I am unfamiliar with the guts of the JLTi. If you have no resistor plugged into the aux phono inputs, is there then no load at all in place? In other words, is it designed such that one MUST plug some resistance into those inputs?
By default JLTi phono sage comes with 47k ohms internal resistors for MM and a pair of 100 ohms RCA plug resistors if you want to switch to high gain MC position.
But my custom made JLTi comes with 500k ohms internal resistors (Dlalolum used the same configuration), so i can plug-in whatever resistor using a pair of RCAs for MM or MC cartridges. All i need is just to switch gain for high or low position.
Some people prefers JLTi over Southerland and many other (up to $3500 in price) phono stages. it’s easy to find audiogoner’s comments or Fremer review. Personally i like it so much, now it’s even cheaper (under $800 for Australian made version) than previous luxury Swiss made version ($1795) designed by Allen Wright.
From the manufacturer website:
"The name denotes that this is a Solid State device using something that is called Diamond Transistor Theory, rarely used on High-End Audio products. The most simple and linear audio voltage amplification device is a Vacuum Triode which consists of three electrodes only. They are the Grid (input), Cathode (grounding) and Anode (output). On the other hand, the Solid State Transistor is a current device but is nowhere near as linear as the Triode. It consists of Base (input), Emitter (grounding) and Collector (output). The idea behind a Diamond Transistor is actually a composite circuit that emulates the near perfect and linear Transistor as a current device with the same three electrodes in the circuit then becomes the equivalent of the Base, Emitter and Collector followed by a Unity Gain Buffer.Our Diamond Transistor eschews feedback completely and uses Passive EQ" READ MORE