Stereo Power Amplifier / SE-R1

Heat buildup of this unit.

This unit becomes warm when the volume is high. This is not a malfunction.

A "humming" sound can be heard during playback.

  • An AC mains lead or fluorescent light is near the cables. Keep other appliances and cords away from the cables of this unit.
  • A strong magnetic field near a TV or other device may adversely affect the audio quality. Keep this unit away from such devices.
  • The speakers may output noise when a device nearby is emitting powerful radio waves, such as when a mobile phone is on a call.

No sound.

  • Check connections to speakers and other equipment.
  • Check to see if the correct input source is selected.
  • Insert the plugs of the cables to be connected all the way in.
  • Set the speaker selector knob to other than [OFF].

The peak power meter does not operate.

  • In the following cases, this meter does not operate:
    – When the peak power meter light is turned off by pressing [DIMMER].
    – When this unit is muted by pressing [MUTE] on the SU-R1’s remote control. (Only when the input selector knob is set to [DIGITAL].)
    – When the speaker selector knob is set to [OFF].

The system control function is not working.

About Technics devices supporting system control function, click here.

What Technics devices support system control function?

  • You can operate this unit and Technics devices supporting system control function simultaneously with ease on the remote control.
  • About Technics devices supporting system control function, click here.

The unit turns off automatically.

  • Is the auto off function turned on?
    To cancel this function, set to [OFF] the [AUTO OFF] switch which is located on the rear panel.
  • If the SU-R1 is connected to this unit via the system control function, this unit may automatically enter standby mode when the SU-R1 enters standby mode.
  • This unit incorporates a protection circuit to prevent damage caused by heat buildup. When you use this unit at a high volume level for a long period of time, it may turn off automatically. Wait for this unit to cool down before turning on this unit again. (For approximately 3 minutes)

I want to hold the SE-R1 as Power On condition.

  • Step1. Set to [OFF] the [AUTO OFF] switch which is located on the rear panel of SE-R1.
  • Step2. Set to "Off" the "AUTO OFF" function of SU-R1.
  1. Press [SETUP].
  2. Press [ UP ][ Down ] repeatedly to select "AUTO OFF" and then press [OK].
  3. Press [ UP ][ Down ] to select "Off" and then press [OK].
  • Step3. Press unit on/off button of SU-R1 to [ OFF].

I want to improve the measurement accuracy of LAPC.

When the SU-R1 is connected to this unit and "Tone Control" function is "On", please set to "Off" the "Tone Control" function and start measurement of LAPC.