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Jeff Rowland 501s burn in ... a strange experience

I have received today my monoblocs 501 and borowed a ML 39:
ML 39
NBS monitor III
Capri
NBS Monitor III
monoblocs 501
NBS Monitor IV
Infinity Renaissance 90

around 2:p.m (Europe) I have installed the system:
sound very detailed, beautifull soundstage imaging & focus, great energy,
on the negative side, some high frequencies too harsch a little bit venomous

6 hours later (system working all the time) complete change ... do the monoblocs suffer jet lag? ... ;-)

the sound has become very fat and heavy, has the energy of a sleepy hypopotamus, everything is slow, too warm, without focus, like coming from bad tube components ...

from one extreme to another... how is that possible, so extreme, I am ???

any suggestions?

thanks
clavil
coffeey's avatar
coffeey
363 posts
 
You gotta love all this digital break in excuse 1000 hrs what a joke,then if that doesnt work ,try this,then something else ,the list never ends with dig amps,
guidocorona
4,298 posts
 
Coffeey, admittedly switching amps are not good solutions for the seeker of instant gratification. . . . in fact, most of the hobby is rather for the obsessively inclined, to one extent or an other. G.
muralman1
1,527 posts
 
My class D amp builder, Henry Ho, told me this story. A buyer of his amp called him after a first listen, and said, "Henry, your amps have NO BASS!" Henry told him to be patient. A half hour later the guy called back, "Henry, your amps have TOO MUCH BASS!"

Henry now tells buyers he does not want to hear from them for at least a week of near continuous playing. Henry, who built class A amps first, didn't believe in breaking in gear either.
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