If you can deal with Chicom stuff, the Sirui AM-223 compact tripod is pretty sturdy. They did a decent job with their intellectual property theft on this one.
A high-power spotting scope stand would also work.
And remember, the dB scale is logarithmic. That means a 3dB difference is equal to double (or half) the sound pressure level.
In English - a 3dB reduction in sound pressure level is half as loud.