sub clipping when changing source

[pewternhrata]

mnartin logan dynamo 300, slight humm when nothing is playing, and clips when i switch sources. any ideas

 

[Tom V.]

mnartin logan dynamo 300, slight humm when nothing is playing, and clips when i switch sources. any ideas

It is likely not "clipping" the input signal. When the receiver loses the audio signal/codec momentarily (like changing inputs) it should mute all preout jacks until the signal is re-locked. If this isn't happening, the subwoofer can produce a moderate *TUMP* type of noise.

I'm assuming the subwoofer performs fine otherwise?

Tom V.
Power Sound Audio

 

[pewternhrata]

Old thread but still looking for answers. I hooked up the sub via line level for the past few months no issues at all. Recently tried using the lfe again and still getting a constant hum and thump between switching sources. Could it be a bad sub out on the denon?

 

[pewternhrata]

This may shed some light and help me out as well...reason I want to use the lfe on the sub is so I can set xover for the polks to 100 and send everything 100 and under to the logan. My current connection is speaker A to the polks and speaker B to the logan. Fronts set to large. Ive read the polks can produce down to mid 30's which I see no way possible and low end on them is too boomy. im only running a 2.1 setup.

 

[Sheep]

This may shed some light and help me out as well...reason I want to use the lfe on the sub is so I can set xover for the polks to 100 and send everything 100 and under to the logan. My current connection is speaker A to the polks and speaker B to the logan. Fronts set to large. Ive read the polks can produce down to mid 30's which I see no way possible and low end on them is too boomy. im only running a 2.1 setup.

My Yamaha did this when turning on or off, and switching inputs. Solution was to buy a new Recevier (you know you want to). Usually stuff like that isn't very "fixable". If someone has other experience they can chime in but I would maybe see if you can swing a new receiver in the future.

SheepStar

 

[KEW]

This may shed some light and help me out as well...reason I want to use the lfe on the sub is so I can set xover for the polks to 100 and send everything 100 and under to the logan. My current connection is speaker A to the polks and speaker B to the logan. Fronts set to large. Ive read the polks can produce down to mid 30's which I see no way possible and low end on them is too boomy. im only running a 2.1 setup.

So why are you using Speaker B high level outputs to the sub instead of the subwoofer RCA connection? Did I miss something?

 

[Sheep]

So why are you using Speaker B high level outputs to the sub instead of the subwoofer RCA connection? Did I miss something?

"Recently tried using the lfe again and still getting a constant hum and thump between switching sources. Could it be a bad sub out on the denon?"

SheepStar

 

[KEW]

Okay, thanks!

 

[pewternhrata]

Would running the receiver in 5 channel stereo with fronts set to small (for the polks) and rears set to large (for the logan) help me acheive the xover im looking for?

 

[Sheep]

Would running the receiver in 5 channel stereo with fronts set to small (for the polks) and rears set to large (for the logan) help me acheive the xover im looking for?

Sounds like bandaids and stop gaps. You'll never be satisfied with it in the long run, so I would see about getting a new amp, or having it repaired.

SheepStar