realistic optimus T-200 speakers - Home Theater Forum and Systems - HomeTheaterShack.com

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post #1 of 14 Old 10-10-10, 10:09 PM Thread Starter
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realistic optimus T-200 speakers

These speakers have dual 10" woofers in each tower and they are rated at 16 ohm each woofer. I am missing two woffers. Do any of you know were I can find replacements?

I picked them up for free and they are in the retale boxes with all packing. they look mint but two of the drivers were missing. I replaced the foam on the two woofers i do have. I am guessing someone removed them to see about having them refoamed or someone used them in a car subwoofer box. It's a shame that the 2 woofers are missing since they are like mint with all packing.
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post #2 of 14 Old 10-11-10, 08:14 AM
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Re: realistic optimus T-200 speakers



Radio Shack used to suggest the 970-0517 as a replacement, but it is discontinued.

http://www.parts-express.com/pe/show...number=290-088 These are a likely replacement but for the best sound you'ld have to replace all four.

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post #3 of 14 Old 10-11-10, 12:55 PM Thread Starter
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Re: realistic optimus T-200 speakers

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Radio Shack used to suggest the 970-0517 as a replacement, but it is discontinued.

http://www.parts-express.com/pe/show...number=290-088 These are a likely replacement but for the best sound you'ld have to replace all four.
The issue with them is they are rated at 8 ohm. so if they are run side by side it would be a little less then a 4 ohm load. I was thinking if i could find 16 ohm replacements I could just buy two woofers. I wish i could find stock ones on ebay that someone is parting out. but i ws thinking i could remove one stock woofer from the one speaker to the other then just put one new 16 ohm 10" woofer in each speaker. The only way to use the 8 ohm speaker you showed me is if i wouldnt hook up the one woofer in each speaker and used the stock woofers as a pasive reflextor.
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post #4 of 14 Old 10-11-10, 02:45 PM
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Re: realistic optimus T-200 speakers

Ah, good points. Two 4 Ohm woofers could be run in series for 8 Ohms. Relatively inexpensive 10" 16 Ohm woofers that may be an adequate replacement seem to be rare. It would be nice to have T/S parameters on those stock woofers. Perhaps you could send one to someone who could test them for those parameters.

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post #5 of 14 Old 10-11-10, 04:29 PM
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Re: realistic optimus T-200 speakers

Buy a 8 ohm DVC 10" and wire them in parallel for 16 ohms
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post #6 of 14 Old 10-11-10, 04:36 PM Thread Starter
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Re: realistic optimus T-200 speakers

Quote:
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Buy a 8 ohm DVC 10" and wire them in parallel for 16 ohms
it would come out to a little less then a 4 ohm load doing it this way.


it used to use two 16 ohm run is parallel so it would be a little less then a 8 ohm load. when you run two 8 ohm woofers in series then it would come to 16 Ohm. parallel runs side by side. series runs then in a row adding up the ohms.
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post #7 of 14 Old 10-11-10, 04:40 PM Thread Starter
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Re: realistic optimus T-200 speakers

I was looking and i can find 10" 16 ohm guitar speakers. I wonder how they would sound for a stereo.

http://www.parts-express.com/pe/show...number=290-478
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post #8 of 14 Old 10-11-10, 07:35 PM
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Re: realistic optimus T-200 speakers

Maybe something like this will work. If you wire both coils in series on each woofer you'll get the 16ohms per woofer that you need, it's a matter of whether they'll work for your particular enclosures and crossovers. Can you take some good rough estimates of the internal dimensions of the cabinets and tell us whether they're ported or not, and the dimension of the ports?
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post #9 of 14 Old 10-11-10, 07:44 PM Thread Starter
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Re: realistic optimus T-200 speakers

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Maybe something like this will work. If you wire both coils in series on each woofer you'll get the 16ohms per woofer that you need, it's a matter of whether they'll work for your particular enclosures and crossovers. Can you take some good rough estimates of the internal dimensions of the cabinets and tell us whether they're ported or not, and the dimension of the ports?
Thats an idea. If i run both voice coils in series and then run both woofers in parallel. the price is better on this speaker.
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post #10 of 14 Old 10-11-10, 09:43 PM Thread Starter
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Re: realistic optimus T-200 speakers

If any of you are wondering what these old speakers look like. Look at page 18 of the 1979 catlog. They cost more then the mach one speakers.

http://www.radioshackcatalogs.com/catalogs/1979_small/


The catalogs makes me laugh. Look at the top of page 18. Purest audio for the audio purist.
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