integrated watts or amp watts

+1. A compilation of the points made by Zd, Jmc, and Arnett regarding rating philosophy, design type, sound pressure/power relation. They all affect the value of a wattage rating regarding an amps ability to drive speakers. Room size and room dampening affect the the perceived loudness at the listening position relative to the sound pressure developed at the speakers.

A true 8 ohm speaker (not dropping much below 4 ohm across the frequency range) with a benign phase angle, with a sensitivity of 90+ ( which is moderately high by my assessment) should be well controlled by a 50 watt amp for use in home environment listening room.

Though I tend to agree with those who declare that one can’t have too much power for a speaker, I also agree that one can pay for too much power when considering amp quality characteristics and total system budget.

I own a BEL 1001 MK5. It is rated at 50 wpc into 8ohms, 100 wpc into 4 ohms and 200 wpc into 2 ohms. Though I know there are a few other 50 wpc amps on the market that are better at driving speakers, I believe there are far more 100 wpc amps that are inferior in this regard.

I read Sterophile and TAS and enjoy the reviews for entertainment. I have used them to steer me towards products to audition. Much is provided about regarding amplifier and speaker specifications. I have never bought a product without listening to it, unless I knew I could return it or sell it at little loss (the usual case for me as i often buy used).

If I was building a system based on a $1500 budget for amplification, I would search out a 50-100 wpc( close to 2x that into 4 ohm) integrated amp and 6 - 8 ohm speakers of 87db or better sensitivity. I would chose the combination that most satisfied my listening preferences. For many starting out in this hobby, knowing what it is about the sonic experience that is most important to them is not yet known.

Mesch has giben the most accurate info. so far. I would simply add that it is quite possible to assemble a system comprising separates if you shop carefully. Emotiva offer a very good preamp (XSP-1) and amps of reasonable wattage (70-150 watts per channel, XPA-200) that will rock your world. The links provided show a system for $1500 that does everything you want...

And they have 30 days in-home trial and a 5 year warranty...

https://emotiva.com/products/pres-and-pros/xsp-1

https://emotiva.com/products/amplifiers/xpa-200

-RW-

I think the sound quality of those watts is more important than the levels, unless you are hosting Dub parties where it (sound quality) really doesn't matter much except for bass of course. I have to wonder what people are doing in these "large" rooms...set up the speakers and sit 40 feet away? Using the system as a PA to call down to the butler pantry? I have a large-ish room for my hifi rig and the system is set up so I sit relatively close (9 feet from the mains maybe) with the back wall several feet behind my sofa/sweet spot. My 60 to 85 watt tube amp and 90 or so db speakers get too loud if need be (150 watt sub also). I bet a great sounding 50 watt integrated amp will deliver more pleasure that a mediocre 150 watts, and for less moolah. If I need to make the rafters shake, I'll apply my 1000 watt PA rig (I use it for mostly house concerts and pro monitoring).

Thanks, Rlwainwright. However,as i tried to indicate, most of my post was a follow-up to previous advisees.

Yes Wolf, paying for excess power at the expense of quality is not a good trade off.

A couple of integrated amps I've looked at in your range are the Rogue Audio Sphinx rated at 100 wpc and a used Krell s300 I. Two different animals I believe and dependent on speaker choice. Just a couple of things to consider. I don't know all that much about this stuff though...