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Posts by michael hurd

Some other pointers..... don't try and cheap out and use hardware store garnet or flint sandpapers.... they won't work. Go to an autobody supply house, or something like a Pep Boys to get sandpapers that have are made for the purpose.
Body filler works fine on MDF, however if you haven't used it before, it may be to your advantage to check out a few videos on the use and application of filler. What I can tell you is to try to apply the minimal amount smoothly each time, not try to glob on a big blob and then try to sand it off. Mix on non-porous smooth surfaces, and mix only a small amount at a time. ( as much as you can apply in 3-5 minutes ) If you mix in too much hardener, the chemical...
What is the cone material, metal, plastic or paper? Keep in mind that many cones are painted, and as long as you use a product that's compatible, you should be OK. Some plastics may not like strong solvents! Try giving Polk a call, they may be able to help out selecting a product.
Image used without permission?!
What is the gain set to on the O-audio amplifier? You may have a case where your AV Receiver has a high enough voltage output to drive the O-audio to clipping, even if the 'Gain' knob on the O-audio isn't turned all the way up. In fact, you could clip the amp with the gain less than 1/2 way with a strong enough signal. You may have to turn the sub output down below 0db. Are all volumes in the box accounted for? IE, was the port displacement figured into the...
Ported subwoofers need a high pass filter to roll off the low end below the tuning point, otherwise, the driver will do exactly what yours is doing. Also, you may have a gain mismatch issue. ( IE: too high a gain on the O-Audio ) Store bought devices have built in filters and compressors to ensure that there won't be any ugly noises when the average person hooks it up and presses play. Repeated overexcursion, or a particularly loud low frequency below tuning can...
It's listed at 32.7 mm one way in the .PDF located at Parts Express.
I would disagree that there is a huge hump in the response, based on my experience and measurement of the TC1000 (predecessor to the Epic line). I have a ground plane measurement of a 15" TC1000 here: I would also expect the stainless former used in the Epic ( the TC1000 uses an aluminum former ) to have better performance yet, and it's hard to say what other tweaks have been implemented in the motor.
Tip / Sleeve...... not Tip / Ring / Sleeve.Scroll down and see the difference in the connectors. Even though the page is for TRS, they show TS connectors as well.http://en.wikipedia.org/wiki/TRS_connector
The driver has been mounted, it's obvious by the top shot of the surround / basket, and is really really full of dust, on the spider etc. 3HPLM is nomenclature for 3HP motor, LM = Linear motor variant. That would mean it's a 3 inch coil and the motor is made for a linear wound coil. ( predecessor to the LMS ) If the gap is clean, and the coil is centered, you should be ok. It looks like there are a few marks on the cone as well. TC3LM More or less a...
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