CAT SL-1 and Threshold SL10

[stakkallapelli]

Would someone who has heard the CAT series of preamps let me know how they compare to Threshold preamps, namely the Fet 10 series or an SL10. I can't find any CAT dealers up here in the northeast area so there's no real opportunity for direct listening. For context, this Sl10 unit is used in a phono-only setup, with a Stanton 881s mounted to a Basis TT, a Threshold S/500, and a pair of Sound Labs. Musical preference ranges classical piano, opera, jazz, and large orchestral pieces. The SL10 has the following updates:

• All electrolytic capacitors in the preamp module were changed for Elna Silmic II capacitors
• The resistors in the phono input section were changed to Vishay Dale metal film
• All RCA input jacks were replaced with gold plated copper units
• The volume potentiometer was replaced with an Alps BLUE
• All input/output wiring replaced with foamed teflon insulated Single Crystal continuous cast oxygen free copper wire
• The balance control was taken out of the circuit.
• Electrolytics in the power supply were replaced with high quality units of higher capacitance (this went up from 13,800 mF to 24,000 mF)
• The diodes in the power supply were replaced with ultra fast soft recovery hex fred
• The connecting cable between power supply and preamp was upgraded with higher AWG teflon insulated pure copper wire.
• The IEC connector was replaced with a gold plated copper unit.

The most recent tubed units that coursed through our system over a number of years were an AI Modulus 3A, Quicksilver, Counterpoint SA-5000, and a Precision Fidelity C7/A Revised. To these ears anyway, the Sl10 more sharply delineates the performers and articulates a clearer overall picture from any given composition, often with seemingly laser-like precision and responsiveness all the while managing the "whole." As for dynamics, I can barely recall the tubed units in this area -- despite their otherwise stellar reputation reproducing recordings -- to make a sensible comparison as to what the CAT might even begin to sound like.

Thanks for your input and pardon the vague scenario and request. Once again, reason for this post is that there's no CAT dealer that I know of in the region so no opportunity for direct listening impressions.