SW1X III SPX Tube DAC

FEATURES:

SW1X Audio Design™ DAC III Features:

• Pure NOS (Non-Oversampling, zero digital domain filtering) R2R design based on the TDA1541 DAC chip.

• Specially selected and harmonically matched components and materials throughout.

• Anode follower, zero negative feedback, single-ended, Class A, RC (resistive loaded, capacitive de-coupled) valve amplification topology.

• 6N6P double triode valve output stage.

• Valve rectified CLC (choke filtered) power supply: 6X5 indirectly heated or directly heated 5Y3 (SPX version).

• Dynamic Element Matching (DEM) of the TDA1541 powered by an asynchronous E180F valve clock with EAA91 valve rectified power supply.

• Active I/V conversion via a specially selected transistor (<10 Ohm input impedance) with the shortest signal path directly connected to the tube grid.

• Discrete transistor shunt voltage regulated power supplies for the TDA1541, SPDIF receiver, and active I/V conversion.

• Internally wired exclusively with SW1X Magnum, Genesis, and Opus conductors (single strand or Litz copper).

• M6 grain-oriented EI core mains transformers and chokes (SPX version).

• Black Gate de-coupling capacitors for TDA1541 DAC (SPX version).

• AN copper foil signal output de-coupling capacitors.

• AB 2W non-magnetic carbon film resistors (SPX version).

TUBE COMPLEMENT (SPX VERSION)

• 1 × 5Y3 (rectifier)

• 1 × 6N6P (output)

• 1 × E180F (DEM valve clock)

• 1 × EAA91 (rectifier for DEM power supply)

INPUTS AND OUTPUTS

• Supports up to 24Bit/96kHz digital coaxial S/PDIF input (USB input on VSB version).

• Single-ended RCA outputs (Balanced versions offer both true balanced and single-ended outputs).

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