Quote:   No need to apologize, jaejw1!  I've been following your posts with great interest, as I've been considering doing this myself.  The little tips, such as keeping the flange tips in when you set them, as well as covering them with tape, are invaluable.  Thanks!  Keep the wisdom coming!

Quote: Thanks, BP!  I just tried cutting my bi-flange tips back, under less than ideal circumstances (sitting at my desk with a pair of old scissors), and the results were great!  They don't look very good, given that I can't cut in a straight line for some reason, but the sound does seem...

Quote:   Thanks, Bloody Penguin.  I saw your post earlier, but forgot about it when I posted my little update.  I might try this fairly soon, especially since I got so many bi-flange tips from that Chinese site.  If I'm not crazy about the result, I can always just swap them out with a...

Just a couple of updates regarding my experiences with the 8320s, in case anyone is interested.  Oh, heck, who am I kidding?  This is the internet.  You're ALL interested in what I have to say, right?    Anyway, EventVista posted about some tips he found on Amazon called "Squish Tips."  I...

I think so. Those are the ones I ordered. If not, we're both wrong. :D

Shimrra, try doing a search for "earphone tips."  That's how I found them.

I just got my 8320s yesterday via an order directly from Monoprice.  The sound, with only a few hours of burn in, is pretty impressive.  I don't think they're as smooth as my Nu-Force IEMs, but the soundstage is already nice.  What I'm hearing now seems a little harsh and fatiguing, so I'm...

Thanks for your input, guys. Shortly after I posted my question, I stumbled across a similar post and saw the AKGs being recommended there, too. They're a little over what I'd like to spend, but I'll definitely check them out. It sounds like they're the new "darlings" of the forum, so I need to...

Several days a week I ride the bus into work and I want to get some new headphones for my commute. Here's where I'm coming from... I'm a big fan of Grado headphones and will likely be getting either the SR225 or SR325i next month to upgrade from my low-end SR60s. Usually what I use on the go is...

Sam, You can get very good performance out of a "entry-level" C-Moy that will really compliment your Grados. I've built a number of C-Moys, using Tangent's instructions, and have been very pleased with the sound, although I'm starting to hear the murkiness of the OPA2132PA amp and will be...

Fresno Bob... Thanks for the tip. I think I'll just go with new parts, as my goal is to build a few C-Moys to give out as gifts. Scrounging a couple of capacitors for one amp is possible, but tracking down ten or twelve isn't really very practical. Mono... Thanks for further clarifying the...

Steve... ahh, so your preference for the FM series caps is really just a cosmetic thing? That's actually good news, because its one *less* thing I need to worry about. Fresno Bob... Well, you certainly have a headstart on me. I have a couple of jacks and maybe a switch or something, but need...

Thanks, guys! I appreciate everyone sharing their thoughts and opinions on this. It sounds like there's a fairly strong consenus for at least .22 uf caps for the input and then 470 uf caps for power (with Steve's suggestion being for even larger caps). Mono's comments about decoupling is a...

I've mentioned in a few threads that I'm getting ready to build some new C-Moy amps. I've already built two C-Moys (and put together a number of circuit boards awaiting OPAMPs) using Tangent's recipe, and they turned out great. I'll be using the Serpac 9V case, like I had done with my original...

Quote: Originally Posted by tangent This does indeed sound like you have weaknesses in your wiring scheme. Plugging in a source should make things worse in a properly-working amp, if anything. But also, your amp's gain is probably too high. Try lowering it to somewhere in the 4-6...

Sorry it took me so long to get back to this thread. Yesterday was a little manic. Snoopy... that's a really slick little circuit. Thanks! Unfortunately (or fortunately, depending on how you look at it), Drew and Nisbeth seem to have talked me out of the flashing light. I may try it anyway...

Quote: Originally Posted by tangent The solution to that is to start posing questions to yourself and seeing if you can answer them by measurement or calculation. In other words use the concepts you're trying to understand, don't just watch others use the concepts. That's a very...

I think that the C-Moy is kind of seen as the "gateway drug" in this hobby and a lot of the posts hint at the fact that you'll only use it for a while, until you upgrade to something bigger and better. There are certainly better amps out there and many of them are quite affordable, but I built...

Tangent... Yes, it's clear... in a way. I find that most of this stuff makes perfect sense to me in a sort of philosophical, abstract way, but I have a slight disconnect that I need to overcome in moving that abstract understanding to real world situations. It's pretty clear, of course (it's...

Nesbith... you're probably right in that I'm making this way too complicated. As I said, my goal was to put together a handful of similar C-Moys to give out as gifts. I thought I'd go with the C-Moy because I've already built a few of them and because... they're simple. Keeping with that simple...

Just did a Google search on the "lm3909." Thanks! It looks like it would just provide a flashing light, which might be neat, but I'll likely run into issues regarding the proper voltages, as Tangent pointed out. Most of the sample circuits I've looked at require 1.5V to power the flasher. Robb

Wyloch, Skyskraper, and Tangent... thanks for your posts. I appreciate your ideas. Skyskraper... what's a "lm3909?" So, if I manage to build a little circuit like the one Tangent is describing, and put it in line to the headphones output, as Wylock and Skyskraper suggest, would I need to...

Good morning... I'm getting ready to build some simple C-Moys as gifts for a few of my family and friends. Nothing too fancy... likely just a "stock" Tangent version of the circuit and maybe a simple cross-over (switchable, if I can squeeze it all in). My plan was to use one of the...

Drew, Don't sweat the delays. I think everyone is thankful for your work on this... we can wait a little while for the wire to show up. Robb

Raif, I actually used some double-sided foam tape to "anchor" my free-floating boards in the Serpac cases (I think they're Serpac) I've used. Having stuff bump around inside the box made me a little nervous, so this seemed like a quick, easy solution. Good luck! Robb