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Quick jump to the schedules in this pro report: GMP 435 S

      Test report - general data of German Maestro GMP 435 S headphone

      Frequency response, Impedance, Frequency response with standard AMPs


      Graphics setting view
      Range, dB:

      Perception of headphone frequency response curves of equal loudness ISO 226-2009


      General results
      General results German Maestro GMP 435 S
      Channel
      Summary (Right + Left)
      Sensitivity average in band from 100 Hz to 10 kHz, dB/V
      116,5
      Impedance average in band from 40 Hz to 15 kHz, ohm
      347,4
      For 94,0 dB SPL need, VRMS
      0,075
      For 94,0 dB SPL need, mW
      0,016

      The table shows a most important technical characteristics of German Maestro GMP 435 S

      *Center channel headphone is received by averaging between left and right channels



      Test conditions
      • Type of headphones: Over-ear
      • Measurements were performed on the stand:
        • with on the simulator of human head with ears HDM1

      

      Sensitivity of German Maestro GMP 435 S headphone


      Graphics setting view
      Channel:




      Table of measured characteristics
      Sensitivity German Maestro GMP 435 S
      Channel
      Left
      Right
      Sensitivity average in band from 100 Hz to 10 kHz, dB/V
      115,6
      117,3
      Sensitivity at 500 Hz at 1 V, dB
      114,6
      117,2
      Sensitivity at 500 Hz at 1 mW, dB
      109,9
      112,5
      Sensitivity at 1000 Hz at 1 V, dB
      113,8
      116,5
      Sensitivity at 1000 Hz at 1 mW, dB
      109,1
      111,8

      The sensitivity was calculated by data from the measuring stand HDM1


      Frequency response of German Maestro GMP 435 S headphone


      Graphics setting view
      Range, dB:
      Channel:




      Table of measured characteristics
      Frequency response German Maestro GMP 435 S
      Channel
      Left
      Right
      Variation in frequency response in band from 100 Hz to 10 kHz, dB
      -5,95, 7,09
      -7,52, 4,76

      Impedance of German Maestro GMP 435 S headphone


      Graphics setting view
      Channel:




      Table of measured characteristics
      Impedance German Maestro GMP 435 S
      Channel
      Left
      Right
      Impedance average in band from 40 Hz to 15 kHz, ohm
      347,4
      347,4
      Resistance at 500 Hz, ohm
      342,0
      342,0
      Resistance at 1000 Hz, ohm
      340,4
      340,4
      The minimum value in band from 40 Hz to 15 kHz at frequency, Hz
      1868,4
      1868,4
      The minimum value in band from 40 Hz to 15 kHz, ohm
      339,9
      339,9
      The maximum value in band from 40 Hz to 15 kHz at frequency, Hz
      90,5
      90,5
      The maximum value in band from 40 Hz to 15 kHz, ohm
      368,5
      368,5

      Electric phase of German Maestro GMP 435 S headphone


      Graphics setting view
      Range, degree:
      Channel:




      Table of measured characteristics
      Electric phase German Maestro GMP 435 S
      Channel
      Left
      Right
      Average variation in phase response in band from 20 Hz to 20 kHz, degree
      0,0
      0,0
      The minimum value in band from 20 Hz to 20 kHz at frequency, Hz
      174,5
      174,5
      The minimum value in band from 20 Hz to 20 kHz, degree
      -2,2
      -2,2
      The maximum value in band from 20 Hz to 20 kHz at frequency, Hz
      44,7
      44,7
      The maximum value in band from 20 Hz to 20 kHz, degree
      2,5
      2,5

      Frequency response of German Maestro GMP 435 S headphone when connected to amplifiers with constant output impedance


      Graphics setting view
      Range, dB:
      Channel:




      Table of measured characteristics
      Frequency response of headphone German Maestro GMP 435 S with amplifier with a constant impedance
      Channel
      Left
      Right
      Variation in FR from AMP 0 ohm in band 100 Hz to 10 kHz, dB
      -5,95, +7,09
      -7,52, +4,76
      Variation in FR from AMP 10 ohm in band 100 Hz to 10 kHz, dB
      -5,95, +7,09
      -7,52, +4,76
      Variation in FR from AMP 20 ohm in band 100 Hz to 10 kHz, dB
      -5,95, +7,08
      -7,52, +4,75
      Variation in FR from AMP 50 ohm in band 100 Hz to 10 kHz, dB
      -5,96, +7,08
      -7,52, +4,75
      Variation in FR from AMP 100 ohm in band 100 Hz to 10 kHz, dB
      -5,96, +7,07
      -7,52, +4,74
      Variation in FR from AMP 300 ohm in band 100 Hz to 10 kHz, dB
      -5,97, +7,05
      -7,52, +4,72

      Deviation of frequency response of German Maestro GMP 435 S headphone when connected to amplifiers with constant output impedance


      Graphics setting view
      Range, dB:
      Channel:




      Table of measured characteristics
      Variation in frequency response with amplifiers with constant output resistance from German Maestro GMP 435 S
      Channel
      Summary (Right + Left)
      With amplifier impedance at 10 ohm in band 20 Hz to 20 kHz, dB
      0,0
      With amplifier impedance at 20 ohm in band 20 Hz to 20 kHz, dB
      0,0
      With amplifier impedance at 50 ohm in band 20 Hz to 20 kHz, dB
      0,1
      With amplifier impedance at 100 ohm in band 20 Hz to 20 kHz, dB
      0,2
      With amplifier impedance at 300 ohm in band 20 Hz to 20 kHz, dB
      0,3

      *Center channel is received by data averaging between the left and right channels


      Frequency response of German Maestro GMP 435 S headphone when connected to an amplifier with zero output impedance and raising of output impedanse in low frequencies


      Graphics setting view
      Range, dB:
      Channel:




      Table of measured characteristics
      Frequency response with an amplifier with zero output resistance and raising of output resistance in low frequencies from German Maestro GMP 435 S
      Channel
      Left
      Right
      Variation in frequency response in band from 100 Hz to 10 kHz, dB
      -5,94, 7,10
      -7,52, 4,77

      Deviation of frequency response of German Maestro GMP 435 S headphone when connected to an amplifier with zero output impedance and raising of output impedanse in low frequencies


      Graphics setting view
      Range, dB:
      Channel:




      Table of measured characteristics
      Variance of frequency response German Maestro GMP 435 S depending on the total output resistance of the amplifier with zero resistance and a rise of resistance at low frequencies
      Variance frequency response at the frequency 20 Hz, dB
      -0,6
      Variance frequency response at the frequency 40 Hz, dB
      -0,2
      Variance frequency response at the frequency 80 Hz, dB
      -0,1

      Perception of headphone frequency response curves of equal loudness ISO 226-2009 of German Maestro GMP 435 S headphone


      Graphics setting view
      Channel:




      Table of measured characteristics
      Perception of headphone frequency response curves of equal loudness ISO 226-2009 from German Maestro GMP 435 S
      Channel
      Summary (Right + Left)
      From level 48 dB at 72 dB SPL in band 100 Hz to 10 kHz, dB
      -11,0, +13,5
      From level 36 dB at 72 dB SPL in band 100 Hz to 10 kHz, dB
      -9,8, +10,4
      From level 24 dB at 72 dB SPL in band 100 Hz to 10 kHz, dB
      -8,7, +7,3
      From level 12 dB at 72 dB SPL in band 100 Hz to 10 kHz, dB
      -7,6, +5,2
      From level 0 dB at 72 dB SPL in band 100 Hz to 10 kHz, dB
      -6,4, +5,9
      From level -12 dB at 72 dB SPL in band 100 Hz to 10 kHz, dB
      -5,3, +6,5
      From level -24 dB at 72 dB SPL in band 100 Hz to 10 kHz, dB
      -4,7, +7,1
      From level -36 dB at 72 dB SPL in band 100 Hz to 10 kHz, dB
      -7,4, +7,7

      *Center channel is received by data averaging between the left and right channels



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      More detailed

      Measurements of German Maestro GMP 435 S were carried out by Roman Kuznetsov on the hardware-software complex RAA.

      The German Maestro GMP 435 S test was conducted as a black box test, without regard to cost and prestige. This is the basic principle for making measurements, measurement reports and developing tests in RAA.

      I believe that it is important to do not make an absolute assessment of the device, but an aggregate assessment when working together with a source amplifier and taking into account external factors. This allows you to effectively reveal the potential of the entire set of devices or to make a more optimal choice of components.




      Kuznetsov Roman
      Founder of RAA



      Known by the nickname romanrex
      Аuthor of articles iXBT.com



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      German Maestro GMP 435 S is available in reports and services. You are in a professional report.

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