The Replacement
We very carefully unpacked the replacement drive-unit (seen here) and connected it to the tapered tube transmission line. <i>Without</i> damaging the new dome. Yikes!
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Inside the Giya
With the Vivid G1Giya’s midrange unit removed, we can see a bit of the speaker cabinet’s internal structure.
Itsy-Bitsy Little Hole
See that itsy-bitsy little hole way at the back of the speaker? Properly installing the replacement drive-unit meant lining up that itsy-bitsy little hole with the tapered end of the transmission line and locking it in place with a hex screw. So easy, a caveman could do it.
As Good As...
After several failed attempts, some sweating, and a bit of cursing, we were able to lock the replacement drive-unit into the Giya cabinet. Success! And then we realized we’d forgotten an O-ring…
Careful Measurements
John Atkinson measures the distance from his microphone to the Giya’s midrange drive-unit. For a larger view, visit <a href="http://forum.stereophile.com/photopost/showphoto.php/photo/2218/passwor… Gallery</a>.
Under the Hood
After we lifted the big Vivid Giya onto a rotating platter, JA got under the hood and connected the speaker cables to his test amp. JA <i>loves</i> it when speaker terminals are hidden beneath a speaker. For a larger view, visit <a href="http://forum.stereophile.com/photopost/showphoto.php/photo/2217/passwor… Gallery</a>.
A Little Camera
JA uses a little camera to monitor the rotation of the speaker on the platter. The platter turns at five degree intervals while JA measures impulse response. For a larger view, visit <a href="http://forum.stereophile.com/photopost/showphoto.php/photo/2216/passwor… Gallery</a>.
Positioning the Mic
JA positions his microphone in such a way that any room reflections become insignificant. For a larger view, visit <a href="http://forum.stereophile.com/photopost/showphoto.php/photo/2215/size/bi… Gallery</a>.
The Nearfield Response
JA uses a different mic, set at a much closer proximity to the drive-unit, to capture the side-firing woofer’s nearfield response. For a larger view, visit <a href="http://forum.stereophile.com/photopost/showphoto.php/photo/2214/size/bi… Gallery</a>.
Pseudo-Random Noise
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