Revised MBOW1 3-Way

Revised Crossover for the Best Buy Insignia

Revised Crossover for the BR-1 Kit

Mod for Morel 403.5 3-Way


Revised Crossover for the Norh 9.0 Marble

The New Vifa Tower

Fixing the Polk RTi28

The MB20

The MB27

The Plop-in-the-Box

The Usher Two-Way

Revised Crossover for the Radio Shack LX550

Alternative Crossover for the Dynaudio Gemini

Crossover for the Revelator-RT1 Mini Monitor

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The Acoustic Research AR4x

A Tale of Two Cabinets

Tweeter Comparison

The RadioShack Minimus 7

JMLab Mezzo Utopia,
Tannoy Westminster,

Measurements for the Radio Shack LX550

Proac Super Tablette

Acoustic Research AR3a

Sound Dynamics RTS-3

Stock vs Modified Gemini

NHT Super One

Crossover for the Revelator-RT1 Mini Monitor

Here is the crossover schematic for the mini monitor that won first place in the DIY2000 open division.  It uses the Scanspeak 5" Revelator midwoofer and the HiVi Research RT1 ribbon tweeter.  The narrow baffle version of the Madisound 11 liter wood style cabinet works well, with a 5-3/4" by 2" port.  However, I don't really recommend that you build this thing.  It does provide very detailed and wide range sound, but a single Revelator is not very sensitive, and the ribbon requires more padding than I would have liked.  In addition, it is very expensive and just not a good value.  I think the Revelator makes more sense as an MTM, where truly amazing bass and midrange accuracy can be obtained at reasonable sensitivity levels. That's even more expensive, of course, but in this case it's worth pulling out all the stops.  Sorry -- I don't have an MTM design, and I have not heard Rick Craig's.  In the low pass filter, the resistors really aren't resistors -- those are just the suggested dcr values for the inductors.