Amplifier ... for the
electronics industry doesn't seem to want to talk about this, but
amplifiers and receivers can use an enormous amount of electricity.
with the trend toward more speakers in the room, often up to seven
speakers, the problem is magnified. Take for example, a good quality,
popular receiver, the Onkyo TX-NR609. On it's back panel, the power
rating is 6.2A (that's amps). Just multiply that by 120 (volts) to get
the consumption in watts... 744 watts. That's probably one of the
biggest electriciy hogs most people would own. And if you're trying to
be green, this is definitely moving in the wrong direction.
There's one amp on the market that really
stands out; it's also from Onkyo. While almost all amps and receivers
on the market are less than 50 percent efficient, this amp uses a
design called Class-D, that is typically between 80 and 90 percent
efficient (it depends a lot on the impedence of the speaker you hook up
to it). The amp is the Onkyo
(click on the "See price in cart" link to get the current price; these
are being heavily discounted).
I'd prefer this over just about all the the A/V receivers on the
market. Properly designed Class-D amps, like this one, have a very
sweet, non-fatiguing sound, that is really what most of us want, but is
often kind of elusive.
also puts you on track to get a system that will hold it's own with
systems costing several times more. Don't pay for seven channels of
amplification and seven speakers, get a good quality 2 channel amp and
2 two great speakers. You'll be astounded at how
good a set up like this can sound. Look at speaker brands like KEF,
B&W, Martin Logan, PSB and Monitor Audio. Paired to this Onkyo amp,
you should be able to enjoy music, and movies, for a decade or more,
without feeling the need to replace equipment.
think that arguably this could be considered the best amp in the world.
As a nation, we keep consuming more and more energy. we need to be
thinking about "less", less electricty. The power consumption of this
guy? A deliciously low 110 watts, or 15 percent of the Onkyo A/V
receiver mentined above.