Yingtonggao's problem was too much system gain with his 104db speakers. As the low gain Cary poweramps seems to have now fixed.
The cheapest way I suggested in one of my first posts a removal of gain by either going direct or the use of a passive, mine or anyones, and that colouration may also be reduced, and that Nelson Pass also recommends this. *Below is is quote again*
It was just couple of others here that started the passive vs active debate.
*A Quote from the master Nelson Pass
We’ve got lots of gain in our electronics. More gain than some of us need or want. At least 10 db more.
Think of it this way: If you are running your volume control down around 9 o’clock, you are actually throwing away signal level so that a subsequent gain stage can make it back up.Routinely DIYers opt to make themselves a “passive preamp” - just an input selector and a volume control.
What could be better? Hardly any noise or distortion added by these simple passive parts. No feedback, no worrying about what type of capacitors – just musical perfection.
And yet there are guys out there who don’t care for the result. “It sucks the life out of the music”, is a commonly heard refrain (really - I’m being serious here!). Maybe they are reacting psychologically to the need to turn the volume control up compared to an active preamp.*
Cheers George
The cheapest way I suggested in one of my first posts a removal of gain by either going direct or the use of a passive, mine or anyones, and that colouration may also be reduced, and that Nelson Pass also recommends this. *Below is is quote again*
It was just couple of others here that started the passive vs active debate.
*A Quote from the master Nelson Pass
We’ve got lots of gain in our electronics. More gain than some of us need or want. At least 10 db more.
Think of it this way: If you are running your volume control down around 9 o’clock, you are actually throwing away signal level so that a subsequent gain stage can make it back up.Routinely DIYers opt to make themselves a “passive preamp” - just an input selector and a volume control.
What could be better? Hardly any noise or distortion added by these simple passive parts. No feedback, no worrying about what type of capacitors – just musical perfection.
And yet there are guys out there who don’t care for the result. “It sucks the life out of the music”, is a commonly heard refrain (really - I’m being serious here!). Maybe they are reacting psychologically to the need to turn the volume control up compared to an active preamp.*
Cheers George