ANK DAC 5.1 Signature Edition – Reference Balanced Tube DAC

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ANK DAC 5.1x Signature Edition – Handcrafted Reference DAC

The ANK DAC 5.1x Signature is a statement in digital audio design, handcrafted in limited production to deliver the highest levels of resolution, soundstage, and musicality. Each unit is meticulously assembled and tested one at a time, ensuring exceptional build quality and a truly analog-like digital playback experience.

Building on the strengths of the acclaimed DAC 4.1 series, the DAC 5.1x Signature elevates every stage — from the power supply and I/V transformers to the line stage and output section — with premium Audio Note components, precision engineering, and robust design.

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Experience the Sound

The DAC 5.1x Signature brings digital music to life with the warmth, depth, and dimensionality of a high-end phono stage. Expect natural tonal balance, a vast soundstage, and delicate resolution that reveals every nuance of your recordings. Designed for the finest audiophile systems, it offers a level of refinement few DACs can match.

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Specifications

• Output tubes: 12AU7 & ECC99*

• Rectifier tube: 5U4G / WE 274B

• Inputs (2 selectable):

  • 75Ω RCA (S/PDIF)

  • 110Ω AES/EBU (XLR) S/PDIF

  • USB (optional board)

• Outputs: Single-ended RCA & balanced XLR

• Output level: 2.0V RMS

• Output impedance: 13Ω

• Dimensions: 38.1 × 14.6 × 40.6 cm (W × H × D)

• Weight: 14 kg

• Chassis: 3mm black powder-coated aluminum
  *Tube rolling guide available for ECC99 position

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Parts Complement & Highlights

• Dual mains transformers (HV & filament)

• 3 wide-band chokes

• 2 × Triple C-Core CC-410 output transformers (lugged, upgradeable with high-end silver wire)

• 2 × 40mm large-can I/V transformers

• Dual toroidal digital transformer

• Signature Digital PCB (pre-assembled) with Audio Note tantalum resistors and Charcroft PF caps

• Audio Note Tantalum 1W resistors

• Audio Note copper 0.22µF / 600V film capacitors

• Elna Cerafine bypass capacitors (gain stage)

• PTFE silver-plated hookup wire

• Audio Note silver RCA connectors

• Super regulation for digital circuitry

• Analog output board with 12AU7 & ECC99 tubes

• SPDIF / AES switchable (USB optional)

• Sturdy PCBs with 2oz copper trace, heavy grounding, and HT traces

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Upgrade & Modification Paths

The DAC 5.1x Signature is already a world-class digital-to-analog converter, but A.L.A Audio also offers custom modification paths for those seeking the absolute edge in performance:

• Option 1: Upgraded coupling capacitors and output transformers (Quad Core upgrade + Duelund copper foil caps)

• Option 2: Advanced parts upgrades – please contact us for details

• Option 3: Full bespoke modification package – contact us to discuss tailored enhancements. At A.L.A Audio, we have built a number of fully customised, cost-no-object builds for our customers and can provide images and detailed specifications to showcase what’s possible at the ultimate level.

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📌 Built by A.L.A Audio, the official builder and distributor of ANK Kits in Australia.
📌 Each DAC 5.1x Signature is fully assembled, tested, and ready to perform in the most demanding high-end audio systems.

Please allow 2-3 weeks to assemble and test.