Hi Folks,
I'm noticing progressively more and more distortion in the lower mids.
Any ideas where and how to start the trouble shooting process ?
How often should the batteries be changed ? bearing in mind they are being used 12 to 15 hours a day.
Could it be the amps (bi-amping) ?
crossover ?
Help ?
Rich
CABLES !!! Most likely a poor connector or joint somewhere. Try eliminating components by swapping CH for CH etc see if you can follow it around the chain.
Not likely to be your CC batteries they are on all the time and the lifespan is akin to the shelflife.
One channel or both ? Most likely one therefore swap the connectors at the amp end see if it switches side. Logic my dear Watson.
How loud have you been playing the system?
Are you sure its not the Fog Horns?
Listen with your wee golden pommie bastard ear up near the woofer and the mid cones. Isolote if the distortion is from both drivers by turning down the woofer power amps.
The batteries should last for the shelf life ( 3 years....on the circuit thye are on all the time).
Is it both channels? Yes/No
Try a different source and compare... if no change swap the power amps for high/low and compare. No change?
Check the DEQX settings have not changed or the rear speaker connections/biamp settings on the rear panel?
Still not better?
Stop playing mp3 crap and get your ears waxed.
Two Aussies and a Scot,
Mp3 crap......... it did'nt sound crap with that bloody MSB dac. The dac in the deqx is shite ! -where was it made I wonder ?
Its not the fog horn ! Piano , thats where it is most noticeable .
All my music is on the mac , lossless at that. The 2122 is the culprit.
Is it possible the caps in the SAC's need replacing ?
Rich
Its not on the LF. I have tried turning the amps off and its in the mid band, but low.
I thought compression affected the LF most ?
Might be the 2122 recones.......ooops!
download a sig gen and sweep the frequencies of interest, you may find a buzz.
http://www.nch.com.au/tonegen/index.html
As an alternative;
Rich are you getting a head cold?
When my sinuses start playing up with the onset of a snotty one the first thing I notice is distortion like fug to the mids-try some phones into your mac and see if its there too.
A Chernobyl strength curry usually clears it up
You did not switch over from digital source to TT with a dirty needle, did you?
___________
Peter
Only wood dust, all natural
Its the mac. I changed the cable from optical to coaxial.Is it possible for
the optical to get damaged from being stood on? Is the fibre optic signal prone
to interference from surrounding cables ?
It depends ...Originally Posted by richluvsound
The fibre does not like any sqeezing. But you may sqeeze the elephant
(There is no interference.)
___________
Peter
Describe, please, both the symptom and the "progressively more" comment.
- what does it sound like - a range of frequencies affected or few?
- "progressively more" frequencies?, more frequently occurs?or is louder?
That would be bad. Suggests a physical / mechanical break-down with use. That would be bad. How loud are you playing these...?
That's a great idea - try and isolate the offending frequency, if one, or few.
Help us help you...
bo
"Indeed, not!!"
Hi Bo,
It was really bad when I was using iTunes from the laptop.Now I'm using the G5 again and have got rid of the 10 m Toslink and gone coax things have improved tremendously. I realize that I'm hearing
some compression ,but most of my music is apple lossless, so what gives. I was using a really good dac and nada ,but alas that was on loan. I'm listening to Bach as I write and I can hear it in the piano. It's somewhere between 250htz and 400 htz. Could it be the xover point, 290 htz 12db ? I will try and find it with the tone disk .
I did notice the input signal on the Deqx clipping and have turned down the input, again some improvement,but still not good enough.
It does'nt happen when I use the DvD as a transport .So maybe it is just the compression. If it is the 2122 recones ,then Ian can tell Guido not me
Is there a usb device that will give me a digital out via coax ?
Rich
What is this tone disc you speak of ?
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