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Grizzog

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Posts posted by Grizzog

    If RF7 is 100%, what is RF82II / RP280F?

    in General Klipsch Info

    Posted

    I owned the 280s and the 7ii.

     

    At full retail on both speakers, it would be tough to justify the 7s. They are better, for sure, but ~$2k better...not so sure about that. The two sets are surprisingly similar. The 7s are a bit fuller, have more bass, and have less piercing highs at high levels. The 280s are fantastic speakers, especially for the price. The 7s are great too, but I personally wouldn't make the jump if you're talking full retail.

    • Like 1

    Recreating an orchestra experience

    in Lounge

    Posted

     

    Had some time to myself today, so I decided to listen to Beethoven's 9th at true to life levels.

     

    Near front row, there will be instantaneous peaks of 105db for a full orchestra.

     

    I've got Chorus IIs with a 120 watt per channel amp.

     

    Now, my room isn't that big - 14 x 21 and I sit just 9 or so feet back from the speakers.

     

    In this environment the Chorus had no issues whatsoever hitting the 105 peaks (104.4 to be exact, but .6db makes little difference). If we take the Chorus' 101db sensitivity, it should be around 20 watts peak at my listening position to hit 105. Realistically, with room gain and reflections it's probably more around 8-10 watts.

     

    I've seen a lot on this forum about 500+ watt amps driving these speakers. I'm just wondering what size rooms people here have and what levels they are trying to achieve.

     

    PWK wanted to create an orchestra at live levels in the home and said what the world needed was a good 5 watt amp. 5 watts seems sufficient for the Khorn. The Chorus, being 4db down, need a bit over double the power. At 9 feet back, the Khorns need about 8 watts to get to 105. Even at ~26 feet back, the Chorus would need ~170 watts to hit 105, the Khorns somewhere around 64. And these are instantaneous power numbers, not RMS.

     

    (My numbers are also based on a single speaker. In theory, a stereo pair would add 3db to the numbers, so the power could be halved.)

     

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