Optimus Pro LX8 / SPL

Archived from groups: rec.audio.tech (More info?)

In article <1127157279.674464.186120@g49g2000cwa.googlegroups.com>, levi001@earthlink.net wrote:
>Hello, I know that this is a long shot, but it seems there are a
>lot of knowlegable people here so I thought I would try. I have a pair
>
>of LX8's and I want to replace the driver in them. My problem is that
>I don't want the new drivers volume level to overpower the linaum
>tweeters. I Have done some research and found that when replacing
>drivers you need to stay within +/- 3db of sound pressure level or
>(spl). I have every other spec for this speaker but this one, anyone
>that can help in this regard would be extreamly gratefull! Also to I
>can find no listing for the Optimus company anywhere, tried to cross
>refrence Tandy, and Texas Insturments. Did however find the model
>number of the actull speaker to be replaced #SP90007. If anyone has
>any info that might be helpfull, even remotely Please advise!
>


I would first contact Radio Shack to see if they have a replacement driver.
I don't know if Linaeum company still exists.
Looking over the internet, it appears a Peerless woofer is used, and may have also been used
in Linaeum's products.


If the tweeter has an adjustment, you might get by with many replacements, else
it is critical to stay close to the sensitivity. There are many other things
to consider, but some replacement drivers from Parts Express or
from Madisound might work. Cabinet demensions and type are
critical to opperation.

Why do you want to replace driver. Does driver still function. One reason
I ask is to get the impedance.

greg

Archived from groups: rec.audio.tech (More info?)

In article <1127327699.784151.270350@g49g2000cwa.googlegroups.com>, levi001@earthlink.net wrote:
>Greg, thank you for your help. The driver does still function, and it
>is 8ohm. The biggest reason I would like to replace the woofer is that
>it has a muddy sound that dosent hold up with my newer lineaum center
>channel which uses kevlar drivers. I have a request in with peerless,
>and they have told me that they will see what they can do. I have been
>through all of the Radio Shack stuff right down to the most obscure and
>still no dice! I know of many of the crossover fixes for the lx8's,
>however I find no problem with the tweeter only the inferior
>performance of the woofer! The cabinet dimesions are roughly 18" 12"
>14". And your right I think parts express will be my choice when and
>if I can find the spl rating I need. Any further info is always
>appreciated!
>

You must also match up the driver with cabinet size via a program
or advice. Closed or ported is also information about the driver that is necessary
to determine the box requirment.

greg

Archived from groups: rec.audio.tech (More info?)

In article <1127424391.210536.222840@g14g2000cwa.googlegroups.com>, levi001@earthlink.net wrote:
>Greg I am wondering If you can point me in the direction of such a
>software program, I used the one on the Parts Express but it seemed
>pretty basic. If there is somthing out there a little more in depth I
>that would help a lot. PS the cabinets are ported, and again thanks
>for your help.
>

I have always used an old program here, DOS based. Perhaps someone can give you
a more modern one.

greg