{
  "schema_version": "1.0.0",
  "updated": "2026-10-07",
  "measurements": [
    {
      "measurement_id": "GS-2026-0009",
      "title": "BENZ SPJ — VYGER Atlantis / VYGER INERTIAL / ART USB Phono Plus — Hi Fidelity Milan",
      "short_title": "BENZ SPJ / VYGER Atlantis / VYGER INERTIAL / ART USB Phono Plus",
      "date": "2026-10-04",
      "status": "draft",
      "hero_image": "assets/GS-2026-0009/web/hero-2400.webp",
      "summary": "Measured as found in the CHARIO Academy room at Hi Fidelity Milan, with no setup adjustments: the BENZ SPJ / VYGER Atlantis / VYGER INERTIAL / ART USB Phono Plus chain averaged 33.33 RPM (−0.01%), with 0.032% DIN-shaped wow and flutter, 27.4 dB average separation and +0.49 dB channel balance. Harmonics were steady during recording. The measurer reports a successful 100 µm tracking-ladder pass and credits the new INERTIAL tonearm as a major contributor to that performance.",
      "primary_metrics": {
        "playback_rpm": 33.33,
        "speed_error_percent": -0.01,
        "din_shaped_wow_flutter_percent": 0.032,
        "average_separation_db": 27.4
      },
      "measurement_url": "measurements/GS-2026-0009.html",
      "provenance_label": "Hi Fidelity Milan — CHARIO Academy room; no setup adjustments"
    },
    {
      "measurement_id": "GS-2026-0008",
      "title": "Ortofon 2M Bronze — Rega P3 / Audio Research SP20 / EVO4 — 1 kHz Reference Check",
      "short_title": "Ortofon 2M Bronze / Rega P3 / SP20 / EVO4",
      "date": "2026-10-02",
      "status": "draft",
      "hero_image": "assets/GS-2026-0008/web/hero-1448.webp",
      "summary": "The Ortofon 2M Bronze delivers strong 1 kHz separation in this Rega P3 / Audio Research SP20 / EVO4 capture: 32.8 dB on average, with +0.53 dB channel balance. Playback averaged 33.34 RPM (+0.01%) with 0.027% DIN-shaped wow and flutter. THD was 0.98% left and 1.13% right; repeat the right-channel third-harmonic check before changing setup.",
      "primary_metrics": {
        "playback_rpm": 33.34,
        "speed_error_percent": 0.01,
        "din_shaped_wow_flutter_percent": 0.027,
        "average_separation_db": 32.8
      },
      "measurement_url": "measurements/GS-2026-0008.html",
      "provenance_label": "DSR measurement session; setup metadata incomplete"
    },
    {
      "measurement_id": "GS-2026-0005",
      "title": "Technics SL-1410 MK2 / Empire 7000/III — 1 kHz Playback Check",
      "short_title": "Empire 7000/III / Technics SL-1410 MK2 / ART USB Phono Plus",
      "date": "2026-10-01",
      "status": "draft",
      "hero_image": "assets/GS-2026-0005/web/hero-1448.webp",
      "summary": "The Technics SL-1410 MK2 averaged 33.33 RPM (−0.01%) with 0.040% DIN-shaped wow and flutter. Separation averaged 23.8 dB, but the two crosstalk directions differed by about 2 dB; channel balance was −0.26 dB. Harmonics stayed steady within this recording, while THD was higher on the left (2.26%) than the right (1.85%).",
      "primary_metrics": {
        "playback_rpm": 33.33,
        "speed_error_percent": -0.01,
        "din_shaped_wow_flutter_percent": 0.04,
        "average_separation_db": 23.8
      },
      "measurement_url": "measurements/GS-2026-0005.html",
      "provenance_label": "DSR measurement session; setup metadata incomplete"
    },
    {
      "measurement_id": "GS-2026-0007",
      "title": "Goldring 2100 — Micro Seiki DQX-500 — 1 kHz Reference Check",
      "short_title": "Goldring 2100 / Micro Seiki DQX-500",
      "date": "2026-10-01",
      "status": "draft",
      "hero_image": "assets/GS-2026-0007/web/hero-1448.webp",
      "summary": "The DQX-500 capture averaged 33.33 RPM (−0.01%) with 0.032% DIN-shaped wow and flutter. Average 1 kHz separation was 20.1 dB and channel balance was −0.54 dB. The right-channel third harmonic changed most during recording, so the report advises repeating the capture before adjusting the cartridge setup.",
      "primary_metrics": {
        "playback_rpm": 33.33,
        "speed_error_percent": -0.01,
        "din_shaped_wow_flutter_percent": 0.032,
        "average_separation_db": 20.1
      },
      "measurement_url": "measurements/GS-2026-0007.html",
      "provenance_label": "DSR measurement session; setup metadata incomplete"
    },
    {
      "measurement_id": "GS-2026-0003",
      "title": "Audio-Technica AT-OC9XML — Rega P3 / Rega RB330 / Audio Research SP20 — 1 kHz Reference Check",
      "short_title": "AT-OC9XML / Rega P3 / SP20",
      "date": "2026-09-05",
      "status": "draft",
      "hero_image": "assets/GS-2026-0003/web/hero-2400.webp",
      "summary": "In this Rega P3 / RB330 capture, playback settled at 33.34 RPM (+0.02%) with 0.030% DIN-shaped wow and flutter. Average 1 kHz separation was 31.8 dB and channel balance was −0.24 dB; the left-channel third harmonic changed most during the recording, so a repeat is advisable before changing setup.",
      "primary_metrics": {
        "playback_rpm": 33.34,
        "speed_error_percent": 0.02,
        "din_shaped_wow_flutter_percent": 0.03,
        "average_separation_db": 31.8
      },
      "measurement_url": "measurements/GS-2026-0003.html",
      "provenance_label": "DSR measurement session; sample ownership not recorded"
    }
  ]
}