Well on paper it looks like they would perform very well with a good powerful (150-200watts) and clean musical sounding solid state amplifier. Although tubes are not out of the question here, so here again it needs to be a amp of at least 50-75 watts per side of magical tube power and very musical and clean electronics must be used.
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From Stereophile’s measurements section of their review…
The SourcePoint 8's specified sensitivity is 87dB/2.83V/m; my B-weighted estimate was the same. The SourcePoint 8's nominal impedance is specified as 8 ohms, with a minimum value of 6.4 ohms. I measured the speaker's impedance magnitude and phase with Dayton Audio's DATS V2 system, but for consistency with Stereophile's presentation of impedance graphs for the past 33 years, I created fig.1 with the Audio Precision System One software. The speaker's impedance magnitude (solid trace) is greater than 8 ohms for almost all the audioband, dropping to 7.47 ohms at 120Hz. If this speaker is used with tube amplifiers, the significantly higher impedance in the treble compared with that in the midrange will tilt up the high frequencies. With the high average impedance, the equivalent peak dissipation resistance, or EPDR (footnote 1), is generally greater than 4 ohms, though it does drop below that magnitude between 197Hz and 341Hz, with a minimum value of 3.83 ohms at 242Hz. Even so, the SourcePoint 8 is an easy load for an amplifier.
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It's an easy load, just not very loud.
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Thanks guys..I appreciate the comments. I've read the reviews and seen the numbers, but that doesn't always tell the whole story. That's why I'm hoping to hear from someone who has actually heard the speakers in situ with a tube amp.
As for loudness, in my current set up the volume pot is at less than half and it's more than I can handle...I can't imagine volume would be an issue with a push-pull tube amp in the 30+ watt range, at least for the way I listen.
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If you listen at low decibels (many of us do), then a normal 40-50 wpc push-pull tube amp should do you well. Most advisors (dealers) assume you will want the ability to turn it up really loud when they tell yo to buy a 300-500 wpc amp.
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