You might benefit from properly shielded interconnects from the turntable to your phono stage. The old way of using the signal return path (signal “ground”) is completely ineffective at blocking EMI and RFI noise.
Need Help!
Hoping one of you out there in the great ether might be able to help me solve the following dilemma:
I'm using a Sanus SFV49 A/V stand as an audio rack. Here's what it looks like:
https://www.sanus.com/en_US/products/furniture/sfv49/
I've got my amp and turntable side by side on the top shelf of this thing and need to provide more isolation or distance between my turntable and speakers that are on either side of this stand. I need to center both the turntable and the amplifier on the top shelf with the turntable above the amplifier on some sort of shelf or riser. Sanus doesn't make any accessory like this that would do the job. Wall-mounting the turntable is not an option. The amp is too big for a lower shelf and there's no room to put it on the floor on an amp stand. I'm wondering if an amp stand or an add-on shelf from Pangea, Vulcan, Salamander or a company like that might work. The amp (McIntosh MA5200) is approximately 17.5" wide X 6" high X 22" deep and weighs around 40 lbs. I'd like to have, at least, 1" of ventilation for it (i.e. 1" space between top of amp and bottom side of shelf the turntable would sit on). The turntable (Mofi Ultradeck+M) is approximately 19.69" wide X 6" high X 14.25" deep and weighs around 23 lbs. I'd be open to something custom-made, as long as it didn't cost an arm & a leg or my first born.
Any ideas, guidance, pearls of wisdom on this (other than "just buy a new rack") would be greatly appreciated!
I'm using a Sanus SFV49 A/V stand as an audio rack. Here's what it looks like:
https://www.sanus.com/en_US/products/furniture/sfv49/
I've got my amp and turntable side by side on the top shelf of this thing and need to provide more isolation or distance between my turntable and speakers that are on either side of this stand. I need to center both the turntable and the amplifier on the top shelf with the turntable above the amplifier on some sort of shelf or riser. Sanus doesn't make any accessory like this that would do the job. Wall-mounting the turntable is not an option. The amp is too big for a lower shelf and there's no room to put it on the floor on an amp stand. I'm wondering if an amp stand or an add-on shelf from Pangea, Vulcan, Salamander or a company like that might work. The amp (McIntosh MA5200) is approximately 17.5" wide X 6" high X 22" deep and weighs around 40 lbs. I'd like to have, at least, 1" of ventilation for it (i.e. 1" space between top of amp and bottom side of shelf the turntable would sit on). The turntable (Mofi Ultradeck+M) is approximately 19.69" wide X 6" high X 14.25" deep and weighs around 23 lbs. I'd be open to something custom-made, as long as it didn't cost an arm & a leg or my first born.
Any ideas, guidance, pearls of wisdom on this (other than "just buy a new rack") would be greatly appreciated!
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- 10 posts total
You should have at least 7 " of space in between shelves. You can place the amp on either the middle or bottom shelf. Place footers(I suggest cost effective Isoblocks) under the amp 1" in from the edge/ back of the shelf and let the 4.5" (20%) of the amp canterliver over the edge. There is enough weight - (the transformers are in the front of the unit, heaviest part) in the 17.5" (80%) of the unit that is directly supported by the shelf to keep it stable. I reccomend the bottom shelf to get the most separation. Additionally I would bring your speakers forward toward your listening postion to get even more separation and better overall sonic presentaion. I also agree with those who suggest taking abother look at your cabling and investing in an upgrade if neccessary. https://shop.mapleshadestore.com/Mapleshade-Isoblock-Sets_p_1224.html In general I don’t think glass is a good option for shelveing, here is another option to check out if you are looking to invest in a isolation solution. https://audiophilevibrationcontrol.com/ Best Of Luck |
This is offered just in case anyone happens upon this thread looking for similar solutions. After several email exchanges with MAC Labs, Mofi, TT lab and others, I eventually solved this problem without spending any dough. I got rid of my AT&T DirecTV service, not because of this but because every since AT&T took over DirecTV, service just sucked out loud! Almost $180.00 a month and the worst service I've ever received from any enterprise in my life! One tech told me the DirecTV receivers I had just below the amp but a good distance away from the TT and the ethernet connection for these things might be causing the problem. I still have the ethernet connected to my NetGear WIFI router. So, seems like this was the funky DirecTV receivers. That, or another suggestion I employed, as well. I made certain the amp, TT and power conditioner power cables where separated from each other as much as possible. Lastly, I upgraded my speakers from my 20 year old trusty and thoroughly wonderful Paradigm Monitor 9 to new Revel Performa 3 F206. Could be these are better shielded? Don't know but the TT rumble is now history and the music rocks. However, I am not stopping there because all of the techs I communicated with said I really should put more space between the amp and the TT, or more importantly, its cartridge. I've got a new Salamander rack on order. Thanks again for all the gray cell grist. You folks are all truly wonderful! Stay Safe! Stay Healthy! And get vaccinated! |
- 10 posts total