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Polish Audio Manufacture · Sucha Kamienica · Award: High Fidelity Best Product 2021

· contact@miltra.pl · CNC Machining & Vacuum Tubes

HIGH-END TUBE AUDIO · KRZYSZTOF MILLER

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HIGH-END AUDIO · KRZYSZTOF MILLER

Handcrafted Class-A tube amplifiers. Proprietary CNC machine workshop, solid 12 mm aluminum faceplates, discrete relay attenuator, and rich, organic acoustic performance.

Miltra Krzysztof Miller

Sucha Kamienica 9, 48-330 Nowy Świętów, Poland

Email: contact@miltra.pl

Shop & Products

All Products ↗ OTL Headphone Amplifiers Integrated Tube Amplifiers NOS Vacuum Tubes Turntable Accessories Your Cart

Engineering & Honors

✦ Award: High Fidelity Best Product 2021
✦ 1 dB Discrete Relay Attenuator (-78...0 dB)
✦ Dual Ball-Bearing CNC Dial with Brass Axle
✦ Dedicated Multilayer OFC Audio PCBs
✦ In-House Custom Wound EI Transformers
✦ Pure Class-A OTL Topology for Headphones

Support & Direct Advice

Handcrafted tube amplifiers built to order. Custom tube voicing and matching for your headphones or loudspeakers.

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24-Month Warranty & Direct Support

© 2026 Miltra Audio · Chief Engineer: Krzysztof Miller (Sucha Kamienica, Poland)

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