ARCHIVED FORUM -- March 2012 to February 2022READ ONLY FORUM
This is the second Archived Forum which was active between 1st March 2012 and 23rd February 2022
hello, my first time posting. Any thoughts on using a record clamp on a 4004??
Hi, welcome to Beoworld...
RE the clamp.... Don't do it!!! Added weight is only going to affect the suspension performance and put extra wear on the main bearing...
Lee
Peter Badame: hello, my first time posting. Any thoughts on using a record clamp on a 4004??
As already said, under no circumstance is this necessary on a BG TT and is to be avoided at all costs. What do you think you may achieve by using one?
Dave.
There was a modification to the 4002 done in the US with a glass platter, Grado cartridge and record clamp. One of the faults of the 4000 type deck is poor record support so I do understand the thought. However to do this means a fair amount of re-engineering rather than just adding a clamp.
Peter
Hi, and thank you, my thinking goes like this i have had B&O turntables for many years and i have never felt like i needed a clamp of any kind but now i have gotten a few new records that have a bit of warp in them and i was thinking that maybe a EON Research POD turntable record clamp may be the ticket to draw down on the vinyl while not adding any real mass to the platter. this would be used on my 4004 which i just rescued from ebay in the last ten days and had my technician who was a B&O service center for many years go through it and give it a clean bill of health. I'm really enjoying this one. I almost forgot to say thank you for the reply's and so it looks like I will leave well enough alone.
That is low mass - I might try it though the spindle on the 4002 is not that long. Let us know if you try it what you think!
Thanks Peter, I will do a double check on what kind of spindle length I have to play with to be sure that it may have enough to grab on too before I leap on a purchase.
Hello Peter, just an update reply on the clamp which is in transit. Hope to have it here by the middle of next week at the latest. In the meanwhile i have had the table back to shop for a couple of adjustments in the muting circuit and after the original changing out of a few internals it has been performing just great. I had to add the cartridge which i had a MMC-20EN with little to no use from a 3404 that i have had just sitting out in the garage for a number of years. Right no just listening to some Gershwin and it sounds pretty darn nice.
well folks, the results are in, it's a nice little clamp but not for this particular table. I couldn't get it to grab onto the spindle when I tried a 180 gram vinyl, so that was the first mark against, I have a fair amount of 180 and 200 gram vinyl so that didn't make me smile. The worse part though is that even if it would have grabbed the spindle it was going to hit the sensor arm as the stylus approached the the final grove on the album and that was with out the run-out groove. I will try it on my Rega 25 and hope that it can be used there. I'm pretty sure that it would work on my 3404 without issue. Nice little clamp, doesn't weigh anything.
Thanks for the feedback. Good point about the sensor arm - I don't think any of us thought of that! If there is no weight to it I can see that there may be a benefit in it's use on some TT's.
Never used a record CLAMP (which grips the LP's perimeter edges), but a 300gr platter weight mounted on the center spindle on my BG4000 and BG3000 is no problem at all.
On the BG3000, there was too much weight on the suspension springs, so I milled out the steel under-platter, to remove sufficient weight so that the clamp would no longer affect the suspension.
I know that on the 4004, there isn't much excess metal on the under-platter to remove, so, think about it carefully!