I have a few questions on the auto calibration on the Marantz SR7002. This is my first receiver with this feature, so I am a little confused.

First, it came back with my L/R mains at two seperate distances, even though they are of equal distance to the main listening position. One of them is near a side wall, the other is not. Would this account for the distance difference?

Second, it set my L/R mains as large. Any reason they werent set to small?

Third, the sub was set at a -12.5 level. This seems much lower than the other channels. Is there any type of issue with the sub being set a little low/incorrectly?

Fourth, is set the the sub output as Mix, instead of what I would normally use, Sub.

I am not sure if these auto set ups are reliable or not.

Thanks for any insight

>First, it came back with my L/R mains at two seperate distances, even though they are of equal distance to the main listening position. One of them is near a side wall, the other is not. Would this account for the distance difference?<

A better name for "distance" would be delay. Sure, there can be things going on in the room that would cause Audyssey to calculate different delays. How many positions did you measure? Audyssey will perform better the more data you give it to crunch on. I use all eight positions (on my Onkyo 875) even though I really only care about a single listening position.

>Second, it set my L/R mains as large. Any reason they werent set to small?<
It is simply looking at the freq response of your speakers. It is setting them to "large" because it detects that they have an acceptable low freq response (which is good :p). What would be the best thing to do is to set your mains to something like 80Hz, so the subs will handle those freqs. Freqs below something like 100Hz are non-localized, i.e.: they seem to come from everywhere. And because the low freqs are part of a continuum of an acoustic event that has higher freqs also, those higher freqs (sent by your mains) give your brain the directional info that you need to properly "decode" the scene. THX recommends 80Hz crossover, but you can experiment. You'll probably find that anything from 70, 80, 90 will all work fine.

>Third, the sub was set at a -12.5 level. This seems much lower than the other channels. Is there any type of issue with the sub being set a little low/incorrectly?<
That's fine. It detected that your sub was running a little hot. The only problem that having it pull down the sub like that is that if you have your sub set to auto turn-on, the sub might not turn on at lower levels. Just go in your setup and change the level to something like -3 dB and lower the volume setting on your sub.

>Fourth, is set the the sub output as Mix, instead of what I would normally use, Sub.<
That depends on the size and quality of your main speakers (see #2, above). If you do have the low freqs sent to BOTH your mains AND your sub, you will want to reduce your sub volume a bit. Experiment. (I bet it will sound best with it set to "Sub". But, ymmv)

Also, read thru posts in the thread foir your specific receiver. I am sure that you'll find some good stuff.


Look at the Audyssey EQ as a starting point. Have some fun and experiment. :)

I will second all of ghgoldberg's suggestions based on my experience. I use the Audyssey in my HT with my Onkyo 805 and it is a good starting point. I use it for six positions and I noticed the same things with the delay (distance), for instance my RF speaker is closer to the wall on the side based on Room Construction, and Audyssey assigns a different distance to that speaker. While that speaker is closer to the wall it is then also closer to my Acoustic Treatment on the front of the theater. Hence the delay issue. Get an SPL meter from Radio Shack (or buy a Sub from SVS and they will probably throw one in.... :-) ) and you can then fine tune the settings a little bit better for your main listening position. Also, you might want to read up on the HDMI LFE output issues some people have (output is a different level based on source material and receiver input, ie., HDDVD, BLURAY, CD Audio.). The place to start for this would be the Marantz Owners thread as suggested by again ghgoldberg.

Good Luck and enjoy.