Mark Levinson Monoblock Amplifier 33 H

Description:
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The Mark Levinson No. 33H is a high-end monoblock amplifier that offers audiophile performance at the highest level. With a power of 150 watts at 8 ohms - up to an impressive 1200 watts at 1 ohm - it is suitable for even the most demanding speaker loads. It was fully constructed in dual-mono design, which means that each amplifier is completely symmetrically built internally - including separate power supplies for each channel. This ensures exceptional channel separation, minimal distortion, and excellentdynamics.

The 33H is not just a technical masterpiece, but also a real powerhouse: With a weight of around 100 kg per unit and a massive housing with cooling fins, it radiates pure power and precision. An integrated power supply regenerator ensures that the sensitive input stages are supplied with clean, stabilized power - a detail that ensures extreme sonic purity. The amplifier operates in the Class A range for lower power levels and can deliver enormous currents when needed.

Sonically, the No. 33H impresses with absolute control in the bass, silky highs, and a natural, musical midrange reproduction. Voices seem tangible, instruments are vivid and authentic - even in complex musical passages. It is excellent for high-quality speakers and discerning listeners who value resolution, control, and musical depth.

The monoblocks are meticulously maintained, technically flawless, and apart from some scratches on one side and the outer side, they are also in very good visual condition (see photos).



Link to the test:LEVINSON33H

Technical specifications:

Amplifier type:Mono amplifier, fully symmetrical (dual-mono design)
Amplifier class:Class AB (with a high Class A proportion at low power)
Rated power:- 150 W @ 8 Ω - 300 W @ 4 Ω - 600 W @ 2 Ω - 1200 W @ 1 Ω
Frequency response:20 Hz – 20 kHz (±0.5 dB)
Total Harmonic Distortion (THD+N):< 0,01 %
Signal-to-noise ratio:> 105 dB at full load > 80 dB at 1 W
Input impedance:- 100 kΩ (balanced) - 50 kΩ (unbalanced) Input sensitivity approx. 1.59 V for full output power
Voltage gain: 26.8 dB
Output impedance:≤ 0.05 Ω
Damping factor:> 800 at 20 Hz
Power supply:approx. 3.4 kVA toroidal transformer, separate supply for input/output stage
Power supply capacity:4 × 60,000 µF capacitors per monoblock
Power consumption:
- approx. 540 W at idle - approx. 210 W in standby
Dimensions (W × H × D):280 mm × 470 mm × 580 mm
Weight:approx. 100 kg per monoblock
Connections:XLR (balanced), RCA (unbalanced), WBT speaker terminals