Shocked. Need Opinions. How muck power do I need?


I’m moving so of my sound gear around. As a temporary measure, I set up my little Cambridge EVO 75 in my main system. Driving my Dali Mentor 6s in a large room (36x36). Speakers are 9 feet apart and seat is 10 feet from speakers. This 75 water replaced my much more powerful monoblocks. To my shock, the amp drove these speakers just fine. The bass was a little weaker, but perfectly acceptable.  Here’s what I want to know— if 75 watts are enough, will 40 watts do? I’m talking all solid state. What say you?
 

 
 

 

tomaswv

I think you hit the nail on the head, the issue for many speakers is not watts @ 8 Ohms, but current delivery.  It’s how well an amplifier does in the 3-4 Ohm range that’s important, especially with speakers with dual woofers as they tend to hit a low in the bass, as you point out.

Unless you are trying to shake the walls down 100W is often more than enough for most listeners.

A Luxman 509 or even a 507 for instance would probably be more than enough for you.

@erik_squires

+1

 

Current is the game, absolutely. But I would not start trying to find the minimum because as you already found the bass starts dropping off. Maybe in a quick listen that is ok… but it may not sounds as good at quieter levels. I would not go below 100 wpc and with solid state, more (of the same quality) generaly sounds better. Tubes are way different… much more flexible and not requiring as much power to sound good.

 

Brand is a personal preference. To me solid stat Luxman has accentuated treble and a bit extra bass and is attenuated in the midrange so is not that musical. It sound very “high end” and sparkly… and looks pretty. I would look at Pass, better balanced tonally, with good midrange and very musical for solid state. Ultimately your preference.

Many thanks. Good point about a quick listen vs living with it for a while and at low levels.