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In Reply to: Pioneer Pl-12D lateral balance posted by Munkie_NL on October 8, 2006 at 03:20:44:
You can still download the manual for the PL-12D at vinyl engine and it has very good instructions, including images, of how to adjust the lateral balance. You want to have the balancing weight 10-15 mm. from the end of the post (the left side "end" of the post it is hanging on). I think that it worked best right in the middle of that range so I adjusted for 12.5 mm right in the centre of the weight from the end of the post.Also, if you have the weight hanging "straight" down and you adjust and tighten when the arm is in the rest position, when the record plays, the weight will not be hanging straight but will be off kilter. Don't know whether it makes any huge difference, but it made sense to me to adjust the weight to hang straight down while a record is being played; to do that I ended up measuring and tightening with the arm about half way through a record with the table unplugged to get that weight hanging straight down while the record plays.
For VTA, reelsmith's (I think that's who-hope I've given credit to the right person) recent suggestion to place 1 or 2 beater records (no warps obviously) under the mat worked much better for me than "double matting" which seemed to impart a kind of diffuse and unfocused sound. Try out a record or two under the mat for VTA. It really worked well for me and made a huge difference.
I still can't believe how good this table sounds with an AT 120E in a system I set up for my son recently, and I still have to follow your instructions on removing the bottom etc. Not "the last word" of course, but very satisfying nonetheless and, as you pointed out, great with rock which is what he's playing on it.
Follow Ups:
Thanks Blake. VE why didn't i think of that before. I'm getting old. Great resource for manuals etc. in a world where content like this isn't for free anymore. Try the bottom plate mods. Easy and cheap. Most importantly, have fun.
"The torture never stops"Greetings Freek.
Munkie:Can you just take the bottom off by unscrewing the feet and taking the pressboard off? There's nothing attached to that plate that needs to be re-attached or secured to anything else; is it just a question of removing it and having the table "bottomless" and supporting the table on something with enough depth (cones or pucks as you suggest) so that there is sufficient clearance underneath?
The bottom plate comes off after taking off the 4 rubber feet in the corners and 4 screws in the middle of each side. Inside there's a small screw with an (earth?) wire, you have to loosen that one as well. I guess it's a kind of screening, there's a kind of aluminium foil on the inside of the bottom plate.
You can put the Pioneer on rubber pucks, feet, cones, spikes whatever. Preferably on a wall shelf. Instead of using it without bottom plate you can try a thick bottom plate from 18 mm MDF or birch multiply. This is consistent with Thorens tweaks described on the Analog Dept. site. I used to be fond of damping TT with bitumen stuff but i'm getting more careful with that, you don't want to damp the life out of a TT. It's cheap and fun to experiment though. Do a search on "mats" here and you have an entire evening of reading to do!
"The torture never stops"Greetings Freek.
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