Pass labs amp for Kef LS50?

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Don't believe KEF when they say its a nominal 8 ohm load. Its 4ohms.

KEF LS50 Anniversary Model loudspeaker Measurements | Stereophile.com

As with all small, low impedance, inefficient speakers (you can't have it all) throw lots of very high quality watts at them and they will shine. I have 100w class AB. They sounded absolutely flat as a pancake with 30 watts of EL34 strapped triode. Can't advise on Pass model suitability though.
 
Depends on how loud and hoe big a room.

I have R700 (3 ways) based on the same drivers with a 50W Pass F5 turbo. They work fine. I have heard LS50 in a small room with a 100W A/B amp. It was fine but the LS50s don't sound "big" and they don't like getting real loud. But they sound excellent. Great imaging and detail and lifelike tonality. One of my favorite speakers I've heard.
 
Don't believe KEF when they say its a nominal 8 ohm load. Its 4ohms.

KEF LS50 Anniversary Model loudspeaker Measurements | Stereophile.com

As with all small, low impedance, inefficient speakers (you can't have it all) throw lots of very high quality watts at them and they will shine. I have 100w class AB. They sounded absolutely flat as a pancake with 30 watts of EL34 strapped triode. Can't advise on Pass model suitability though.

Great information. Much appreciated.
 
Don't believe KEF when they say its a nominal 8 ohm load. Its 4ohms.

KEF LS50 Anniversary Model loudspeaker Measurements | Stereophile.com

As with all small, low impedance, inefficient speakers (you can't have it all) throw lots of very high quality watts at them and they will shine. I have 100w class AB. They sounded absolutely flat as a pancake with 30 watts of EL34 strapped triode. Can't advise on Pass model suitability though.

BTW I like your Bill Bryson quote 🙂 My wife and I liked the name Bryson so we gave to to my Son 🙂
 
If you don't listen at loud levels any of these amps would be suitable:
F6
M2
BA3
BA2
F4 but only if you have a good preamp to drive it.
F5
F7


If you are looking to buy rather than build the XA30.8 does 30Watts Class A but then transitions to AB all the way to 100Watts.
XA25 is another possibility depending how loud you listen to music.
 
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