bridging the rmb-1077

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  • Frankster72
    Member
    • Feb 2008
    • 54
    #1

    bridging the rmb-1077

    hi,

    I just bought the rmb-1077 and operate it at b&w XT4 speakers. It delivers a nice warm sound.

    Actually I've heard the XT4 need a pretty stable amp, so I thought about bridging. I just use 5 of 7 channels offert by the 1077.

    Ususally you need an signal inverterter to bridge an amp (in case it is not bould in). but I read an article that described some kind of pseudo bridging not unsing an inverter.

    therefor you need to connect the speaker wire to two of the red outputs, and shorten one chinch input of the amp. the ofther input goes with the signal....

    I tried this with the center 1 and 2 channels of the 1077. it worked fine - no distortion, just the amplication was a bit less when working unbridged. but I didn't do any sound comparisons...

    what do you recommend. do you think pseudo bridging can make a different in sound?

    best regards,
    frank
    Tags: None
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    • MacUser
      Junior Member
      • Aug 2006
      • 19
      #2
      Bridging? 8O

      I'd go for bi-amping ...

      a) get pair of y-intercon-cables to drive 2 amp modules at a time with 1 pre-out (in each case, left and right)

      b) get a second pair of your speaker cables

      c) remove the bi-wire bridges from your speakers, connect the speaker cables individually and enjoy!

      A friend of mine is bi-amping his B&W 802N with a 1077 ... the sound is pretty amazing ... ;x(
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        • Frankster72
          Member
          • Feb 2008
          • 54
          #3
          oh, the xt series does not support bi amping :-)
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            • MacUser
              Junior Member
              • Aug 2006
              • 19
              #4
              OK!! :roll:

              then go and get a pair of 802's ... :B
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                • Frankster72
                  Member
                  • Feb 2008
                  • 54
                  #5
                  nice guess
                  but please lets talk here about bridging a rotel class D amp - ok!
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                    • hifiguymi
                      Super Senior Member
                      • Mar 2007
                      • 1532
                      #6
                      You can not bridge the RMB-1077. It is not desinged to do that.

                      Eric
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                        • Frankster72
                          Member
                          • Feb 2008
                          • 54
                          #7
                          sure you can, I already did it as described....

                          no damage to the 1077
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                            • Frankster72
                              Member
                              • Feb 2008
                              • 54
                              #8
                              so, did my final test with the xt4 attached in bridging mode.

                              first - it works fine - but sound quality did not improve. nore it was even worse.... so no good idea of doing it.
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                                • imbeaujp
                                  Member
                                  • Nov 2007
                                  • 79
                                  #9
                                  If you can not ear any improvment, then do not do it.
                                  Jean-Pierre Imbeau

                                  ROTEL: RSP-1098|RT-1080|RCD-1072|RDV-1060|RLC-1040|RB-1080x2|RMB-1075
                                  PIONEER: ELITE PRO-940HD|BDP-HD1|inno
                                  YAMAHA: NS-1000|NS-1000M|CA-1010|CT-1000|TC-1000|YP-1000
                                  PEARLESS: XXLS-12x4|BEHRINGER DSP-1124
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                                    • chrispy35
                                      Senior Member
                                      • Feb 2004
                                      • 198
                                      #10
                                      Originally posted by Frankster72
                                      Ususally you need an signal inverterter to bridge an amp (in case it is not bould in). but I read an article that described some kind of pseudo bridging not unsing an inverter.
                                      Frank, can you put up a link to this article? Enquiring minds want to know...

                                      Chris P.
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                                        • Frankster72
                                          Member
                                          • Feb 2008
                                          • 54
                                          #11
                                          the artice is in german, but I can try to fnd the link again if you are interested. a friend of me is into amp electronics and said usually this is a good way of improving sound quality
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