Swipe or use the previous and next buttons to browse. Select an image to open a magnified view.

McIntosh Labs

MA2375 Vacuum Tube Integrated Amplifier

Name: MA2375 Vacuum Tube Integrated Amplifier
Brand: McIntosh Labs
SKU: MA2375
Price: 15000.0 USD
Availability: InStock

on-demo

in-stock

$15,000

McIntosh’s first vacuum-tube integrated amplifier in more than a decade, the MA2375 combines a fully analog vacuum-tube preamplifier and power amplifier in one chassis. It delivers 75 watts per channel through McIntosh Unity Coupled Circuit Output Transformers, with dedicated 4-, 8-, and 16-ohm speaker connections.

A quick question

Ask Pearl Audio

Email subject: Question on the MA2375

A Fully Analog McIntosh Integrated Amplifier

The McIntosh MA2375 brings a vacuum-tube preamplifier and power amplifier together in one fully analog component. It is McIntosh’s first vacuum-tube integrated amplifier in more than a decade, delivering 75 watts per channel through Unity Coupled Circuit Output Transformers with dedicated connections for 4-, 8-, and 16-ohm loudspeakers.

Two balanced and three unbalanced line inputs make the MA2375 a capable analog system center. Its configurable phono input supports moving-magnet, low-output moving-coil, and high-output moving-coil cartridges, with adjustable capacitance, resistance, and gain. A five-band analog equalizer provides optional tonal adjustment at 30 Hz, 125 Hz, 500 Hz, 2 kHz, and 10 kHz, while twin McIntosh Watt Meters display left- and right-channel output in watts and decibels.

Built for the System Around It

Full-range stereo preamplifier and mono subwoofer outputs provide paths for system expansion. Power Control, Data Ports, RS232, Home Theater PassThru, and the included remote support coordinated operation, while Power Guard SGS® and Sentry Monitor™ protect the amplifier and connected loudspeakers. For private listening, the High Drive headphone amplifier includes Headphone Crossfeed Director (HXD®).

The tube complement comprises four KT88 output tubes, four 12AT7 driver tubes, two 12AX7A preamplifier tubes, and two additional 12AT7 preamplifier tubes. A polished stainless-steel chassis, visible tube illumination, and blue McIntosh Watt Meters give the MA2375 its unmistakable McIntosh presence.

Planning and Installation

The MA2375 measures 17 13/16 inches wide, 9 15/16 inches high, and 20 7/16 inches deep, and weighs 93 pounds. Pearl Audio can help evaluate loudspeaker connections, configure the phono input around your cartridge, plan suitable support and ventilation, and arrange a private in-store audition.

A perspective from Pearl Audio

John’s Take

I have been waiting a long time for McIntosh to build another all-tube integrated amplifier. Roughly twenty years ago, from 2005 through 2008, Pearl Audio sold the —an earlier expression of this same fundamental idea. During that period, I personally owned a tube preamplifier with two tube amplifiers operating as monoblocks. I know what a larger McIntosh tube system can bring to a listening room, but I have always appreciated the elegance of concentrating that experience into one component.

That is what makes the MA2375 so appealing to me. Its tube preamplifier and tube power amplifier create a complete McIntosh tube system in one chassis. It has the presence and character that draw people to tubes, without requiring a collection of separate components and cables. For someone who has wanted a serious McIntosh tube system but prefers a simpler, more cohesive installation, the MA2375 may be the most convincing answer McIntosh has offered in years.

McIntosh MA2375 vacuum tubes and rear connection detail

All-analog architecture

A vacuum-tube preamplifier and power amplifier share one fully analog component, delivering 75 watts per channel.

McIntosh MA2375 rear panel with analog inputs, outputs, and control connections

Built around your system

Line-level and configurable phono inputs, plus preamplifier and subwoofer outputs, support a carefully planned analog system.

McIntosh MA2375 illuminated blue meters, display, and protected preamplifier tubes

Control with confidence

Five-band analog equalization, McIntosh Watt Meters, Power Guard SGS® and Sentry Monitor™ provide adjustment, feedback and protection.

Swipe to explore

Experience the McIntosh MA2375

The video contains instrumental music and no spoken narration. The MA2375 features shown on screen are summarized in the following section.

Features at a glance

Five defining capabilities

The five cards below organize the MA2375 around its essential functions: amplification, phono playback, analog control, system integration, and protection with private listening.

01 · Amplification

Tube architecture, made visible

The circuit uses four KT88 output tubes, four 12AT7 driver tubes, two 12AX7A preamplifier tubes, and two additional 12AT7 preamplifier tubes. A polished stainless-steel chassis frames the illuminated tubes and blue McIntosh Watt Meters.

02 · Phono playback

Configure the phono input

The MA2375 supports moving-magnet, low-output moving-coil, and high-output moving-coil cartridges. Adjustable capacitance, resistance, and gain let the phono stage be configured around the cartridge.

03 · Analog control

Adjustment and visual feedback

A five-band analog equalizer provides optional tonal adjustment at 30 Hz, 125 Hz, 500 Hz, 2 kHz, and 10 kHz. Two Watt Meters display left- and right-channel output in watts and decibels.

04 · System integration

Connections for expansion

Full-range stereo preamplifier and mono subwoofer outputs provide expansion paths. Data Ports, RS232, Home Theater PassThru, Power Control, and the included remote support broader system operation.

05 · Protection & headphones

Protection and private listening

Power Guard SGS® and Sentry Monitor™ protection technologies monitor operation. The High Drive headphone amplifier includes Headphone Crossfeed Director (HXD®).

Specifications

Architecture: Fully analog vacuum-tube integrated amplifier
Rated output: 75 watts per channel
Speaker connections: 4, 8, and 16 ohms
Line inputs: Two balanced and three unbalanced
Phono input: Moving magnet, low-output moving coil, and high-output moving coil, with adjustable capacitance, resistance, and gain
Outputs: Full-range stereo preamplifier and full-range mono subwoofer
Equalizer: Five-band analog: 30 Hz, 125 Hz, 500 Hz, 2 kHz, and 10 kHz
Control: Data Ports, RS232, Home Theater PassThru, Power Control, and included remote

Purchase Options: In-Store Pickup & Portland-Area Installation

The MA2375 weighs 93 lb (42.2 kg) net. Its packaged dimensions are 25.25 × 23.25 × 14.5 in (64.1 × 59.1 × 36.8 cm), and its packaged weight is 103 lb (46.7 kg). McIntosh purchases begin with an in-store consultation and audition at Pearl Audio. After your visit, arrangements may be completed at the store or later by phone or email, with pickup at Pearl Audio or local delivery and installation available within the Portland, Oregon service area. McIntosh products are not available for carrier delivery to customer addresses.

Dimensions

Component H × W × D: 9 15/16 × 17 13/16 × 20 7/16 in (25.2 × 45.2 × 51.9 cm) Packaged H × W × D: 14 1/2 × 23 1/4 × 25 1/4 in (36.8 × 59.1 × 64.1 cm)

Front dimension drawing of the McIntosh MA2375 showing its width, height, chassis height, and foot spacing — **Front view**

Top dimension drawing of the McIntosh MA2375 showing overall depth and rear connection placement — **Top view and rear connections**

Side dimension drawing of the McIntosh MA2375 showing its chassis depth and front-panel projection — **Side view**

Reference materials

Product Resources

Explore the MA2375 in greater detail or keep the operating information close at hand.

MA2375 BrochurePDF · 10 pages

MA2375 Brochure Front page of the McIntosh MA2375 product brochure

Owner's manualPDF · 20 pages

McIntosh MA2375 owner's manual cover with the model title and a front view of the vacuum tube integrated amplifier

QR code to the McIntosh MA2375 product page

View the MA2375 on McIntoshLabs.comOpen McIntosh’s manufacturer product page

Listen before buying

Hear the MA2375 by appointment in one of Pearl Audio’s two professionally designed demonstration rooms, with time to compare and ask questions.

Delivery & installation

Portland-area delivery and installation help ensure that placement, connections, ventilation, and system configuration are handled with care.

Support for as long as you own it

Pearl Audio supports everything we sell for as long as you own it—whether the answer comes by phone, in your home, or through factory service.

A path for what comes next

Trade-in assistance and qualifying 100% Trade-Up options give you flexibility when your listening priorities or system change.

Private audition

Schedule an MA2375 audition

In-store request