You really should use some audio CDs that you are familiar with and of known good sound quality to use for testing purposes.
If the output of your cable box is crappy, that is no doubt a case of "garbage in, garbage out". The content of what it is receiving is going to be highly variable.
One that I use is the RCA recording of Pictures at an Exhibition by the Chicago Symphony. It is available in both CD and SACD and the fidelity and range of tones and dynamics is a great test for a system.
Another one that is very good is Ry Cooder's JAZZ CD. The bass and tuba are very good tests of the bass, and the wide range of instruments will test the accuracy of reproduction nicely.
There is no reason to suspect that your speakers are the problem; those are fairly decent speakers that have had good reviews. Your receiver, however, may be distorting when played loud due to its inadequate (500W) power supply. Your receiver is really inadequate for those OMD15 speakers, which have a low impedance and need more current than the SR6006 can supply.
One thing that would be a huge sonic upgrade for your system would be to get rid of your receiver and get a Cambridge Audio 650R receiver. Its audio quality is amazingly good; far better than any of the Japanese receivers, even at the $3000 price level. Its power supply has a 1500 watt rating, 3 times as large as the SR6006!!
, which allows it to put out 100 watts per channel with ALL SEVEN channels driven! For 5.1 operation, it also lets you biwire the front channels for 200 watts per channel.
No other receiver I know of even comes close to matching its power or audio quality. It can drive any speakers made without breaking a sweat.
Read the Home Theater magazine article on it, and you will start to get the picture. It has the most real power of any receiver on the market, and the lowest distortion by far.
Originally Posted by sumbadhatharry
Hello all. I find myself in a situation that is odd because it should be something straight forward .
I recently upgraded my system and i am wondering if my speakers are bad or if bad sources are just that much worse for sensitive equipment. Here is what i have:
Mirage OMD-15 L/R
Mirage OMD-5 SR/SL RSR/RSL
Now i know that this is not an audiophile system but it seems that it is really sensitive or really accurate or that my speakers are bad. Some sources sound great and some sound awful. Akira on Blu-ray using the 192/24 Japanese TrueHD is pure awesome , my comcast cable makes me think my speakers are blown. When i use the comcast cabke box as the source i get pops and raspy voices like i have a blown voice coil or bad tweeter.
it isnt just the Cable box though, I have some blu-ray disc that dont sound so great either. Granted it is not often that a blu-ray disc will make me question my set but it does happen.
I have used the DVE blu-ray audio test for frequency sweeps and low frequency buzz and rattle test and my speakers have no problems with those, no pops, hissing, crackling, no blown woofer or midrange noise, nothing. I just bought a digital multimeter to measure the ohms and I will try that tomorrow but I am thinking that the system is just showing me how bad some sources are and the deficiency of some some studios remastering.
Can anyone comment on this ? Again I know that this is not a hi-fi ir audiophile system but is it normal to have these “awakenings” so to speak where each out of pkace sound or bad recording is just that much more noticeable ?