Linestage Questions

ak_47_boy · 3rd July 2007, 04:49 PM

This is my going to be my setup:

Phono ---> Preamp ---> Switch ---> Equalization ---> Active Crossover ---> High Amp
Radio ---> Switch --------------------> ---> Mid/Low Amp
CD ---> Switch ---> DAC ------------>
Cable ---> Switch ---> DAC --------->
Computer ---> Switch ---> DAC --->
DVD ---> Switch ---> DAC ----------->

Should the linestage go between the eq and cross? Or should two go between the cross and the amps?

EC8010 · 3rd July 2007, 08:41 PM

if the crossover is digital, then fit line stage/volume control after the crossover. It allows the DACs to run at full welly and allows you to use digital inputs.

ak_47_boy · 4th July 2007, 12:00 AM

My crossover is analogue. So between DAC and equalizer or equalizer and crossover? Should i just try it both ways?

Any suggestions for a linestage? All together it will be driving four 100th's. My plans are to make either the linestage or a tube equalizer a showpiece with lots of copper and glassware

thanks

jnb · 4th July 2007, 02:45 AM

After your crossover, you'll have twice as many channels to deal with, so there's that, but OTOH each channel will have a lesser signal to handle so as early as practical sounds good.

If it were me in those shoes, I would try to put the lower distortion conponents first. In practice I would guess that many would end up with the crossovers just before the power amps. For my systems, I try to incorporate the crossover roll-offs into my other stages somehow.

EC8010 · 4th July 2007, 08:52 PM

Quote:

Originally posted by ak_47_boy
My crossover is analogue. So between DAC and equalizer or equalizer and crossover? Should i just try it both ways?

Any suggestions for a linestage? All together it will be driving four 100th's. My plans are to make either the linestage or a tube equalizer a showpiece with lots of copper and glassware

I'm afraid I've never really done "showpiece," more "engineering chic." With an analogue crossover, I'd put the volume control/line stage before it. Putting the volume control after the crossover demands excellent tracking from at least 4 volume controls, maybe 6. That implies stepped attenuators and is only worthwhile if it allows digits to work properly.

3rd July 2007, 04:49 PM	#1
ak_47_boy diyAudio Member Join Date: Sep 2006	Linestage Questions This is my going to be my setup: Phono ---> Preamp ---> Switch ---> Equalization ---> Active Crossover ---> High Amp Radio ---> Switch --------------------> ---> Mid/Low Amp CD ---> Switch ---> DAC ------------> Cable ---> Switch ---> DAC ---------> Computer ---> Switch ---> DAC ---> DVD ---> Switch ---> DAC -----------> Should the linestage go between the eq and cross? Or should two go between the cross and the amps?

3rd July 2007, 08:41 PM	#2
EC8010 diyAudio Moderator Join Date: Jan 2003 Location: Near London. UK	if the crossover is digital, then fit line stage/volume control after the crossover. It allows the DACs to run at full welly and allows you to use digital inputs. __________________ The loudspeaker: The only commercial Hi-Fi item where a disproportionate part of the budget isn't spent on the box. And the one where it would make a difference...

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4th July 2007, 12:00 AM	#3
ak_47_boy diyAudio Member Join Date: Sep 2006	My crossover is analogue. So between DAC and equalizer or equalizer and crossover? Should i just try it both ways? Any suggestions for a linestage? All together it will be driving four 100th's. My plans are to make either the linestage or a tube equalizer a showpiece with lots of copper and glassware thanks

4th July 2007, 02:45 AM	#4
jnb diyAudio Member Join Date: Dec 2006	After your crossover, you'll have twice as many channels to deal with, so there's that, but OTOH each channel will have a lesser signal to handle so as early as practical sounds good. If it were me in those shoes, I would try to put the lower distortion conponents first. In practice I would guess that many would end up with the crossovers just before the power amps. For my systems, I try to incorporate the crossover roll-offs into my other stages somehow.

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