David Berning Co Zotl Pre One With Phono - free shipping

    
This unit has been in my system since new. Low hours, always kept in a smoke free, pet free environment. Equipped with Stillpoints OEM Universal Resonance Damping technology (board standoffs and footers), this preamplifier is in perfect working order and is mint cosmetically. This unit is equipped with the optional phono stage as well as the optional moving coil step-up transformers. PREAMPLIFIER WILL SHIP WITH UPGRADED PREMIUM TUBES: SIEMENS E83CC (12AX7), SIEMENS ECC 801S (12AT7) AND PHILLIPS MINIWATT ECC82 (12AU7), ALL TESTING AS NEW, AS WELL AS THE ORIGINAL COMPLIMENT OF UNUSED TUBES SUPPLIED BY THE MANUFACTURER. David Berning products have universal power supplies and can be used anywhere in the world. In addition, this preamplifer can be run off a 12V battery supply. Modification/upgrade: the 4 key resistors in the output section were replaced with resistors of a different value on the recommendation of the manufacturer. Vishay "nude" resistors were used for this modification (see photo) which was carried out by an experienced technician. Please contact me for shipping quote. Preferred payment terms: email Interac payment, bank wire transfer or bank draft (bank draft must clear before unit will be shipped). I will also accept Paypal with fee. This is a reference level preamplifier. The remarkable on-board phono section is extremely quiet and overall, the unit has a vanishingly low noise floor. "Considered as a separate component, the preamplifier is full of gain, and presence partially due to the low-loss ceramic circuit board material. Put simply, it has a “big” sound and is also one of the best two line-stages I have ever heard, regardless of price." - Chris Thomas, Hi-Fi+ From the Berning website: "The high-level stage uses a balanced differential amplifier input section and a constant-current-loaded, single-ended ZOTL output second section. There are no coupling capacitors in the high-level stage, and dc offset cancellation at the output is done with a power supply servo that provides just the right voltage for the input section to precisely balance the output section. Hence the ZOTL PRE ONE is auto-biasing so that tubes can be changed without the need for manual biasing. The single-ended topology combined with a zero-feedback design yields distortion characteristics that are dominated by 2nd order harmonics and are considered to be more musical than other forms of distortion. The audio circuit board in the ZOTL PRE ONE is a special low-loss ceramic material and provides for this preamplifier having a more transparent sound with additional presence." Please email me with any questions you may have. Thanks for looking!