Re: Denon AVR 3808 CI with Axiom M80? (impedance)
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Joined: Jun 2008
Posts: 135
veteran
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veteran
Joined: Jun 2008
Posts: 135 |
Hey guys, what about mixed ohms for example can you run the 4 Ohm fronts along with 8 Ohm center and backs or does that screw with the avr (in my case the Denon 3808)?
"Real Gun Control Is Hitting What You Aim At" - can't remember
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Re: Denon AVR 3808 CI with Axiom M80? (impedance)
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Joined: May 2003
Posts: 18,044
shareholder in the making
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shareholder in the making
Joined: May 2003
Posts: 18,044 |
Not at all. The receiver doesn't care.
I am the Doctor, and THIS... is my SPOON!
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Re: Denon AVR 3808 CI with Axiom M80? (impedance)
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Joined: May 2002
Posts: 10,654
shareholder in the making
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shareholder in the making
Joined: May 2002
Posts: 10,654 |
Yeah Bobby, the receiver has no idea what the individual impedances of the speakers which it drives are; its job is to supply enough total voltage and current for the power needed at a particular moment, regardless of what the impedances happen to be.
-----------------------------------
Enjoy the music, not the equipment.
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Re: Denon AVR 3808 CI with Axiom M80? (impedance)
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Joined: Jul 2008
Posts: 10
frequent flier
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OP
frequent flier
Joined: Jul 2008
Posts: 10 |
Hi Guys, Reading all the feedback with greath interest. You got me nearly convinced to go for the M80's instead of the M60's Before I throw my money at it I've got two subsequent questions: 1- My 3808 sits in a rack together with all my other stuff. It is open at all four sides, but the headroom between de top of the 3808 and the next shelf is approx 40 mm. Will that be enough, what do you guys have? (Rationel here is that driving 4 ohm speakers would increase the Denon's operating temp - no doubt, but to what extend.. or is it marginal ..?) 2 - Not a matter of money but merely space (footprint) - how big is the difference between the M80's and M60's in terms of performance and sound field. Is it really noticeble? I know it is subjective but still .. Again, many thanks for any ser.... (yes I did read the forum .. ) Fanon
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Re: Denon AVR 3808 CI with Axiom M80? (impedance)
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Joined: Apr 2007
Posts: 4,877
connoisseur
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connoisseur
Joined: Apr 2007
Posts: 4,877 |
40mm does not sound like a lot since the majority of the vent slots are on the top of the 3808.
I can tell you that my denon 3808 does not get that hot, only slightly warm to the touch, when driving the m80's throughout a movie or a cd... but I have it on the top shelf that is open on all sides.
I would suggest following whatever instructions there are in the user manual for clearance regardless of what the impedance is of your speakers.
-David
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Re: Denon AVR 3808 CI with Axiom M80? (impedance)
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Joined: Jul 2008
Posts: 10
frequent flier
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OP
frequent flier
Joined: Jul 2008
Posts: 10 |
It doesn't really say other then "for proper heat dispersal, do not install this unit in a confined space, such as a bookcase or similar enclosure" No hint of measures. My audio rack is not exactly what you would call a closed space, but then again. Think I got too much audio stuff in my selfmade tower .. am a bit crushed for space (can upload a jpeg here so I can show off ...uhm perhaps not a good idea after what I ve seen in terms of excellent HT setups at your side of the pond. European housing is a wee bit smaller, many folks on a sqare mile ..
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Re: Denon AVR 3808 CI with Axiom M80? (impedance)
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Joined: Apr 2007
Posts: 4,877
connoisseur
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connoisseur
Joined: Apr 2007
Posts: 4,877 |
To put a pic in this thread just use photobucket and then add the image into this thread using the insert image URL from the full reply screen.
If it is open on the sides then it might be ok. Maybe someone else can chime in here.
You could always purchase an extended warranty for your receiver through denon (surely they offer that) if you are worried about heat build up possibly reducing the life of the AVR.
-David
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Re: Denon AVR 3808 CI with Axiom M80? (impedance)
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Joined: Oct 2006
Posts: 6,955
axiomite
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axiomite
Joined: Oct 2006
Posts: 6,955 |
Denon's don't seem to run too hot, but I would give any large piece of electronics more breathing room than you are describing.
Their warranty department has already probably intercepted this thread and made a note on your file. OK kidding..... I hope.
With great power comes Awesome irresponsibility.
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Re: Denon AVR 3808 CI with Axiom M80? (impedance)
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Joined: Apr 2008
Posts: 274
local
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local
Joined: Apr 2008
Posts: 274 |
Reading all the feedback with greath interest. You got me nearly convinced to go for the M80's instead of the M60's When I finally get mine, I plan on M80's in part because I don't want years of nagging doubt if I get something smaller. 2 - Not a matter of money but merely space (footprint) Is your space really that constrained? The M80 is the same width as the M60, but 2" deeper. I've read a number of claims that the rear ports need to breath -- if you plan on backing them right up to a wall you may have suboptimal performance.
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Re: Denon AVR 3808 CI with Axiom M80? (impedance)
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Joined: Jul 2008
Posts: 10
frequent flier
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OP
frequent flier
Joined: Jul 2008
Posts: 10 |
space constraints ? yes a bit though as the right front starts blocking the fire place ... yes yes get rid of the fire place, I hear it saying .. Interesting remark you make about years of nagging doubt - rings a bell ..I had something similar - bought initial a Pioneer 43" plasma as the 50" was "too big ?! " took 13 months, now there hangs a 50" Kuro
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