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
Looks like the Dunlavy's will indeed be my next speaker. Any insight on what single-ended preamp possibles would compliment the combination with a T-hold S/500 II, Bryston cdp, and full Morrow cables/IC/PC set-up?
I'd suggest getting the Dunlavy's first, and then see if you like it with the Threshold before getting a new pre. The Threshold might have more power than the Dunlavy's need.
A true differential balanced unit will have to double the number of parts in some stages.

This is not correct. It is true of *balanced* if not differential, but if *balanced differential* the parts count is less than double.