Polk Efficiency

marcb515
marcb515 Posts: 8
edited October 2005 in Speakers
Please bear with meon this because I don't know if I'm asking the correct question, or asking the question correctly (LOL)

In looking at Polk and Klipsch speakers it appears that Klipsch speakers are more efficient, which I guess means a lower powered receiver (like mine) would have more trouble driving Polk speakers?

Why are Polk's (and others) less efficient? Wouldn't a manufacturer want to put out the most efficient speakers?

I'm not sure if my Onkyo TX-DS747 with 90W/Ch in stereo @8 Ohms (105W/Ch in stereo @6 Ohms) has enough power for Polk's 4 ohm speakers?

Not sure if I got my questions accross properly, as you can see I am somewhat confused on this.

Thanks you,
Best regards,....marc
Post edited by marcb515 on
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Comments

  • Dennis Gardner
    Dennis Gardner Posts: 4,861
    edited October 2005
    In looking at Polk and Klipsch speakers it appears that Klipsch speakers are more efficient, which I guess means a lower powered receiver would have more trouble driving them?

    You've got it backwards. High efficient means easy to drive with low power.
    HT Optoma HD25 LV on 80" DIY Screen, Anthem MRX 300 Receiver, Pioneer Elite BDP 51FD Polk CS350LS, Polk SDA1C, Polk FX300, Polk RT55, Dual EBS Adire Shiva 320watt tuned to 17hz, ICs-DIY Twisted Prs, Speaker-Raymond Cable

    2 Channel Thorens TD 318 Grado ZF1, SACD/CD Marantz 8260, Soundstream/Krell DAC1, Audio Mirror PP1, Odyssey Stratos, ADS L-1290, ICs-DIY Twisted , Speaker-Raymond Cable
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  • marcb515
    marcb515 Posts: 8
    edited October 2005
    Appreciate you setting me straight!!
    Best regards,....marc
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  • ND13
    ND13 Posts: 7,601
    edited October 2005
    Unless you're needing to drive the Polks to earbleed levels, you'll have enough power, though seperates with about 200 high current watts would be better of course. I didn't see you list the 4 ohm rating for the Onkyo, so I would find out whether or not it's 4 ohm stable before making any decisions.
    "SOME PEOPLE CALL ME MAURICE,
    CAUSE I SPEAK OF THE POMPITIOUS OF LOVE"
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  • BobMcG
    BobMcG Posts: 1,585
    edited October 2005
    marcb515 wrote:
    I'm not sure if my Onkyo TX-DS747 with 90W/Ch in stereo @8 Ohms (105W/Ch in stereo @6 Ohms) has enough power for Polk's 4 ohm speakers?

    Which Polk's are you referring to?

    BTW: Efficent doesn't equal accurate nor is it a reflection on sound quality.

    And: Any Polks I'm familar with are plenty efficent.

    And-2: Your recvr will have it's work cut out for it if you do use it to push a pair of 4ohm speakers from any manufacturer.
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  • Airplay355
    Airplay355 Posts: 4,298
    edited October 2005
    90 db...which most polks are, is considered the threshold for efficient speakers. just an fyi.

    it means that with 1 watt, at 1 meter, you can get the speaker to play 90 db. (db is decibels and a measure of how loud sound is)
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