New Air Suspension Footers for VPI TNT


During November of last year, I ordered the air suspension footers for my VPI TNT Mk. 3.5 turntable, and I patiently awaited the arrival of the upgraded footers until they finally arrived yesterday. As has been rumored here in this forum, the design of the footers has been upgraded to a sealed design that no longer requires air to be pumped into the footers. The new design should solve the tweaky issues relating to air leakage, periodic re-inflation and periodic re-leveling adjustments. So, for all who are interested, I think you will find that VPI now has the upgraded air suspension footers in stock and available to ship.
cincy_bob

Showing 7 responses by downunder

With these new balls. How do you balance the table considering the additional weight where the arm sits?.
That has significantly more weight the the other 3 legs.
With the air bladders you pump up the bladder to a higher air pressure to balance it.
Do one of the balls have a higher air pressure to cope with the additional weight at the arm?.

Or do you then have to screw the back right leg up higher?
Gladstone, I also own a HRX, so interested to see that in your system they add dynamics and tigher bass. have you noticed any downsides compared to the air bladders?

What happens with the holes on top of the 4 towers after you fit the balls in??. I hope VPI provide some nice looking cap or something.
How does the ball under the extra weight of the tonearm cope?. Is it the same pressure as the rest of the balls?.

looks like I need to contact VPI to get some.

cheers Shane
Jameswei, I assume this is what was supplied.http://www.elusivedisc.com/prodinfo.asp?number=HW-A1110B

I would think that for HRX owners that you would not need the 4 steel towers and feet, just the cup and balls - at a considerably lower price than $799. Do you know if this is possible?.

Does the additional weight at the right corner due to the arm place any undue pressure or lopsided effect with the four balls?.

Yiou are right, not having to pump up the air bladders must be great. I pump up the back right corner where the arm is every two weeks!
James. thanks for the info, I would go back to Bob at elusive disc and ask for a part refund. He clearly has not bothered to treat you as a good customer and ask VPI to supply the upgrade for the HRX only. That is bollocks stating that was/is the only kit available to order.

It is a bit of a pain now ringing VPI as Mike has almost retired so is never in the office, whoever(female) answers the phone just asks you to send an email. a bit frustrating, especially from Australia.

Anyway, you and gladstone say the balls work better than the leaking valves, so that is the main thing I guess.
How long are the balls supposed to last for - Mike mentioned last year about 12 mnths??
When I spoke to Mike at VPI a little while ago, he said the balls would need to be replaced once a year. I would guess this would have been a pretty wide guestimate as they have not even been out for a year yet.
He seemed to think given thye low cost of the balls, it was easier to replace all the balls every 12 mnths.

Not sure if this advise has changed recently

Does anyone know how much the upgrade is for the HRX??
I received my kit about a week ago. No instructions supplied so I put it together. I was worried about very little clearance bewteen the cradle and the corner cups. Frankly the upgrade did not sound better, it was leaner in the bass and seemed to emhasis the treble slightly.

I was talking an audiophile buddy of mine yesterday and he mentioned he had also upgraded to the ball suspension but VPI did not send out the black foam inserts that go up inside the corner cups so it stops the suspension ball from going up where the valve stem went previously, so he was waiting for some to be sent out. he told me to look at elusive disc web site to explain what the black foam inserts were, see link.
http://www.elusivedisc.com/prodinfo.asp?number=HW-A1111

Guess what, I did not receive the foam inserts either, I guess if some instructions like the one on elusive disc web site had been sent I would have realised that I had not received the full kit.
Well I dismantled the ball suspension and re installed the air bladders. The paddle balls had big circle cuts into them where it had been pressing against the small opening at the top of the inside of the cup. Well it sound a whole lot better now back with the air bladders.

I guess something as simple as black foam inserts can stuff up the sound of your TT and that also explains the lack of leeway between the footer and cup.

Anyway, this is a word of warning for anyone upgrading their air bladders to the ball suspension to make sure they receive everything before installing.

hopefully when I receive the replacement stk I will be able to advise if it was a positive change.
Socoaste, Could you please provide a little bit more information on how you did this.

What do you mean a 2nd set of O rings in the bleeder caps?.
I know you can replace the tire valve cores.

thanks Shane