Audyssey - Calibration of Onkyo 705 with NOW SVS 7.2

[Big Daddy]

Originally Posted by -dase-

This is why I suggested raising the crossover for the sub instead of lowering the crossovers on the speakers.

If they truly are capable of lower frequencies than what audyssey set them at then I would re-run it to see if your results come out different and more acceptable.

Let's not get confused here. Onkyo does bass management according to the following diagram.

The Low Pass Filter (LPF) of LFE has nothing to do with the high pass crossovers of the other speakers. The LFE (.1) channel is programmed by audio engineers and usually goes up to 120Hz. With new blu-ray discs, this is probably a reduntant and obsolete option. Unfortunately, there are some older DVD's that may have an LFE channel that is full range or go a lot higher than 120Hz. To protect the subwoofer and make sure the quality of sound is maintained, we should always set the LPF of LFE to 120Hz. This has nothing to do with the other speakers. Audio hole is created if you set the LPF of LFE to a lower number than 120Hz.

It doesn't matter what the frequency response of your speakers (as reported by the manufacturer) are. Assuming the speakers are from a reputable manufacturer, those measurements are made in an anechoic chamber under ideal conditions. Your home theater room is not an anechoic chamber. The location of the speakers, the walls, furniture, rugs, curtains, and even your body may have an effect on the response of the speakers.

As I said before, if you increase the high pass crossover filters as reported by Audyssey, you should be ok. If you lower them, Audyssey will not perform corrections on those additional frequencies that stay in the speakers and will not go to the subwoofer. According to Chris at Audyssey, the low frequency correction filters of Audyssey have 8 times more resolution and it is better to let the subwoofer does its job.

If you want, rearrange the room and run Audyssey again. Make sure you place the microphone in all 6 or 8 positions. Basic Audyssey in some receivers recommends 6 positions and the more advanced Audyssey in more expensive receivers recommends 8 positions.