Now that I’ve seen the impedance graph of the CS5i, I would say forget the WFS and go with the JC1’s. "Sensitivity: 87dB/2.83V/1m (equivalent to around 82dB/W/m, given the low impedance)". I didn’t realize the CS5i is so low in impedance in the bass and lower bass, below 2ohms, Class D will not drive this as well as the JC1’s http://www.stereophile.com/content/thiel-cs5-loudspeaker-measurements-0#TU8p8MtO6awD64KO.97 Cheers George |
I don't think the JC1's will have any problems with a 2 Ohm impedance swing. "With continuous drive, the Parasound clipped at 545W into 8 ohms (27.4dBW)—way above the specified 400W. ("Clipping" is defined, as usual, as the power level where the measured THD figure reaches 1%, and is shown in fig.7 as the horizontal magenta line.) With a low-duty-cycle 1kHz toneburst more representative of music, the Halo was a powerhouse. Its clipping power increased by 0.3dB into 8 ohms, reaching 586.5W at 1% THD (27.7dBW, fig.7, black trace), with 1154W available into 4 ohms (27.6dBW, blue), 2255W into 2 ohms (27.5W, green), and no less than 4.2kW into 1 ohm (27.2dBW, magenta). The latter is equivalent to an output current of 64.7A!" Read more at http://www.stereophile.com/content/parasound-halo-jc-1-monoblock-power-amplifier-measurements#GQwS4I... |
