DAC · MUSE
Custom DAC «MUSE» Tube R2R NOS (AD1865)
Base device — AD1865 6N11 / 6Z4 / CS8412 R2R NOS. You source the donor yourself — I return it upgraded, under warranty.
Why AD1865 6N11 / 6Z4 / CS8412 R2R NOS?
An exceptionally successful combination built around the vintage multi-bit AD1865 DAC (Analog Devices), complemented by tube-rectified power and a triode vacuum tube output stage operating in NOS mode. This platform offers the opportunity to create one of the finest multi-bit DACs in terms of price-to-performance, delivering a highly engaging tube sound signature! NB: For USB connectivity, this converter requires a USB-to-SPDIF interface, which I will gladly help you select and, if desired, modify!
Specification
- Chip
- AD1865 · Analog Devices
- Base unit
- AD1865 6N11 / 6Z4 / CS8412 R2R NOS
- Type
- 18-Bit Partially Segmented Multibit
- Audio Performance
- up to ~$2000
- Warranty
- 9 mo
- Turnaround
- 7–10 days
Full upgrade$479
This is the final cost for a complete turn-key upgrade. Budget adjustments are only possible when ordering additional exclusive options.
What will be done
- Full replacement of all electrolytic capacitors with genuine, top-tier components
- Upgrade of power supplies for all stages, including high-voltage rails
- Deep overhaul of the layout and circuit design surrounding AD1865 and CS8414
- Flagship digital input and analog output signal capacitors
- Radical optimization of the anode (B+) and heater power supplies
- Premium, parameters-matched Siemens/TESLA (Germany) vacuum tubes
What you get
A comprehensively improved and beautifully executed NOS multi-bit DAC built around an outstanding old-school chip, featuring an extended vacuum tube lifespan. Through the modification of this device, you will achieve a highly melodic and fluid sound signature, delivered by a superb circuit layout around the DAC using top-tier components, multi-stage power supply overhauls along with a specially matched output triode and select high-grade coupling capacitors.
Video
Technical reviews, upgrades, sound comparisons, and live client feedback — on my channel and in the YouTube community