Originally Posted by amatot
Performance & Reliablity
how about adding covering own's ass to that list
amatot - you raise a point, but....(always that)
1. even professional reviewers have run 4 ohm speakers.
2. Even B&O's Icepower division rates their OWN multichannel amp boards (the same ones used by Pioneer in the SC-09, SC-07, SC-27, SC-37, Wyred4Sound's mc amps, D-Sonics amps, and many more companies using Ice amps) at 4 ohms. If ALL of them AND the mfg. who actually designs & build them for everyone, including Pioneer, have no problem stating they are good for 4 ohms, why should you presume to say we shouldn't accept that? Icepower should know their own product
you are free to your own opinion, of course. But...(there it is again) I'm one of the very 1st Pioneer SC owners on this forum, I run 85 db efficiency 4 ohm rated Magnepans and my SC-09 has NEVER shut down. In fact, on 1 movie recently it produced enough juice to blow my Magnepan center's 3 amp tweeter protection fuse. The SC-09 never skipped a beat. I received it in May 2008 and it's been in use ever since, nearly 3.5 yrs. 1.5 yrs past the warranty.
There are a number of SC owners also using Maggies, and not only are they 4 ohm but they are notorious for being power hungry and needing lots of current to drive them best.
It's my choice but I take all Pioneer's apparent "concern" about 4 ohm capability with a grain of salt. And I have no desire to see mine in the shop.
Hell, I've been running an all Maggie setup with 2 previous Pioneer's class A/B flagships, 49 & 59txi, for years & never once had a problem. Never activated their protection circuits either
Believe what you will, I'll take the amp designer & builder's word over a company trying to cover their butt for warranty reasons any day. But that is my choice. I don't consider it a roll of the dice. I consider it common sense, having spent time reading & learning about the technology's capabilities.
3. Home Theater, UltimateAV, European review sites, have ALL bench tested these models at 4 ohms and they pass with flying colors, even at 5 channels driven at once.