>Allison Acoustics was bought out by a Korean firm some time ago. Roy
>has since moved on (to RA Labs, I believe). Although drivers are
>still available through Allison, there are sonic and visible
>differences between the original and replacement drivers. I recently
>ordered a midrange driver for my early Allison Ones after attempting
>to have it repaired. The new midrange is more subdued than the
>original (down a few DB I'd guess) which is fairly noticeable,
>however it's probably as close as one can get in a replacement.

Those Allison Ones are about 20 years old now and could also be having
crossover capacitor problems. Also, be sure to check the crosover
level switches.

>FWIW,
>-Steve

>Mark G. Spencer wrote:
>>
>> I just spoke with Allison acoustics in Kentucky and verified that
>> replacement drivers ARE available for most classic Allison models.
>> (Model One - Nine, CD models, 115's, 130's, etc.)
>>
>> You can get in touch with them at 606-236-8298.
>>
>> Main reason I'm posting this is that I've been told many different
>> stories on what was available, and had thought until today that you
>> could NOT get a replacement Allison midrange anywhere unless you
>> pirated the part from another original Allison.
>>
>> Hope this information helps!
>>
>> The Unofficial Acoustic Research repair/modification page!
>>         http://bondo.wsc.mass.edu/students/mspencer