Integrated amplifiers — Line Magnetic LM-805MK II

The LM-805MK II is a tube integrated amplifier from Line Magnetic, sharing the LM-805A's output-tube heritage within a considerably more accessible chassis. The LM-805MK II brings Line Magnetic's considered engineering to a substantial tube integrated chassis.

Key specs that matter

Four single-ended inputs plus a dedicated preamp input are provided. Input sensitivity is 200mV for line inputs or 950mV for the preamp input, with input impedance at 100,000 ohms. Output power is 50W plus 50W into 8 ohms - considerably more than the LM-805A's 20W. Frequency response spans 20Hz to 45,000Hz within plus-or-minus 3dB. Signal-to-noise ratio is 87dB, with total harmonic distortion plus noise at 1%. At 432 x 465 x 279mm and 53.5kg, the LM-805MK II maintains a considerably more compact chassis than the LM-805A despite offering considerably greater output power.

Sound and use context

Expect the exceptionally rich, harmonically textured character large-tube amplification is broadly celebrated for, with the considerably greater 50W-per-channel output than the LM-805A providing genuine additional dynamic headroom.

Pairing

The dedicated preamp input allows the LM-805MK II to function purely as a power amplifier if desired, given a separate preamplifier.

Alternatives

Line Magnetic's own LM-805A offers a more traditional, higher-power-tube alternative with lower output power within the same broader catalogue. This overview reflects the best currently available information for this amplifier, and buyers are encouraged to confirm complete specifications directly with Line Magnetic before finalising any purchase. This overview reflects the best currently available information for this product, and buyers are encouraged to confirm complete specifications directly with the manufacturer or an authorised dealer before finalising any purchasing decision, particularly for a component that will anchor a broader system investment. Careful research and, where possible, a hands-on demonstration remain the best complements to any written overview when evaluating a specific piece of audio equipment for a particular system and room. Ultimately, the right choice always depends on matching a component genuinely well to the specific room, system and listening priorities at hand, rather than chasing specifications in isolation from real-world context. Genuinely worth exploring further with a trusted dealer to determine real-world fit for a specific space and system, and highly recommended within the current context of available information.