Originally Posted by hifiguy58
I've got a pair of Time Window 1a's (the ones with ports on both sides) and I'm hoping I can get the 3's to sound as good as they are. I mean these things are incredible...they image better than anything I've ever had. They are truly intoxicating, music just pops out of these things! The 1a's were built around 1980/early 80's...and the 3's were built in May, 1989 (I have the original boxes). Yet the 1a's sound lively, engaging, while the 3's are a bit slow and dull. Fingers are crossed...I've read changing the caps on the 3's have done wonders.
A few thoughts on room placement, I'm able to have speakers about 60" from the wall behind them, and 30" from the side walls...I'm hoping the reason the 3's aren't sounding as good as the 1a's is just due to the old caps, and not because the listening space isn't wide enough...which is about 12.5' x 17'. Actually, It's an upstairs loft so most of the back wall is missing.
I struggled a lot trying to get the sound on my 3's right. I bought them used. I changed both the electrolytic and mylar caps which made a big difference. But I had a pair of TF-1000's that I was comparing them to and the 3's just sounded dull compared to them.
I completely disassembled them. I checked the continuity/resistance on the variable resistors, the speakers and the wiring. I even desoldered the resistors on the crossover and checked their values to see if they were in spec. Everything checked out fine and within spec. And still they sounded off. I was trying to figure it out for months. Jamie was helping me out a lot and he was even kind enough to speak with Steve about my issues. I couldn't figure out for the life of me what was wrong with them.
Eventually, I came across a drawing of a pair of 3's side by side and it was like a bolt of lightening hit me. I noticed that in the drawing it showed that the ports on the speakers were on the outboard panel of each speaker and I knew I had them positioned with the ports on the inside panels. It turns out that on the pair I have the labels on the back top side of the speakers were reversed at the factory. The right label was on the left speaker and the left label was right speaker. So when I set them up (per the instruction manual) with the arrows both pointing to the center the speakers were reversed.
My buddy was listening to them in the living room when I figured this out. I ran into the living room and shut off the stereo, switched the speakers around, and boom! They were instantly "fixed". We just sat there with our mouths open. To this day it still cracks me up to think about how much music has been listened to through those speakers since they were built and how much the previous owners missed out on.
Regarding placement, my living room is 15'6" x 38" and my 7's face down the length of the room so that back wall is quite a ways away. They are set about 3' back from the back wall and the side walls. The imaging and sound stage are fantastic. I found that if I moved them closer to the walls the sound stage was wider but I seemed to lose the center stage. This was not really an issue with multi-channel sound with a center speaker. But it did not sound quite right with 2 channel music. My speakers are about 9 feet apart and my power spot on the couch is about 10 feet from the speakers. This seemed to be the best positioning for my room.