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Peachtree audio iDecco - not hearing any difference with the tube on or off.

So I bought a used iDecco and I am using it as a DAC preamp. It is connected to an Onkyo equalizer via its Line Out and the equalizer is connected to my Artcoustic PA300 power amp. I have no complains about its sound as is, I am extremely happy with my current setup, But I noticed that the tube does not really have any impact to the sound? Is it because I am using the iDecco as a DAC and not as an integrated amp? I havent had the chance yet to connect the speakers directly to the idecco and test the tube. I also just recently changed the tube from 6nj1 to Amperex orange label ECC88/ 6DJ8. I just cant hear any difference at all whether the tube is on or off.
jepoy

Showing 2 responses by tuberist

tuberist's avatar
tuberist
951 posts
 
my tv system employs a Nova 125se and I could hear a slight loss of dynamics with the tube activated. pro reviewers have said the same. 
tuberist's avatar
tuberist
951 posts
 
Jepoy, my speakers and sub are connected direct to the Peachtree Nova 125se. I run without the tube....higher signal to noise ratio too so that might be the difference I heard. as always, let your ears be the judge
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