That is a lot less than I expected and very reasonable. Thanks for the information.

Turns out, it was plugged. The wax filter on these is not supposed to be removed (you are just supposed to scrape out the cup with the provided tool to clean it), but as a last resort I pulled out the membrane and the left side is now back to full volume. No more filters, but it is now back to...

I have not contacted them yet (this just happened last night). If the cost of shipping/diagnosis/repair approaches half their cost, I will probably just wait for the e500.

The left is now much quieter than the right and is lacking bass, so I assume the driver handling the bottom end has died. Luckily, I have an old pair of ER-6i to fall back on, but this leaves me with a dilema. Do I pay to have my out of waranty UM2 repaired (I was fairly happy with them), or...

Westone UM-2 are 3.20 mm (I happen to have digital calipers at my desk). Since Shure and Ety tips fit the UM-2, they should be 3.2 mm also.

Quote: had people right behind me and not known it I installed a rearview mirror on my monitor, which goes a long way torward eliminating that problem. Thankfully, my phone has a red light that blinks when it rings. Canal phones go a long way torward making life in a cubical farm...

Datasheet: http://www.bourns.com/pdfs/50.pdf

When I first started working on my amp over the holdiays I got 3 of the EVJ 10k pots to evaluate (they are cheap, so why not). They all used most of their +-20% range and had large differences between the two elements. The best was 1.5k apart at 10K and the worst was 8.6k for one element and...

The jacks are isolated (the entire exterior is plastic). Yes, I made the boards myself. The case I used is the 4 x 2.75 x 0.75 version. If I were to omit the input caps, I could get it in the 3" version. The opamp is the LMH6622, a low voltage (+-2.25V to +-6V) design capable of putting...

Yup.

They are the Kubicon jacks available at Mouser.

Finished moving it over. I like this much more than the plastic Pactec case I was using before. Although it is a little wider and longer, the thinness (0.75") makes it more pocketable. The complete amp (with quarter for scale): Full res pic Innards: full res pic Before...

Scroll down on the linked thread below to see stats on the number of LiPoly fires just in people participating in this one RC forum (its several hundred): http://www.rcgroups.com/forums/showthread.php?t=209187 There are also some nice videos of mischarged LiPos catching fire referenced in...

You can get lithium polymer packs of 11.1V and 340mAH that are just slightly larger than a 9V. As mentioned above, overcharging can (and has) caused serious fires. If you were to use these, a professionally made charger is a must.

I am putting my CMOY into a Lansing DN1 case. It is an extruded aluminum case only 0.75" thick. Here is an end-on pic with the obligatory quarter to show thickness (shown without endcaps because they didnt arrive with the case today - Lansing is shipping them Monday): The outer dimensions...