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Re: B&K Receiver for M80's
MarkSJohnson #274516 10/09/09 01:09 AM
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I don't like being attacked by transients.

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Re: B&K Receiver for M80's
tomtuttle #274530 10/09/09 03:12 AM
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Could be worse....a transcientologist.


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Re: B&K Receiver for M80's
Adrian #274537 10/09/09 05:55 AM
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Well there doesn't seem to be consensus here. Having read this forum for several months I am not surprised. But I am nowhere closer to a decision on the receiver. Let's go another direction. Since M60's are another possibility, what are your opinions with respect to its performance vis-a-vis the M80's at moderate levels (around 85db) for listening to classical music? I suppose I would miss some of the lower bass. Again I am not interested in a sub...yet.

Re: B&K Receiver for M80's
Captain4105 #274540 10/09/09 06:09 AM
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I am using the AVR507 to power an epic 80 7.1 system and have been very happy with it. No problems driving all those speakers for movies. Did have it shut off with thermal shutdown once when my dad decided he wanted to listen to music in the garage, which is on the other side of the house...

Not enough heatsinking in one little box to really sustain those kind of levels for any long period of time but i dont think there's any reciever that could. The quality of this reciever is pretty much head and shoulders above anything "new" you can get for that price. That was the case when we got it a few years ago for some $1800 bucks or something

Last edited by Haoleb; 10/09/09 06:11 AM.
Re: B&K Receiver for M80's
Captain4105 #274555 10/09/09 02:24 PM
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Hi Captain,

Did we get any idea of your room dimensions (length, width, height) and how loud you like to listen? My own living room is about 2200 cu. ft (19 x 13 x 9 ft) and when I listen to classical or opera, I sometimes like orchestral peaks to hit 96 dB to 100 dB SPL (C weighting) where I'm sitting. The latter can be between 9 ft and 12 feet back. I have M80s as well as M22s, either pair of which I can run with an EP500 subwoofer.

The M80s on their own have wonderfully deep bass that goes deeper and there's greater output than the M60s. I'd call the bass from the M60s "very good". I would not say the M80s are more detailed than the M60s, however the 80s are a bit smoother through the midrange than the 60s.

Actually, the M22s have a little more detail than the M80s but we are talking nuances here--the difference is only audible with immediate A/B comparisons, which my system has. Conversely, the M22s can sound a little harder on a poor recording than the M80s; e.g. a recording that has exaggerated or EQ'd mids and treble.

You don't "need" the B&K's power output unless your room is much larger than mine and you listen at levels louder than those quoted above. Some of my Axiom colleagues listen to rock at what I call "deafening" levels--well over 100 dB SPL, in which case you do want very large amplifiers.

Regards,
Alan


Alan Lofft,
Axiom Resident Expert (Retired)
Re: B&K Receiver for M80's
alan #274557 10/09/09 02:55 PM
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 Originally Posted By: alan
Hi Captain,

Did we get any idea of your room dimensions (length, width, height) and how loud you like to listen? My own living room is about 2200 cu. ft (19 x 13 x 9 ft) and when I listen to classical or opera, I sometimes like orchestral peaks to hit 96 dB to 100 dB SPL (C weighting) where I'm sitting. The latter can be between 9 ft and 12 feet back.

Distance is certainly a key factor that is often overlooked when recommending 'receiver only'.
Our main floor listening position is about 14' from the speakers and on occasion, if one is listening to music while in the kitchen, over 22' away, sufficient power is a necessary requirement that cannot be fulfilled by a receiver.


"Those who preach the myths of audio are ignorant of truth."
Re: B&K Receiver for M80's
chesseroo #274598 10/09/09 07:55 PM
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My own testing of the M22/M60/M80s had the M22s most detailed/less bass, the M60 did it all very well and the M80s more detailed/open sounding with the best bass. They do it all very well at all volume levels. I found the M60s to sound very similar to the M80s at the SPL you are asking about Captain. The M80s have better detail at lower volume levels.


Jason
M80 v2
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Re: B&K Receiver for M80's
jakewash #274636 10/10/09 05:58 AM
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Thanks to all. My listening area is about 2000 cu ft with a ceiling that goes from 8' and slope upward to about 14'. The speakers will be aligned across the wall with the ceiling that slopes. Not ideal but the only placement that is logical. I listen at moderate levels about 80 to 85 db, sit about 10' from the speakers. I do have an older sub from "Speakerlab" that goes down to about 25Hz and is driven by a separate external amp. Just as an aside I found a pair of M80v2's for $800 (without shipping) online. they are in Beech but I prefer Boston Cherry. That has been one of the hold-ups for me in fully considering it as well as the need to acquire a receiver. I do however have an early 1990's Denon receiver @ 55watts per channel. Would that work for the M80's?

Re: B&K Receiver for M80's
Captain4105 #274645 10/10/09 08:26 AM
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Sure, Lee; it'll work to the extent that a peak doesn't exceed the capability of the Denon(presumably a bit over 55 watts). The M80s would use about 1 watt for an 86dB level at about 10', so a brief peak on the order of 103-104dB would be accommodated.


-----------------------------------

Enjoy the music, not the equipment.


Re: B&K Receiver for M80's
JohnK #274997 10/14/09 07:27 PM
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If it is an early '90s Denon you can't assume the 55 watts can be reached before clipping occurs. To beat the gravetop of this old horse: My 105 rated AVR 3300 starts to clip at 84 watts. It is a 2001 model.

Just saying, if based on what John lays out you think you will often run over the mid-80s db then keep the effect of clipping in mind when you judge the sound of the M80s.


Panny 3000 PJ, 118" Carada, Denon 3300, PS3, Axiom QS8, PSB 5T, B&W sub, levitating speaker wire
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