Hi John,
We rate the Gemini 2 to hold up to 150 pounds (but that is a conservative rating). With the load weight you are discussing (50 - 80 pounds) the Gemini 2 will have a resonant frequency of approximately 4 to 7 hz.
Another issue that is also quite important is that the "top half" of the Gemini is a Big Rock platform (the Gemini combines an Air Mass and Big Rock into a single platform). The Big Rock is what is in direct contact with your component. Because the Big Rock is designed to be a high, mass high absorption device it has the ability to absorb unwanted vibration directly out of the component and convert the destructive mechanical vibration into benign thermal energy (heat). The energy trapped within the component is resonance that is a result of air-borne vibration sourced directly from the speakers as well as internally-generated vibration (motors, transformers and cooling fans).
We strongly recommend that you avoid using materials that resonate or ring as a support for components as any resonance or ringing will impart those qualities on the signal flowing through the component.
Please let me know if you have any other questions.
Best Regards,
Barry
Barry Kohan
President
Bright Star Audio
We rate the Gemini 2 to hold up to 150 pounds (but that is a conservative rating). With the load weight you are discussing (50 - 80 pounds) the Gemini 2 will have a resonant frequency of approximately 4 to 7 hz.
Another issue that is also quite important is that the "top half" of the Gemini is a Big Rock platform (the Gemini combines an Air Mass and Big Rock into a single platform). The Big Rock is what is in direct contact with your component. Because the Big Rock is designed to be a high, mass high absorption device it has the ability to absorb unwanted vibration directly out of the component and convert the destructive mechanical vibration into benign thermal energy (heat). The energy trapped within the component is resonance that is a result of air-borne vibration sourced directly from the speakers as well as internally-generated vibration (motors, transformers and cooling fans).
We strongly recommend that you avoid using materials that resonate or ring as a support for components as any resonance or ringing will impart those qualities on the signal flowing through the component.
Please let me know if you have any other questions.
Best Regards,
Barry
Barry Kohan
President
Bright Star Audio