Integrated amplifiers — Line Magnetic LM-211IA

The LM-211IA is a tube integrated amplifier from Line Magnetic, built around the substantial 211 output tube with genuinely flexible triode and ultralinear operating modes. The LM-211IA brings Line Magnetic's considered tube-circuit engineering to a complete integrated chassis with switchable circuit topology.

Key specs that matter

Three single-ended inputs plus a dedicated CD input are provided, with input impedance at a high 100k ohms single-ended. Output power varies meaningfully by operating mode - 15W per channel in triode mode, or 32W per channel in ultralinear mode - a genuinely substantial difference reflecting the fundamental circuit character change between these two classic tube operating configurations. Frequency response spans 10Hz to 50,000Hz within plus-or-minus 3dB. Signal-to-noise ratio is 88dB. At 376 x 345 x 191.5mm and 19.6kg, the LM-211IA maintains a genuinely manageable footprint for a 211-tube-based design.

Sound and use context

Expect the switchable triode/ultralinear operation to genuinely reshape the amplifier's character - triode mode favours a more intimate, harmonically rich presentation at 15W, while ultralinear mode trades some of that intimacy for considerably greater 32W output and control.

Pairing

The triode mode's 15W output suits genuinely efficient loudspeakers, while ultralinear mode's 32W accommodates a somewhat wider range of loudspeaker sensitivities.

Alternatives

Line Magnetic's own LM-216IA Plus and LM-845 Premium offer alternatives at different output levels within the same broader tube-integrated catalogue. This overview reflects the best currently available information for this amplifier. 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.