Get Free, Friendly, Expert Advice
Call 1-866-244-8796 or email

Designed and Manufactured in Canada Since 1980


AxiomAudio Blog

Outdoor Speaker Placement

Speaker Placement: Unusual Room Layouts and Elevating Speakers

Positioning Floorstanding Speakers

Wall'O'Fame
Greetings fellow Axiom owners...
HG Rosewoods Part 3
Who's Online
1 registered (Kevin1), 123 Guests and 3 Spiders online.
Key: Admin, Global Mod, Mod
Financing
Forum Stats
13295 Members
11 Forums
22826 Topics
403264 Posts

Max Online: 378 @ 02/24/13 04:33 PM
Top Posters
Ken.C 17741
pmbuko 16259
SirQuack 13318
CV 11146
MarkSJohnson 10832
Meanwhile On Facebook

A very fond farewell party last night . . . we miss you Noreen!

Hope everyone's got their summer favourite playlists cued up for the weekend! W...

(y) Love this customer review of the M2s! "the first time listening to my new a...

These LFR1100 speakers in custom Eggshell White are on their way to Taiwan (yes,...

Page 7 of 9 < 1 2 3 4 5 6 7 8 9 >
Topic Options
Rate This Topic
#172151 - 08/28/07 11:14 PM Re: hk 3480 modification: science or wishful heari [Re: RickSean]
pmbuko Offline
shareholder in the making

Registered: 04/02/03
Posts: 16259
Loc: Leesburg, Virginia
Quote:

With that amount of wattage, you would only be listening to the tweeter, as the bass driver would not have enough wattage to hardly move, if move at all.



That statement right there shows that you and your associate have a fundamental misunderstanding of how speakers use power. When speakers are tested for efficiency, the most common method is to feed them 1 Watt of power and to measure the resulting decibel level 1 meter away. The M80s measure at 91dB in an anechoic chamber and 95 dB in a typical room. The tweeter alone is not responsible for those levels.
_________________________
"I wish I had documented more…" said nobody on their death bed, ever.

Top
#172152 - 08/29/07 12:26 AM Re: hk 3480 modification: science or wishful heari [Re: pmbuko]
tomtuttle Offline
axiomite

Registered: 06/20/03
Posts: 8268
Loc: Tacoma
Alright, everybody freeze! I've got a keyboard and I'm not afraid to use it!

Now, fly this thread to Austin RIGHT NOW and nobody gets hurt!
_________________________
bibere usque ad hilaritatem

Top
#172153 - 08/29/07 07:45 AM Re: hk 3480 modification: science or wishful heari [Re: tomtuttle]
Spoiler Offline
aficionado

Registered: 01/03/06
Posts: 680
Loc: South Florida
Dam hijackers! How many times have I told you to keep that pilot door locked!!
_________________________
Epic 80 / SVS PB13 Ultra
Denon 3805 / M2200 Outlaw Monos /
Sammy 55" LED

Top
#172154 - 08/29/07 07:00 PM Re: hk 3480 modification: science or wishful heari [Re: RickSean]
Mojo Offline
connoisseur

Registered: 01/21/07
Posts: 3292
In response to RickSean's last post, I've confirmed that the M80s have no problem producing respectable SPLs with a quarter watt and less right down to 40Hz. See the chart below. The background to the measurements for power is shown here.

RickSean, the arguments therefore that you have posited are null and void. I also want to point out that capacitors don't require any "powering up" as they are passive components. And from what I've witnessed out of my low-cost receiver, Denon is to be commended for their engineering prowess.

So, we are now back to square one.



Top
#172155 - 08/29/07 08:45 PM Re: hk 3480 modification: science or wishful heari [Re: Mojo]
pmbuko Offline
shareholder in the making

Registered: 04/02/03
Posts: 16259
Loc: Leesburg, Virginia
The extent to which you're geeking out about this is something to behold. I love it.
_________________________
"I wish I had documented more…" said nobody on their death bed, ever.

Top
#172156 - 08/29/07 10:29 PM Re: hk 3480 modification: science or wishful heari [Re: pmbuko]
Mojo Offline
connoisseur

Registered: 01/21/07
Posts: 3292
I of course geek out to keep you amused . So here is some more amusement for you.

I have no idea what the minimum power rating for a speaker means. At first I thought it was to ensure adequate dispersion. But my ears told me that couldn't be it and then I checked the off-axis frequency response graphs for the M80 and they were excellent with 1 Watt. If anyone knows, please tell us.

With regard to cone control and precision of movement, I am curious how RickSean confirmed that a higher power amp provides an improvement in this area.

Top
#172157 - 08/29/07 10:41 PM Re: hk 3480 modification: science or wishful heari [Re: Mojo]
SirQuack Offline
shareholder in the making

Registered: 01/29/04
Posts: 13318
Loc: Iowa
As long as I've been researching speakers, most manufacturers websites give a recommended min/max amp rating. I think it is just a recommendation and you might be reading to much into it. Look at the 80's, they say 400w for max power. We all know they can handle amplification that far exceeds 400w. As I've mentioned before, in recent lab tests Axiom when testing the new amp drove a pair of m80's continuous for 2 weeks 24hr/day with 700 watts with peaks exceeding 1100 watts.
_________________________
M80s-VP180-QS8s-EP600-2xEP350 Denon3808 Outlaw7700
M22-OWM22-VP100-Denon2805
Audio Nirvana

Top
#172158 - 08/29/07 10:47 PM Re: hk 3480 modification: science or wishful heari [Re: SirQuack]
Mojo Offline
connoisseur

Registered: 01/21/07
Posts: 3292
Quote:

I think it is just a recommendation and you might be reading to much into it. Look at the 80's, they say 400w for max power.




Max power I can understand. But why a minimum that is clearly far greater than the minimum that I and others experience. A half watt is a far cry from 10 watts.

Top
#172159 - 08/29/07 11:02 PM Re: hk 3480 modification: science or wishful heari [Re: Mojo]
JohnK Offline
shareholder in the making

Registered: 05/11/02
Posts: 10363
Mo, as Randy indicated, those suggestions for amp power aren't very meaningful. I suppose that it could be said that the minimum suggestion is something that the speaker manufacturer believes would be adequate to power his speaker even on peaks in "typical"(whatever that means)situations.
_________________________
-----------------------------------

Enjoy the music, not the equipment.



Top
#172160 - 08/29/07 11:07 PM Re: hk 3480 modification: science or wishful heari [Re: JohnK]
Mojo Offline
connoisseur

Registered: 01/21/07
Posts: 3292
What you're suggesting makes the most sense...sort of. If you're listening to your M80s at an 1/8 watt average, 10W is more than plenty for most material.

Top
Page 7 of 9 < 1 2 3 4 5 6 7 8 9 >



Moderator:  alan, Amie, Andrew, axiomadmin, Brent, Debbie, Ian, Jc 

Home  |  Corporate Info  |  Products  |  Message Board  |  FAQs  |  Warranty  |  Site Map  |  Privacy Statement   |  Contact Us

©2014 Colquhoun Audio Laboratories Limited
All Rights Reserved.