12AU7, 12BH7, 5814, 5963 or 6189
Those are the tube types that plug & play in my VTA ST-120 amp.
I added a Behringer electronic crossover and the crossover has made it a little too bright and possibly a tinge harsh on the highs.
Is there a tube you can recommend for the driver stage that will make the amp sound as if the Behringer active crossover was not there. I love the way it sounds without the active crossover but i need the active crossover for my configuration.
Something to counter act the brightness and harshness of that active x-over
thanks,
Eddie
Those are the tube types that plug & play in my VTA ST-120 amp.
I added a Behringer electronic crossover and the crossover has made it a little too bright and possibly a tinge harsh on the highs.
Is there a tube you can recommend for the driver stage that will make the amp sound as if the Behringer active crossover was not there. I love the way it sounds without the active crossover but i need the active crossover for my configuration.
Something to counter act the brightness and harshness of that active x-over
thanks,
Eddie
Have you look inside the Behringer? Instead of messing with the VTA ST-120, just put another EQ in the chain to shape the frequency response, or as Kevin suggested get a better, transparent XO.
Or just do what I did- pull out the output stage and replace it with passive RC. Problem solved for about $5 in parts and an hour of soldering.
My thought too, that the Behr would have a tweeter channel EQ internally to tweak... Maybe it got +12db by accident with all the menus and digital wicky wacky...
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$5 in parts and one hour sounds very tempting...but I'm not sure what you're suggesting. What is a "passive RC"...and what exactly is pulled out when you say pull out the output stage.
When i think of pulling out the output stage i imagine pulling out the 4 KT-88 valves and the two output transformers that the KT-88's feed. hmmm
SY is talking about the output circuitry in that Behringer electronic XO.. 😀 I don't use them so cannot provide more specific guidance.
RC - resistor and capacitor, in audio applications usually either implementing a passive low pass filter (LPF) or passive high pass filter (HPF). In this case SY is talking about a passive first order(single resistor and cap) LPF would be my guess.
Eddie, Jan Didden wrote this up in an article for AudioXpress. It should be findable via google. I didn't do exactly what he did, but close enough.
edit: http://www.linearaudio.nl/linearaudio.nl/images/pdf/dcx passive article.pdf
edit: http://www.linearaudio.nl/linearaudio.nl/images/pdf/dcx passive article.pdf
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