I have a Denon AVR-2307 surround receiver with Mirage Omnisat V2 Series floorstanding front and Centre speakers, plus Niles HD6 in wall surround speakers.
For the second time, the receiver has gone into protection circuit mode. The first time this happened the resistors and diodes were replaced in the front left and centre output stages under warranty.
Since this has happened for a second time I have been investigating and now wonder whether I have an impedance mismatch issue with the receiver and speakers.
The receiver is rated front A,B at 100w + 100w (8 ohms, 20hz-20khz), centre is the same. The Surround is the same.
According to the manual the impedance on all the speakers should be in the 6 to 16 ohms range.
The Mirage front and centre speakers are rated at 175 watts and their impedance is 8 ohms nominal and 4 ohm min. The Niles surround speakers are rated at 10 to 125 watts per channel and their nominal impedance is 6 ohms.
Both times when the receiver has gone into protection circuit mode, it has been whilst playing music DVD's at high volume, but not extreme. So, I am wondering if the amp has been pushing too much power over the period and it has clipped and hence damaged the circuitry? Does anyone know if this might be the case?
My second question relates to what comback would I have on the authorised Denon dealer who sold me and installed the entire package in the first place?
Hope someone can help.
Thanks,
For the second time, the receiver has gone into protection circuit mode. The first time this happened the resistors and diodes were replaced in the front left and centre output stages under warranty.
Since this has happened for a second time I have been investigating and now wonder whether I have an impedance mismatch issue with the receiver and speakers.
The receiver is rated front A,B at 100w + 100w (8 ohms, 20hz-20khz), centre is the same. The Surround is the same.
According to the manual the impedance on all the speakers should be in the 6 to 16 ohms range.
The Mirage front and centre speakers are rated at 175 watts and their impedance is 8 ohms nominal and 4 ohm min. The Niles surround speakers are rated at 10 to 125 watts per channel and their nominal impedance is 6 ohms.
Both times when the receiver has gone into protection circuit mode, it has been whilst playing music DVD's at high volume, but not extreme. So, I am wondering if the amp has been pushing too much power over the period and it has clipped and hence damaged the circuitry? Does anyone know if this might be the case?
My second question relates to what comback would I have on the authorised Denon dealer who sold me and installed the entire package in the first place?
Hope someone can help.
Thanks,
