The model 1000 is Zandenﾕs stereo phono stage. While most phono playback equalization circuits in preamplifiers are CR (capacitor & resistor) or NF (negative feedback), Zanden has chosen another method. The model 1000 uses a fixed impedance circuit called a bridged T. It is constructed from a capacitor, resistors and an inductor. This has been the method of choice in professional playback systems for years and the most accurate. The amplifier section has our original NO-NFB (no negative feedback) vacuum tube circuit. The power supply is constructed from a tube rectifier and an input choke to avoid the switching noise of diodes. The tube heater has current regulated circuits to prevent a rush of current from causing damage and guarantees the stable release of thermo-electrons from the tubeﾕs cathode. High quality polypropylene film capacitors are used in the signal lines. The coils are manufactured on an automatic winding machine at our manufacturing facility. The base, front and rear panels are constructed of 16 mm thick aluminum to keep vibrations to a minimum. The unit is then covered with beautiful stainless steel polished to a mirror finish.
Although many people believe the recording curves of all LP records were unified with the RIAA curve, this is not true. The RIAA curve did not become the standard until the fifties, and many recording labels used different recording curves during this period and earlier. To achieve the optimum playback of all LPs the model 1000 allows the user to choose between the RIAA, Columbia and DECCA equalization curves by the simple turn of a mercury rotary switch. The input and phono equalization curve selection sections contain extremely reliable miniature relays, which maintain long-lasting, stable performance. The Zanden model 1000 stereo phono stage offers uncompromising playback of all your LPs.