RS-IIIa, 4, 5, and 6 ad brochure w/ lots of good info

Discussion in 'Infinity Loudspeakers' started by Seppo, Apr 28, 2014.

  1. Seppo

    Seppo Work in progress Subscriber

    Messages:
    1,218
    Location:
    Ontario, Canada
    I just bought a beautiful 4-page 1981 Infinity ad brochure from eBay, featuring RS-IIIa, 4, 5, and 6 speakers. It has a couple of nice photos of the speakers, but moreover this is an old school ad/brochure where the selling is done via talking tech and physics. In other words, lots of good info on the design principles and physics behind these speakers.

    Below a PDF scan of the brochure. I had to put it in two parts due to size limitations, sorry.
     

    Attached Files:

     

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  2. Livin4

    Livin4 Well-Known Member

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    Utah
    Nice :thmbsp: Thank you!
     
  3. dddirtman

    dddirtman New Member

    Messages:
    34
    kool thank u
     
  4. VWGUY

    VWGUY Active Member

    Messages:
    466
    Location:
    Arizona
    Thanks for sharing! Much Appreciated
     
  5. goodolpg

    goodolpg Just an old fart trying to help. Subscriber

    By any chance did that brochure come from a seller in Turkey?
    If so, how was transaction?
     
  6. Seppo

    Seppo Work in progress Subscriber

    Messages:
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    No, this was a US seller, 'out4fun72'. Flawless transaction.

    If anyone is interested in ads and brochures like this, 'effgjm' has a huge collection and is very reliable/good. I have bought a few brochures from him earlier.

    I have no affiliation w/ either of the above people.
     

     

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  7. goodolpg

    goodolpg Just an old fart trying to help. Subscriber

    Thanks for the reply Seppo.
    Glad you are happy with your purchase.
    There's a seller in Turkey who has some seldom seen (by me at least) Infinity brochures.
    I've been hesitant to purchase from them due to the location and they are a bit pricey.
    Could be totally legit.
    Would like to hear if anyone has dealt with them.
     
  8. ksweezy

    ksweezy New Member

    Messages:
    32
    Thank you!
     
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  9. haggy38

    haggy38 Active Member

    Messages:
    168
    Thanks for sharing, i really love my RS4B



    image1.JPG
     
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  10. McBru6177

    McBru6177 AK Subscriber Subscriber

    Messages:
    1,426
    Location:
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    Thanks Seppo. This brochure answered many of my questions about the RS-5 speakers I picked up last year. The included stands that came with them look to be almost identical in style and height to the stand shown on the RS-5 on page 1 of the brochure.
     
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  11. bluescat

    bluescat Well-Known Member

    Messages:
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    Location:
    WV
    Thanks op, for posting!! Now a question: Does anyone have any thoughts on why they use the foam on the larger (RSIIIA/B) and not on the shorter (4,5,& 6) speakers. I have read about "diffraction" here on AK and elsewhere but the cabinet design and drivers are pretty much identical except for the height, as far as I can tell. I would think that if the foam is necessary on the taller speakers, it would also be necessary on the shorter speakers.
     

     

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  12. Tedrick

    Tedrick Infinity-phile Subscriber

    Messages:
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    The IIIa/b is wider than the other models down the line, so I'm guessing that the additional surface area resulted in a enough smearing of the mid/treble frequencies to negativity impact the sound.
     
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  13. bluescat

    bluescat Well-Known Member

    Messages:
    507
    Location:
    WV
    Good point, hadn't, considered that. Thank's
     
  14. 7.62

    7.62 Gearhead Subscriber

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    Thanks for posting, guess I need to start looking myself. That would really complete my 90's package.
     
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  15. InfinityGold

    InfinityGold New Member

    Messages:
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    Location:
    Los Angeles, California
    INFINITY RSlll RS4B RS6B :banana::rockon::music: Reference Series 2018 Brochure !!!!!

    ED7B93AB-5AA6-4405-A1AE-C0B5228EDE75.jpeg
     
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