Winter project - multiwaves of goodness.

jr@mac

Multiwaves, get it? WAVEcor and ViaWAVE? Oh man, I'm clever. I won't actually name them that - but I do like to have a working name on projects. 

This is one of those projects that uses drivers that are more or less NLA - the Wavecor are the Nomex version, and Solen shows one in stock for a pretty good price. 

Sooo.... will begin preliminary cabinet design soon, with a focus on diffraction and excursion control. As I am finding with many small woofers, the T/S parameters are slightly weird. The 4" HDS from Peerless, for example, models with a sweet vented F3 but the excursion models indicate excellent cone control below tuning. I believe John Hollander saw that in the 4" aluminum version as well. The 4.5" Vifa currently sitting on my desk are the same way, as were the Peerless branded 4.5" buyouts I used in Emoticons. It means they can take a much, much bigger beating than their size would indicate - and is one of the reasons (IMHO) why certain small speakers sound "bigger" than they are. 

Anyways, nothing physical will be happening with this project for several months, just wanted to show the drivers off 

greywarden

Hell yeah, looks like a good project. Looking forward to the build log

R-Carpenter

I see the Dayton amp on the background. Same one burned out in my house. Does yours have terrible "thump" noise on turn on?

jr@mac

It isn't terrible - but it is obvious. Not a huge fan of the sound quality or the generally implementation of the amp itself - that turn on thump is a deal breaker for me, I will not be buying another one. The internal headphone amp is pretty good, though.

R-Carpenter

I ended up with this one http://www.parts-express.com/topping-vx1-2x25w-class-t-amplifier-with-usb-dac-and-headphone-amp--310-336
Using it's build in DAC and it's dead quite.
I also like the fact that I can leave headphones plugged in and simply switch between the speaker and phone by pushing the button.