CD direct to Power Amp??

SamClassA · 19th October 2006, 09:42 AM

Hello, Is it posible to connect a CD player with a Volume adjustment on the Remote control, directly to a Power amp, thus bypassing a Pre-amp?

Netlist · 19th October 2006, 10:07 AM

Sure it is possible, it depends how complex the circuit of the amplifier is.
With a schematic, it must be doable. Some old integrated amps had the possibility to separate the pre and power amp from each other by means of a jumper on the back.

/Hugo

lucpes · 19th October 2006, 10:11 AM

Quote:

Originally posted by SamClassA
Hello, Is it posible to connect a CD player with a Volume adjustment on the Remote control, directly to a Power amp, thus bypassing a Pre-amp?

Yes, you should be able to connect directly to the power amplifier section, as most integrated amps have the pre/power on separate boards.

magpietim · 19th October 2006, 12:01 PM

You can...but on my CD player...Marantz CD63 mk11 when the player is turned off then on again the volume is set back to maximum....so be careful.

Tim.

SamClassA · 19th October 2006, 12:21 PM

Sounds good, so do you think by doing so, you should get a better sound?

poynton · 19th October 2006, 01:07 PM

Hi.

Some models have a motorised volume control rather than digital as in the CD63. These retain the volume settings and are therefore better in this situation.

I use a 'Battle-ship' class Kenwood DP-1100SG ( Google it )connected this way to my power amp - superb !!

Andy

magpietim · 19th October 2006, 01:14 PM

Funny thing is i've never tried it....maybe i should.

Tim.

I_Forgot · 19th October 2006, 02:05 PM

If the volume control is implemented digitally, you may find that as you turn the volume down, the distortion rises severely and audibly.

Why not just run it through a box with a potentiometer? Oh yeah, not remote...

I_F

Cloth Ears · 19th October 2006, 02:45 PM

Friend of mine used to run his Sony XA7ES direct into his power amplifier. This was a modified some-thing or other with about 400+ watts/ch - which was needed, as the crossover for his Focal 2-ways fairly chewed through them. Never-the-less, you could play some quiet CDs (eg Clark Terry live at the Village Gate) using the direct out plugs, instead of the volume controlled plugs. Using the standard volume control on the player it sounded positively grainy - the aural equivalent of pouring sand in your pants. Using the direct out, the sound was some of the best I'd heard to that point.

To be honest, despite all the new equipment he's been able to get hold of (he works in the industry), he's never quite had the sound from that set-up. At least, using the above mentioned CD, anyway. And as he's running the top o' the line Sony SACD, pre-amp and stereo power amps (count 'em - 2) into ELAC 510's and a Tumult subby - I think that's quite a feat. It's probably a little better on transients, maybe with a bit better control over the (admittedly more) bass, and with the same resolving capability and image, but the sound doesn't quite seem to have the same depth and warmth of the old set-up. But maybe my memory of Mr Mumbles is better than my current hearing...?

i.j.russell · 19th October 2006, 03:18 PM

Quote:

Originally posted by magpietim
Funny thing is i've never tried it....maybe i should.

Tim.

The fixed output on the Marantz is much better than the variable except at full volume. Most volume controls on CD players are there more for convenience than anything else.

19th October 2006, 09:42 AM	#1
SamClassA diyAudio Member Join Date: Jul 2006	CD direct to Power Amp?? Hello, Is it posible to connect a CD player with a Volume adjustment on the Remote control, directly to a Power amp, thus bypassing a Pre-amp?

19th October 2006, 02:45 PM	#9
Cloth Ears diyAudio Member Join Date: Dec 2001 Location: Melbourne, Australia	Friend of mine used to run his Sony XA7ES direct into his power amplifier. This was a modified some-thing or other with about 400+ watts/ch - which was needed, as the crossover for his Focal 2-ways fairly chewed through them. Never-the-less, you could play some quiet CDs (eg Clark Terry live at the Village Gate) using the direct out plugs, instead of the volume controlled plugs. Using the standard volume control on the player it sounded positively grainy - the aural equivalent of pouring sand in your pants. Using the direct out, the sound was some of the best I'd heard to that point. To be honest, despite all the new equipment he's been able to get hold of (he works in the industry), he's never quite had the sound from that set-up. At least, using the above mentioned CD, anyway. And as he's running the top o' the line Sony SACD, pre-amp and stereo power amps (count 'em - 2) into ELAC 510's and a Tumult subby - I think that's quite a feat. It's probably a little better on transients, maybe with a bit better control over the (admittedly more) bass, and with the same resolving capability and image, but the sound doesn't quite seem to have the same depth and warmth of the old set-up. But maybe my memory of Mr Mumbles is better than my current hearing...? __________________ Jont. "It is impossible to build a fool proof system; because fools are so ingenious."

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19th October 2006, 10:07 AM	#2
Netlist diyAudio Moderator Join Date: Jan 2003	Sure it is possible, it depends how complex the circuit of the amplifier is. With a schematic, it must be doable. Some old integrated amps had the possibility to separate the pre and power amp from each other by means of a jumper on the back. /Hugo

19th October 2006, 12:01 PM	#4
magpietim diyAudio Member Join Date: Feb 2005 Location: Nottingham	You can...but on my CD player...Marantz CD63 mk11 when the player is turned off then on again the volume is set back to maximum....so be careful. Tim.

19th October 2006, 12:21 PM	#5
SamClassA diyAudio Member Join Date: Jul 2006	Sounds good, so do you think by doing so, you should get a better sound?

19th October 2006, 01:07 PM	#6
poynton Magneto the Gravity Man diyAudio Member Join Date: Mar 2005 Location: A life on the ocean waves when I'm not at home in N. Wales (but I'm not Welsh so no sheep jokes!)	Hi. Some models have a motorised volume control rather than digital as in the CD63. These retain the volume settings and are therefore better in this situation. I use a 'Battle-ship' class Kenwood DP-1100SG ( Google it )connected this way to my power amp - superb !! Andy

19th October 2006, 01:14 PM	#7
magpietim diyAudio Member Join Date: Feb 2005 Location: Nottingham	Funny thing is i've never tried it....maybe i should. Tim.

19th October 2006, 02:05 PM	#8
I_Forgot diyAudio Member Join Date: Jan 2005 Location: Phoenix, Az.	If the volume control is implemented digitally, you may find that as you turn the volume down, the distortion rises severely and audibly. Why not just run it through a box with a potentiometer? Oh yeah, not remote... I_F

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