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Out of phase breaking in, Anywone ever hear of it?

This is a technique I have used to break in speakers in the past.

Basically you place the speakers face to face with the drivers seperated by a small amount, maybe 2 inches or less between drivers. They you connect one speaker out of phase, negative wire to positive terminal. Finally you feed a mono signal, to the amplifier and play the sound at moderate levels.

The outcome of the process produces only a mild sound output since the out of phase signals largely cancel each other out. The cone range of motion is relatively large, and the speakers compliance is quickly opened up.

Care must be taken not to use this technique too long, you don't want to damage the speakers, just open the range up.

This has worked magic for me, shortening break in time dramatically.

Anyone else have any experience with this technique?
Thoughts would be appreciated.

Thank you,
Ron
starsandseas

Showing 1 response by starsandseas

starsandseas OP
37 posts
 
Thanks for the reply.

It doesn't look like many folks are familiar with this technique. You have made very good points about finding the appropriate volume level to do this with.

In my experience under normal conditions many speakers never break in properly. I have found many "used" speakers that I have purchased were not broken in at all.

As an example I once pruchased a pair of Klipsch Heresey's from a professional video recording studio. They carried them around for the audio portion of their demos. The seller said that they were "too much" for their application and were going for something smaller. After using this breaking in technique the bass really opened up. I would say the low end increased by a third in apparent volume and depth. I wonder what the seller would have thought hearing the vastly improved in performance the Heresys were really capable of.

Thank you,
Ron

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