Journal

  • 76 entries
  • 2 rubrics
  • 2026-11-07 latest entry

The Demograf Audio journal: owner impressions gathered from audiophile forums, notes on tubes and converters, and practical advice on setting up a system.

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All 76 entries

  1. Article · 2026-11-07 · 10 min read

    How to read an amplifier measurement report

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  2. Article · 2026-11-07 · 10 min read

    Hi-fi loudspeakers or studio monitors: which one for home listening

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  3. Article · 2026-10-29 · 8 min read

    Demograf Endymion and Audio Note Ongaku compared: single-ended 211 and 845 amplifiers

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  4. Article · 2026-10-29 · 6 min read

    Single-driver loudspeakers in the room: walls, toe-in, height and distance

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  5. Article · 2026-10-29 · 7 min read

    An external master clock for a DAC: what it does and when you need one

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  6. Article · 2026-10-29 · 8 min read

    Balanced or single-ended inputs: what matters in a tube system

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  7. Article · 2026-10-29 · 7 min read

    Demograf Tantal, STAX SRM-T8000 and HeadAmp Blue Hawaii SE: tube amplifiers for electrostatic headphones

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  8. Article · 2026-10-29 · 7 min read

    Demograf Atlas and Western Electric 91E compared: two 300B amplifiers for loudspeakers and headphones

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  9. Article · 2026-10-26 · 10 min read

    A tube amplifier for classical music: watts, loudspeakers and the orchestra

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  10. Article · 2026-10-26 · 9 min read

    How much does a tube amplifier cost, and what are you paying for?

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  11. Article · 2026-10-18 · 6 min read

    Not for everyone: the circle of listeners around Demograf Audio

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  12. Article · 2026-10-18 · 9 min read

    Single-ended or push-pull: what changes in the sound and the speakers

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  13. Article · 2026-10-18 · 7 min read

    How a Demograf Audio amplifier is wired, and why

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  14. Article · 2026-10-18 · 9 min read

    Electrostatic or planar: what the amplifier must do

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  15. Article · 2026-10-18 · 9 min read

    Perseus MkII and Cassandra MkII: one driver or two ways

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  16. Article · 2026-10-18 · 8 min read

    Why Demograf Audio amplifiers use output transformers

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  17. Article · 2026-10-18 · 9 min read

    300B, 2A3, 45 or 845/211: how to choose the output triode

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  18. Article · 2026-10-18 · 9 min read

    Tube or solid-state output stage: Reference DAC, Hyperion, Charon

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  19. Article · 2026-10-18 · 9 min read

    Transmitting tubes in single-ended amplifiers: GM-70, 813 and 811

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  20. Article · 2026-10-18 · 13 min read

    The woods in a Demograf Audio chassis: seven species of the Caucasus and the Tian Shan

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  21. Article · 2026-10-18 · 10 min read

    Listening to Arabic music on vinyl: tarab, Umm Kulthum and classic Arabic records

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  22. Article · 2026-10-18 · 9 min read

    Hi-fi terms explained: a glossary of audiophile words, from soundstage to tube sound

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  23. Article · 2026-10-18 · 10 min read

    Electrostatic loudspeakers explained: how they work and what living with them involves

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  24. Article · 2026-10-18 · 10 min read

    Passive or active preamplifier: TVC, resistor attenuators and tube line stages

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  25. Article · 2026-10-18 · 11 min read

    Choosing loudspeakers for single-ended tube amplifiers: sensitivity, impedance and crossovers

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  26. Article · 2026-10-18 · 7 min read

    Amplifiers for headphones and loudspeakers, including electrostatic headphones

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  27. Review · 2026-10-18 · 6 min read

    Focal Utopia: owners’ impressions

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  28. Review · 2026-10-18 · 7 min read

    Audeze LCD-5: owners’ impressions

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  29. Article · 2026-10-18 · 9 min read

    NOS tubes explained: new old stock vs new production, and how to check them

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  30. Article · 2026-10-18 · 10 min read

    Vacuum tube life and care: how long tubes last, and tube amplifiers in hot climates

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  31. Article · 2026-10-18 · 7 min read

    Field-coil loudspeakers explained: electromagnets, field supplies and the Supravox 215-EXC

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  32. Review · 2026-10-18 · 5 min read

    Hector TVC preamplifier in passive mode: an owner’s review

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  33. Review · 2026-10-18 · 7 min read

    Holo Audio May: owners’ impressions

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  34. Article · 2026-10-18 · 9 min read

    NOS multibit DACs explained: TDA1541, PCM1704 and the classic chips

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  35. Review · 2026-10-18 · 6 min read

    Yulong DA1: owners’ impressions

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  36. Article · 2026-10-18 · 8 min read

    Power triodes for single-ended amplifiers: 45, 2A3, 300B, 845, 211 and 805

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  37. Review · 2026-10-18 · 7 min read

    Tantal headphone output measured by Reference Audio Analyzer

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  38. Article · 2026-10-18 · 3 min read

    Setup FAQ: Mistakes Audiophiles Make When Installing a System

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  39. Article · 2026-10-18 · 2 min read

    Common Audiophile Misconceptions

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  40. Review · 2026-10-18 · 6 min read

    Sennheiser HE 90 on an 811 tube amplifier: a listening session

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  41. Article · 2026-10-18 · 2 min read

    Choosing Loudspeaker Cable for the Audiophile

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  42. Article · 2026-10-18 · 3 min read

    FLAC vs MP3, DSD vs Vinyl: Choosing an Audio Format

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  43. Article · 2026-10-18 · 3 min read

    SACD or DSD: The Differences, and Which to Choose

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  44. Article · 2026-10-18 · 3 min read

    Tube Amplifiers: The Logic Behind the Sound

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  45. Article · 2026-10-18 · 3 min read

    Design Projects: The Room as Part of the System

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  46. Article · 2026-10-18 · 3 min read

    Demograf Audio Electrostatic Headphone Amplifiers

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  47. Review · 2026-10-18 · 5 min read

    Prometheus DSD DAC: an owner’s first impressions

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  48. Article · 2026-10-18 · 3 min read

    When a Tube Sounds Better Than a Transistor

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  49. Article · 2026-10-18 · 2 min read

    Getting the Most from Your Loudspeakers

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  50. Article · 2026-10-18 · 3 min read

    The Stereo Image

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  51. Article · 2026-10-18 · 3 min read

    Burr-Brown PCM63 Datasheet: Notes on a Classic DAC Chip

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  52. Article · 2026-10-18 · 2 min read

    Vinyl Forever

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  53. Review · 2026-10-18 · 4 min read

    A Demograf Audio class D amplifier prototype: listeners’ impressions

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  54. Review · 2026-10-18 · 9 min read

    CS4397 tube DAC and Tantal: one owner’s long-term review

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  55. Review · 2026-10-18 · 8 min read

    Hyperion vs Krell Reference 64: an owner compares AL4, EL8 and EF14 output stages

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  56. Review · 2026-10-18 · 8 min read

    Tantal 3C24 amplifier with electrostatic headphones: owners’ review

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  57. Review · 2026-10-18 · 6 min read

    Demograf Audio 300B amplifier and CS4397 DAC: a headphone system reviewed by listeners

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  58. Review · 2026-10-18 · 6 min read

    Tantal compared: Viva Solista, Sennheiser HEV 90 and the AL4 Rubedo

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  59. Review · 2026-10-18 · 4 min read

    Demograf Audio Hyperion vs Rockna Wavedream: an owner’s comparison

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  60. Review · 2026-10-18 · 6 min read

    Aglaya review: the red Demograf Audio tube headphone amplifier

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  61. Review · 2026-10-18 · 6 min read

    Demograf Audio Hyperion vs Lampizator Golden Gate II: owners’ comparison

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  62. Article · 2026-10-18 · 6 min read

    Can a tube system play metal? Listening notes on 300B and 45 amplifiers

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  63. Review · 2026-10-18 · 9 min read

    Hyperion CS4397 tube DAC: owners’ reviews

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  64. Review · 2026-10-18 · 10 min read

    DAC chips compared by ear: TDA1540, TDA1541, TDA1547, PCM1704 and CS4397

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  65. Review · 2026-10-18 · 5 min read

    Demograf Audio Hyperion vs MSB Analog DAC: listeners’ comparison

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  66. Review · 2026-10-18 · 4 min read

    Demograf Audio full-range loudspeakers: an owner’s review

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  67. Review · 2026-10-18 · 5 min read

    Demograf Audio Hyperion vs dCS Debussy: an owner’s blind comparison

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  68. Review · 2026-10-18 · 4 min read

    6B4G tube amplifier with a CS4397 DAC: one owner’s Demograf Audio system

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  69. Review · 2026-10-18 · 5 min read

    Two early Demograf Audio headphone amplifiers: a 6B4G and a transmitting triode

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  70. Review · 2026-10-18 · 9 min read

    Tantal 3C24 prototype: the 2014 listening sessions

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  71. Review · 2026-10-18 · 9 min read

    Aphrodite (TDA1547) DAC: owners’ reviews

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  72. Review · 2026-10-18 · 7 min read

    CD players modified by Demograf Audio: owners’ reviews of the Marantz CD-15 and Philips CD304

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  73. Review · 2026-10-18 · 9 min read

    Persephone (TDA1541) NOS DAC: owners’ reviews

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  74. Review · 2026-10-18 · 8 min read

    Interconnect and digital cables by Demograf Audio: owners’ reviews

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  75. Review · 2026-10-18 · 8 min read

    Calliope (TDA1540) NOS DAC: owners’ reviews

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  76. Review · 2026-10-18 · 9 min read

    ECL82 tube headphone amplifier: an owner’s review of an early Demograf Audio build

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