Biamping from a Rotel 1095 question

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  • Taco
    Junior Member
    • May 2003
    • 12

    Biamping from a Rotel 1095 question

    I posted a question here not long ago about biamping my B&W 802's with my 1095 and a new 1080. Someone made the suggestion to see how I liked biamping from my 1095 before purchasing the 1080. Well,
    I finally got around to trying it by using my L and R and L Rear and R rear on my 1095 to biamp and for some reason the mid and tweeter sounded muffled. Did I misunderstand what I was suppose to do? Thanks for your help.
  • Andrew Pratt
    Moderator Emeritus
    • Aug 2000
    • 16507

    #2
    Can you explain how you wired these up? i.e. what sort of interconnects, splitters, speaker wire etc did you use? I'm surprised it sounded worse unless you used some shoddy splitter or something which I doubt you did.




    Comment

    • Taco
      Junior Member
      • May 2003
      • 12

      #3
      Hi Andrew,

      I've tried so many different combos that at this point I'm not sure what caused what. Could you or someone explain or give me a link to a quick study on biamping . . . specifically from a multi-channel amp like my 1095?

      Thanks.

      Comment

      • Danbry39
        Moderator Emeritus
        • Sep 2002
        • 1584

        #4
        Taco,

        You might try this link.

        I think you're most interested in passive crossover bi-amping. If you scroll down, there is a link to just such a process, including a diagram. It's not short, but comprehensive.

        Here is a simpler version, although I think I noticed a mistake with the diagram in that three of the leads move from positive to positive and negative to negative and the fourth moves from possitive to negative and from negative to positive. You'll see what I mean when you go to the link and look at the diagrams. I just don't understand why it would be done this way (as they illustrate) and think they just made a mistake, but, having never bi-amped myself, don't know for sure.

        Link 2



        Keep in mind though that not everyone agrees on the benefits of biamping, especially passive crossover bi-amping.




        Keith
        Keith

        Comment

        • Taco
          Junior Member
          • May 2003
          • 12

          #5
          Thanks. The second link was definitely easier to understand. I guess this means that I need some kind of "Y" shaped interconnects to run from the preamp to the multi-channel amp? I'm absolutely ignorant when it comes to cabling. :roll:

          Let me know what interconnects I need. Thanks again.

          Comment

          • Andrew Pratt
            Moderator Emeritus
            • Aug 2000
            • 16507

            #6
            Yes what you need is some way of getting two RCA outs for the main channels. There are two ways of doing this...one is to buy a splitter that has a male RCA on one end and two females on the other or buy a splitter that has a female on one end and two males on the other...it won't matter much which way you go but I prefer the female to two males approach. Anyway with the spittler all you're going to do is plug one of each of the two arms into two channels of the amp and then attach an interconnect from this splitter to connect it to the Rotel's pre out for the left or right channel...with me so far? (here's an image of a splitter)

            Alright now all you need to do is run a speaker cable from each of the two channels on the amp to the top and bottom inputs on the back of your speaker....remember to remove the metal plate that joins the two binding posts on the speaker first though or you'll short out the amp which isn't good




            Comment

            • Taco
              Junior Member
              • May 2003
              • 12

              #7
              OK got it. Thanks.

              Comment

              • Energeezer
                Senior Member
                • Sep 2002
                • 147

                #8
                I've got a question re bi amp as well.
                How much performance is lost w/o outboard crossovers using bi wire speakers or do you have to have the crossovers before the speakers?
                Second link doen't work for me




                The Future of HT lies in FP SPREAD THE WORD
                The Future of HT lies in FP SPREAD THE WORD

                Comment

                • Danbry39
                  Moderator Emeritus
                  • Sep 2002
                  • 1584

                  #9
                  Sorry about the second link Energeezer. It worked and now we get an access denied. I'll try again, here.

                  If it goes out again, just do a google search on bi-amping and it should be at the top of the list.




                  Keith
                  Keith

                  Comment

                  • Andrew Pratt
                    Moderator Emeritus
                    • Aug 2000
                    • 16507

                    #10
                    How much you loose depends on the crossover. I noticed a nice performance gain with my speakers when I bi amped them with a couple of channels from my HK amps




                    Comment

                    • Energeezer
                      Senior Member
                      • Sep 2002
                      • 147

                      #11
                      Keith
                      Thanks it works now.
                      Here is a link to a site that allows you to shorten links and prevents many broken links.

                      Thought you may find that interesting




                      The Future of HT lies in FP SPREAD THE WORD
                      The Future of HT lies in FP SPREAD THE WORD

                      Comment

                      • Danbry39
                        Moderator Emeritus
                        • Sep 2002
                        • 1584

                        #12
                        Thanks Energeezer,

                        The link is now bookmarked.




                        Keith
                        Keith

                        Comment

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