User’s Manual
for
Certon M21
Power Amplifier
Страница 1: ...User s Manual for Certon M21 Power Amplifier ...
Страница 2: ... on a soft surface Do not operate near a heat source or in a confined area Do not use with a damaged power cord Use main plug to disconnect from power grid Do not remove cover A lightening bolt triangle is used to alert the user of the risk of electric shock An exclamation point triangle is used to alert the user of an important operating or maintenance instruction ...
Страница 3: ...ion to the polarity of the loudspeaker Make sure the wires are firmly attached and are not short circuiting the outputs of the amplifier Connect the RCA type phono or XLR input of the M21 to the audio output of your pre amplifier home theater processor or other similar audio equipment Make sure the audio source toggle switch in the back is in its corresponding position Attach the power cord to the...
Страница 4: ...rols 1 On off mains switch 2 Loudspeaker terminals 3 RCA audio input 4 XLR audio input 5 Bal unbal Switch 6 Trigger in 7 Trigger out 8 Power inlet 9 On off push button 10 Clip indicator 11 Protection indicator 9 10 3 11 5 4 1 8 2 6 7 ...
Страница 5: ...rminals The M21 is non inverting Do not short circuit the loudspeaker terminals Protection circuitry within the amplifier will protect the unit from most overload conditions but short circuits may seriously harm your M21 It is recommended not to use loudspeakers with a nominal impedance of less than 4 ohms It is advised not to use highly capacitive loudspeaker cables as this reduces the phase marg...
Страница 6: ... use Removing the 12 VDC signal and or pressing the on off push button again takes the amplifier back to stand by mode When the unit switches on or off a discrete click pop or chirp may be heard in the loudspeaker This is normal for the M21 because of the absence of a relay in the audio signal path The amplifier has a clip indicator 10 The clip indicator is an instrument to determine an operating ...
Страница 7: ... offset as this may subject the amplifier to unnecessary stress In the event of loud thumps clicks or pops from the loudspeaker at reset do not proceed but seek assistance from a qualified technician There is a heat switch inside the enclosure The heat switch protects the amplifier against excessive and potentially harmful temperatures that may result e g from loud listening for prolonged periods ...
