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Power amplifiers mono — Lamm Industries M2.2

Description, images, technical data and specifications

Lamm Industries M2.2
Image source — © Lamm Industries

The most powerful (monoblock) of Lamm hybrid amplifiers. It is made in the form of monoblocks. The amplifier demonstrates the unique transparency and volume of the sound stage. The output stage on MOSFET high-speed field-effect transistors operates in class A/AB with a high quiescent current. The optimal quiescent current of the output stage for a particular load is selected using a switch with two positions: 1-6 ohms and 8-16 ohms. The 2.2 amplifier provides 220 watts of output power at 8 and 4 ohms in Class A (at the appropriate switch positions), 440 watts at 2 ohms and 600 watts at 1 ohm.

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Specifications

  • Model name

    M2.2

  • Input sensitivity (mV)

    N/A

  • Input impedance (balanced) (Ω)

    41 000

  • Input impedance (single-ended) (Ω)

    41 000

  • Output impedance (balanced) (Ω)

    N/A

  • Output impedance (single-ended) (Ω)

    0.098

  • Max current (A)

    N/A

  • Output power (8Ω) (W)

    220

  • Output power (4Ω) (W)

    440

  • Gain (dBu)

    N/A

  • Frequency response low +/- 3dB (Hz)

    4

  • Frequency response high +/- 3dB (Hz)

    155 000

  • Signal to Noise Ratio (dB)

    N/A

  • Total Harmonic Distortion + Noise (0% global feedback) (%)

    N/A

  • Total Harmonic Distortion + Noise (100% global feedback) (%)

    N/A

  • Max power consumption (W)

    N/A

  • Damping factor

    89

  • Dimensions (mm)

    21 × 43.2 × 49.5

  • Weight (kg)

    31

  • Official link

    https://www.lammindustries.com/products/m22/

Lamm Industries M1.2 Reference

More components

  • ML3 Signature

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    Lamm Industries ML3 Signature

    The ML3 Signature is a single—cycle, respectively, operating in pure class A and developing a power of 32 watts at a load from 4 to 16 ohms. There is no general feedback in it, but if necessary, a weak local operating system can be introduced — the necessary switches and regulators are output to the device body. Thanks to this, the amplifier works confidently with almost any acoustics.

  • ML2.2

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    Lamm Industries ML2.2

    Compared to the previous model of monoblocks (ML2.1), the ML2.2 is distinguished by an improved mains transformer and five pulsation filter chokes (unlike the two in ML2.1). The anode power stabilizer circuit has been improved, and higher-quality components have been applied. The output stage has been completely redesigned, based on the input stage of the ML3 Signature amplifier (it should be noted that the ML2.2 is closer to the ML3 Signature than to the ML2.1 in terms of sound).

  • M1.2 Reference

    Power amplifiers mono

    Lamm Industries M1.2 Reference

    The L2.1 Reference is based on a Class A circuit from input to output without general negative feedback. All cascades, including the high—voltage output, are single-cycle. Selected high-voltage transistors (MOSFETs) are used in the signal path, and the volume control is implemented on a high-quality TKD step potentiometer (Tokyo Ko-on Denpa).

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