Infinity RSa Woofer's Missing - Any Suggestions

doctorolds

doctorolds

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Well folks, I recently picked up a pair of Infinity RSa Speakers for free, but need work. The cabinets and Emit tweeters are good, but the original "490780" woofers were replaced with a pair of G&S woofers. I realize that I should replace them with original woofers, but locating a pair at a reasonable price is not going so good (WTB in BT). Any compatible substitute suggestions are welcomed.

Now I need to figure out something to do with the G&S woofers, model GE 7010R.
I have no knowledge of the speaker manufacturer G&S which was for car audio, but I did receive the brochure from 1986 which does list some of the driver specifications which I attached. Besides trying them in the RSa cabinets I thought I may be able to build a couple of subwoofers with them possibly. Another thought was to use them with my Heresies to boost their lack of bass if I can determine the best way to accomplish it. Maybe I'll be able to use a CV 10" red surround's to retain the look, but not sure they'll be stiff enough.

Any suggestions or information is appreciated as always.

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Hey man,

Beefy woofers there pally boy! I hope those surrounds work, they look really cool.

Biggles
 
Hey Big's, they definitely are pretty beefy!
I will figure out something to do with them for sure, maybe some EconoWave's. :rolleyes:
 
They show up on ebay every so often.
Pretty sure the original RSa woofer was the gray, bullet nosed 10" woofer, but clear cone, bullet nose 10" woofers might make a reasonable substitute.
 
I believe that you are correct @goodolpg. A complete pair for local pickup at $200, and a clear set of woofers for about $260 with shipping. I personally can't justify that kind of money to repair them.
 
I totally understand. This thread could help others with a similar need. When you can cast a wider net (other options) it sometimes gets quicker results.
 
By wider net I meant the clear cones should be a drop in replacement for the gray cones. So that would add 2, 3, 4 different driver numbers.
You said you had BT covered.
You could set up alerts for ebay.
 
The crossover frequency on the RSa was 3000Hz. Those woofers you have cover the range. Why not put on a generic surround for a few bucks and give them a try. They cost you nothing, so why not play with them. Maybe you can paint over the lightning bolt.
 
Like he ^ said, could just refoam the ones you have. Since they may be automotive speakers they could be 4 ohms, which should be a good match since the RSa tech sheet says they are 4 ohm speakers. It would be a good way to learn/practice refoaming and could be done for not very much. Would give you tunes for cheap and you could listen until you find OEM drivers if you still wanted to go that route.
 
Thank you gentleman, I agree with your thoughts. Not worried about the lightning bolt, lol. The G&S woofers are 8 ohm, so the result of testing may, or may not work. I have more than enough experience with all aspects of speaker repair other than designing them. I'm hoping to locate a correct replacement, or at least close. I'm probably going to at least try what I have unless I get lucky. I also hope to get some ideas on what to with the G&S woofers if they don't work out with the RSa Woofer attempt.
 
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Thanks for the links @HTHMAN, but I have a friend in Tennessee that I get my surround's from. I'll get the new surround's put on and see where things are at.
 
doctorolds said:
Thank you gentleman, I agree with your thoughts. Not worried about the lightning bolt, lol. The G&S woofers are 8 ohm, so the result of testing may, or may not work. I have more than enough experience with all aspects of speaker repair other than designing them. I'm hoping to locate a correct replacement, or at least close. I'm probably going to at least try what I have unless I get lucky. I also hope to get some ideas on what to do if they don't work out with the RSa Woofer attempt.
Click to expand...
As long as you do not change the impedance of the tweeter, I do not believe changing the woofer will change the crossover point. You may have to replace the inducer if the woofer rolls off too early or too late. It is really sensitive, so bass will not be a problem. I had one set of speaker once that had replacement woofers. They sounded good enough, but it was not original so I sold them cheap to a very happy buyer.
 
Problem solved, I'd like to give @goodolpg a big thank you for locating a pair of woofers for me. They are labeled "490780", which from my research appear to be original. When it's all said and done I will have about $100 into them, not including labor of course. Not the deal of the year, but I hate to part things out.

I guess I'll start a new thread to get ideas on what to do with the G&S woofers.

A bit more information on Infinity woofers can be found in the following thread.

http://audiokarma.org/forums/index.php?threads/infinity-woofers.387386/
 
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Yes sir, that is exactly what this forum is about. I try to provide help when I believe I have pertinent information another member can benefit from. I have received plenty of help from members by asking or just searching through threads, I truly appreciate it!
 
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I had no previous knowledge of an
isobaric subwoofer so I did a bit of research.
Half the normal cabinet size required and half as sensitive, correct? What's the real benefit?

I'd really like to build two cabinets to place under my Klipsch Heresy's or any other speaker needing bass enhancement. I could run them off a second speaker output, but would need to provide some type of attenuating device. They have a sensitivity of 98db, pretty high in my opinion. Just a thought, maybe I'll come up with a better idea. :dunno:
 
doctorolds said:
I had no previous knowledge of an
isobaric subwoofer so I did a bit of research.
Half the normal cabinet size required and half as sensitive, correct? What's the real benefit?

I'd really like to build two cabinets to place under my Klipsch Heresy's
Click to expand...
Size is the biggest advantage and just an interesting design, Has been used by Sunfire and Bose to make small boxes. Sensitivity is not reduced if you wire in parallel but it is now 4 ohms, so.....

I once had a pair of 8" Rockwood-Fosgate drivers I toyed with the idea because of the small box. I mentioned on the forum and someone offered to buy the drivers. Project over.

I like the idea of a supplemental driver. You could build a simple low level crossover with a level control.
 
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