LM-84IA Vacuum Tube Integrated Amplifier

LM-84IA is a high-performance Vacuum Tube Integrated amplifier that balances premium sonic quality with user-friendly practicality.

It is fitted with high-quality wide-bandwidth EI output transformers for extended frequency response and stable performance, paired with a model-exclusive custom toroidal power transformer that features low magnetic leakage and delivers a clean, sufficient power supply. The pre-amplifier stage employs one 12AX7 and two 12AU7 tubes to produce warm, natural tonality with rich sonic details, while the power stage uses four EL84 tubes in a Class AB push-pull configuration for strong driving force and crisp dynamics.

For daily convenience, the unit includes a remote control for easy volume adjustment and core function operation, along with a 30-second power-on mute delay to ensure safe system startup and allow vacuum tubes to reach a stable operating state. It also integrates a dedicated headphone amplifier circuit for direct personal listening, and comes with a handy plug-in tube cover that protects tubes from dust and impact while enabling easy maintenance.