Return to a list of products

Integrated Amplifier

※ Click to enlarge the photo
LMA-80
R- コア・電源トランス

LMA-80

  • LMA-80 amplifier employs relatively low output power of 2x40W ( at 8 ohm ).
    This amplifier also employs R-Core Transformer which is normally used in medical equipments because of very low noise emission. The magnetic flux of R-Core transformer is less then 1/10, and noise level is less than 1/2 compared with the conventional EI-core transformer. R-Core transformer has an excellent ability to meet instantaneously the need for a greater power, if needed, thus allowing dissipation of instantaneous heat generated by power overload.
  • Power drive circuit is designed with FET double stage direct coupling differential amplifier to obtain the range of 5Hz to 100k Hz .
    When volume is attenuated -20dB or -40db there is no noticeable difference in the above frequency response.
  • Sound control circuitries such as treble, bass, balance and loudness are omitted to get pure sound, that is, “ accuracy in sound”
  • Large condensers, 4x10,000uF enables the delivery of big power for large volume of sound without distortion.

Specifications
Output power 2 x 68W ( at 4 ohms), 2 x 40W ( at 8 ohms) at both channel driven, Harmonic distortion 0.01% (20Hz – 5 Hz- 100 k Hz + / -3dB, at 1W ( 8 ohms load.), Sensitivity/ input impedance: Phono: 2.5mV, Line :180mV / 47 k ohms, Input terminal: 4 x RCA, 1 x XLR, Output terminal : 2 x speaker terminal