Radio Shack 1272, anyone? - Page 2 - diyAudio
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Old 15th October 2006, 05:07 PM   #11
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i bought 'em on sale for 15 bux the pair and have had em sitting ever since, as i was unable to find anything that would tell me what kind of enclosure to use with them. i might heave em over the fence
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Old 15th October 2006, 05:22 PM   #12
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Oh, don't do that. Just don't expect them to be much use for hifi purposes. Me, I'd slap them on a baffle & use them for background listening in the garage or something like that. They'll be fine for that sort of thing.
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Old 15th October 2006, 05:33 PM   #13
GM is offline GM  United States
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Greets!

If you want to play with them, then assuming yours has a similar response they could be front horn loaded, though only as a ~110 - 2 kHz BW unit, so think big. For sure it's underdamped BP response begs the Q of what was it optimized for? Cheap PA horn?

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Old 16th October 2006, 02:45 AM   #14
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if i'm not mistaken, that particular RS 6 inch was made like an oversized boombox speaker, so its capabilities suggest it was made for large boombox replacement or PA use.
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Old 21st October 2006, 04:29 PM   #15
Slam630 is offline Slam630  United States
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Hi everybody. Ive been lurking here and y'all have inspired me to make my own speakers. I decided to use open baffle for ease of construction. I was thinking about using the Visatons, but I found a good deal on the RS 1272D and decided to try them first. I mounted them in a diaper wipe box, which was a great baffle with built in wings. I use these speakers as my computer speakers with the monitor acting as a baffle too.

I am pretty pleased with how they sound. I have never owned a full range open baffle speaker before so I cant compare them to anything, but to my ears they sound very nice. The bass is a little light but it is good enough for me. I am a semi-pro bass player and listen to mostly reggae as well as world music, soul and funk and the bass has been fine so far. Sometimes some of the reggae can be a bit too much for the speaker but usually it is fine.

For the under $100 I have spent these speakers sound great.
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Old 21st October 2006, 11:37 PM   #16
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Good man! Glad you enjoy them, and welcome to the wonderful world of DIY. You'll never go back.
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Old 22nd October 2006, 04:25 AM   #17
Slam630 is offline Slam630  United States
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Here is a pic of the diaper wipe box baffle. These worked surprisingly well. I have since put the drivers on birch baffles with wings.

Click the image to open in full size.
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Old 22nd October 2006, 04:57 AM   #18
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you might want to put a little more distance between the Speakers and your iMac G5. The Hard Drive might not like having an un-sheilded Magnet so close.
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Old 22nd October 2006, 04:00 PM   #19
Slam630 is offline Slam630  United States
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Thanks Scottmoose. I dont think I will ever buy speakers again.

Thanks for the tip Scioneer. I think I will add another wing to the mac side of the baffle. Should sound better with a bigger baffle right?

After reading on the web I'm not sure that the speaker will affect the hard drive. I read that a changing magnetic field will erase data but a constant field, like that in a speaker will not damage. I think I will still add that extra wing just to ge safe.

Does anybody have any specs on the 1272d? I can't find much information about these speakers.
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Old 24th October 2006, 05:06 AM   #20
GM is offline GM  United States
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Greets!

FWIW, the one's I have plot ~ identical on an old dbx RTA as a 40-1271C, though they sound different, which means OB or aperiodic. BTW, they both benefit from the $0.98 tweak and mass loading the driver to the baffle as well as epoxying the motor to the frame and damping the basket.

http://web.archive.org/web/200206282...wther/mods.htm

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