Jolida JD9 II Phono Tube Preamp w/Factory Upgrade I

For sale, we have a lightly used Jolida JD 9 II phono tube preamp. This moderately priced versatile unit is in perfect working order, and excellent physical condition. The two Tung Sol Gold Pin 12AX7 tubes tested like new on our Amplitrex AT-1000 tube tester. Capable of running both MM and MC cartridges, the load and gain can be easily adjusted via dip switches on the back panel. 

The factory upgrade I includes the following:

Resistor, capacitor and tube upgrade. The addition of a resistor array to the input and driver tubes. Clarity Cap ESA output capacitors, gold pin 12AX7 Tung Sol tubes. Retail, $250.

As stated previously, the preamp is in excellent physical condition, with only minor blemishes. Please see the many photos in the listing for further details.

We don't have the original box for this unit, but we take packaging and shipping seriously. We spare no expense and use heavy duty boxes, several inches of polyethylene foam on all sides of the unit, and use water activated, fiber reinforced tape on all seams.

Technical Specifications

The frequency response is listed in the spec sheet as 5Hz to 110KHz (+/- 1dB).
The signal to noise ratio is > 100dB, and total harmonic distortion is < 0.02%.
The input/output impedance of 100K/600 ohms.
It has settings for MM: 70dB, 5mV
MC High: 85dB, 0.5mV to 1.5mV
MC Low: 95dB, 0.25mV to 0.5mV
Input resistance: 100 ohm, 300 ohm, 1Kohm, 47Kohm
Input capacitance: 47pF, 100pF, 150pF, 220pF