The past year I've been working two days a week, parttime bench repairing AV receivers and systems at a local warranty and high end audio house. Times being what they are, I'm grateful for the work.

it ain't worth the risk in $$ IMHO to press one of these AV receivers into road duty service as a live performance for music in local venues.

For one thing, the specs are rather tight, typical idle currents for the 7 power amps inside these things being as low as 1.5mV.

Plenty of other reasons not to try this one, some would include subjecting the typical internal CPU to the stresses of "onlocation" power and the like, speaker hookup to typical twiston or banana jack config, which in the heat of live performance setup can easily result in a frayed wire short that will take out an expensive power amp or two, those typical plastic RCA inputs that are not securely fastened to the panel but merely soldered to the PC board, they are not designed for that type of duty, sometimes I wonder if they were designed for the duty intended at home from the number of failures encountered, then there is the complexity of the system and setup itself -- quite often we end up declaring an NPF or No Problem Found after an hour or more of testing every function and then there's the fault that is very common -- CPU/DSP gets in a confused state or the consumer gets confused when programming or using it and the thing appears to be broken. Sometimes a Reset involves more than just performing the Secret Button Code, meaning going inside and knowing what to power down and how and when.

Myself, if faced between the choice between using a typical >$1000.00 7.1 ch AV Receiver or a ~$300-400.00 Power Amp designed for PA use, its a no-brainer.

My bench charges are at $85.00/HR and frankly we are workin' cheap as it is.

Typical parts and labor charge to rebuild just one of the internal power amps inside the typical mid to highend AV receiver can come to quite a bit of money, often MORE than the cost of said PA Power Amp in entirety.


--Mac

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