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MA252 Integrated Amplifier

on-demo
in-stock

The MA252 pairs a four-tube preamplifier with a direct-coupled solid-state power amplifier in a compact open-chassis design. Two 12AX7A and two 12AT7 tubes are visible above the polished stainless-steel chassis.

The amplifier delivers 100 watts per channel into 8 ohms or 160 watts per channel into 4 ohms. One balanced input, two unbalanced inputs, and a moving-magnet phono input keep the source layout straightforward and fully analog.

  • The tubes are part of the experience — Two 12AX7A and two 12AT7 tubes form the preamplifier and remain visible during listening.
  • A deliberately analog input set — Balanced and unbalanced line inputs join a fixed-load moving-magnet phono stage.
  • Compact direct-coupled power — The output stage supplies 100 watts per channel into 8 ohms and 160 watts per channel into 4 ohms.

The compact McIntosh Hybrid Drive integrated

Four tubes, an analog control center, and a wonderfully approachable scale

The MA252 pairs a four-tube preamplifier with a direct-coupled solid-state power amplifier in a compact open-chassis design. Two 12AX7A and two 12AT7 tubes are visible above the polished stainless-steel chassis.

The amplifier delivers 100 watts per channel into 8 ohms or 160 watts per channel into 4 ohms. One balanced input, two unbalanced inputs, and a moving-magnet phono input keep the source layout straightforward and fully analog.

Bass and treble controls, a mono subwoofer output, High Drive headphone listening, and Power Control add practical flexibility without changing the MA252’s clear purpose: a focused, compact McIntosh music system.

A perspective from Pearl Audio

John’s Take

The MA252 has always struck me as one of the friendliest McIntosh amplifiers. The tubes are right there where you can see them, the controls make sense at a glance, and it does not require an enormous rack before the system starts to look intentional. Add a good turntable, a streamer or DAC, and the right loudspeakers and you have a system that feels special every time it is switched on.

Its limits are also refreshingly honest. There is one moving-magnet phono input, no internal DAC, and fewer system-control features than the MA352. In return you get a compact Hybrid Drive amplifier with 100 watts into 8 ohms and 160 into 4. For many rooms, that is not the beginning of a compromise. It is the end of unnecessary complication.

Three things to know

Four tubes, an analog control center, and a wonderfully approachable scale

McIntosh MA252: The tubes are part of the experience
01 · MA252

The tubes are part of the experience

Two 12AX7A and two 12AT7 tubes form the preamplifier and remain visible during listening.

McIntosh MA252: A deliberately analog input set
02 · MA252

A deliberately analog input set

Balanced and unbalanced line inputs join a fixed-load moving-magnet phono stage.

McIntosh MA252: Compact direct-coupled power
03 · MA252

Compact direct-coupled power

The output stage supplies 100 watts per channel into 8 ohms and 160 watts per channel into 4 ohms.

The McIntosh difference

The engineering behind the experience

McIntosh gives its technologies names because each solves a specific problem. Here is what each one does, why it matters in a system, and what you may notice when listening.

In selected McIntosh integrated amplifiers, Hybrid Drive pairs vacuum-tube preamplification with a solid-state power amplifier in one chassis.

On the MA252

McIntosh Hybrid Drive

What it does

In selected McIntosh integrated amplifiers, Hybrid Drive pairs vacuum-tube preamplification with a solid-state power amplifier in one chassis.

Why it matters

It combines the character and dimensionality people value in a tube preamplifier with the control and output capability of solid-state power.

What you may notice

Depending on the model and system, listeners may notice tube dimensionality together with firm, confident loudspeaker control.

Explore the technology and its history
Models with this technology
Power Guard compares the amplifier’s input and output waveforms, reducing input drive when necessary to help prevent clipping.

On the MA252

Power Guard®

What it does

Power Guard compares the amplifier’s input and output waveforms, reducing input drive when necessary to help prevent clipping.

Why it matters

Clipping can sound harsh and can damage loudspeakers. Controlling the drive helps the amplifier stay within its available clean output.

What you may notice

Demanding musical peaks are less likely to become harsh from amplifier clipping. Power Guard is a safeguard, not a source of extra power.

Explore the technology and its history
Models with this technology
Sentry Monitor responds to potentially damaging current by disengaging the output stage. This fuseless protection helps safeguard the amplifier if speaker wiring is accidentally shorted, or if a demanding musical passage combined with a difficult speaker load causes excessive output current.

On the MA252

Sentry Monitor™

What it does

Sentry Monitor responds to potentially damaging current by disengaging the output stage. This fuseless protection helps safeguard the amplifier if speaker wiring is accidentally shorted, or if a demanding musical passage combined with a difficult speaker load causes excessive output current.

Why it matters

A sudden orchestral crescendo or powerful bass passage can demand much more current, especially at high listening levels with a difficult speaker load. If that demand reaches unsafe levels, Sentry Monitor intervenes to help protect the amplifier.

What you may notice

During normal operation, it works in the background. If protection activates, playback may stop; correct the cause and follow the reset instructions for your model. Sentry Monitor is a fuseless protection technology, so there is no output-protection fuse to replace when it activates.

Explore the technology and its history
Models with this technology
Official McIntosh MC462 top detail showing the monogrammed heatsink fins

On the MA252

Monogrammed Heatsinks™

What it does

McIntosh's monogrammed heatsinks are connected to the output transistors and use highly thermally conductive material to help dissipate heat efficiently.

Why it matters

Effective heat management supports stable operation and long-term reliability while the McIntosh monogram makes a functional part visually distinctive.

Explore the technology and its history
Models with this technology
One touch. A system comes to life. McIntosh C55 rear Power Control connections McIntosh MC462 rear Power Control connections C55 OUT → MC462 IN · Explore the demonstration →

On the MA252

Power Control

What it does

Power Control lets compatible McIntosh components coordinate system startup and shutdown. On systems that support it, the connection can also carry meter-illumination commands.

Why it matters

One control component can bring a compatible McIntosh system into operation together.

Explore the technology and its history
Models with this technology
Dimensions

Component H × W × D: 7 5/8 H × 12 W × 16 1/2 D inches   Packaged H × W × D: 19 1/4 H × 22 1/4 W × 13 1/2 D inches

Front panel12 inches wide × 7 5/8 inches high
McIntosh MA252 front panel view
Top panel12 inches wide × 16 1/2 inches deep
McIntosh MA252 top panel view
Side panel16 1/2 inches deep × 7 5/8 inches high; allow additional depth for connected cables
McIntosh MA252 side panel view
Specifications
  • FTC Power Output Rating: 100 W
  • Number of Channels: 2
  • Rated Power Band: 20Hz to 20kHz
  • Total Harmonic Distortion: 0.03%
  • Dynamic Headroom: 1.8dB
  • Frequency Response +0,-0.5dB: 20Hz to 20kHz
  • Frequency Response, +0, -3dB: 10Hz to 100kHz
  • Sensitivity (Phono): Moving Magnet: 3.0mV
  • Signal To Noise Ratio (Phono): Moving Magnet: 80dB
  • Balanced Input: 1
  • Unbalanced Input: 2
  • Phono Input: 1 Moving Magnet (fixed loading)
  • Subwoofer Output: 1 (mono)
  • Headphone Output: 1/4" High Drive
  • Tone Controls: Bass and Treble
  • Output Type: Direct Coupled
  • Speaker Binding Post Type: Standard
  • Unit Weight: 28 lbs
  • Packaged weight: 37 lbs
  • Component dimensions (H × W × D): 7 5/8 H × 12 W × 16 1/2 D inches
FAQ
Is the MA252 fully tube powered?

No. The preamplifier uses two 12AX7A and two 12AT7 tubes, while the power amplifier is solid state.

Does it include a DAC?

No. It is an analog integrated amplifier. A streamer, disc player, or separate DAC connects to a balanced or unbalanced line input.

Which turntables can connect directly?

Turntables fitted with a suitable moving-magnet cartridge can connect to the fixed-load phono input. Other cartridges may require an external phono preamplifier.

How much power does it provide?

The direct-coupled output stage is rated at 100 watts per channel into 8 ohms and 160 watts per channel into 4 ohms.

Can I add a subwoofer?

Yes. The MA252 provides one mono unbalanced subwoofer output.

Does it have Home Theater PassThru?

No. Home Theater PassThru is not listed for the MA252. Consider the MA352 or a larger McIntosh integrated if that function is required.

What tubes are used in the MA252?

The preamplifier stage uses two 12AX7A and two 12AT7 vacuum tubes. Its direct-coupled loudspeaker output stage is solid state.

Can I add Spotify, Qobuz, or TIDAL?

Yes, through a separate streamer connected to one of the analog line inputs. The MA252 itself is fully analog and does not contain a network streamer or DAC.

Is the subwoofer output filtered?

The rear-panel subwoofer connection is a mono, full-range output. Subwoofer crossover, phase, and level are therefore set at the subwoofer or in another system component.

What do the illuminated tubes communicate?

The tubes glow amber during the start-up sequence and green in normal operation. They can flash amber when Power Guard is active.

How should I plan placement and ventilation?

Allow open space around the component, keep ventilation openings clear, and leave additional room behind it for terminated speaker cables, source connections, control cables, and the power cord. Pearl Audio will confirm support and clearance during system planning.

How do I arrange an audition?

Use the Audition control on this page, call Pearl Audio, or email us. We will confirm a private listening appointment and prepare a system appropriate for the MA252.

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

The MA252 weighs 28 lbs. McIntosh purchases begin with a Pearl Audio consultation so we can confirm loudspeaker matching, source connections, placement, ventilation, and system control.

Arrangements may be completed at the store or later by phone or email, with pickup at Pearl Audio or local delivery and installation within the Portland, Oregon service area.

The Pearl Audio Experience

Why Buy from Pearl Audio?

A high-end audio system should be heard, thoughtfully matched, and properly set up. Pearl Audio stays involved from the first audition through installation and long-term ownership.

Listen before buying

Hear the MA252 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.

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