TEAC - UD-503 Audio signal converter

I am offering for sale a TEAC UD-503, a high-end USB DAC with built-in headphone amplifier, from TEAC's Reference 500 range.
2016 model, silver color, in exceptional condition, with very little use.
The device is strictly original, never modified, perfectly functional, and stored in a healthy environment (non-smoker).
Impeccable aesthetics and functioning.
Architecture and conversion
Double DAC AKM AK4490 (Dual Mono)
PCM conversion up to 32 bits / 384 kHz
Native DSD playback up to DSD256.
Separate clocks for PCM and DSD.
DSD Direct Mode (bypass of digital filtering)
Selection of AKM digital filters (PCM & DSD)
Headphone amplifier section
Symmetrical and asymmetrical levels
Helmet outings
XLR 4-pin (symmetrical)
Jack 6.35 mm
Sufficient power for demanding headsets.
Excellent channel separation and low background noise.
Connectique
Starters:
USB-B (asynchronous)
Optics
Coaxial
Outings:
Balanced XLRs
Asymmetrical RCA
4-pin XLR headphone
6.35 mm jack headphone
Advanced functions
DAC Mode / Preamp (variable or fixed outputs)
Precise analog volume control
Complete remote control
Aluminium chassis, careful power supply.
Condition & accessories
Condition: nearly new
Color: Silver
Included:
Original remote control
original box
Power cable
Documentation
Sound appreciation
The UD-503 offers neutral, detailed, and highly controlled reproduction, with excellent definition, a stable soundstage, and solid dynamics.
Today, there remains a reliable choice for a high-end headphone system or as a central DAC in a balanced hi-fi chain.
Careful shipment with original packaging or hand delivery.