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Is this possible?

I work as a leasing manager at a very upscale apartment complex and we are creating a home theater room with a 10 foot drop-down projection screen and seven in-ceiling speakers with two in-wall subwoofers. The installers came today to install the amps which turned out to be a Denon AVR-1082 which has 7 channels at 150 watts into 8 ohms. The installer said that the subs were not self powered and he would power them from the receiver. I can only assume that he will splice the rear channels and power the rear 4 speakers off of 2 channles and use the other 2 channels of surround amplification to power the subs. Doesn't this sound like it will create havok on the receiver with the ohm loads? This couldn't possibly result in 7 channel surround more like 5 channel with 7 speakers right? Does anyone know if there is a setting on the 1082 that could have it power woofers or is this guy gonna try and power subs off ofa surround signal and if there is no crossover won't that damage the subs? Is there some kind of setting that will allow those extra channels to only send LFE output? I think this installer is really shady since he claimed that the 1082 cost 2 grand but I know it is discontinued and the MSRP on it used to bu under $1000. Can anyone verify if this is possible or if we are being ripped off.
bmw328iproject
sogood51
2,157 posts
 
M.s.r.p. on that receiver is $999, It can be had for around $500 if you do a web search. The 150 watts is not full bandwidth..it is rated 110 watts all channels 20hz-20khz from the info I find on the web. It does have 5 user reviews listed at audioreview.com. He could drive the passive subs with two of the channels as he stated I would think, the info I found on the web for this amp states that amp channels are assignable.

Dave
slappy
903 posts
 
Its only a six channel reciever.

There is one for sale here on the 'gon

100WPC x 6.
slappy
903 posts
 
Actually i think Sogood is right.

I guess it depends on the model of the Denon

If it is an AVR-1082, then it is 7 x 110w
If it is an AVR-1802, which i thought you were referring to, then it is 90-100W x 6.

Either way i still think you are getting ripped off.

You dont want the rear channels powering the in-wall subwoofers, you should really get seperate amplifiers for that.

When did they discontinue the 1083?
chances are this is used, and certainly it is not a 2k reciever.
viggen
838 posts
 
The installer is losing a single channel somewhere since this is a 6.1 receiver. That means there should be 6 dedicated speakers, 3 in the front and 3 in the rear. By splicing the rear channels, you only have 2 in the rear. This isn't a big deal, however, since no one will notice that channel anyways (I think).

Can't answer you regarding the resistance problem. That depends on the qualify of the amp and the total amount of resistance of all the speakers added up.
slappy
903 posts
 
Does this installer have a bunch of speakers in the back of a white van?

HAHAHAHAHA

There is no real 7.1 decoding, the two rear channels are each a cross of the rear and the surround on the corrosponding side. Its kinda like how pro logic gets multiple channels from 2 channels. Its all matrixed.

either way i would make sure of what you are getting, and for crying out loud, do not let him install a reciever that is no longer made, and that MSRPd for under 1k when he is saying it is a 2k reciever.
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