As already posted on another thread, this "monkey" will be trying a Verus out when they become available. ;-)
Chazzbo's concern about rumble transmission into the platter is legitimate and well thought of, but perhaps he's never heard a Teres. Even their belt drive motors are far quieter than those used on most other TT's. That is why Teres, Galibier and Redpoint are able to use non-compliant belts that provide superior torque coupling between motor and platter. Despite this unforgiving coupling there is NO audible rumble on any of these tables. VPI and others use rubber belts to protect their platters from inherently noisy motors. Teres & its cousins don't have to.
Now add the fact that the Verus (and Certus) motors were custom designed and custom built by Chris. Do we think he spent three years designing a NOISIER motor than the off-the-shelf ones he's been buying from Maxon? Somehow I doubt it. Paul and I worked with Chris for nearly a year trouble-shooting the last generation Reference II motor and fine-tuning its controller algorithm. He is very aware of motor speed and noise issues and wouldn't knowingly offer a motor/drive system with audible rumble.
Chazzbo's concern is legitimate, but I'm hopeful Chris has addressed it with his usual good engineering. I'll be astonished (and very disappointed) if rumble is a problem.
***
Like Pauly, I'm not sure there's a huge distinction between idler wheels and a large diameter O-ring for platter/motor coupling. Either one can have or develop flat spots, cracks or other flaws that would be audible. But O-rings are readily obtainable. Getting well polished rings with no surface irregularities will be important, but fairly simple. McMaster Carr probably has them.
Given the enormous and genuine enthusiasm from idler wheel folks like Cmo and a host of others, despite the motor problems some Garrards are famous for, why wouldn't we want to hear a similar drive technology implemented with a state of the art motor? I don't understand the dismissive reaction.
***
My own concern (in advance of hearing) is that the elasticity of the O-ring material might still allow some slewing on bigger transients. Paul and I hate rubbery sounding transients, we don't even like rubber feet beneath our motor or table, so we'll be listening for that. If we decide to keep the Verus I'll probably experiment with O-rings of different durometers and materials. Performance differences would probably be platter dependent, but I've little doubt they'd be audible.
My .01,
Doug
Chazzbo's concern about rumble transmission into the platter is legitimate and well thought of, but perhaps he's never heard a Teres. Even their belt drive motors are far quieter than those used on most other TT's. That is why Teres, Galibier and Redpoint are able to use non-compliant belts that provide superior torque coupling between motor and platter. Despite this unforgiving coupling there is NO audible rumble on any of these tables. VPI and others use rubber belts to protect their platters from inherently noisy motors. Teres & its cousins don't have to.
Now add the fact that the Verus (and Certus) motors were custom designed and custom built by Chris. Do we think he spent three years designing a NOISIER motor than the off-the-shelf ones he's been buying from Maxon? Somehow I doubt it. Paul and I worked with Chris for nearly a year trouble-shooting the last generation Reference II motor and fine-tuning its controller algorithm. He is very aware of motor speed and noise issues and wouldn't knowingly offer a motor/drive system with audible rumble.
Chazzbo's concern is legitimate, but I'm hopeful Chris has addressed it with his usual good engineering. I'll be astonished (and very disappointed) if rumble is a problem.
***
Like Pauly, I'm not sure there's a huge distinction between idler wheels and a large diameter O-ring for platter/motor coupling. Either one can have or develop flat spots, cracks or other flaws that would be audible. But O-rings are readily obtainable. Getting well polished rings with no surface irregularities will be important, but fairly simple. McMaster Carr probably has them.
Given the enormous and genuine enthusiasm from idler wheel folks like Cmo and a host of others, despite the motor problems some Garrards are famous for, why wouldn't we want to hear a similar drive technology implemented with a state of the art motor? I don't understand the dismissive reaction.
***
My own concern (in advance of hearing) is that the elasticity of the O-ring material might still allow some slewing on bigger transients. Paul and I hate rubbery sounding transients, we don't even like rubber feet beneath our motor or table, so we'll be listening for that. If we decide to keep the Verus I'll probably experiment with O-rings of different durometers and materials. Performance differences would probably be platter dependent, but I've little doubt they'd be audible.
My .01,
Doug