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Preamplifiers — Lamm Industries L2.1 Reference

Description, images, technical data and specifications

Lamm Industries L2.1 Reference
Image source — © Lamm Industries

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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Specifications

  • Model name

    L2.1 Reference

  • Analog inputs (balanced)

    N/A

  • Analog inputs (single-ended)

    3

  • Analog outputs (balanced)

    1

  • Analog outputs (single-ended)

    1

  • Gain (dBu)

    N/A

  • Input sensitivity (mV)

    125

  • Output voltage (V)

    N/A

  • Input impedance (balanced) (Ω)

    N/A

  • Input impedance (single-ended) (Ω)

    47 000 (MM) + 400 (MC)

  • Output impedance (balanced) (Ω)

    N/A

  • Output impedance (single-ended) (Ω)

    N/A

  • Maximum output level (balanced) (dBu)

    N/A

  • Maximum output level (single-ended) (dBu)

    N/A

  • Volume control range (dBu)

    N/A

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

    3

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

    100 000

  • Signal to Noise Ratio (SNR, unweighted) (dB)

    88 (MM) + 86.5 (MC)

  • Total Harmonic Distortion + Noise (THD+N) (%)

    N/A

  • Dimensions (mm)

    11.4 × 48.2 × 35.2

  • Weight (kg)

    7

  • Official link

    https://www.lammindustries.com/products/l21-reference/

Lamm Industries LL2.1

Lamm Industries LL1.1 Signature

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    The 1.1 Signature monaural line-level preamp is a direct replacement for the L1 Signature, which since its introduction in 2010 has become the absolute benchmark of excellence among LAMM line-level preamps. The signature L L 1.1 proudly continues this tradition.

  • LL2.1

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    Lamm Industries LL2.1

    The LL2.1 has a topology that provides the most natural sound in an audio channel using pure Class A operation from input to output; all cascades are single-circuit. The preamp's sound-neutral power supply is equipped with a full-wave vacuum rectifier.

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