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  • MASS-Kobo Model 485

MASS-Kobo Model 485

Balanced Headphone Amplifier

  • Successor to the Model 394 series, the new Model 485 features an updated design with a 4.4mm balanced output, now the industry standard.
  • Balanced XLR inputs support +4dBm/-10dBm, while unbalanced RCA inputs follow the -10dBm standard.
  • Includes an output switch for “Low” (normal-efficiency headphones) and “Hi” (low-efficiency headphones like planars).
  • Equipped with custom conductive plastic faders by Tokyo KO-ON Denpa, typically used in high-end pro audio mixers.
  • It features a high performing, 4 channel TDK potentiometer.
Regular price £5,499.00
Sale price £5,499.00 Regular price
Unit price
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    MASS-Kobo Model 485

    MASS-Kobo Model 485

    Regular price £5,499.00
    Sale price £5,499.00 Regular price
    Unit price

    Made in JAPAN - Built to Order

    Successor to the popular Model 394 series; which was discontinued due to the discontinuation of some parts by their manufacturers, the Model 485 will see its design updated to include a 4.4mm balanced output, which has become the standard in recent years.

    Technical Details

    General

    • Balanced input/output stereo headphone amplifier

    Inputs & Outputs

    • XLR3-31 equivalent x 2 (electronically balanced), RCA x 2 (unbalanced)

    • 4.4mm Pentaconn, XLR4-31 (balanced stereo), XLR3-31 (L/R balanced)

    Input Specifications

    • 3.7kΩ (XLR), 12kΩ (RCA)

    • +4dBm / -10dBm (XLR), -10dBm (RCA)

    • +25dBm (XLR), +10dBm (RCA)

    Output Specifications

    • Unbalanced: Hi 12V / Low 9V
      Balanced: Hi 24V / Low 18V
      (32Ω load, 1kHz, THD+N 0.05%)

    • Unbalanced: Hi 4.2V / Low 3V
      Balanced: Hi 8.5V / Low 6V
      (32Ω load, 1kHz, THD+N 0.05%)

    • Balanced: 2.2W+2.2W
      Unbalanced: 600mW+600mW
      (32Ω load, 1kHz, THD+N 0.05%)

    Power & Physical

    • AC 100V–240V, 50Hz/60Hz

    • 0.5A (at AC100V)

    • Without feet: 285 x 230 x 50mm
      With feet: 285 x 258 x 52mm

    • 2.9kg (main unit only)

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