacuum Tube Preamplifier

INPUTS IN ABUNDANCE

With its 9 analog and 7 digital inputs (16 total inputs), the C2800 will become the nucleus of your home audio system. There are 3 balanced and 4 unbalanced analog inputs, plus 2 phono inputs that can be configured for either Moving Coil or Moving Magnet phono cartridges to connect your turntable(s). Both phono inputs feature adjustable Gain in 6dB steps from 40dB to 64dB as well as RIAA equalization.

"The C2800 offers a rich and detailed sound signature. The design combines the warmth of vacuum tube amplification and solid-state technology for a dynamic listening experience allowing a clear separation of instruments, vocals, and great imaging… These qualities in my opinion make the McIntosh C2800 a standout choice for anyone who is looking to enhance their audio system." - The Absolute Sound (watch full video review below)

Our DA2 Digital Audio Module houses the 7 digital inputs and is powered by an audiophile-grade Quad Balanced, 8-channel, 32-bit Digital-to-Analog Converter (DAC). The DA2 offers a variety of inputs, including an audio-only HDMI Audio Return Channel (ARC)1 input that will give your TV sound new life when played through your home stereo system. Multi-channel audio formats from Dolby® and DTS® will be expertly converted to two-channel audio for an enthralling listening experience.

McIntosh C2800 Vacuum Tube Preamplifier

The DA2 has 6 other digital inputs: 2 coaxial, 2 optical, 1 USB, and 1 MCT. The coax and optical inputs decode digital music up to 24-bit/192kHz for high resolution audio playback, while the USB input supports DSD512 and DXD 384kHz. And to get the best sound quality from the high definition audio on your SACD collection, the MCT input offers a secure, custom DSD connection when paired with our MCT series of SACD/CD Transports. The entire DA2 module is upgradeable and could be replaced by a future module should new digital technologies become available.

"It is extremely easy to live with and use. With two configurable phono inputs and a very comprehensive DAC treatment, not to mention the headphone output, you’ll be well set to concentrate on the right power amplifier to do this C2800 justice so that you can focus on the music." Highly Recommended. - HiFi and Music Source

INNOVATIVE OUTPUTS FOR PERSONALIZED LISTENING

Offering advanced connection flexibility, there are 3 stereo sets of variable balanced and unbalanced outputs to connect the C2800 to your power amplifier(s). All sets of outputs can be active simultaneously, and each can send the audio signal from the source component to 3 separate audio systems.

McIntosh Preamplifier back panel

Bi-amping a single speakersystem can be accomplished using the Main output and Output 1 and their built-in adjustable High Pass and Low Pass filters. In this configuration, the High Pass outputs could be connected to a vacuum tube amplifier, and the Low Pass outputs could be connected to a solid-state amplifier. Then the adjustable crossover would let you optimize the performance of your amplifiers to your speaker’s specifications and to your listening preferences. Output 1 offers trim level control, which allows two different amplifiers to be volume balanced when bi-amping.

Additionally, Output 2 can be configured as either mono or stereo to allow it to send audio signal to a stereo audio system in another room, to a single mono subwoofer, or to 2 separate stereo subwoofers.2

McIntosh Preamplifier back panel

RETURN OF THE PROCESSOR LOOP

The C2800 features the return of the Processor Loop, something not available on the last few generations of McIntosh preamplifiers. The Processor Loop allows you to insert an external signal processor (such as our MQ112 Environmental Equalizeror MEN220 Room Correction System), dynamic range expanders, or other devices without having to place it between the preamplifier and power amplifier(s). This is usually more convenient and can allow for better performance.

The Processor Loop is also the perfect place to connect an analog tape recorder, a high-end cassette deck, or a 3-head reel deck that allows you to record from a source component and hear the recording just seconds later so you can monitor your recordings.

McIntosh Connect app

NETWORK CONNECTED FOR CONTROL AND UPDATES

In addition to using the included remote control or the front panel controls, the C2800 can be connected to your network which will unlock control options offered through our complimentary Connect app. Designed for both Android and Apple devices, the Connect app can be used to control key functions of the C2800 including Volume control as well as Input and Output selection.

Select McIntosh source components3 that have a data cable connected to the C2800 will be partially controllable via the app's Source Control feature. With Source Control, users will be able to control many of the source unit's functions from the app, such as changing radio stations on a tuner, or playing a disc in a CD Player. Source Control will bring added convenience to setups that have a secondary system connected to one of the C2800's outputs, such as an outdoor system where you will no longer be forced to go inside to control its basic functionality.

When connected to your network, the C2800 will also be able to receive periodic firmware updates. These firmware releases can add new features or provide important performance updates. Watch our McIntosh Connect App: Setup and How to Use video to get acquainted with the app.

The C2800 has received Connects with Control4 Certification from Control4®, a leading global provider of smart home automation solutions, with the implementation of their Simple Device Discovery Protocol (SDDP), allowing it to be effortlessly integrated into Control4 automation systems to further enhance the user experience. It has also received Works with Crestron Home certification from Crestron, a global leader in advanced smart home technology. Crestron Home unlocks the full potential of a smart home. It’s the complete package for any size project, delivering a simpler, smarter user experience for homeowners, remarkably fast configuration and deployment for integrators, and the confidence that comes with renowned, best-in-class Crestron control hardware.

ELEVATE YOUR AUDITORY JOURNEY

All this cutting-edge audio technology resides within the iconic McIntosh design – a black glass front panel adorned with blue meters, rotary knobs, and an illuminated logo. The polished stainless steel chassis adds a touch of elegance, making it a perfect companion for amplifiers, CD players, turntables, and more.

McIntosh C2800 Vacuum Tube Preamplifier

With the C2800, experience the warmth and richness that only vacuum tubes can offer, elevating your listening experience to new heights. Contact your local dealerand embark on an audio adventure like never before.

1) The HDMI ARC input will only play audio from a compatible TV. It will not pass video to or from a TV, or play audio from any non-TV source. 2) Only powered subwoofers will work with this preamplifier. 3) Source components compatible with Source Control: MCD201, MCD205, MCD301, MCD350, MCD500, MCD550, MCD600, MCD751, MCD1000, MCD1100, MCD7009, MCD7010, MCD12000, MCT80, MCT450, MCT500, MR85, MR87, MR88, MR89, MR7084, MVP831, MVP841, MVP851, MVP861, MVP871, MVP881, MVP891, and MVP901.

The terms HDMI, HDMI High-Definition Multimedia Interface, and the HDMI Logo are trademarks or registered trademarks of HDMI Licensing Administrator, Inc. Dolby is a registered trademark of Dolby Laboratories. DTS, DTS-HD, the Symbol, & DTS or DTS-HD and the Symbol together are registered trademarks of DTS, Inc. © DTS, Inc. All Rights Reserved.

Specifications

Electronic Specifications

Number of Channels

2

Total Harmonic Distortion

0.08%

Frequency Response

+0, -0.5dB from 20Hz to 20kHz

+0, -3dB from 15Hz to 100kHz

Maximum Volts Out (Balanced / Unbalanced)

16V RMS / 8V RMS

Sensitivity High Level (Balanced / Unbalanced)

900mV / 450mV

Sensitivity Phono (Moving Coil)

0.45mV

Sensitivity Phono (Moving Magnet)

4.5mV

Signal To Noise Ratio (High Level)

100dB

Signal To Noise Ratio (Moving Coil)

75dB

Signal To Noise Ratio (Moving Magnet)

75dB

Voltage Gain (High Level)

15dB

Voltage Gain (Moving Coil)

Selectable 40dB, 46dB, 52dB, 58dB, or 64dB

Voltage Gain (Moving Magnet)

Selectable 40dB, 46dB, 52dB, 58dB, or 64dB

Input Impedance (Balanced / Unbalanced)

44K ohm, 22K ohm

Connectivity

Balanced Input

3

Unbalanced Input

4

Phono Input Moving Coil

Up to 2 (unit has 2 Phono inputs; each is user configurable as either Moving Coil or Moving Magnet)

Phono Input Moving Magnet

Up to 2 (unit has 2 Phono inputs; each is user configurable as either Moving Coil or Moving Magnet)

Upgradeable Digital Audio Module

Yes: DA2

Digital Coaxial Inputs

2

Digital Optical Inputs

2

Digital MCT Inputs

1

Digital USB Input

1

HDMI (ARC) Input

1

Digital AES/EBU Input

0

Balanced Fixed Output

0

Balanced Variable Output

3

Unbalanced Fixed Output

0

Unbalanced Variable Output

3

Headphone Output

1/4" High Drive with Headphone Crossfeed Director (HXD®)

Input Level Match

Yes, +/- 6dB

Home Theater PassThru

Yes

Unbalanced Analog Connector Type

Premium gold-plated solid brass

Service Port

1

Network Connections

1

Control

Tone Controls

Bass and Treble

Tone Bypass and Input Assign

Yes

RS232 Control Inputs

Yes

Power Control Outputs

1 Main, 4 Trigger

Rear Panel Data Ports

6

Rear Panel IR Sensor Inputs

Yes

General Specifications

Multi-Chassis or Single

Single, two layer

Output Meters

Yes

Vacuum Tube or Solid State

Vacuum Tube

(3) 12AX7A and (1) 12AT7

Power Consumption (On)

75 Watts

Weights & Dimensions

Unit Dimensions (W x H x D)

17.5" (44.45cm) x 7.625" (19.4cm) x 16.5" (41.9cm)

Unit Weight

28 lbs (12.5kg)

Shipping Weight

43.5 lbs (19.7kg)

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FAQs

Please read our FAQs page to find out more.

Do you price match?

Yes. We match any authorised dealer, including big-box retailers. If you find the same product at a lower price, contact us and we'll match it.

Do you offer free shipping?

Yes — free shipping on every order, with 2-day delivery available on most products. Easy returns and exchanges are included.

Where is your showroom?

We're at 6362 Alder Drive, Houston, Texas. The showroom lets you hear and compare reference-level systems in person before making any decisions. If you're considering a larger purchase or installation, it's well worth the visit.

Can I buy online without visiting the showroom?

Yes. The full product range is available through the online store with free nationwide shipping. For more complex system builds, speaking with one of our advisers first tends to lead to a better result.

Do you offer financing?

Yes. Special financing is available through the BrandSource Credit Card for qualifying purchases, allowing you to spread payments over time with no annual fee. Promotional rebate savings are also available periodically. See the financing page for full details.

Do you install systems as well as sell equipment?

Yes — installation is central to what we do. We design and install whole-home audio and video, home theaters, media rooms, outdoor audio, lighting and motorised shades, and full smart home automation.

Do you provide support after installation?

Yes. We provide ongoing service and support to ensure systems continue performing as intended — not just on installation day, but over the long term.