The MA252 features our McIntosh Monogrammed Heatsinks^™ which are connected to advanced high current output transistors. These transistors eliminate the typical amplifier warm-up time so that the MA252 is in peak operating condition from the moment it’s turned on. A powerful control microprocessor is used for smooth system operation, along with some of the latest audio-grade circuit components that deliver the best possible sound.

This amplifier is aimed at audiophiles who value the musical warmth and harmonic richness of tubes, but also desire the current delivery and stability of a modern solid‑state amplifier. In other words: it’s designed for listeners who want experience and excellence in one elegant package.

Performance & Listening Character

With its hybrid architecture, the MA252 brings a blend of tonal attributes:

• Midrange and vocals gain a subtle harmonic depth and warmth often associated with tube amplifiers. This makes voices and instruments feel more alive, more “present”.

• Bass control and dynamics benefit from the solid‑state output stage, meaning that while it might not match ultra‑high‑power amplifiers, in realistic listening settings it holds its own and remains detailed and musical.

• Soundstage and texture: Owners often note the MA252 presents music with ease—letting details emerge without fatigue—and a sense of space and openness. For example: > “I could happily listen to the MA252 for a long, long time.” McIntoshLabs

• System matching: Because the amplifier delivers 100/160 watts per channel (depending on load), it pairs best with speakers of moderate to good efficiency and moderate impedance. While it will drive many systems well, extremely power‑hungry speakers might push it harder. Some user reports reflect this.

Technical Specifications

Here are the key specs of the MA252:

• Power Output (per channel): 100 W into 8 Ω; 160 W into 4 Ω. McIntoshLabs+1

• Number of Channels: 2 (Stereo) McIntoshLabs

• Amplifier Type: Hybrid — Vacuum Tube preamp (2 × 12AX7a + 2 × 12AT7) + Direct‑coupled Solid‑State power amp. McIntoshLabs

• Total Harmonic Distortion (THD): 0.03% maximum (20 Hz–20 kHz) mcintoshcompendium.com+1

• Dynamic Headroom: Approx. 1.8 dB audioperfectionist.com.my

• Signal‑to‑Noise Ratio (S/N): High Level ~97 dB; Phono (MM) ~80 dB. hifiengine.com+1

• Frequency Response: +0/‑0.5 dB from 20 Hz to 20 kHz; +0/‑3 dB from 10 Hz to 100 kHz. McIntoshLabs

• Input Sensitivities / Impedances: High Level Balanced/Unbalanced ~0.6 V/0.3 V; Phono MM ~3.0 mV; Input Impedance High Level ~20 kΩ. referenceaudio.co.uk

• Damping Factor: >200 at 8 Ω; >100 at 4 Ω. audioconcept.com.my

• Inputs: 1 Balanced (XLR), 2 Unbalanced (RCA), 1 Moving‑Magnet phono (MM). Crutchfield+1

• Outputs: Subwoofer mono output; high‑drive headphone amplifier (supports headphones 20‑600 Ω) Audio Advice

• Dimensions (W × H × D): 12″ × 7‑5/8″ × 18″ (≈ 30.5 cm × 19.4 cm × 45.7 cm) McIntoshLabs

• Weight: 28 lbs net (~12.7 kg)