Recent content by newusername

The XBL^2 tweeters are OEM products from the company Dan Wiggins works for: Acoustic Development International. The last I heard, they were in a few home audio finished units, and were "in the plans" of an online car audio company that has an active presence in forums. In the case of the...

RE Audio will never license XBL^2 tech again, but there have been XBL^2 tweeters for at least a couple years now.

XBL^2 and the iteration in the H2 share something in common: they're both dual-gap, single-coil designs. The difference is that the space between the gaps in an XBL^2 motor is achieved by machining a gap into a single continuous top plate, whereas the dual-gap approach patented by STEP...

Mass does play a role in how far you can extend response. The upper frequency response is strongly related to the initial rise-time of the driver which is a strong function of the coil's inductance (and how it varies with current and position). After the initial rise-time, however, mass...

How many cones are attached is kind of irrelevant. Tell me: does the radiating surface area change significantly? There lies your answer as to the semantics.

Split coil is the opposite of XBL^2; in their most basic forms, XBL^2 has two gaps and one coil, split coil has one gap and two coils. Split coil's advantage is more linear BL and lower inductance than your standard overhung design. Differential Drive is quite different. It has way, way lower...

I think you should have read my post more closely. I specifically cover that objection.

What if the factory makes it to fit well with your sub, or vehicle? I guess to me, whether it is prefab or custom makes no difference. What matters: - Does it fit in my vehicle? - Does the alignment work well with my sub and vehicle to give me the response I desire? - Is it well-built (what...

Pretty simple to calculate. Measure the dustcap before paint, and after paint. Add the difference to the published Mms (yes, I suppose we'll trust the manufacturer, unless you're skilled enough to test it yourself). Then calculate all the Thiele/Small parameters again...

What makes a box "custom?"

The owner(s) of most companies don't even compete. At least Jacob can relate to his clients.

See, you're only scraping the tip of the iceberg if you're using the "sounds better" argument. JL has both their feet to stand on. Any audio engineer worth his salt will tell you that.

I don't know enough to comment on that. I do know that a small percentage of the population is capable of reading a person so well (using facial expressions and general mannerisms) that they can simply tell when most people are lying by watching their behaviour during their responses to questions.

Polygraphs are horseshit anyways.

Sorry to continue the derailing. I'm bored and this is my idea of humour at the moment.