? Adding tactle tranducers to new Berklines

I've got three new Berkline chairs. I have mounted three tactle transducers to the chairs. I just wonder if yours are mounted the same way? I'm asking because I'm just not getting the same amount of noticable "action" from the T.Ts. with my Berkline chairs.

Here's how I mounted my T.T.s .
On the bottom of the chair there is a black metal frame of angle iron that the whole chair rests on. It makes a complete square to hold the body of the chair. In the center of the two side pieces of this frame there are two holes. I attached my tactle tranducers to a piece of hardwood that measures approx 8 inches by 17 3/8" and secured the longer ends of the wood to the frame by screwing 2 inch screws into the two holes on the left and right sides of the base of the chair frame.

I do feel the low bass through the arms, but very little through the seat of the chair like I used to with my old cheaper smaller chairs. Have any conclusions or suggestions?? Is this normal on a quality chair??
Thanks, Tom B.

Thanks to both of you for the comments. Yep, it's the smaller, lower powered AURA that I got back in the 1990s. I power them with my older 50 watt per channel Denon stereo receiver.

I have two of the AURAS wired to the right channel in series under my sofa at the rear of my theater and they still do great. I wired them in series because they are rated at 4 ohms. Of course, that way the receiver sees 8 ohms.
I wired the other three under my Berklines in series to the left channel. That way the receiver sees 12 ohms. Of course I use the LFE output from my preamp as the source for my Denon.

In the past, this has always given me more than enough "action". I used to turn the volume on the Denon to about the 11 or 12 o'clock position, with the balance adjustment turned,( to the left to about 9 o'clock), to favor the output to the three chairs. Now I've got the volumn up to the 4 o'clock position, almost max, with the balance level almost all the way over to the left channel feeding almost all the power to the three AURAs under the Berklines. I still just barely feel the AURAS under the Berklines.
Thanks again, Tom

Thanks Kyle,
Now that makes excellent sense. Do you remember how they were attached to the springs?? I really didn't think of that. Maybe I could attach the boards they are mounted on to the springs???

Ken they were those recliners with the complete frames made from the black metal tubing. The tubing supported the arm rest too. Seat cushion and back cushion were very thin filled with foam. I only paid about $100 for each them. Like I mentioned earlier.....

Thanks for your reply..... the question now is : what would be the best way to attach the AURAS to the springs.... As I think all of you know, the springs are not coil springs but flat springs that kind of look like this:
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I don't know the correct terminology, but I'd probably call them "leaf springs".

About the only thing I can think of is to mount the AURAS on a piece of plywood that is just a little bigger than the base of the TTs. Then maybe wire the plywood with the Auras attached to the springs at the four corners .......
Any better suggestions?????

Do me a favor, read this and see if it is anything like the way you did yours:


Please let me know if I'm not understanding what you did..... won't be the first time.
Thanks, Tom

Just thought I'd let you know that I have found a lot of answers to my questions on Roman Shenkerman's website. He sells the Buttkicker TTs.

Also, as you probably know, he has the Berkline Powerbuy going on right now. Very interesting as to the way they suggest, and show with the kit, isolating the TT action so it remains with the chair. It works too. Thanks to all of you for your suggestions.

Kyle,
The site you suggested was also even more helpful. they had pictures that showed me that I had done the right thing too.
Regards, Tom B.

Thanks for the reply Doyle. I knew that, but I just didn't think much about the 33% drop in power. Thanks for the obvious reminder.

barhoram, I understand. Thanks for the clarification for my brain.

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BTW just for the record. I put some rubber, not hard plastic, but real rubber cups under the four corners of my chair frame where the small round feet extend down to the floor. That made a big difference to decouple the chairs from the floor. I now get more noticable "action" thanks to the information about the Buttkicker's Kit on Roman Shenkerman's website.