About the AH Njoe Tjoeb 4000
The AH! Njoe Tjoeb 4000 is a highly modified Marantz CD4000 CD player featuring a tube output stage using Philips JAN 6922 NOS tubes, AH! SuperCrystal low-jitter oscillator, AC NoiseKiller, coaxial digital output, and relay-based muting. It includes a dedicated toroidal transformer for the tube stage, enhanced power supply with over 30,000 µF capacitance, premium components like Wima and Vishay parts, Philips TDA1546 DAC (or optional 24/192 upsampler with WM8740 DAC), and adjustable output voltage (0.7V, 1.25V, 2.5V, 5V) via solder bridges. The Philips VAM 1201 transport supports CD, CD-R, and CD-RW. Remote control offers full functions including 20-step volume. Known for musical, detailed, three-dimensional sound with lively midrange and strong bass. Options include TjoebSjoes feet, AC Direkt cord, tube rolling, and op-amp upgrades (e.g., OPA627).
Specifications
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