pre-amp to power amp

baldlobo · 22nd May 2005, 06:08 AM

ok, would running audio out on a pre-amp(that is amped 10w rms) to a power amp of ¡Ü wattage 1)cause distortion?(would distorion be caused by using the amps in series), 2) increase dbls significanly(or modified to increase dbls), 3) increase wattage to speakers?

thanks for any info

Bill Fitzpatrick · 22nd May 2005, 07:06 AM

What's a "dbls" ?

Upupa Epops · 22nd May 2005, 07:34 AM

" dbls " = probably decibels

AndrewT · 22nd May 2005, 08:12 AM

Hi Baldlobo,
could you rephrase your Qs. I (& maybe some others) am having trouble understanding what you want.

pinkmouse · 22nd May 2005, 08:35 AM

I think he wants to plug the output of a smaller power amp into the input of a larger one, to get more power than each one individually.

But I could be wrong.

planet10 · 22nd May 2005, 08:57 AM

Quote:

Originally posted by pinkmouse
think he wants to plug the output of a smaller power amp into the input of a larger one, to get more power than each one individually.

If that is the question, then the answer is no... worst case he may let some smoke out...

dave

baldlobo · 22nd May 2005, 09:23 PM

Quote:

Originally posted by pinkmouse
I think he wants to plug the output of a smaller power amp into the input of a larger one, to get more power than each one individually.

But I could be wrong.

basically, yes that's what I want to do.

Quote:

Originally posted by planet10

If that is the question, then the answer is no... worst case he may let some smoke out...

dave

then answer me this then, why on some of the other boards say you can. I'll supply links

pinkmouse · 22nd May 2005, 09:28 PM

Quote:

Originally posted by baldlobo
I'll supply links

Please do! No disrespect to you, but there is a lot of nonsense on the internet, and it looks like you have found some prime examples. However, you've come to the right place to get decent advice now.

kafka · 22nd May 2005, 09:32 PM

I don't think anybody wrote something like that. You might have misunderstood something. You can for example use headphone amp as a preamp, but it is't connectes with increasing the output power.

planet10 · 23rd May 2005, 12:28 AM

Quote:

Originally posted by baldlobo
then answer me this then, why on some of the other boards say you can. I'll supply links

It can be done... to be safe using attentuating Rs (exactly what plate amps do if you are using the speaker level inputs), but you get only the power output of the 2nd amp. In this case the 1st amp still sees a real load as well, with just a trickle bleed off to feed the sub amp.

dave

22nd May 2005, 06:08 AM	#1
baldlobo diyAudio Member Join Date: Dec 2004 Location: wpg,mb	pre-amp to power amp ok, would running audio out on a pre-amp(that is amped 10w rms) to a power amp of ¡Ü wattage 1)cause distortion?(would distorion be caused by using the amps in series), 2) increase dbls significanly(or modified to increase dbls), 3) increase wattage to speakers? thanks for any info

22nd May 2005, 08:12 AM	#4
AndrewT diyAudio Member Join Date: Jul 2004 Location: Scottish Borders	Hi Baldlobo, could you rephrase your Qs. I (& maybe some others) am having trouble understanding what you want. __________________ regards Andrew T.

22nd May 2005, 08:35 AM	#5
pinkmouse diyAudio Moderator Join Date: Apr 2002 Location: Chatham, England	I think he wants to plug the output of a smaller power amp into the input of a larger one, to get more power than each one individually. But I could be wrong. __________________ Al I conceive of nothing, in religion, science or philosophy, that is more than the proper thing to wear, for a while. Charles Fort

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22nd May 2005, 07:06 AM	#2
Bill Fitzpatrick diyAudio Member Join Date: Jun 2001 Location: Eugene, OR	What's a "dbls" ?

22nd May 2005, 07:34 AM	#3
Upupa Epops diyAudio Member Join Date: Aug 2003 Location: Prague,Czech Republic	" dbls " = probably decibels

22nd May 2005, 09:32 PM	#9
kafka diyAudio Member Join Date: Jun 2004 Location: Lublin	I don't think anybody wrote something like that. You might have misunderstood something. You can for example use headphone amp as a preamp, but it is't connectes with increasing the output power.

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