Problem with Multi Analog Connection between Sony Blu-ray and B&K Pre-amp

[Audio2004]

Hi guys,

Happy Friday to All!!!

I’m having the old Sony S550 and B&K reference 50. Before I used the digital cable between them to listen to movie and now I want to use Multi Analog connections to listen the HD sound of bluray movies. Last night after I connected them, I changed Audio Output of Sony player to “Multi Channel Annalog” and adjusted speaker settings in “Audio Settings” to match with my system. And then in DVD input of B&K pre-amp, I changed it to DVD-Audio and 5 speakers. After I did all of the setups, I went back to Sony player to run Test Tone. All 5 speakers have sound except subwoofer. I came back and doubled check the setup of the bluray and preamp and I selected YES at subwoofer. I don’t know what’s wrong with it. Can you please help if I missed something in my setup? Also I ran Test Tone of my pre-amp and all speakers & sub had sound. I’m really appreciated your help in advance!

 

[j_garcia]

You have to use the speaker settings in the player, not the receiver. On the receiver side you likely have settings that adjust the levels on the multichannel input, but the size, delays, etc... are set only in the player when using analog.

Also, DVD-A and SACD are different than movies, so if you try a movie via anlog and it works fine, then you will need to make some adjustments for hirez audio vs movies. Movie audio formats have a +10dB offset built into them on the LFE channel, something that SACD and DVD-A lack. So if your player doesn't have a setting to account for this, and many do not, you will have to add +10dB when you listen to them either in the player or the receiver.

 

[Audio2004]

Hi J_Garcia,

Thanks for your info.. Yes, I did all speaker settings in the player. I believe I need to do some adjustments on my B&K pre-amp in order for the subwoofer working. I hope someone has an experience with the B&K pre-amp can help me with this.

 

[j_garcia]

I have only worked with the B&K receivers, not the pre/pros, but there typically is not a way to "unassign" a channel from the multichannel inputs. It isn't like a digital input, where everything distributed by the receiver; it should be going through minimal processing and then on to the amp. So it sounds like in your case it is either set too low, or there is no signal.

You can test that input by connecting one of the other channels to it to see if you are getting sound, as well as test the output from the player to a different channel to see if you are getting anything.

Also, did you set some or all of the speakers to small in the player?

 

[Swerd]

I have a B&K 507 receiver, but as far as I can tell, it's pre-pro section is the same as your Ref 50. I don't have a multi-channel music player, so I haven't done the set up your are trying.

If I understand the manual correctly, you should already have a RCA interconnect between your subwoofer and the Zone A Sub Audio Out (see page 16 of the manual). For DVD-A you must also run a RCA interconnect from your player's subwoofer output to the DVD Audio In Sub RCA plug on the back your Ref 50 (see page 14). You may have already done that.

Go into the menu of the audio source and make sure every thing is activated so it can decode multi channel music and sent the audio analog signals out to your Ref 50.

Check all your interconnects and plugs. Good luck, and if you find the fix, let us know.

 

[MinusTheBear]

In your blu-ray player settings check to see if there is a large/small setting for the speakers. If so set them to small.

 

[markw]

Let's isolate the problem?

If you run the Blu-ray players subwoofer output directly to the subwoofer, bypassing the pre-pro, does the sub work?

If it does, it'll point to the pre/pro and we can rule out the BRP as the problem.

 

[Audio2004]

Last night I tried all suggestions from you guys and finally the sub worked when I connected from blu-ray player out to sub directly. After I watched the whole movie of Season of The Witch, the sound is so so, not big step up from DTS or regular surround sound. I will try to play around with my pre-amp next couple days to see why the sub does not work and will report back in next couple days. Also I probably start to search for new pre-amp with HDMI connection . Do you have any suggestion? I tried Emotiva UMC-1 and some how I did not like it in term of sound. My system will be 80% of 2 channels music and 20% of movie.

Thanks so much!