bmontani
Welcome! Good to see you again. Nice upgrade path CS 2.3 to CS 3.7 loudspeakers. What other gear is in your System?
Happy Listening!
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- 13233 posts total
@unsound, turns out you were right when stating that
Even though rated to be 'stable for musical transients' at 2 ohms, the PS Audio GCA 250 does not seem to really enjoy powering the Thiel 2.4. It does offer really incredible dynamics and microdetail, but it also seems to exaggerate highs when asked to reproduce something like a piano sonata at somewhat higher volumes. I'll search the thread for other amplifier suggestions (: Anyone who has good experience with amps that excel at reproducing orchestral dynamics on the 2.4, feel free to chime in!
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I've been very happy driving my CS 2.4 speakers with a Coda CSiB v1 integrated amp. The Coda doubles down as you halve the impedance. The CSiB is for all intents and purposes a CODA 8 basic amp with an integrated line stage. Prior to the Coda I had a Bryston 3Bst. The 3Bst together with a Bryston preamp did a nice job of it, but the Coda was a big step up. As per my handle, I'm a jazz guy, but an audiophile buddy who is into Classical gave my rig a test run and was very impressed with it.
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@dickieboy , Ah, that's a bit different. And with that I agree. Even here on Audiogon it's often over generalized that all Thiels are demanding of amplifiers. The CS 1's 1.2's, 2's, 3's and 3.5's all had impedances over 4 Ohms (though the CS 3's and 3.5's did have the eq demands as well). Look at this rather benign impedance plot: |
@lars888888 , I suggest limiting your search for amps that are actually spec'd to 2 Ohm loads. If an amp is truly capable, the manufactures are likey to brag about it. I'd avoid amps from manufactures that rely on ancedotal marketing. If the amp is truly up to the task, let them put it in writting. Some (but not all !) amps from Krell, Levinson, and Threshold amongst a handful of others could qualify. If looking at some older models; I'd look for amplifiers that have been recently recapped by the manufacturer or manufacturer endorsed tech. These amps are typically heavy and costly to ship so having had this done recently could be prudent. Power amps tend to work better than integrateds for speakers such as the CS 2.4's, . As Intergrateds often are less adept at lower impedances and/or are less richly biased than the power amp offerings |
- 13233 posts total