milosz

Again many thanks to Pete B for his expertise and time. Now, this schematic is available to anyone who needs it - worldwide! If I come across a T1000 thread on Audio Karma, DIY Audio etc I will link to this thread here. The T1000 and T1030 were / are decent speakers. Lots of them were sold. I imagine a good many are still out there, and I can imagine a number of scenarios where someone ends up with just the drivers, or just the drivers and a disconnected xover, and this schematic can help them sort things out. FYI, the re-foam kits available on Ebay, Parts Express, etc, are actually easier to use than you'd think on the T1000's 8 inch woofers and the midrange driver, worth it especially if you find a kit that's not too expensive. I bought a kit for $19 with 4 woofer and 2 midrange surrounds, plus glue, it worked just fine.

This is excellent, thanks. This is much farther than I went into this. Very complete. Actually, I removed the drivers from the cabinet in 2005 when I noticed that the woofer surrounds were shot, and have used the cabinets for experiments since then. If you are interested in the experiments, you can see http://www.diyaudio.com/forums/multi-way/256074-road-3-active-speaker.html ) And then recently I cleaned out some storage space and came across the drivers and crossovers. I hated to just toss them away, so I refoamed the woofers and sold the whole lot on eBay at auction. This didn't result in very much income- about enough to ship them and then have a couple of coffees and a bagel- but now the drivers and xover will get a new life in someone else's hands and they will have the pleasure of tinkering, building and listening. The buyer needed more information about connecting the drivers than I had, and I noticed others over the years looking for crossover info on the T1000, so I started a few threads here and there thread and now we have all the answers. HAHAHA the only thing I personally was able to figure out from this crossover is that one side of the tweeter probably connected to the brown wire at "E" - but now greater minds have considered the matter and the answers are known! Just a great job here. A few last notes - each 8 inch woofer is mounted in it's own sealed enclosure, 1 cu ft in volume and with some poly stuffing in it- not tightly stuffed or packed, but not a "sparse" amount of fiberfill either. Moderate stuffing. The 6.5 inch mid has perhaps a 0.15~0.25 cu ft of sealed volume behind it. Also, this crossover is designed for the original T1000 system with woofers on the bottom of the cabinet's face, the midrange in the middle, and the tweeter at the top. Some subsequent T1000 version had the tweeter in the middle with the mid up top, that would have a different crossover design.

HELP!!I have a Boston Acoustics T1000 crossover but I do not know how to wire it to the drivers or to the input from the driving amplifier. (I also have all the drivers)This late 1980's 3-way speaker system has two 8 inch woofers, a 6.5 inch mid and 1 inch dome tweeter. Obviously they all have to be wired to the crossover and the whole business needs to have a + and a - terminal for connection to a driving amplifier. I wrote Boston Acoustics and they could offer no guidance.Can someone help me figure out how to wire this up?I've drawn the schematic and taken a photo of the crossover. Some wires were still connected to the crossover - these wires lead to drivers and to the speaker systems's pair of input terminals, one + and one -. I've indicated these connection points on the schematic, and the labeled points' letter correspond between schematic and photo.