Preamp possibles for system...


I am currently using a Belles 21A auricap but have been itching to try something else for possible system improvements. The amp is a T-hold S/500 ll with an Arcam CD23 and Polk SDA-2's with RDO-194 tweets. All IC's/PC's are Morrow Level 3/4. My 22'x35' listening environment is slightly harsh with wood floors and a fair amount of glass. Musical taste is quite varied at moderate volumes.

In general, I feel the base or low level frequencies are a bit forward but not crisply defined. Also the high frquencies seem somewhat constrained or maybe rolling off early...using others terminology I have read. Almost as if the singers are behind the band. Not always, but on enough recording's I notice it.

My previous amp was a Nak 7. Everything else staying the same, I recently switched to the T-hold S/500. I literally would have wrote an exact opposit review of the systems traits critiquing it with the Nak. I was certainly surprised...in a VERY good way.

I have read that the T-hold amps liked certain pre's. Here is a list I have gleaned from some research. I have not seen all of these available, so some maybe out of the question. I would be gratefull for any input to try and target my continued refinement.

Sonic Frontiers line 3
Aestetic Calypso
Audio research LS25 mk1 or 2
Modwright 9.0se
Klyne 7

mlo97
Sounds logical. Here is a few CDP's I have seen reference to with Pass gear I think would be in my budget. I think most of these are still near the ten year old mark. Would they be a marked improvement over the CD23?

Ayre Cx-7
Accuphase 65, 67
Arcam 37
Marantz 7si
It appears you want a more aggressive detailed/dynamic and extended player. Of the ones you mentioned the Ayre has the characteristics above. The Ayre is currently selling the Evolution/MP model. With the Ayre I would look at softer(less edgey)pre-amps. Jeff Rowland could be a great choice if you want to avoid tubes.
The Klyne has some interesting Design solutions which can make life pretty good
- 2 separate Gain knobs (for each channel), this feature allows the owner to match it to any connected amp (or you can use it for sources, too)
- some say, sonically it closes the gap between Transistor / Tube sound
- reliable
- external power supply
- it can be ordered with internal Phono Stage when you want to listen to Vinyl one day
I too will through my opinion behind Ayre products. Although I ended up purchasing the latest C5 model I did bring home the C7 and thought they were both as natural sounding as anything I've heard, including analog.
What 12AU7 tubes are you running in your 21A? I had the same pre-amp, and have rolled quite a few NOS tubes in it with fairly dramatic results.