Axiom Home Page Forums General Discussion Advice from Axiom Owners Warm up M80ti Speaker?

No, I've never wondered that.

So, if you know, please tell us.

LOL!!

The Rat.

I'm with you Wid on this one, as well as Alan and Ian at Axiom, speakers don't break in, it is all how your brain perceives the sound over time. 20+ years of NRC testing has proved that, and I'm going to side with the speaker manufacturer, and my personal opinion

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How to warm up the speakers?

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Hug them. Body heat - the buddy system. Don't let your wife catch you, though.

Bren R.

To answer two questions:

Jet engines are often given a Green Run, and Axioms may be given a resistor.

Hey Joseph, don't worry about all this "break-in" argument.. I posted something similar with yours here when I first got my M60s and got all kinds of attacks from the oponents of "break in" concept... However, I trust my ears and my own experience, and to tell you the truth, YES, I believe that my M60 sound much better now than the first day I got them. So is the case with at least one other audio equipment i got (my Rotel RCD-1072 cd player).

I'd say, in general, don't worry about break in.

However, let's just consider the notion of environmental extremes for a second. IF the speakers have been constantly at say <50 degrees F during their multi-day shipment phase ("cold" airplanes and trucks and warehouses and such), and you then put them immediately into a >70 degree room, isn't it possible that there could be some change in the way the drivers and enclosure behave until they become acclimated to the new temperature and humidity?

Now, whether there is an audible difference or risk, that's another story

OK……Clarification required here……

I do not believe or disbelieve in SQ differences regarding the whole speaker break in dispute. Quite frankly, I couldn’t care less.

I am suggesting to play them at moderate levels for a little while (don’t have a clue how long, but would suggest ½ hour), for mechanical considerations only. NOT FOR SQ REASONS.

Turbines are not actually broke in per say, but warmed in stages to get them through their respective critical RPM stages. Each turbine will have a particular RPM range in which they experience vibration excessive to normal operation. If they are held in the critical stage too long, catastrophic failure will be imminent. Steam turbines in particular. Gas turbines (jets) are less finicky, but experience similar conditions as steam turbines. I’ve over hauled and operated several of each. After a major over haul (like a rotor change out), they are brought up to operating speed and temp slowly. They are methodically monitored, observing and analyzing vibration data, axial movement, bearing and oil temp and auxiliary system parameters.

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I am suggesting to play them at moderate levels for a little while (don’t have a clue how long, but would suggest ½ hour), for mechanical considerations only.

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A good way to err on the side of caution. Allows them to adjust to the temperature, etc of your home. Ian and Alan have both stated that it only takes a second or two for everything to "break in" but I'd think at worst, it would be overly prudent to not peg the volume control within seconds of them coming out of the back of a dark brown UPS truck in the hot Arizona sun.

Bren R.

Good point Bren, you definately would want them to adjust to the room temperatures before cranking them up. I know a guy that ordered some Klipsch speakers once during the middle of Winter. They had been out in the delivery truck on a day when it was 40 below wind chills. He immediately hooked them up and cranked his Rotel setup. If I recall, he had to replace a few of the drivers.

Good show, Mike!

You hit it just right on the gas turbine(jets)tests! Certainly in the case of the good ol' F107 and the other one, five numbers higher.

Couldn't have said it better myself!!

I could make some additional comments on what I thought about my last three Axioms at start-up, but don't want to put my lack of credability back on the line once again!!

Again; Good Show!!
Rich.