Threshold SL10 comparison with Threshold FET10e + FET10Pe

[stakkallapelli]

Hi,

Currently have a Threshold SL10 preamp with the following updates:

• All electrolytic capacitors in the preamp module were changed for Elna Silmic II capacitors, considered among the very best for audio applications
• 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 unit sounds excellent but this might be an opportunity to invest in a rare Threshold Fet10e + Fet10pe combination. I have not read about any comparisons between the SL10 and two-unit Fet10 combination.


Given the system is solely turntable based, can anyone given some direction on if it would be worth investing in a Threshold Fet10e line level + Fet10pe phono combination or would this be a lateral move rather than an upgrade.

Thanks for your help.

P.S.
Amp is a Threshold S/500 II
Cartridge is ZYX Airy 3 (0.34mv output)

 

[Elkerton]

An opinion only: sounds lateral.

 

[stakkallapelli]

Thanks for response and input.