Tube buffer before pre-amp/amp?

Destroyer OS. · 20th October 2008, 04:18 PM

Is there any kind of kit out there? A friend of mine has a few keyboards but keeps the volume a little bit low in my opinion, but they are too overpowering harsh to really turn up as well. I am thinking a tube buffer that can be used after all the pedals and stuff, right before the pre-amp/amp would really make it pleasant.

juluska · 9th January 2009, 06:29 PM

ebay item: 250341371958

wakibaki · 9th January 2009, 07:09 PM

OK, the ebay item is interesting, but it's for HiFi application, not musical instrument amplification, not to say it won't work, but it is CLEAN amplification, and will add very little or no warmth if driven as intended. Huge overload margin, it says.

What exactly do you want this tube stage to do? It will not give you volume without harshness. This is more likely the result of an overstressed amplifier or speakers, although it may be the keyboard itself. I would try a bigger amplifier (I don't often recommend this) and bigger speakers combined with judicious use of the tone controls. You can keep it turned down and get the volume in a more relaxed manner.

Listen to the keyboard with headphones to see if the sound is satisfactory in it's own right. If it's no good, you can't fix it, nohow.

w

20th October 2008, 04:18 PM	#1
Destroyer OS. diyAudio Member Join Date: Nov 2005	Tube buffer before pre-amp/amp? Is there any kind of kit out there? A friend of mine has a few keyboards but keeps the volume a little bit low in my opinion, but they are too overpowering harsh to really turn up as well. I am thinking a tube buffer that can be used after all the pedals and stuff, right before the pre-amp/amp would really make it pleasant.

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9th January 2009, 06:29 PM	#2
juluska diyAudio Member Join Date: May 2008	ebay item: 250341371958

9th January 2009, 07:09 PM	#3
wakibaki Banned Join Date: Jan 2008 Blog Entries: 2	OK, the ebay item is interesting, but it's for HiFi application, not musical instrument amplification, not to say it won't work, but it is CLEAN amplification, and will add very little or no warmth if driven as intended. Huge overload margin, it says. What exactly do you want this tube stage to do? It will not give you volume without harshness. This is more likely the result of an overstressed amplifier or speakers, although it may be the keyboard itself. I would try a bigger amplifier (I don't often recommend this) and bigger speakers combined with judicious use of the tone controls. You can keep it turned down and get the volume in a more relaxed manner. Listen to the keyboard with headphones to see if the sound is satisfactory in it's own right. If it's no good, you can't fix it, nohow. w

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