confused with specs

Discussion in 'AV Receivers' started by Giob, Dec 15, 2004.

  1. Giob

    Giob Extra

    Feb 8, 2004
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    In doing research to shop for a receiver got me a little confused. I was looking at Yamaha RX-450. One spec sheet says: 6.1-Channel,750W Powerful Surround Sound (125W x 6) while another sheet (both are from the yahama site) says: 6.1-Channel, 510W Powerful Surround Sound (85W x 6).

    Same with the Onkyo TXSR-502. One says: "You¡¯ll enjoy crisp, clear sound with 75-watts of power running to each channel." While another one from onkyo says:

    Power Output
    Front L/R -> 115 W + 115 W (6 §Ù, 1 kHz, JEITA)
    Center -> 115 W (6 §Ù, 1 kHz, JEITA)
    Surround L/R -> 115 W + 115 W (6 §Ù, 1 kHz, JEITA)
    Surround Back -> 115 W (6 §Ù, 1 kHz, JEITA)
    Dynamic Power -> 160 W + 160 W (3 §Ù, Front)
    125 W + 125 W (4 §Ù, Front)
    85 W + 85 W (8 §Ù, Front)
    THD (Total Harmonic Distortion) .... 0.08 % (Rated Power)

    So which is the "truer" specs?

  2. FeisalK

    FeisalK Screenwriter

    May 1, 2003
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    chances are the lower Watts one is more accurate [​IMG]

    Higher one is usually into 6Ω and measured at 1KHz which means if you listen to a 1KHz sine wave all the time, you should grab that receiver.

    IMO the most believable specs will/should say

    xxxWatts into 8Ω (or 6Ω ) 20Hz - 20KHz, all channels driven

    Of course they wont say this - you'll probably see 20W or something not much more... [​IMG]

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