stonecobbler...you came to the wrong place if you want folks to stop you from spending money on this hobby
I have the Thiel 2.4s and they are a very nice speaker. The one thing I would make sure you test out before you pull the trigger on the Thiel 3.6s is that your Sherbourne can drive them properly (not in terms power output to get them to play loud but int erms of current delivery so that you don't get tonal aberrations). The 3.6s are current hungry beasts, spending the entire frequency range (from 50 Hz on up) below 3 ohms as you can see from the impedance and phase graph below. See the Stereophile measurement link here:
Thiel CS3.6 loudspeaker Measurements | Stereophile.com
Quote from JA's measurement piece:
Quote:
The CS3.6's impedance magnitude and phase plot (fig.1) reveals a very low impedance value. The loudspeaker is under 3 ohms through most of the range, dropping to a minimum of 2.3 ohms at 3.6kHz (the cursor position). The low impedance value explains the CS3.6's need for the iron-fisted Mark Levinson No.23.5 to provide control in the bass; the CS3.6 would appear to be current-hungry. There is, however, a consistency to the impedance curve that makes the CS3.6 look much like a resistor to the amplifier, rather than an impedance that varies greatly with frequency. The phase angle—represented by the dashed line—is quite benign. The passive radiator tuning can be seen as the valley centered at 29Hz. Both the bass peaks are low in amplitude.
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I am a big fan of Thiel speakers but they can be ruthlessly revealing if partnered with less than stellar equipment so I hope you have had a chance to test out in your system with your gear. Here's Robert Harley's concluding remarks on the 3.6s from his 1995 review when he was still at Stereophile at the time:
Quote:
I can say without reservation that the Thiel CS3.6 is a remarkable loudspeaker. It is extraordinarily uncolored, providing a transparent picture-window view into the music. Its exemplary tonal balance, superb spatial presentation, and excellent dynamics combine to produce a compelling musical experience. Moreover, it is significantly more musical than earlier Thiel products, with a smoother treble balance and less aggressive presentation. The CS3.6 is a loudspeaker I could easily live with on a long-term basis. Not all listeners, however, will like the CS3.6's immediacy and high resolving power. This definitely isn't a loudspeaker for those who prefer a softer-than-life, or unfocused, perspective.
The CS3.6's primary shortcoming is a tendency to be ruthlessly revealing of imperfections in source and upstream electronics. The loudspeaker's high resolving power works as well on musical information as it does on such electronic artifacts as glare, grain, and hash. Careful selection of the highest-quality associated components is required to get the best out of the CS3.6. My only other caveat is that the prospective buyer should be aware of the CS3.6's potential for midbass fatness in some rooms and systems. Overall, however, I found little to criticize in the CS3.6.
The CS3.6 is not only a great loudspeaker, but a terrific bargain at $3900. It does many things well, and has no serious flaws. If I had $4000 to spend on loudspeakers, the CS3.6 would easily be my first choice. Indeed, it should be considered by those considering spending twice this amount—the CS3.6 is that good. What more can one say?
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