Sequence Three – Grand Reference Construction Update3!

September 23, 2012 Posted by gornir

 

Here’s a small update of the build progress!

The enclosure build is progressing as planned and the first box is finished. Some minor adjustments remain, but the build slowly beginning to nearing its final stage.

The next series of measurements I will publish is for the 10C772510KAP woofer, thereafter followed by DEQX measurements and some listening evaluation of the drivers capabilities.

 

 

All walls are covered with bitumen pads and some walls are covered with egg shaped foam and the enclosure is filled with sheep wool.

Two flared 70mm bass-reflex ports are housed in the bottom of the enclosure.

 

 

At the first look at the loudspeakers they look black, but they are actually dark grey. In real life they look a bit darker than the pictures.

 

 

Note the replacement baffle system and the separate tweeter enclosure than can be slide back and forth in order to fine tune the “relative acoustic center off-set” between the tweeter and the mid-range.

The speaker terminals are prepared for both active and passive cross-over use.

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