[TomW16]

I have not heard the AKSA amp but can offer a few comments on my experience with a passive preamp.  

If the amp has a high enough input impedance (say >50Kohms), the attenuator's resistance is kept low (10-20Kohms) and your source has a relatively low output impedance (<100 ohms), you should have a system that is very resolving and will not lack dynamics.  Of course, the interconnects should also be as short as possible and be of low capacitance.  I own a system like this and think it is very dynamic and resolving.

If any of the impedances are off you could have a very "mellow" sounding system in which case you may be better off with an active preamp to correct the impedance mismatches.

Enjoy the music!

Tom

[netaron]

From the above formula, can someone please  tell me if the 55N+ qualifies for the passive approach? Also, my observations have been that it is mostly a recording issue, some music does sound layed back as you mentioned, but some sound just right.

[fajimr]

From the above formula, can someone please  tell me if the 55N+ qualifies for the passive approach?

netaron,

here's a thread I started inquiring about pre-amps.  you might find it helpful.

http://www.audiocircle.com/index.php?topic=18146&highlight=

[AKSA]

Hi Haron,

Yes, the 55W would be fine in this role!  You could use a 20K pot, or, if you really wanted it quiet (but tougher to drive) you could use a 10K passive attenuator.

I agree with the gentleman from Nebraska.  He's on the money from the POV of attenuator impedances.

Cheers,

Hugh

[stvnharr]

About all that I have to add here is that if you feel comfortable with going passive now, but not completely sure, you could always go with Hugh's TLP.  This would add a little buffering and small amount of "tube-ness" without adding gain.  You can use a stepped attenuator instead of the pot.
While I have never listened to a system w/TLP, I feel comfortable with understanding what I believe it is designed to do.  Of course Hugh is the one to ask.
Just try not to worry too much.  I remember how I was when I made my passive preamp and how needlessly nervous I was about how it would work.  You and the music will be fine, whichever way you decide to go.