I have been a little concerned over the sound coming from my new table. Some things seemed better than CD but overall the sound was only different, not better. The highs seemed lacking, the bass seemed quiet, the midbass overwhelmed the treble and the sounds of my new LP's were only OK. The final straw was changing to a pair of 2.3TL's and hearing a clear lack of treble. If I were going to show off my system I would have played a CD. It started out as a $1000 project which turned into a much more expensive money pit. I'll not say how much but I could have taken a cruise with the cash and had some left over to buy a new SACD player.
Last week I was asking myself these questions:
*Was it all for nothing?
*Why does it sound so... "boring, dull, noisey, lifeless etc ???"
*How much work would it be to dump this thing?
*$^^$%&%^@#$^%%&
Over the holiday I forgot about being serious and since I was playing through a bunch of old LP's to find out which ones were still quiet and playable I started thinking about upgrades that I had read about. They were simple so what the hell. As I played around I let the LP's keep playing.
This is what I tweaked:
*I took the cover off of my preamp. In a review I read they said it really made a difference even though in the manual they specificly say not to do it because of the high voltages inside. Off it came.
*I found my bubble level and re-leveled the platter, but this time I leveled the plinth first and then did the platter. The bounce was not quite right but the platter was level. I can play with that later.
* I loosened the screws which hold the tone arm to the table and re-tightened them finger tight only. I had them tighter but read somewhere that the sound is deadend by having them too tight.
*Inside the preamp there were switches to bypass the coupling capacitors. I'm not sure what it does but the manual states that they put in switches to keep people from physically removing the caps. I switched them.
*I left the little covers off of the plinth springs. I read of people doing this along with wrapping the springs with surgical cotton but I didn't have any. I just left the caps off.
*Since I was doing everything I could think of I went ahead and figured out where the transformer in the detached preamp power supply was and set a Magic Brick on top of it.
*I put the level on the turntable speed controller and used it's leveling foot to make it level.
*I placed Vibrapods under the preamp.
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WOW!
Now this is the sound rlw has been telling me about!!! Forget any of my previous doubts about LP's. The midrange became extremely clear and much lighter, the bass went much lower and had plenty of authority and the treble seemed to push right through as it should. I have never heard a CD that sounded like this!
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I'm sure there is a combination of tweaks which worked together to make this happen but the Vibrapods under the preamp was the straw that broke the sound barrier. I raised up the left side of the preamp and pushed one under the back and one under the front. When I raised up the right side the sound went from crappy to excellent! I was so shocked I kept picking it up and sitting it back down noting this huge change. I went ahead and slid the other two Vibrapods under there and I must have listened to about 10 LP's in a row! It was late by then so I went to bed. I almost couldn't sleep!
A few tweaks I still want to do is to:
*Wrap the springs with cotton
*Figure out a way to precisely measure the VTA, (I don't like eyeing it)
*Set up a mounting table for the whole mess which allows the tonearm cable to hang down freely and has an isolated portion to sit the motor on as well as another isolated section to sit the power supply on. MDF box filled with sand? I'm not sure.
*Try reversing polarity on the speakers
*Anything else I can think of...
madmax :D

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