The Tube MKIII

About the The Tube MKIII

Einstein The Tube MKIII is a refined iteration of the acclaimed The Tube series of tube preamplifiers, known for its exceptional sonic performance and engineering. It features a fully balanced, true dual-differential, pure class-A design with point-to-point wiring and a shunt-to-ground volume control located outside the signal path to avoid signal degradation. The MKIII isolates vibration and resonance from the input stage using a floating suspended sub-chassis, improving imaging, focus, and detail retrieval. It uses eighteen E88CC/6922 dual-triode tubes and one ECC82/12AU7 dual-triode tube, with separate transformers for each channel in a dual-mono configuration. The preamplifier offers a wide bandwidth from 2 Hz to 300 kHz, an ultralow output impedance of 50 ohms, a signal-to-noise ratio greater than 95 dB, and total harmonic distortion less than 0.05% at 1 kHz and 1.5 V output. It has a minimalist front panel with two large knobs for input selection and volume control, and a rear panel with balanced XLR inputs and outputs, plus RCA jacks for recording and monitor inputs. The unit weighs approximately 33 lbs and measures 17 x 15 x 6 inches (WxDxH). It requires a power cord with a right-angled IEC plug due to the power inlet location. The Tube MKIII is praised for its dynamic range, low noise, and musicality, making it a reference-level preamplifier for audiophiles.