Or is the GPA web site really buggy?
I have been having all kinds of weird problems getting there. Inconsistent listing of the literature (sometimes it's there, sometimes not, sometimes incomplete, etc.), and then just site unavailable...like tonight for example:

Tracing route to greatplainsaudio.com [50.59.140.8] over a maximum of 30 hops:

1 <1 ms <1 ms <1 ms Wireless_Broadband_Router.home [xxx.xxx.xxx.xxx]
2 6 ms 6 ms 7 ms L100.xxxxxx-VFTTP-27.verizon-gni.net [xxx.xxx.xxx.xxx]
3 6 ms 7 ms 7 ms G0-4-1-4.xxxxxx-LCR-22.verizon-gni.net [130.81.146.112]
4 11 ms 11 ms 11 ms P14-0-0.xxxxxx-LCR-02.verizon-gni.net [130.81.27.96]
5 10 ms 12 ms 12 ms P15-0-0.xxxxxx-LCR-01.verizon-gni.net [130.81.27.64]
6 13 ms 11 ms 12 ms so-15-0-0-0.RES-BB-RTR1.verizon-gni.net [130.81.28.248]
7 11 ms 12 ms 12 ms 0.ae1.BR1.IAD8.ALTER.NET [152.63.32.141]
8 11 ms 14 ms 12 ms te2-3.ar6.DCA3.gblx.net [64.215.195.113]
9 11 ms 14 ms 12 ms po2-20G.ar3.DCA3.gblx.net [67.16.133.89]
10 11 ms 11 ms 12 ms 162.97.118.122
11 92 ms 91 ms 91 ms roc1-ar3-xe-2-0-0-0.us.twtelecom.net [66.192.253.110]
12 * * * Request timed out.
13 * * * Request timed out.

Maybe their hosting service just sucks...