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#1
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CD Player Gain
Hi RAT's
I know there are posts on CD player gain in the archive... I found them when I was building a AUX-bleed for my amp. Like many I found CD players have so much gain they overdrive my integrated amps' pre-amp. I ended up bleeding away a *lot* of CD signal to ground, then using the pre-amp. I've heard many people use CD players *without* any pre-amplification, that is, straight to the power amp (with a passive vol. control I imagine!). So.. what *sounds* better; 1) A high-gain solid-state CD player without pre-amplification, or 2) A reduced-gain CD player through a tube pre-amp? |
#2
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hehe-use some interstage xformers-say 10K : 2K
in that case you don't even need any tube in path; or-rip off everything after DA stage and put WOT stage in. or just OT,if your player have I to V conversion type of DA output. -- -- -- .................................................. ........................ Choky Prodanovic Aleksandar YU "don't use force, "don't use force, use a larger hammer" use a larger tube - Choky and IST" - ZM .................................................. ........................... "EC" wrote in message ... Hi RAT's I know there are posts on CD player gain in the archive... I found them when I was building a AUX-bleed for my amp. Like many I found CD players have so much gain they overdrive my integrated amps' pre-amp. I ended up bleeding away a *lot* of CD signal to ground, then using the pre-amp. I've heard many people use CD players *without* any pre-amplification, that is, straight to the power amp (with a passive vol. control I imagine!). So.. what *sounds* better; 1) A high-gain solid-state CD player without pre-amplification, or 2) A reduced-gain CD player through a tube pre-amp? |
#3
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EC wrote:
Hi RAT's I know there are posts on CD player gain in the archive... I found them when I was building a AUX-bleed for my amp. Like many I found CD players have so much gain they overdrive my integrated amps' pre-amp. I ended up bleeding away a *lot* of CD signal to ground, then using the pre-amp. I've heard many people use CD players *without* any pre-amplification, that is, straight to the power amp (with a passive vol. control I imagine!). So.. what *sounds* better; 1) A high-gain solid-state CD player without pre-amplification, or 2) A reduced-gain CD player through a tube pre-amp? Are you trying to play the CD player thru the phono input? If so, there's no need to do that, as CDs are not prefiltered with the RIAA phono curve. CD players produce around 2 to 4 volts peak to peak audio that would feed an AUX or TUNER input jack. If you are willing to pry the lid off the CD player, take a look at my page: http://home.netcom.com/~wa2ise/radios/tubedac.htm Some op-amps can sound poor because of the crossover distortion in their output stages. You can force single ended operation if you connect a load resistor from the output to a filtered positive or negative supply rail. Size the resistor so you pull around 2ma, and choose a rail such that the resistor doesn't draw less than around 1/2 ma at any point of the audio waveform. Some op-amps benefit from this, others not so much. Easy to try, however. |
#4
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In English: A reduced-gain CD player through a tube pre-amp sounds better
imho! I've always enjoyed Choky's posts etc... but gimme a break... how many people out there know what this means: "or-rip off everything after DA stage and put WOT stage in. or just OT,if your player have I to V conversion type of DA output." I'm not looking for a flame, just a translation. Chad On Tue, 03 Feb 2004 19:31:54 +0000, EC wrote: Hi RAT's I know there are posts on CD player gain in the archive... I found them when I was building a AUX-bleed for my amp. Like many I found CD players have so much gain they overdrive my integrated amps' pre-amp. I ended up bleeding away a *lot* of CD signal to ground, then using the pre-amp. I've heard many people use CD players *without* any pre-amplification, that is, straight to the power amp (with a passive vol. control I imagine!). So.. what *sounds* better; 1) A high-gain solid-state CD player without pre-amplification, or 2) A reduced-gain CD player through a tube pre-amp? |
#5
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Hi Chad ,
gimme a break... OK , I'll post the answer tomorrow ;-)) how many people out there know what this means: "or-rip off everything after DA stage and put WOT stage in. or just OT,if your player have I to V conversion type of DA output." I'm not looking for a flame, just a translation. Chad I had the same problem once not knowing WOT it means ..... W-ith O-utput T-ransformer . Just remember if you see Choky's name , think "iron" !! ;-)))) That's why he uses that name ...... Ronald . On Tue, 03 Feb 2004 19:31:54 +0000, EC wrote: Hi RAT's I know there are posts on CD player gain in the archive... I found them when I was building a AUX-bleed for my amp. Like many I found CD players have so much gain they overdrive my integrated amps' pre-amp. I ended up bleeding away a *lot* of CD signal to ground, then using the pre-amp. I've heard many people use CD players *without* any pre-amplification, that is, straight to the power amp (with a passive vol. control I imagine!). So.. what *sounds* better; 1) A high-gain solid-state CD player without pre-amplification, or 2) A reduced-gain CD player through a tube pre-amp? |
#6
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"emulsion" wrote in message
news In English: A reduced-gain CD player through a tube pre-amp sounds better imho! I've always enjoyed Choky's posts etc... but gimme a break... how many people out there know what this means: "or-rip off everything after DA stage and put WOT stage in. or just OT,if your player have I to V conversion type of DA output." I'm not looking for a flame, just a translation. Chad On Tue, 03 Feb 2004 19:31:54 +0000, EC wrote: as Ronald sez-With Output Transformer ; or later-Output Transformer. there is (on Net) plenty of info how to convert last stage of your CD player in tube or ,even, passive stage. cheers! -- -- -- .................................................. ........................ Choky Prodanovic Aleksandar YU "don't use force, "don't use force, use a larger hammer" use a larger tube - Choky and IST" - ZM .................................................. ........................... |
#7
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Hi,
Just remember if you see Choky's name , think "iron" !! ;-)))) That's why he uses that name ...... Ronald . I thought he explained it once, as the local slang for "four-eyes." Cheers, Alan |
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