Recent Comments

• NS-1000M Crossover
• 13 July 2018 at 07:36AM
• For full details, and further diagrams, of this project please look here:
  
  http://www.audioflat.co.uk/phpBB3/viewtopic.php?f=7&t=198
  

• NS1000 TRI-ton
• 20 December 2015 at 07:28AM
• I'm afraid I don't know how much they would cost to make as I already had all the steel (tube, plate and threaded rod). The only bits I had to buy were the lead shot and paint. They did take a lot of time to construct though, particularly with regard to the finishing and I'm not planning on making another pair.

• NS1000 TRI-ton
• 27 October 2015 at 10:36AM
• I don't think I can add another picture but here is a link to the diagram:
  
  http://i62.photobucket.com/albums/h90/markemark_2006/Yamaha%20NS-1000M%20Refurbishment/Speakerstanddiagram_zpscb5d3e16.jpg

• NS1000 TRI-ton
• 26 October 2015 at 06:23AM
• Hi Katza, wow it is complete chance that I have just seen your comment (this site really needs email notification of new comments I think).
  
  Before I answer your question their a few updates to list on these speakers and stands. I did build super-tweeters for these speakers and their is a seperate project description about them on the website (I'm very pleased with their performance). Also, the bass drivers of my Yamaha speakers are not actively driven by a Lab.gruppen IPD1200 power amp - this includes a digital crossover and room correction (in room measurements were made to set this).
  
  The speakers now make contact with the stands via Delrin pucks. These are approximately 40mm in diameter each and the front two are longer slightly than the rear one - this imparts the angle of rearward tilt to the speaker. A hole is drilled through each puck and this interfaces with the ball bearing which rests in a similar hole in the top of each stand upright - this overall construction is similar to a ball joint. The mass of the speaker coupled to the relatively large surface area of the puck surface means that the speaker does not move over time (I've been using this system for over a year now with no problems). It also helps that the speaker does not vibrate independent of the stand, the Delrin puck/ball bearing (stainless steel ball) is very effective at transmitting vibration from the speaker to the stand.
  
  I made an error in an earlier reply, the floor spikes I made are not M12 but actually M16 (so quite large :-)).
  
  I do have a diagram explaining the speaker/stand coupling arrangement but I'm not sure I can post it here - I will try.