NrT Upgrade instructions with video!

[davef]

I finally had time to upgrade my front three speakers this weekend, and had a few minor issues. and a few questions:

Speaker 1: When removing the leads to the binding posts, I notice that one of the lock washers had split apart. It wasn't very tight (in fact, none of the binding posts were very tight), so I'm not sure how it had broken. I looked to see if there was a comparably-sized washer in my tool box, but no luck. My wife makes chain mail jewelry as a hobby, so she volunteered one of her brass jump rings as a substitute. It seemed to work, but will this be a problem (corrosion)?

This will not be a problem. There is nothing special about the washers that were used. In fact, a standard external tooth washer is a great replacement.

The next problem was with the small-sized leads from the new crossover to the woofer and NrT tweeter. I could not push either of them on, and had to open them up a little with the tip of a screwdriver. The large ones slipped on just fine. The same was true for the other two upgrades.

These should be installed on an angle, such that one corner of the connector is installed onto the tab first.

Speakers 2 and 3: These both went pretty much the same. Everything was fine until it was time to install the new crossover. On speaker two, I could not get the back left screw to go down all the way; there was a gap of about 1/8" between the bottom of the screw and the board. I unscrewed the other screws and pulled out the crossover, and tested all the screws in the holes. All of them went down fine, but when I replaced the board, the back screw just would go down all the way.

One speaker number 3, I had the same problem, except the front two screws would not go down all the way. I'm not sure if the holes are slightly out of alignment, or what might be causing the problem. I even made sure that I noted where each position each screw came from, and replaced them with the same exact ones.

This is the first report of this type of problem and without having us examine the issue directly, there is not much I can offer as to the cause of the problem. That being said, if the crossover board is tight and not vibrating, all is fine If you are concerned, you might try installing a washer in between the top of the screw and the crossover board to make up for the gap you are describing.

Please contact me directly if I can be of any additional assistance.

[hearing specialist]

...all those crossovers...I honestly think I just shed a small tear...(sniff)

[kamaboko]

I'm late to the game on the nrt upgrade for the Sierra 1's. Is this still available?

Thanks,
K

[davef]

I'm late to the game on the nrt upgrade for the Sierra 1's. Is this still available?

Thanks,
K

Yes -- absolutely still available. In fact, our next shipment of NrT domes are scheduled to be delivered tomorrow

Please give us a call if you would like to order the kits.

Thanks!