Direct coupled tube preamp?


Anyone have any experience with a tube preamp that doesn't use output coupling capacitors? I think the Atma-Sphere preamps don't use them. Otherwise, I'm drawing a blank.
dracule1
Oh, yeah, forget about those controls on the amp, I have set them right, but wasn't sure what the purpose was, not I have a better idea - thank you for you input (no pun intended).
Yea, you can adjust the DC offset on the Atma-Sphere amps so it will be negligible.
Pubul57, direct coupled usually means no capacitor in the signal path. However, Atma-Sphere preamps have capacitors in the signal path, just not in the output coupling stage. Coupling capacitors on the output are placed there to block any DC from getting to your amp and possibly to your speakers if the amps are also direct coupled - this can damage your speaker. Capacitors impart their own colorations to the sound; for example, paper in oil caps are known to have a very relaxed smooth sound, but some find them muddy and slow sounding. They also can limit low bass response and roll off the top end. The larger the capacitor value, more sonic coloration will be imparted. The largest value cap is usually the output coupling cap in order to block DC and not to limit low bass. These are generalizations of course, but most would agree caps do add colorations to some degree. So getting rid of output caps will increase dynamics, extend the low and high frequencies, and in general have more neutral sound. That's how I see it. I'm not legally or technically responsible for the above statements.
What are the advantages or disadvantages of both approaches? I have an Atma pre but did not really think about what being direct coupled meant and why it was a good thing, versus the more conventional approach.
You can find them on here, used, for about $2500, a bit less if it's not the version with the phono stage. You have to make sure it's the F-1 version, and that it is stated it is direct coupled. They don't come that way unless it is expressly stated on the box. Only Upscale audio sells them configured from Cary this way. You can get one new from them, you have to call Kevin there, and sometimes they will make you a very good deal on one.
Thanks for the suggestions everyone. I really like the red and black color and looks of the SLP-98.
MacDadtexas,how much is the Cary SLP98p F-1? Do you have the direct couple version?
I second Mofimadness and Macdadtexas above. The Cary SLP-98 F1 is a stone killer at its price.
Audio Electronics AE-3 DJH is direct coupled. It's essentially a baby brother to the Cary SLP98. It's fantastic sounding and mates well with tubes or SS.
I have one of the Cary SLP98p F-1 versions, mentioned above. It's simple awesome. I change out gear all of the time, it's an illness, yet I never have any desire to change out the Cary preamp.