Critic's Corner

RE: High end audio = musical accuracy, you must be kidding!

83.84.178.82

In Reply to: RE: High end audio = musical accuracy, you must be kidding! posted by morricab on January 31, 2008 at 04:24:18

>They have at the very least switch mode power supplies<

So from a mere description you are able to establish what type of amp they are using. Hats off! The German review speaks of cascaded (or is it stepped?) supply voltage, signal independent quiescent current, convection cooling. No mention o switch mode power supply. The transformer is a big 1200 VA.

Maybe one day I ask the designer.

>As you can also see from the maximum SPL, the spec of 1% at 123db is misleading.<

This spec is averaged over the range 100 Hz - 6 kHz.

>As you can see even at 18Hz and 106db the Wilson X1 has lower distortion than your speaker at 60Hz and 100db. At the same frequency its a joke! The Wilson is -50db at 106db and your speaker is only an audible -20db!!<

1. The S'phile measurements don't indicate at which distance it was measured, so I presume it was at 1 m. The measurements for the O500C were done at 2.1 m.

2. The figures in detail: given the fact that Wilson is measured at 96 dB/1m and mine at 100 dB/2.1m a meaningful comparison is not possible.

3. Given the fact that the O500C do NOT deliver 20 Hz, let alone 18, no data are available for frequencies below 30 Hz.

4. At 18 Hz and 106 dB/1m the Wilson produce -40 k2, mine at 60 Hz and 100 dB/2.1 m (which is roughly the same under anechoic conditions) produce - 48 k2.

How much do the Wilson cost, $100K? Shouldn't they be better, at least in some disciplines, than speakers that cost about a 1/3? Further, how do these figure relate to thresholds of detection?

>The frequency response, in-room and NOT anechoic, is +- 2.5db from 20Hz to 13 or so Khz<

The graph on the linked page says, "anechoic response on tweeter axis at 45" (solid curve)" and the curve is flat ± 3.5 dB as compared to ± 1.5 dB for mine.

>>Where do my speakers have wide dispersion?<<

>Its right there in the measurements by K&H!! 30 degrees at high frequency is pretty wide actually.<

I'm not teaching you how to read such graphs. The central question is NOT wide or narrow dispersion, but how even/smooth the off-axis curves are.

Klaus

Follow Ups:

RE: High end audio = musical accuracy, you must be kidding! - morricab 09:43:46 01/31/08 (11)
- This was the last post of yours I have read and replied to! - KlausR. 10:15:38 01/31/08 (10)
  - RE: This was the last post of yours I have read and replied to! - morricab 14:45:41 01/31/08 (8)
    - RE: Klaus I have stayed very factual - KlausR. 07:47:49 02/01/08 (7)
      - RE: Klaus I have stayed very factual - morricab 09:29:57 02/01/08 (6)
        
        Rubbish etc. - KlausR. 10:51:09 02/01/08 (5)
        
        RE: Rubbish etc. - morricab 10:36:19 02/03/08 (4)
        
        It is apples and oranges! - KlausR. 02:29:11 02/05/08 (3)
        
        RE: It is apples and oranges! - morricab 04:41:46 02/05/08 (2)
        
        RE:Thus your claim of inaccuracy has been debunked. - KlausR. 07:51:43 02/09/08 (1)
        
        RE:Thus your claim of inaccuracy has been debunked. - morricab 00:39:14 02/10/08 (0)
  - That rabbit's dynamite!! Would it help to confuse it more if we ran away? - robert young 10:30:14 01/31/08 (0)

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