Part time Audiophile Axpona 2019 report

[Elliot G.]

https://parttimeaudiophile.com/2019/04/27/ch-precision-goebel-and-techdas-axpona-2019/

 

[Ron Resnick]

A wonderful report by Lee! Congratulations to Oliver and Elliot!

 

[Lee]

A wonderful report by Lee! Congratulations to Oliver and Elliot!

Thanks Ron.

 

[Mobiusman]

Ron,

I am curious about your Bergmann ODIN arn and its ability to isolate vibrations.

 

[Ron Resnick]

Ron,

I am curious about your Bergmann ODIN arn and its ability to isolate vibrations.

Vibrations from where?

 

[Mobiusman]

Vibrations from where?

Thanks for responding so fast. I am sorry for being vague. I am concerned about both airborne and physical vibrations since it is an air bearing and had real problems with my Rockport Sirius tonearm on both fronts.

 

[Ron Resnick]

Thanks for responding so fast. I am sorry for being vague. I am concerned about both airborne and physical vibrations since it is an air bearing and had real problems with my Rockport Sirius tonearm on both fronts.

The side walls and adjacent rooms and asymmetrical ceiling soffits make my listening space very problematic, but I have the luxury of locating the source components and the preamplifiers in an adjacent room separated from the listening room. The area where the components will be located is protected by a 4 foot dividing wall.

Also I will be able to close an acoustic curtain over the opening between the listening room and the adjacent equipment room. So I think very little acoustic vibration from the speakers will find its way to the turntable.

Also the speakers in the listening room and the front-end components in the adjacent equipment room all are sitting ultimately on concrete slab. And the turntable will be resting on David’s Nothing Stand, the weight of which could unsettle an Aegis Cruiser. So I think physical vibrations are unlikely to be an issue.

My set-up will have plenty of potential problems, but I breathe a sigh of relief with regard to vibration issues.

Was the Rockport turntable and tonearm in the line of fire of your speakers?

 

[Mobiusman]

The side walls and adjacent rooms and asymmetrical ceiling soffits make my listening space very problematic, but I have the luxury of locating the source components and the preamplifiers in an adjacent room separated from the listening room. The area where the components will be located is protected by a 4 foot dividing wall.

Also I will be able to close an acoustic curtain over the opening between the listening room and the adjacent equipment room. So I think very little acoustic vibration from the speakers will find its way to the turntable.

Also the speakers in the listening room and the front-end components in the adjacent equipment room all are sitting ultimately on concrete slab. And the turntable will be resting on David’s Nothing Stand, the weight of which could unsettle an Aegis Cruiser. So I think physical vibrations are unlikely to be an issue.

My set-up will have plenty of potential problems, but I breathe a sigh of relief with regard to vibration issues.

Was the Rockport turntable and tonearm in the line of fire of your speakers?

 

[Mobiusman]

The Rockport was not in the line of the speakers because it was behind the speakers. But it was close to JL F-113's which were likely much of the problem. I had the floor reinforced in key areas with 6x6 verticals to ground and 6x6 joists. When I turned off the JL's things got better but still had limitations in volume, which a Vibraplane helped somewhat, Buying a heavy (275 #) turntable (Triangle Arts Ref SE without suspension made it usable with the JL's. I only had the Rockport arm, not the TT.