Power amplifiers mono — Lamm Industries ML3 Signature

The ML3 Signature is a flagship-tier monoblock power amplifier from Lamm Industries, sharing the ML2.2's substantial input impedance within a somewhat lighter chassis. The ML3 Signature represents Lamm's more ambitious current statement in monoblock power amplifier engineering.

Key specs that matter

Input sensitivity is 850mV, matching the ML2.2. Input impedance is a substantial 41,000 ohms on both connections, also matching. Gain is 25.78dBu at 6 ohms - somewhat higher than the ML2.2's 19.97dBu. Frequency response spans 20Hz to 20,000Hz within plus-or-minus 3dB - a more conservative specification range than the ML2.2's 3Hz-80kHz. Weight is 35.9kg, closely matching the ML2.2.

Sound and use context

Expect the exceptionally rich, harmonically textured character single-ended triode amplification is broadly celebrated for among discerning enthusiasts, consistent with Lamm's broader distinctive American engineering philosophy.

Pairing

As a flagship-tier monoblock, the ML3 Signature pairs best with notably efficient loudspeakers given the inherent power constraints typical of this topology.

Alternatives

Lamm's own ML2.2 offers the more established, longer-standing alternative within the same broader monoblock catalogue.