Left Channel more Powerful than Roght. Why?

[jay]

Hi,

I am facing a peculiar problem.Whenever I am playing my deck or Tuner through my Amp though the audio is superb but the left channel seems to be more powerful than right.In the display meter the left channel rises more than the right at same volume and also during balancing if I put the other channel full by keeping the other channel completely off the output of the left channel is more than right.

What can be the reason?

 

[john_k_antony]

Hi,

I am facing a peculiar problem.Whenever I am playing my deck or Tuner through my Amp though the audio is superb but the left channel seems to be more powerful than right.In the display meter the left channel rises more than the right at same volume and also during balancing if I put the other channel full by keeping the other channel completely off the output of the left channel is more than right.

What can be the reason?

Jay,

Please check if the left speaker is close to hard walls than the right speakers. One reason left channel is exaggerated is due to the fact that the sound from left speaker is getting reflected too much than the right channel before reaching your ears.

One more thing you can try doing is to measure the SPL from the near field. Place the SPL meter very close to the speakers and then measure the SPL level. This way you can identify whether the room is playing the spoil sport or there is something wrong with your equipment.

Thanks,
John.

 

[reubensm]

if the level indicators on the amp show that the left is louder than the right, then its not the speakers

try reversing the input cables and observe but its not likely to be the source

there can be many reasons, leaky caps on one channel of your amp or even a worn dual audio pot (your volume control) can cause this issue. I even once came across a case wherein the balance control was faulty. In short you'd need to run some more checks.

If your amp has the pre-power "U" interconnects at the back, try switching these as well to check the preamp and poweramp sections, separately.

Check for loose contacts and the cabling as well (again, not likely to be the reason)

 

[jay]

Jay,

Please check if the left speaker is close to hard walls than the right speakers. One reason left channel is exaggerated is due to the fact that the sound from left speaker is getting reflected too much than the right channel before reaching your ears.

One more thing you can try doing is to measure the SPL from the near field. Place the SPL meter very close to the speakers and then measure the SPL level. This way you can identify whether the room is playing the spoil sport or there is something wrong with your equipment.

Thanks,
John.

Thanks but its nothing to do with the speakers and their positioning because my other Yamaha Amp sounds perfect in terms of balance of output in the same speaker setup and at the same place.

 

[jay]

there can be many reasons, leaky caps on one channel of your amp or even a worn dual audio pot (your volume control) can cause this issue.

In this case how serious is the issue?Will a normal servicing by a mechanic help?

 

[reubensm]

In this case how serious is the issue?Will a normal servicing by a mechanic help?

Generally not a serious issue but please do all the external checks before reaching out internally. There is also an outside posibility that your amp's level indicator's calibration has gone out Audio enthusiasts tend to apparently hear stuff that does not exist at times, I have as well

 

[availlyrics]

Does it have mechanical/ analog pot for adjusting L/R balance? My NAD C352 amp was giving same prob. chg in pot. corrected the fault. Try changing / swapping / cleaning interconnects & use h/p to monitor.

 

[Dude111]

if the level indicators on the amp show that the left is louder than the right, then its not the speakers

try reversing the input cables and observe but its not likely to be the source

I have always noticed this myself that LEFT is slightly louder than right but it shouldnt be enough to compromise it....

I listen to my cassettes in Mono (Stereo to Mono adapter) and the music sounds fine...

 

[reubensm]

Imbalance can be caused by several reasons, try difference sources and try to narrow down on the reason. Tackle the room acoustics only after you've done your system checks. Once when I noticed imbalance in my rig, I tried everything but the imbalance still persisted. Finally I got my ears checked and the doctor told me that one ear was blocked. Got the ear wax drained and the imbalance was gone

 

[sanddy222]

It is very simple, see I was owning a music shop years back. I came across many tape decks like nakamichi, victor, technics n more. U can just open ur tape deck n there r two level adjusters inside labelling right channel n left channel, with the small screw driver u cab adjust the output level. Another thing adjust it quite slowly, while playing some mudis so that u can u can know the difference.

Sandy

 

[Shivam]

Two of the common reasons -

The coils in the head are not exactly parallel leading to a compromise during azimuth adjustment. In this case either get the head azimuth aligned in such a way that the channels sound equal in loudness but this can lead to decrease in high frequency levels or get a new head.

If the head is fine then the levels for each channel need adjustment. This needs the 'level tape' (used to be available from Sony) which comes with a specific tone at exactly equal levels in both the channels. (1K/315Hz if I remember correctly). The settings should be done for -4 dB if you have UV or LED meters. If not, use an oscilloscope.