Most of the products were not changed, and specifications reflected either no change or only a insignificant fractional change - well within tolerance. Of those that had relatively significant changes, some should be considered to be improvements but most were probably mistyped or incorrectly calibrated measurements. For example, some motors listed relatively high Xmax, but Qms was fairly low. In these cases, Xmax is shown to be a more reasonable figure while Qms changed very little.

The consequence of these changes is minimal - most designs that were optimal for a 2000 model driver are also optimal for the corresponding 2001 version. Notable exceptions are the Alpha 15 and the Omega 12. The Alpha 15 will require a different cabinet and the Omega 12 will require a different crossover.

Below is a chart showing the differences between the 2001 models and their 2000 counterparts:

Motor Where used "Tube friendly" (y/n) Xover change (y/n) Cabinet change (y/n) Significant Change
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Alpha 8 Studio 1 Pi Y N N Qms
Alpha 10 Studio 2 Pi Y N N
Alpha 12 Studio 3 Pi Y N N
Alpha 15 N/A (opt 4 Pi) Y N Y Vas
Beta 8 Premium 1 N N N
Beta 10 Premium 2 N N N
Beta 12 Premium 3 N N N
Beta 15 Premium 4 N N N
Delta 10 Theater 2, 5 N N N
Delta 12LF Theater 3, 6 N N N Vas and Qms
Delta 15 Theater 4, 7 Y N N
Omega 12 N/A (opt Stage 3, 6) N Y N Vas and Le
Omega 15 Stage 4, 7, 10 N N N
Omega 18 Stage 4-18, 7-18, 10-18 N N N
Kilo 15 Premium Stage 4, 7, 10 N N N
Kilo 18 Prem Stage 4-18, 7-18, 10-18 N N Vas
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