Integrated amp for Thiel 3.7's
Hi @georgehifi : I have barely seen any amps mention the power rating at 2 Ohms.Yes many Mosfets and Class-D can double from 8ohm to 4ohm, but **** themselves severely into 2ohms, and either can’t increase at all from the 4ohm figure or actually go backwards, or worse still, blow or shut down. Oh and forget about tubes altogether trying to do this. They typically say something like “... stable at 2 Ohms”Yes that’s a bit of a smoke screen, as even a 30w 1980’s NAD 32020 integrated is stable into 2ohms, just means it won’t oscillate or blow up, doesn’t mean at all that it can drive a speaker that’s 2ohms. Cheers George |
pgastone OP Don’t listen to those just saying get this or that, because "it’s stable into 2ohms". There's more to it, there no use just saying an amp that stable at 2ohms will do, as a old 80’s NAD3020 Integrated is stable at 2ohms, and it’s got no chance of driving the Thiel 3.7’s. Yes you need an amp that comfortable at 2ohms, but also one that can deliver big current right down to 2ohms and not sag. And the way to tell is, one that can keep close to doubling it’s wattage from 8ohm to 4ohm then 4ohm to 2ohm. then you’ll have the ideal amp to get the best from these types of speakers. Cheers George |
pgastone OP
Like I said above, the amp for these needs current delivery down to 2ohms, I just posted up an integrated that would do, but it's too new for there to be any used ones. But it does have a dac and phono stge in it. https://forum.audiogon.com/discussions/mark-levinson-integrated-powerhouse-with-all-the-bling Cheers George |
pgastone With this kind of load, especially around the low bass with the added -phase angle, to get the VERY BEST out of these magic speakers, if you have the funds and because they are 91db efficient you need an integrated like the Gryphon Diablo 120 or the 300 but that maybe too expensive that can handle 2ohm or sub 2ohm loads continuously, and be comfortable doing it. The 300 can do this 2 x 300W (8 ohms), 2 x 600W (4 ohms), 2 x 950W (2 ohms) So the 120 should do half those figures which is still plenty for you. https://gryphon-audio.dk/produkt-kategori/integrated-amplifiers/ https://www.stereophile.com/images/archivesart/1208T37fig1.jpg Cheers George |
