I think it's important to understand that most solid state amps are built around an optimum "tap". I have experience with the old Krells. I had an engineer at Krell explain this to me years ago. He explained that Krells were built around a 2 ohm tap. This means that a 400 watt Krell will deliver 1600 watts at 2 ohms. Modern Mac amps have much larger power supplies and better heat sinking but it doesn't change the fact that running a low impedance speaker with a minimum impedance of say 2 ohms, will over a period of years significantly reduce the life of the amp.
For example, a Wilson Sasha DAW goes for 39K. An appropriate amp for this price speaker would be around 20K, which would be a MC 611. Or a SS amp built around a 2 ohm tap. I totally understand that many will disagree but I am a proponent of running the SS amp so that under most conditions it is under stressed operating under optimum conditions, i.e. no impedance mismatch.
However, if you 462 is always running cool, well, who can argue with that??
Best
Charles
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Charles Updated System: Wilson McIntosh Audioquest
Amps: McIntosh MC3500MKII (2); McIntosh MC1.25KW (2); MC2.1KW An (1)
Preamp: C-12000 An
Sources: MCD12000 An; MVP881; MVP851; MR87; Marantz 510LV; ASUS laptop
Speakers: Wilson Audio Specialties Chronosonic XVX
Sub-woofer: Wilson Audio Specialties Thor’s Hammer (1); Wilson ActivXO Stereo Electronic Crossover
Cables main system: Audioquest WEL Signature speaker cables; balanced IC (preamp to main amps); WEL Signature digital coaxial cable for MVP 881/MCD12000; Audioquest Diamond optical (1) for tuner, (1) for MVP 851 DVD player, and (1) for LD player for total of (3); Audioquest Diamond USB cable; Dragon power cords (5 HC cords and 3 source cords for total of 8); Thunder HC power cord for MR87 tuner
Cables subwoofer system: Audioquest Redwood speaker cable (1); Wolf balanced subwoofer IC; Wind balanced IC from preamp to ActivXO; Hurricane HC (3); Hurricane Source (1); Dragon HC (1) power cords
Power conditioners: Audioquest Niagara 7000 (1) and Niagara 5000 (3); (4) dedicated 20-amp lines.
Isolation: Wilson Pedestals; Bassocontinuo McIntosh Ultra Feet; X-material plinth
Cabinet: Double Custom Woodwork & Design (CWD)
Acoustic Treatments: Room and Echo Tunes
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