My Home Theatre setup is powered by a Marantz SR-18 with Definitive Technologies BP2000's (L/R), CLR 2500 (Ctr), BP2006's (LS/RS), and the subwoofers are the one's built into the BP2000's. The other night, while listening to BT's "This Binary Universe" DVD in DTS mode at my usual volume level (Pretty consistent 100 dB level with peaks about 110 dB), the receiver started going into protection mode repeatedly. Protection mode mutes all channels for several seconds. I could only play the disc if I dropped the volume levels to the 80's. I started tinkering with the channel levels and noticed that the RS was significantly lower in level now than it had been before. I recalibrated the channels and resumed playback but it started having problems again as soon as I raised the levels. I recalibrated again and dropped the level of the RS to as low as it could go and started play again. This time I was able to play at the normal level (100-110 dB). I though I had found the cause of the problem and assumed it had to be the RS channel on the SR-18. The next day, I started thinking about the problem again, and decided to test the RS speaker. I recalibrated the channels again to normal and sure enough, protection mode clicked in again. Next, I disconnected the RS speaker. Doing so allowed me to play at full level. This made me think that it was the speaker and not the SR-18. To further test my theory, I swapped the surround speakers (LR was now RS and RS was now LS) and with the normal levels, protection mode engaged if that speaker was connected. So, I figured I had confirmed that the speaker was the problem. I disconnected the LS (Originally RS) and was able to play the DVD at my wonderful 100-110 dB levels. Unfortunately, after recalibrating the levels and resuming playback, protection mode again engaged. This should not have happened since the "Damaged" speaker was no longer connected. Testing confirmed that the previously healthy surround speaker now had the same problem that it's brother had. Now, with both surrounds not plugged in, the system plays at normal levels. I relocated the damaged surrounds and plugged them into my computer system and they both play, but at seemingly lower levels than before. Also, there is an odor that comes from them while playing.
I'm thinking that both speakers were damaged by a problem with the RS channel on the SR-18 and that both BP2006's and the SR-18 have to be repaired. Anyone else care to give me their $0.02?
I'm thinking that both speakers were damaged by a problem with the RS channel on the SR-18 and that both BP2006's and the SR-18 have to be repaired. Anyone else care to give me their $0.02?