Originally Posted by sf2explus
Hi im looking to put together my first hifi i will be buying coming march. I am on a budget i was thinking yamaha as500 or onkyo a9155
with Wharefedale 10.1 (£150) or Dali zensor 1 (£200)
My cheapest option would be onkyo amp which costs around £130 but has 50 watts per chanel 8 ohms with wharfedale
The compares with almost every other amp or AVR with what appears to be a higher power rating which puts out 90 or 100 wpc.
100 wpc is only 3 dB more power than 50 wpc which in a casual comparison is just about a noticeable difference. Its audible, but not dramatic. It would take a 500 wpc integrated amp (most of which are made of unobtainium) to sound twice as loud as 50 wpc.
But I'm thinking shall i go with the Yamaha with Wharfedale or Yamaha with Dali zensor 1.
I'm not sure if the onkyo can power the speakers both speakers are 100 watts.
Speaker power ratings are like the ratings on a circuit breaker in your house. If you have a 15 amp circuit breaker and an appliance that only draws 7 amps no harm done. If have a speaker rated at 100 watts max, and only a 50 watt power amp, no harm done.
any good ideas. i will add the cd player later on and use my ps3 for when i put it together.
You have several approaches that can yield greater loudness with the Onkyo amp that you are looking at. Or, you can take my advice and get a 5.1 AVR instead, probably for less money and still at least as good sound. While every AVR I look at seems to have a bell or whistle that seems useless, they generally have some useful features like digital inputs, bass management, and outputs for subwoofers and center channel speakers that can facilitate useful upgrades to a stereo music system.
(1) Speakers with higher efficiency - for example the Infinity Primus 163 is also highly reviewed by SP (predecessor P162 - about the same), on sale at Amazon for a very attractive price, and has 90 dB/W sensitivity which is only 3-4 dB more output, but it is like doubling the power output of your amp. I have a couple of pair of these and they sound really good, particularly with a good subwoofer.
(2) Use an Amp with true bass management (AKA an AVR) and add a good sub. The sub will lead to a dramatic decrease in the amount of amp and main speaker power that it takes to get satisfying bass and good dynamics.