Speaker Efficiency


   I have been listening to my Decware 300b tube amp for a few months now. At 8 watts, I have them paired with Klipsch Forte IV at 99db efficiency, and this set up has been sounding great. This morning I connected a pair of Sonus Faber Electa Amator speakers, 6ohms at 88db of efficiency. They sound fantastic, with more weight  and depth. I understand there is a huge price difference in the two speakers, but aside from that, if I am getting 80db of volume at my chair, 8' away, what is the draw back of using lower efficiency speakers with SET amps, so long as the volume is sufficient? I did notice turn the Pre amp, the tube amp and the Roon volume towards the highest setting, it starts sounding terrible....

 

128x128marktheshark

Obviously all parts of the system chain make a difference, but few make more difference than the speakers. Especially how they interact with the room and present a soundstage.

If you love the sound of the Electa Amator speakers, I’d look to get bigger tube amp. Even if it’s PP vs SET, there are some great sounding PP examples that would drive the Amator to the desired sound level.

On a side note - Not sure if you're running a sub, but a well setup pair of smallish active subs could be a nice pairing with your speakers/system.

I have moved from 87 db on 94 db speakers. Much much better , also for the amp.

Then why even make speakers in the 80db range if higher impedance is better? 

@knotscott My current setup will remain as it was. The 300b amp with Forte's in the living room, with Dac. The Sonus Faber's in the bedroom with a Hegel Integrated and turntable. I agree, I love the sound of the Electa Amator's, and they look really nice, so the wife doesnt mind them in the BR.

    I'm spending the weekend swapping components of the two systems around out of curiosity. I do think at some point I may swap out the Forte for another speaker. @mapman suggested fritz, they are very interesting, and not hugely expensive. I have also listened to Devore, Audio Note, Spatial Audio, Zu Audio, all seem like a good match with the Decware amp. maybe even a Decware Speaker.  

@bigkidz I agree, the less expensive amp, may sound better depending on all other parts of the system. Trying to compare a myriad of components, matching speakers, down to the minutia of cables, cartridges and tweeks can be daunting. I listened to Devore O/96 this week at dealer and they sounded excellent, but this was a well treated room, with very expensive Dac and amplification. I thought, how would these speakers actually sound in my mediocre room, with my equipment?

                            

I am using a 300B amp to drive Klipsch LaScala IIs. Of course the LS II is one of the highest sensitivity speakers one can buy, but I can drive them with 9 watts to levels greater than I can stand in a 400 sq. ft. room. I can listen to any genre of music to great effect,  no loss of volume, dynamics, or bass control.