TT & Subs= Rumble?

Hawkeye

nadams, are you refering to a filter such as a KAB RF1? I have no filters or controls on my pre other than to adjust the pf for the cart.

Gordon

Hawkeye

reeltrouble1 wrote: »

I resolved rack placement by keeping the amps (mono-block) between the speakers, I use a 5m MIT Shotgun balanced cable from the pre to the amps, not sure if you can do this or not. Maybe a balanced cable from the TT to the phono pre as another option.

RT1

I may have to revisit this. I get a much deeper and wider stage with the gear rack away from the center of the speakers but it makes the room very tight to do anything other than listen to music.

Gordon

nadams

My preamp has a switch labeled "filter". Regardless of if it's depressed or not, it only functions when you bypass the other preamp options (there's another switch for that). So, I always listen to my turntable flat, with the filter on.

madmax

Just a thought. Sit your table on a couple of MDF boards. It is possible the vibration has no where dense enough to transfer to other than the platter. Even if it doesn't stop the rumble it will probably make it sound better.
madmax

SCompRacer

Hawkeye wrote: »

I may have to revisit this. I get a much deeper and wider stage with the gear rack away from the center of the speakers but it makes the room very tight to do anything other than listen to music.

+ 1 to keeping the rack height low between the speakers. The Gingko isolation stands come in various sizes and do show up used on Audiogon.

Gordon, I hear you on setups affecting the use of the room. My South wall setup is the best as I can place my speakers further into the room without worrying about a wall behind the listening position. However that setup not only consumed floor space, it put corners behind each speaker which caused feedback problems with the turntable between the speakers, even with acoustic treatments in corners and on the back wall. My West wall setup (my wife’s favorite:D) keeps the gear on one wall while introducing back wall issues for the speakers and listener. With no corner near the right speaker in the West wall setup, I didn’t have any turntable feedback issues with the gear between the speakers.

Have you got any acoustic treatments in the room, either purchased or DIY? There was a time I attempted to enhance the bass with subs only to find I made the problem worse due to increasing room mode peaks and dips. Double stacked GIK Tri Traps in the corners solved my bass issues so I just run my speakers without subs.

bikezappa

I also had some feedback to my Ar turnatble in the 70s.
A simple solution was to mount the turnatble to one screw on the wall in to the stud. I connected three long thin wires tied together at each end. I hooked one end to the screw in the wal and positioned the turntable over the three wires at the other end. You need two people to do this to get the trunatble level. One wire is positioned at the back of the turnable and the other two are on each side of the table. It worked very well.

The bad is that it's a little unconvenent putting the lp on the table because the wires are a bit in the way. But I dramatically reduced the feedback and could even jump up and down next to the table with no feedback.

It's cheap and easy to do.