C-Note MT Bookshelf Speaker Kit Pair & Other kits

[scottsehlin]

Thanks Matt,
We wanted to offer a kit for $100 a pair and we wanted a budget kit that would be a little more powerful than the Overnight Sensations. Thanks to the incedible quality and value of the new Dayton Audio inductors and DSA drivers we were able to combine those two goals into one kit. I did most of the design, with some help from the Dayton Audio engineers.

The crossover frequency is 3,000 Hz, I went low to try to push the DSA135's breakup as low as possible. For the tweeter I just used series resistance to drop the efficiency to match the woofer and help level out the slow 10 dB drop above 10,000 Hz (also makes the other components smaller, saves money). The phase between the woofer and tweeter at the crossover frequency match very well.

If you have any questions, just ask.

It would be interesting to run these against the Lithiums. Retail price points are about the same, extension is similar. Lithium is smaller, but somewhat less efficient as a result.

[ronk]

^ No idea. I have not finished the paint job on the baffle as I am waiting for warm weather to spray paint outdoors. But I do have the .22 caps wired in parallel with L2. My boards are ready. Paint front baffle and seal paint, glue baffle to cabinet, install binding posts, add adjustable part of Port, screw in drivers and wire everything and my c-note is ready.

[kenrhodes]

Yours sound harsh?

[ronk]

I covered my C-note with black ash vinyl. Didn't do a good job, but not really visible unless up close. I am too lazy and was never that good in the esthetics department. I have test the crossovers and partly broken speakers in outside the box. Aluminium drivers can be very detailed but fatiguing and a good crossover is key to getting the best performance. I did wire the. 22 cap in parallel with the L2 inductor to control for cone breakup so I will, hopefully, have detailed but not fatiguing sound.

I like the detailed sound but not harsh, that one gets with the best paper drivers.

[Evan Steeves]

No polyfill yet, I want to let them pay for a good 20 hours to see if they smooth out on their own before I play with it.

okay cool, well keep me posted on what you do after your 20 hours of play time! by that time I should just be finishing up mine. Did you add any foam/sonic barrier to any of the inner walls?

Hopefully these will do me well as rear surround duty. Maybe I should plug them up front and play some stereo music in them first to get them properly broken in?

[Atsaubrey]

thanks for the review!! Mine have arrived in Montreal but I don't have time to go self-clear the package and pick them up!!!

How much poly fill did you add so far? I have a big bag of it. Curious how much I should start with while doing my build :D

getting real excited now :D

No polyfill yet, I want to let them pay for a good 20 hours to see if they smooth out on their own before I play with it.

[JohnBooty]

You're not supposed to lick the MDF.

I'm not sure that's true. If that's correct then why do manufacturers give their finishes delicious names like Walnut and Cherry? Seems irresponsible at best.

[Evan Steeves]

Just got mine together after receiving this afternoon, wow! Wow! Wow!
Super detailed and will agree this is the best bargain build ever. Definately need to break these in to see if they smooth out, if not it's time to play with poly full. If you like a JBL/klipsch/horn sound youll love these. Again, break in and maybe some damping will resolve the issues but I will say they are super details but on the fatiguing side....agin I think I can tame them if need be. Staging is frigging amazing for a $100 build though!!!!! I'll play them a good 40 hours before going into "fixing them"...I am too damn happy right now with 20 minutes on them...just enjoying the music. Damn!

thanks for the review!! Mine have arrived in Montreal but I don't have time to go self-clear the package and pick them up!!!

How much poly fill did you add so far? I have a big bag of it. Curious how much I should start with while doing my build :D

getting real excited now :D

[Atsaubrey]

Just got mine together after receiving this afternoon, wow! Wow! Wow!
Super detailed and will agree this is the best bargain build ever. Definately need to break these in to see if they smooth out, if not it's time to play with poly full. If you like a JBL/klipsch/horn sound youll love these. Again, break in and maybe some damping will resolve the issues but I will say they are super details but on the fatiguing side....agin I think I can tame them if need be. Staging is frigging amazing for a $100 build though!!!!! I'll play them a good 40 hours before going into "fixing them"...I am too damn happy right now with 20 minutes on them...just enjoying the music. Damn!

[ronk]

I completed the crossovers on small pieces of plywood. I first measured the DC resistance with drivers attached and both crossovers measured at 6.7 ohms. Then I connected the crossovers to drivers and my dta1 and they work. My better vinyl will come in today. But weather is too cold to spray coat the baffle one more coat. Also I spaced and ordered 1 pair of binding posts. What am I thinking and I have ordered binding posts for 4 previous builds and should have ordered 2 pairs? I did buy 4 pairs of cheap binding posts from the shack yesterday; last Shack closing down in town. My build will be done next week when I can spray the baffle properly.

[Evan Steeves]

Glad I got my kit ordered when I did, they seem to now be sold out pn Parts-Express...looks like it was a deal too good to be true for many people! I suspect many forum members picking up this kit!

Mine is out for delivery today although I won't be accepting it. Have to self-clear the item myself (UPS always d icks around with that, making it difficult) in order to not pay exhorbitant fees for their 'clearing services'.

may have time this weekend to work on them! Need to pick up a few small things, such as wood to make stands, more speaker wire, etc.

[ronk]

My binding posts and caps arrived today. But I have to delay completing my c-note. The vinyl on the box was ugly so I removed the vinyl. I ordered better stuff but it will come sometime next week. Also, it is too cold to spray on one more coarse of the stone finish. I better wait until the weather warms up. So it is brown stone baffle with black ash vinyl. Hopefully, I will have a nice finish.

[grizzlyman]

I've been lurking these forums for a while, finally decided to splurge a bit and buy a kit. I'm impressed with how well they sound. As soon as the weather heats up a bit I'll strip them down and put some kind of finish on them.

[ronk]

I covered my backs and sides of my c-note with contact paper vinyl and the edges were coming off. I tried to super glue the edges but the edges became crinkled. I will have to order some better quality vinyl. I might get bright purple, red or irange.

[ronk]

You're not supposed to lick the MDF.

No licking, yuck yuck yuck. Just being close to and working with uncovered MDF makes my lips go dry and I can taste the MDF when I lick my lips.